# 1806–07 United States House of Representatives elections

The 1806–07 United States House of Representatives elections were held on various dates in various states between April 29, 1806 (in New York) and August 4, 1807 (in Tennessee). Each state set its own date for its elections to the House of Representatives before the first session of the 10th United States Congress convened on October 26, 1807. They occurred during Thomas Jefferson's second term. Elections were held for all 142 seats, representing 17 states.
The Democratic-Republicans continued to build on their huge supermajority. They were actually able to take over two more seats than they had in the previous Congress, which they controlled by a margin of better than three to one. Commitment to agrarian policy allowed the Democratic-Republicans to dominate rural districts, which represented the bulk of the nation. On the other hand, supporters of the Federalists, even in their traditional base of support in the urban centers of coastal New England, continued to lament the ineffectiveness of their party and its lack of electoral appeal.
With a net change of 2 seats between the two parties, this was the smallest net change in US history in the House of Representatives until 2024.

## Election summaries

| 116 | 26 |
| Democratic-Republican | Federalist |
| State | Type | Date | Total seats | Democratic- Republican | Democratic- Republican | Federalist | Federalist |
| State | Type | Date | Total seats | Seats | Change | Seats | Change |
| New York | Districts | April 29 – May 1, 1806 | 17 | 15 | | 2 | |
| Kentucky | Districts | August 4, 1806 | 6 | 6 | | 0 | |
| North Carolina | Districts | August 15, 1806 | 12 | 11 | 1 | 1 | 1 |
| New Hampshire | At-large | August 25, 1806 | 5 | 5 | 5 | 0 | 5 |
| Rhode Island | At-large | August 26, 1806 | 2 | 2 | | 0 | |
| Vermont | Districts | September 2, 1806 | 4 | 2 | | 2 | |
| Connecticut | At-large | September 15, 1806 | 7 | 0 | | 7 | |
| Georgia | At-large | October 6, 1806 | 4 | 4 | | 0 | |
| Maryland | Districts | October 6, 1806 | 9 | 6 | 1 | 3 | 1 |
| Delaware | At-large | October 7, 1806 | 1 | 0 | | 1 | |
| South Carolina | Districts | October 13–14, 1806 | 8 | 8 | | 0 | |
| Ohio | At-large | October 14, 1806 | 1 | 1 | | 0 | |
| Pennsylvania | Districts | October 14, 1806 | 18 | 15 | 2 | 3 | 2 |
| New Jersey | At-large | October 14–15, 1806 | 6 | 6 | | 0 | |
| Massachusetts | Districts | November 3, 1806 | 17 | 11 | 1 | 6 | 1 |
| Late elections (After the March 4, 1807 beginning of the next Congress) ||||||||
| Virginia | Districts | April 1807 | 22 | 21 | | 1 | |
| Tennessee | Districts | August 3–4, 1807 | 3 | 3 | | 0 | |
| Total | Total | Total | 142 | 116 81.7% | 2 | 26 18.3% | 2 |
House seats
Dem-Republican
81.69%
Federalist
18.31% :

## Special elections

There were special elections in 1806 and 1807 during the 9th United States Congress and 10th United States Congress.
Elections are sorted here by date then district.

### 9th Congress

| District | Incumbent | Incumbent | Incumbent | This race | This race |
| District | Member / Delegate | Party | First elected | Results | Candidates |
| North Carolina 10 "Rowan district" | Nathaniel Alexander | Democratic- Republican | 1803 | Incumbent resigned November 1805 after being elected Governor of North Carolina. New member elected. Democratic-Republican hold. Successor seated February 24, 1806. Winner was later elected to the next term; see below. | ▌Y Evan S. Alexander (Democratic-Republican) ▌Robert Locke (Democratic-Republican) |
| Connecticut at-large | John Cotton Smith | Federalist | 1800 (special) | Incumbent resigned sometime in August 1806. New member elected September 15, 1806 and seated December 1, 1806. Federalist hold. Winner declined to run for the next term; see below. | ▌Y Theodore Dwight (Federalist) [data missing] |
| Georgia at-large | Joseph Bryan | Democratic- Republican | 1803 (special) | Incumbent resigned sometime in 1806. New member elected September 15, 1806 and seated September 1, 1806. Democratic-Republican hold. Winner was later elected to the next term; see below. | ▌Y Dennis Smelt (Democratic-Republican) 51.9% ▌George M. Troup (Unknown) 42.6% ▌Buckner Harris (Unknown) 5.5% Others <0.1% |
| Georgia at-large | Thomas Spalding | Democratic- Republican | 1805 (contested) | Incumbent resigned sometime in 1806. New member elected before December 6, 1806, and seated January 26, 1807. Democratic-Republican hold. Winner had already been elected to the next term; see below. | ▌Y William W. Bibb (Democratic-Republican) 74.2% ▌David Creswell (Unknown) 25.8% |
| Maryland 7 | Joseph H. Nicholson | Democratic- Republican | 1798 (special) | Incumbent resigned March 1, 1806. New member elected October 4, 1806 and seated December 3, 1806. Democratic-Republican hold. Winner also elected to the next term; see below. | ▌Y Edward Lloyd (Democratic-Republican) 83.8% ▌James Brown (Unknown) 16.2% |
| Virginia 13 | Christopher H. Clark | Democratic- Republican | 1804 (special) | Incumbent resigned July 1, 1806. New member elected in early November 1806 and seated December 1, 1806. Democratic-Republican hold. Winner later elected to the next term; see below. | ▌Y William A. Burwell (Democratic-Republican) ▌Henry Callaway (Unknown) |
| Pennsylvania 1 | Michael Leib | Democratic- Republican | 1798 | Incumbent resigned February 14, 1806. New member elected November 27, 1806 and seated December 8, 1806. Democratic-Republican hold. | ▌Y John Porter (Democratic-Republican) [data missing] |
| Orleans Territory at-large | None (new district) | None (new district) | None (new district) | New delegate elected December 1, 1806. | ▌Y Daniel Clarke (Independent) [data missing] |

### 10th Congress

| District | Incumbent | Incumbent | Incumbent | This race | This race |
| District | Member | Party | First elected | Results | Candidates |
| South Carolina 6 | Levi Casey | Democratic- Republican | 1803 | Incumbent/member-elect died February 3, 1807. Seat remained unfilled in the 9th Congress. New member elected June 1–2, 1807 and seated October 26, 1807. Democratic-Republican hold. | ▌Y Joseph Calhoun (Democratic-Republican) [data missing] |
| Massachusetts 12 "Berkshire district" | Barnabas Bidwell | Democratic- Republican | 1804 | Incumbent resigned July 13, 1807 to become Massachusetts Attorney General. New member elected in 1807 and seated November 2, 1807. Democratic-Republican hold. | ▌Y Ezekiel Bacon (Democratic-Republican) 84.4% ▌Daniel Dewey (Federalist) 10.8% Scattering 4.8% |
| Delaware at-large | James M. Broom | Federalist | 1804 | Incumbent/Representative-elect resigned in 1807. New member elected October 6, 1807 and seated December 2, 1807. Federalist hold. | ▌Y Nicholas Van Dyke (Federalist) 51.7% ▌John Dickinson (Democratic-Republican) 48.3% Scattering <0.1% |

## Connecticut

Connecticut elected its members on September 15, 1806.
| District | Incumbent | Incumbent | Incumbent | This race | This race |
| District | Member | Party | First elected | Results | Candidates |
| Connecticut at-large 7 seats on a general ticket | Benjamin Tallmadge | Federalist | 1801 (special) | Incumbent re-elected. | ▌Y Benjamin Tallmadge (Federalist) ▌Y Jonathan O. Moseley (Federalist) ▌Y Epaphroditus Champion (Federalist) ▌Y Timothy Pitkin (Federalist) ▌Y Lewis B. Sturges (Federalist) ▌Y John Davenport (Federalist) ▌Y Samuel W. Dana (Federalist) ▌Sylvanus Backus (Federalist) ▌Asa Bacon (Federalist) ▌John Caldwell (Federalist) ▌Sylvester Gilbert (Federalist) ▌Uriel Holmes (Federalist) ▌Ebenezer Huntington (Federalist) ▌Lyman Law (Federalist) ▌Samuel B. Sherwood (Federalist) ▌John Cotton Smith (Federalist) ▌Nathaniel Terry (Federalist) ▌Noah Webster (Federalist) |
| Connecticut at-large 7 seats on a general ticket | Jonathan O. Moseley | Federalist | 1804 | Incumbent re-elected. | ▌Y Benjamin Tallmadge (Federalist) ▌Y Jonathan O. Moseley (Federalist) ▌Y Epaphroditus Champion (Federalist) ▌Y Timothy Pitkin (Federalist) ▌Y Lewis B. Sturges (Federalist) ▌Y John Davenport (Federalist) ▌Y Samuel W. Dana (Federalist) ▌Sylvanus Backus (Federalist) ▌Asa Bacon (Federalist) ▌John Caldwell (Federalist) ▌Sylvester Gilbert (Federalist) ▌Uriel Holmes (Federalist) ▌Ebenezer Huntington (Federalist) ▌Lyman Law (Federalist) ▌Samuel B. Sherwood (Federalist) ▌John Cotton Smith (Federalist) ▌Nathaniel Terry (Federalist) ▌Noah Webster (Federalist) |
| Connecticut at-large 7 seats on a general ticket | John Cotton Smith | Federalist | 1800 (special) | Incumbent resigned in August 1806. Federalist hold. Successor was not elected to finish the current term; see above. | ▌Y Benjamin Tallmadge (Federalist) ▌Y Jonathan O. Moseley (Federalist) ▌Y Epaphroditus Champion (Federalist) ▌Y Timothy Pitkin (Federalist) ▌Y Lewis B. Sturges (Federalist) ▌Y John Davenport (Federalist) ▌Y Samuel W. Dana (Federalist) ▌Sylvanus Backus (Federalist) ▌Asa Bacon (Federalist) ▌John Caldwell (Federalist) ▌Sylvester Gilbert (Federalist) ▌Uriel Holmes (Federalist) ▌Ebenezer Huntington (Federalist) ▌Lyman Law (Federalist) ▌Samuel B. Sherwood (Federalist) ▌John Cotton Smith (Federalist) ▌Nathaniel Terry (Federalist) ▌Noah Webster (Federalist) |
| Connecticut at-large 7 seats on a general ticket | Timothy Pitkin | Federalist | 1805 (special) | Incumbent re-elected. | ▌Y Benjamin Tallmadge (Federalist) ▌Y Jonathan O. Moseley (Federalist) ▌Y Epaphroditus Champion (Federalist) ▌Y Timothy Pitkin (Federalist) ▌Y Lewis B. Sturges (Federalist) ▌Y John Davenport (Federalist) ▌Y Samuel W. Dana (Federalist) ▌Sylvanus Backus (Federalist) ▌Asa Bacon (Federalist) ▌John Caldwell (Federalist) ▌Sylvester Gilbert (Federalist) ▌Uriel Holmes (Federalist) ▌Ebenezer Huntington (Federalist) ▌Lyman Law (Federalist) ▌Samuel B. Sherwood (Federalist) ▌John Cotton Smith (Federalist) ▌Nathaniel Terry (Federalist) ▌Noah Webster (Federalist) |
| Connecticut at-large 7 seats on a general ticket | Lewis B. Sturges | Federalist | 1805 (special) | Incumbent re-elected. | ▌Y Benjamin Tallmadge (Federalist) ▌Y Jonathan O. Moseley (Federalist) ▌Y Epaphroditus Champion (Federalist) ▌Y Timothy Pitkin (Federalist) ▌Y Lewis B. Sturges (Federalist) ▌Y John Davenport (Federalist) ▌Y Samuel W. Dana (Federalist) ▌Sylvanus Backus (Federalist) ▌Asa Bacon (Federalist) ▌John Caldwell (Federalist) ▌Sylvester Gilbert (Federalist) ▌Uriel Holmes (Federalist) ▌Ebenezer Huntington (Federalist) ▌Lyman Law (Federalist) ▌Samuel B. Sherwood (Federalist) ▌John Cotton Smith (Federalist) ▌Nathaniel Terry (Federalist) ▌Noah Webster (Federalist) |
| Connecticut at-large 7 seats on a general ticket | John Davenport | Federalist | 1798 | Incumbent re-elected. | ▌Y Benjamin Tallmadge (Federalist) ▌Y Jonathan O. Moseley (Federalist) ▌Y Epaphroditus Champion (Federalist) ▌Y Timothy Pitkin (Federalist) ▌Y Lewis B. Sturges (Federalist) ▌Y John Davenport (Federalist) ▌Y Samuel W. Dana (Federalist) ▌Sylvanus Backus (Federalist) ▌Asa Bacon (Federalist) ▌John Caldwell (Federalist) ▌Sylvester Gilbert (Federalist) ▌Uriel Holmes (Federalist) ▌Ebenezer Huntington (Federalist) ▌Lyman Law (Federalist) ▌Samuel B. Sherwood (Federalist) ▌John Cotton Smith (Federalist) ▌Nathaniel Terry (Federalist) ▌Noah Webster (Federalist) |
| Connecticut at-large 7 seats on a general ticket | Samuel W. Dana | Federalist | 1798 | Incumbent re-elected. | ▌Y Benjamin Tallmadge (Federalist) ▌Y Jonathan O. Moseley (Federalist) ▌Y Epaphroditus Champion (Federalist) ▌Y Timothy Pitkin (Federalist) ▌Y Lewis B. Sturges (Federalist) ▌Y John Davenport (Federalist) ▌Y Samuel W. Dana (Federalist) ▌Sylvanus Backus (Federalist) ▌Asa Bacon (Federalist) ▌John Caldwell (Federalist) ▌Sylvester Gilbert (Federalist) ▌Uriel Holmes (Federalist) ▌Ebenezer Huntington (Federalist) ▌Lyman Law (Federalist) ▌Samuel B. Sherwood (Federalist) ▌John Cotton Smith (Federalist) ▌Nathaniel Terry (Federalist) ▌Noah Webster (Federalist) |

## Delaware

Delaware elected its member October 7, 1806.
| District | Incumbent | Incumbent | Incumbent | This race | This race |
| District | Member | Party | First elected | Results | Candidates |
| Delaware at-large | James M. Broom | Federalist | 1805 (special) | Incumbent re-elected. Incumbent resigned before the next Congress and declined the seat, leading to a special election; see above. | ▌Y James M. Broom (Federalist) 60.5% ▌Thomas Fitzgerald (Democratic-Republican) 21.3% ▌Joseph Haslet (Democratic-Republican) 9.8% ▌Thomas Montgomery (Democratic-Republican) 8.3% |

## Georgia

Georgia elected its members October 6, 1806.
| District | Incumbent | Incumbent | Incumbent | This race | This race |
| District | Member | Party | First elected | Results | Candidates |
| Georgia at-large 4 seats on a general ticket | Dennis Smelt | Democratic- Republican | 1806 (special) | Incumbent re-elected. | ▌Y Dennis Smelt (Democratic-Republican) 18.4% ▌Y George Troup (Democratic-Republican) 16.7% ▌Y William W. Bibb (Democratic-Republican) 15.3% ▌Y Howell Cobb (Democratic-Republican) 12.8% ▌Elijah Clarke (Democratic-Republican) 12.5% ▌William Barnett (Democratic-Republican) 7.2% ▌Thomas Carr (Unknown) 6.2% ▌James Simms (Unknown) 6.2% ▌Thomas Spalding (Democratic-Republican) 3.1% ▌Obediah Jones (Unknown) 1.0% ▌Buckner Harris (Unknown) 0.6% |
| Georgia at-large 4 seats on a general ticket | David Meriwether | Democratic- Republican | 1804 | Incumbent retired. Democratic-Republican hold. | ▌Y Dennis Smelt (Democratic-Republican) 18.4% ▌Y George Troup (Democratic-Republican) 16.7% ▌Y William W. Bibb (Democratic-Republican) 15.3% ▌Y Howell Cobb (Democratic-Republican) 12.8% ▌Elijah Clarke (Democratic-Republican) 12.5% ▌William Barnett (Democratic-Republican) 7.2% ▌Thomas Carr (Unknown) 6.2% ▌James Simms (Unknown) 6.2% ▌Thomas Spalding (Democratic-Republican) 3.1% ▌Obediah Jones (Unknown) 1.0% ▌Buckner Harris (Unknown) 0.6% |
| Georgia at-large 4 seats on a general ticket | Thomas Spalding | Democratic- Republican | 1805 (contest) | Incumbent lost re-election. Democratic-Republican hold. Incumbent resigned in 1806, leading to a special election; see above. | ▌Y Dennis Smelt (Democratic-Republican) 18.4% ▌Y George Troup (Democratic-Republican) 16.7% ▌Y William W. Bibb (Democratic-Republican) 15.3% ▌Y Howell Cobb (Democratic-Republican) 12.8% ▌Elijah Clarke (Democratic-Republican) 12.5% ▌William Barnett (Democratic-Republican) 7.2% ▌Thomas Carr (Unknown) 6.2% ▌James Simms (Unknown) 6.2% ▌Thomas Spalding (Democratic-Republican) 3.1% ▌Obediah Jones (Unknown) 1.0% ▌Buckner Harris (Unknown) 0.6% |
| Georgia at-large 4 seats on a general ticket | Peter Early | Democratic- Republican | 1804 | Incumbent retired. Democratic-Republican hold. | ▌Y Dennis Smelt (Democratic-Republican) 18.4% ▌Y George Troup (Democratic-Republican) 16.7% ▌Y William W. Bibb (Democratic-Republican) 15.3% ▌Y Howell Cobb (Democratic-Republican) 12.8% ▌Elijah Clarke (Democratic-Republican) 12.5% ▌William Barnett (Democratic-Republican) 7.2% ▌Thomas Carr (Unknown) 6.2% ▌James Simms (Unknown) 6.2% ▌Thomas Spalding (Democratic-Republican) 3.1% ▌Obediah Jones (Unknown) 1.0% ▌Buckner Harris (Unknown) 0.6% |

## Indiana Territory

See Non-voting delegates, below.

## Kentucky

Kentucky elected its members August 4, 1806.
| District | Incumbent | Incumbent | Incumbent | This race | This race |
| District | Member | Party | First elected | Results | Candidates |
| Kentucky 1 | Matthew Lyon | Democratic-Republican | 1797 (Vermont) 1803 | Incumbent re-elected. | ▌Y Matthew Lyon (Democratic-Republican) 57.9% ▌David Walker (Democratic-Republican) 42.1% |
| Kentucky 2 | John Boyle | Democratic-Republican | 1803 | Incumbent re-elected. | ▌Y John Boyle (Democratic-Republican) |
| Kentucky 3 | Matthew Walton | Democratic-Republican | 1803 | Incumbent retired. Democratic-Republican hold. | ▌Y John Rowan (Democratic-Republican) 55.8% ▌Stephen Ormsby (Democratic-Republican) 44.2% |
| Kentucky 4 | Thomas Sandford | Democratic-Republican | 1803 | Incumbent lost re-election. Democratic-Republican hold. | ▌Y Richard M. Johnson (Democratic-Republican) 42.5% ▌Thomas Sandford (Democratic-Republican) 30.2% ▌James Moore (Unknown) 27.3% |
| Kentucky 5 | John Fowler | Democratic-Republican | 1797 | Incumbent retired. Democratic-Republican hold. | ▌Y Benjamin Howard (Democratic-Republican) Uncontested |
| Kentucky 6 | George M. Bedinger | Democratic-Republican | 1803 | Incumbent retired. Democratic-Republican hold. | ▌Y Joseph Desha (Democratic-Republican) |

## Maryland

Maryland elected its members October 6, 1806.
| District | Incumbent | Incumbent | Incumbent | This race | This race |
| District | Member | Party | First elected | Results | Candidates |
| Maryland 1 | John Campbell | Federalist | 1801 | Incumbent re-elected. | ▌Y John Campbell (Federalist) 99.9% |
| Maryland 2 | Leonard Covington | Democratic-Republican | 1804 | Incumbent lost re-election. Democratic-Republican hold. | ▌Y Archibald Van Horne (Democratic-Republican) 58.4% ▌Leonard Covington (Democratic-Republican) 41.5% |
| Maryland 3 | Patrick Magruder | Democratic-Republican | 1801 | Incumbent lost re-election. Federalist gain. | ▌Y Philip B. Key (Federalist) 53.3% ▌Patrick Magruder (Democratic-Republican) 46.7% |
| Maryland 4 | Roger Nelson | Democratic-Republican | 1804 (special) | Incumbent re-elected. | ▌Y Roger Nelson (Democratic-Republican) 96.4% ▌Nathaniel Rochester (D-R Quid) 3.0% |
| Maryland 5 Plural district with 2 seats | Nicholas R. Moore | Democratic-Republican | 1803 | Incumbent re-elected. | ▌Y Nicholas R. Moore (Democratic-Republican) 44.5% ▌Y William McCreery (Democratic-Republican) 25.7% ▌Joshua Barney (Quid) 14.9% ▌John Scott (Federalist) 14.9% |
| Maryland 5 Plural district with 2 seats | William McCreery | Democratic-Republican | 1803 | Incumbent re-elected. | ▌Y Nicholas R. Moore (Democratic-Republican) 44.5% ▌Y William McCreery (Democratic-Republican) 25.7% ▌Joshua Barney (Quid) 14.9% ▌John Scott (Federalist) 14.9% |
| Maryland 6 | John Archer | Democratic-Republican | 1801 | Incumbent lost re-election. Democratic-Republican hold. | ▌Y John Montgomery (Democratic-Republican) 50.2% ▌John Archer (D-R Quid) 48.7% ▌Samuel Sutton (Unknown) 1.0% |
| Maryland 7 | Joseph H. Nicholson | Democratic-Republican | 1798 (special) | Incumbent resigned March 1, 1806. Democratic-Republican hold. Winner had already been elected to finish the current term; see above. | ▌Y Edward Lloyd (Democratic-Republican) 81.1% ▌James Brown (D-R Quid) 18.8% |
| Maryland 8 | Charles Goldsborough | Federalist | 1804 | Incumbent re-elected. | ▌Y Charles Goldsborough (Federalist) 68.8% ▌Philip Quinton (D-R Quid) 31.1% |

## Massachusetts

Massachusetts elected its members November 3, 1806.
| District | Incumbent | Incumbent | Incumbent | This race | This race |
| District | Member | Party | First elected | Results | Candidates |
| Massachusetts 1 "Suffolk district" | Josiah Quincy | Federalist | 1804 | Incumbent re-elected. | ▌Y Josiah Quincy (Federalist) 57.7% ▌James Prince (Democratic-Republican) 42.2% |
| Massachusetts 2 "Essex South district" | Jacob Crowninshield | Democratic- Republican | 1803 | Incumbent re-elected. | ▌Y Jacob Crowninshield (Democratic-Republican) 54.8% ▌Samuel Putnam (Federalist) 45.0% |
| Massachusetts 3 "Essex North district" | Jeremiah Nelson | Federalist | 1804 | Incumbent retired. Federalist hold. | ▌Y Edward St. Loe Livermore (Federalist) 67.6% ▌Thomas Kitteridge (Democratic-Republican) 32.4% |
| Massachusetts 4 "Middlesex district" | Joseph Bradley Varnum | Democratic- Republican | 1794 | Incumbent re-elected. | ▌Y Joseph Bradley Varnum (Democratic-Republican) 74.0% ▌Ebenezer Bridgely (Federalist) 25.1% |
| Massachusetts 5 "Hampshire South district" | William Ely | Federalist | 1804 | Incumbent re-elected. | ▌Y William Ely (Federalist) 57.1% ▌Samuel Fowler (Democratic-Republican) 38.5% ▌William Eaton (Federalist) 4.4% |
| Massachusetts 6 "Hampshire North district" | Samuel Taggart | Federalist | 1803 | Incumbent re-elected. | ▌Y Samuel Taggart (Federalist) 64.4% ▌Solomon Snead (Democratic-Republican) 35.6% |
| Massachusetts 7 "Plymouth district" | Joseph Barker | Democratic- Republican | 1804 | Incumbent re-elected. | ▌Y Joseph Barker (Democratic-Republican) 60.8% ▌Nahum Mitchell (Federalist) 38.4% |
| Massachusetts 8 "Barnstable district" | Isaiah L. Green | Democratic- Republican | 1804 | Incumbent re-elected. | ▌Y Isaiah L. Green (Democratic-Republican) 63.4% ▌Wendall Davis (Federalist) 34.6% Others 2.0% |
| Massachusetts 9 "Bristol district" | Phanuel Bishop | Democratic- Republican | 1798 | Incumbent retired. Democratic-Republican hold. | ▌Y Josiah Dean (Democratic-Republican) 55.1% ▌Nicholas Tillinghast (Federalist) 43.1% ▌Nathaniel Morton (Unknown) 1.6% |
| Massachusetts 10 "Worcester South district" | Seth Hastings | Federalist | 1800 (special) | Incumbent retired. Federalist hold. | ▌Y Jabez Upham (Federalist) 53.9% ▌Edward Bangs (Democratic-Republican) 45.4% |
| Massachusetts 11 "Worcester North district" | William Stedman | Federalist | 1803 | Incumbent re-elected. | ▌Y William Stedman (Federalist) 63.6% ▌John Whiting (Democratic-Republican) 36.0% |
| Massachusetts 12 "Berkshire district" | Barnabas Bidwell | Democratic- Republican | 1804 | Incumbent re-elected. | ▌Y Barnabas Bidwell (Democratic-Republican) 59.9% ▌Daniel Dewey (Federalist) 40.1% |
| Massachusetts 13 "Norfolk district" | Ebenezer Seaver | Democratic- Republican | 1803 | Incumbent re-elected. | ▌Y Ebenezer Seaver (Democratic-Republican) 65.3% ▌Edward H. Robbins (Federalist) 34.7% |
| Massachusetts 14 "York district" District of Maine | Richard Cutts | Democratic- Republican | 1801 | Incumbent re-elected. | ▌Y Richard Cutts (Democratic-Republican) 55.9% ▌Joseph Leland (Federalist) 25.8% ▌Joseph Bartlett (Democratic-Republican) 18.4% |
| Massachusetts 15 "Cumberland district" District of Maine | Peleg Wadsworth | Federalist | 1792 | Incumbent retired. Democratic-Republican gain. | ▌Y Daniel Ilsley (Democratic-Republican) 52.5% ▌Ezekiel Whitman (Federalist) 47.5% |
| Massachusetts 16 "Lincoln district" District of Maine | Orchard Cook | Democratic- Republican | 1804 | Incumbent re-elected. | ▌Y Orchard Cook (Democratic-Republican) 55.9% ▌Mark L. Hill (Federalist) 44.1% |
| Massachusetts 17 "Kennebec district" District of Maine | John Chandler | Democratic- Republican | 1804 | Incumbent re-elected. | ▌Y John Chandler (Democratic-Republican) 76.5% ▌John Crosby (Unknown) 20.6% ▌Benjamin Whitwell (Federalist) 2.9% |

## Mississippi Territory

See Non-voting delegates, below.

## New Hampshire

New Hampshire elected its members August 25, 1806.
| District | Incumbent | Incumbent | Incumbent | This race | This race |
| District | Member | Party | First elected | Results | Candidates |
| New Hampshire at-large 5 seats on a general ticket | Silas Betton | Federalist | 1802 | Incumbent lost re-election. Democratic-Republican gain. | ▌Y Jedediah K. Smith (Democratic-Republican) 12.2% ▌Y Clement Storer (Democratic-Republican) 12.1% ▌Y Peter Carleton (Democratic-Republican) 12.1% ▌Y Francis Gardner (Democratic-Republican) 12.0% ▌Y Daniel M. Durell (Democratic-Republican) 10.9% ▌Samuel Tenney (Federalist) 7.8% ▌Caleb Ellis (Federalist) 7.7% ▌David Hough (Federalist) 7.6% ▌Thomas W. Thompson (Federalist) 6.0% ▌Silas Betton (Federalist) 6.0% ▌John Wheeler (Federalist) 2.0% ▌Timothy Farrar (Federalist) 1.7% Others 2.0% |
| New Hampshire at-large 5 seats on a general ticket | Thomas W. Thompson | Federalist | 1804 | Incumbent lost re-election. Democratic-Republican gain. | ▌Y Jedediah K. Smith (Democratic-Republican) 12.2% ▌Y Clement Storer (Democratic-Republican) 12.1% ▌Y Peter Carleton (Democratic-Republican) 12.1% ▌Y Francis Gardner (Democratic-Republican) 12.0% ▌Y Daniel M. Durell (Democratic-Republican) 10.9% ▌Samuel Tenney (Federalist) 7.8% ▌Caleb Ellis (Federalist) 7.7% ▌David Hough (Federalist) 7.6% ▌Thomas W. Thompson (Federalist) 6.0% ▌Silas Betton (Federalist) 6.0% ▌John Wheeler (Federalist) 2.0% ▌Timothy Farrar (Federalist) 1.7% Others 2.0% |
| New Hampshire at-large 5 seats on a general ticket | Samuel Tenney | Federalist | 1800 | Incumbent lost re-election. Democratic-Republican gain. | ▌Y Jedediah K. Smith (Democratic-Republican) 12.2% ▌Y Clement Storer (Democratic-Republican) 12.1% ▌Y Peter Carleton (Democratic-Republican) 12.1% ▌Y Francis Gardner (Democratic-Republican) 12.0% ▌Y Daniel M. Durell (Democratic-Republican) 10.9% ▌Samuel Tenney (Federalist) 7.8% ▌Caleb Ellis (Federalist) 7.7% ▌David Hough (Federalist) 7.6% ▌Thomas W. Thompson (Federalist) 6.0% ▌Silas Betton (Federalist) 6.0% ▌John Wheeler (Federalist) 2.0% ▌Timothy Farrar (Federalist) 1.7% Others 2.0% |
| New Hampshire at-large 5 seats on a general ticket | David Hough | Federalist | 1802 | Incumbent lost re-election. Democratic-Republican gain. | ▌Y Jedediah K. Smith (Democratic-Republican) 12.2% ▌Y Clement Storer (Democratic-Republican) 12.1% ▌Y Peter Carleton (Democratic-Republican) 12.1% ▌Y Francis Gardner (Democratic-Republican) 12.0% ▌Y Daniel M. Durell (Democratic-Republican) 10.9% ▌Samuel Tenney (Federalist) 7.8% ▌Caleb Ellis (Federalist) 7.7% ▌David Hough (Federalist) 7.6% ▌Thomas W. Thompson (Federalist) 6.0% ▌Silas Betton (Federalist) 6.0% ▌John Wheeler (Federalist) 2.0% ▌Timothy Farrar (Federalist) 1.7% Others 2.0% |
| New Hampshire at-large 5 seats on a general ticket | Caleb Ellis | Federalist | 1804 | Incumbent lost re-election. Democratic-Republican gain. | ▌Y Jedediah K. Smith (Democratic-Republican) 12.2% ▌Y Clement Storer (Democratic-Republican) 12.1% ▌Y Peter Carleton (Democratic-Republican) 12.1% ▌Y Francis Gardner (Democratic-Republican) 12.0% ▌Y Daniel M. Durell (Democratic-Republican) 10.9% ▌Samuel Tenney (Federalist) 7.8% ▌Caleb Ellis (Federalist) 7.7% ▌David Hough (Federalist) 7.6% ▌Thomas W. Thompson (Federalist) 6.0% ▌Silas Betton (Federalist) 6.0% ▌John Wheeler (Federalist) 2.0% ▌Timothy Farrar (Federalist) 1.7% Others 2.0% |

## New Jersey

New Jersey elected its members October 14–15, 1806. The Federalists ran a mixed ticket consisting of 2 Federalists (Aaron Ogden and John Beatty) and 4 Democratic-Republicans (William Helms, Ebenezer Elmer, George Maxwell, and Adam Boyd), one of whom (William Helms) was also on the Democratic-Republican ticket. The Federalists capitalized on resentment over the replacement on the official Democratic-Republican ticket of Ebenezer Elmer, from South Jersey, with Thomas Newbold from Monmouth County and the retention of James Sloan. This ticket was formed too late to gain sufficient support, but the Federalists did do much better in state elections that year than they had in previous elections.
| District | Incumbent | Incumbent | Incumbent | This race | This race |
| District | Member | Party | First elected | Results | Candidates |
| New Jersey at-large 6 seats on a general ticket | William Helms | Democratic-Republican | 1800 | Incumbent re-elected. | ▌Y William Helms (Democratic-Republican) 14.9% ▌Y Thomas Newbold (Democratic-Republican) 12.4% ▌Y Henry Southard (Democratic-Republican) 12.4% ▌Y Ezra Darby (Democratic-Republican) 11.9% ▌Y John Lambert (Democratic-Republican) 11.8% ▌Y James Sloan (Democratic-Republican) 11.2% ▌Aaron Ogden (Federalist) 5.9% ▌Ebenezer Elmer (Federalist) 5.8% ▌John Beatty (Federalist) 5.3% ▌George C. Maxwell (Democratic-Republican) 3.8% ▌Adam Boyd (Democratic-Republican) 3.4% |
| New Jersey at-large 6 seats on a general ticket | Ebenezer Elmer | Democratic-Republican | 1800 | Incumbent lost re-election. Democratic-Republican hold. | ▌Y William Helms (Democratic-Republican) 14.9% ▌Y Thomas Newbold (Democratic-Republican) 12.4% ▌Y Henry Southard (Democratic-Republican) 12.4% ▌Y Ezra Darby (Democratic-Republican) 11.9% ▌Y John Lambert (Democratic-Republican) 11.8% ▌Y James Sloan (Democratic-Republican) 11.2% ▌Aaron Ogden (Federalist) 5.9% ▌Ebenezer Elmer (Federalist) 5.8% ▌John Beatty (Federalist) 5.3% ▌George C. Maxwell (Democratic-Republican) 3.8% ▌Adam Boyd (Democratic-Republican) 3.4% |
| New Jersey at-large 6 seats on a general ticket | Henry Southard | Democratic-Republican | 1800 | Incumbent re-elected. | ▌Y William Helms (Democratic-Republican) 14.9% ▌Y Thomas Newbold (Democratic-Republican) 12.4% ▌Y Henry Southard (Democratic-Republican) 12.4% ▌Y Ezra Darby (Democratic-Republican) 11.9% ▌Y John Lambert (Democratic-Republican) 11.8% ▌Y James Sloan (Democratic-Republican) 11.2% ▌Aaron Ogden (Federalist) 5.9% ▌Ebenezer Elmer (Federalist) 5.8% ▌John Beatty (Federalist) 5.3% ▌George C. Maxwell (Democratic-Republican) 3.8% ▌Adam Boyd (Democratic-Republican) 3.4% |
| New Jersey at-large 6 seats on a general ticket | Ezra Darby | Democratic-Republican | 1804 | Incumbent re-elected. | ▌Y William Helms (Democratic-Republican) 14.9% ▌Y Thomas Newbold (Democratic-Republican) 12.4% ▌Y Henry Southard (Democratic-Republican) 12.4% ▌Y Ezra Darby (Democratic-Republican) 11.9% ▌Y John Lambert (Democratic-Republican) 11.8% ▌Y James Sloan (Democratic-Republican) 11.2% ▌Aaron Ogden (Federalist) 5.9% ▌Ebenezer Elmer (Federalist) 5.8% ▌John Beatty (Federalist) 5.3% ▌George C. Maxwell (Democratic-Republican) 3.8% ▌Adam Boyd (Democratic-Republican) 3.4% |
| New Jersey at-large 6 seats on a general ticket | John Lambert | Democratic-Republican | 1804 | Incumbent re-elected. | ▌Y William Helms (Democratic-Republican) 14.9% ▌Y Thomas Newbold (Democratic-Republican) 12.4% ▌Y Henry Southard (Democratic-Republican) 12.4% ▌Y Ezra Darby (Democratic-Republican) 11.9% ▌Y John Lambert (Democratic-Republican) 11.8% ▌Y James Sloan (Democratic-Republican) 11.2% ▌Aaron Ogden (Federalist) 5.9% ▌Ebenezer Elmer (Federalist) 5.8% ▌John Beatty (Federalist) 5.3% ▌George C. Maxwell (Democratic-Republican) 3.8% ▌Adam Boyd (Democratic-Republican) 3.4% |
| New Jersey at-large 6 seats on a general ticket | James Sloan | Democratic-Republican | 1803 | Incumbent re-elected. | ▌Y William Helms (Democratic-Republican) 14.9% ▌Y Thomas Newbold (Democratic-Republican) 12.4% ▌Y Henry Southard (Democratic-Republican) 12.4% ▌Y Ezra Darby (Democratic-Republican) 11.9% ▌Y John Lambert (Democratic-Republican) 11.8% ▌Y James Sloan (Democratic-Republican) 11.2% ▌Aaron Ogden (Federalist) 5.9% ▌Ebenezer Elmer (Federalist) 5.8% ▌John Beatty (Federalist) 5.3% ▌George C. Maxwell (Democratic-Republican) 3.8% ▌Adam Boyd (Democratic-Republican) 3.4% |

## New York

New York elected representatives to the 10th Congress on April 29 – May 1, 1806. This was the second and last election in which Districts 2 and 3 were elected on a joint ticket. New York redistricted in the next election.
| District | Incumbent | Incumbent | Incumbent | This race | This race |
| District | Member | Party | First elected | Results | Candidates |
| New York 1 | Eliphalet Wickes | Democratic-Republican | 1804 | Incumbent retired. Democratic-Republican hold. | ▌Y Samuel Riker (Democratic-Republican) 99.1% |
| New York 2/ New York 3 Joint ticket | Gurdon S. Mumford | Democratic-Republican | 1804 (special) | Incumbent re-elected. | ▌Y Gurdon S. Mumford (Democratic-Republican) 27.8% ▌Y George Clinton Jr. (Democratic-Republican) 26.5% ▌John B. Coles (Federalist) 22.3% ▌Nicholas Fish (Federalist) 22.3% ▌John R. Livingston (Democratic-Republican) 1.0% |
| New York 2/ New York 3 Joint ticket | George Clinton Jr. | Democratic-Republican | 1805 (special) | Incumbent re-elected. | ▌Y Gurdon S. Mumford (Democratic-Republican) 27.8% ▌Y George Clinton Jr. (Democratic-Republican) 26.5% ▌John B. Coles (Federalist) 22.3% ▌Nicholas Fish (Federalist) 22.3% ▌John R. Livingston (Democratic-Republican) 1.0% |
| New York 4 | Philip Van Cortlandt | Democratic-Republican | 1793 | Incumbent re-elected. | ▌Y Philip Van Cortlandt (Democratic-Republican) 46.5% ▌Peter A. Jay (Federalist) 41.0 % ▌Peter Taulman (Democratic-Republican) 6.5% ▌Samuel S. Smith (D-R Quid) 6.1% |
| New York 5 | John Blake Jr. | Democratic-Republican | 1804 | Incumbent re-elected. | ▌Y John Blake Jr. (Democratic-Republican) 62.9% ▌Reuben Hopkins (Federalist) 37.1% |
| New York 6 | Daniel C. Verplanck | Democratic-Republican | 1803 (special) | Incumbent re-elected. | ▌Y Daniel C. Verplanck (Democratic-Republican) 98.5% |
| New York 7 | Martin G. Schuneman | Democratic-Republican | 1804 | Incumbent retired. Federalist gain. | ▌Y Barent Gardenier (Federalist) 47.8% ▌William A. Thompson (Quid) 34.7% ▌Johannes Bruyn (Democratic-Republican) 17.5% |
| New York 8 | Henry W. Livingston | Federalist | 1802 | Incumbent retired. Democratic-Republican gain. | ▌Y James I. Van Alen (Democratic-Republican) 50.1% ▌Robert Le Roy Livingston (Federalist) 49.9% |
| New York 9 | Killian Van Rensselaer | Federalist | 1800 | Incumbent re-elected. | ▌Y Killian Van Rensselaer (Federalist) 46.6% ▌Benjamin DeWitt (Democratic-Republican) 32.7% ▌Henry Glen (D-R Quid) 20.6% |
| New York 10 | Josiah Masters | Democratic-Republican | 1804 | Incumbent re-elected. | ▌Y Josiah Masters (Democratic-Republican) 51.1% ▌Hosea Moffet (Federalist) 48.6% |
| New York 11 | Peter Sailly | Democratic-Republican | 1804 | Incumbent lost re-election. Democratic-Republican hold. | ▌Y John Thompson (Democratic-Republican) 57.8% ▌Asahel Porter (Federalist) 39.6% ▌Peter Sailly (Democratic-Republican) 2.6% |
| New York 12 | David Thomas | Democratic-Republican | 1800 | Incumbent re-elected. | ▌Y David Thomas (Democratic-Republican) 92.4% Others 8.6% |
| New York 13 | Thomas Sammons | Democratic-Republican | 1802 | Incumbent retired. Democratic-Republican hold. | ▌Y Peter Swart (Democratic-Republican) 69.4% ▌Isaac H. Tiffany (Federalist) 30.6% |
| New York 14 | John Russell | Democratic-Republican | 1804 | Incumbent re-elected. | ▌Y John Russell (Democratic-Republican) 67.3% ▌Solomon Martin (Federalist) 33.7% |
| New York 15 | Nathan Williams | Democratic-Republican | 1804 | Incumbent retired. D-R Quid gain. | ▌Y William Kirkpatrick (D-R Quid) 55.3% ▌John Nicholson (Democratic-Republican) 44.7% |
| New York 16 | Uri Tracy | Democratic-Republican | 1804 | Incumbent lost re-election. Democratic-Republican hold. | ▌Y Reuben Humphrey (Democratic-Republican) 86.1% ▌Thaddeus M. Wood (Federalist) 8.1% ▌John Cantine (Democratic-Republican) 3.1% ▌Uri Tracy (Democratic-Republican) 2.6% |
| New York 17 | Silas Halsey | Democratic-Republican | 1804 | Incumbent lost re-election. Democratic-Republican hold. | ▌Y John Harris (Democratic-Republican) 35.1% ▌Daniel W. Lewis (Federalist) 33.6% ▌Silas Halsey (D-R Quid) 30.0% ▌James Faulkner (Democratic-Republican) 1.8% |

## North Carolina

North Carolina elected its members August 15, 1806.
| District | Incumbent | Incumbent | Incumbent | This race | This race |
| District | Member | Party | First elected | Results | Candidates |
| North Carolina 1 | Thomas Wynns | Democratic-Republican | 1802 (special) | Incumbent retired. Democratic-Republican hold. | ▌Y Lemuel Sawyer (Democratic-Republican) 64.0% ▌William H. Murfree (Democratic-Republican) 36.0% |
| North Carolina 2 | Willis Alston | Democratic-Republican | 1798 | Incumbent re-elected. | ▌Y Willis Alston (Democratic-Republican) 100% |
| North Carolina 3 | Thomas Blount | Democratic-Republican | 1793 1804 | Incumbent re-elected. | ▌Y Thomas Blount (Democratic-Republican) 50.1% ▌William Kennedy (Democratic-Republican) 49.9% |
| North Carolina 4 | William Blackledge | Democratic-Republican | 1803 | Incumbent re-elected. | ▌Y William Blackledge (Democratic-Republican) 100% |
| North Carolina 5 | Thomas Kenan | Democratic-Republican | 1805 (special) | Incumbent re-elected. | ▌Y Thomas Kenan (Democratic-Republican) ▌Benjamin Smith (Democratic-Republican) ▌Samuel Jacelyn (Unknown) ▌Alexander D. Moore (Unknown) |
| North Carolina 6 | Nathaniel Macon | Democratic-Republican | 1791 | Incumbent re-elected. | ▌Y Nathaniel Macon (Democratic-Republican) 99.8% |
| North Carolina 7 | Duncan McFarlan | Democratic-Republican | 1804 | Incumbent lost re-election. Federalist gain. Election was later contested. | ▌Y John Culpepper (Federalist) 48.1% ▌Duncan McFarlan (Democratic-Republican) 47.2% ▌John Hay (Federalist) 3.7% ▌James Sanders (Democratic-Republican) 1.0% |
| North Carolina 8 | Richard Stanford | Democratic-Republican | 1796 | Incumbent re-elected. | ▌Y Richard Stanford (Democratic-Republican) 94.3% ▌Calvin Jones (Unknown) 2.6% |
| North Carolina 9 | Marmaduke Williams | Democratic-Republican | 1803 | Incumbent re-elected. | ▌Y Marmaduke Williams (Democratic-Republican) 57.9% ▌Theophilus Lacy (Democratic-Republican) 42.1% |
| North Carolina 10 | Evan S. Alexander | Democratic-Republican | 1806 (special) | Incumbent re-elected. | ▌Y Evan S. Alexander ▌Matthew Brandon (Unknown) |
| North Carolina 11 | James Holland | Democratic-Republican | 1800 | Incumbent re-elected. | ▌Y James Holland (Democratic-Republican) 96.1% ▌Joseph Graham (Unknown) 3.7% |
| North Carolina 12 | Joseph Winston | Democratic-Republican | 1803 | Incumbent retired. Democratic-Republican hold. | ▌Y Meshack Franklin (Democratic-Republican) 63.1% ▌William Lenoir (Democratic-Republican) 32.5% ▌Peter Eaton (Democratic-Republican) 4.4% |

## Ohio

Ohio elected its member October 14, 1806. Both candidates were Democratic-Republicans, but from election articles published in The Scioto Gazette it was suggested that James Pritchard was the candidate of the Ohio Quids and that in a few counties, notably Columbiana and Jefferson, he was also supported by the Federalists.
| District | Incumbent | Incumbent | Incumbent | This race | This race |
| District | Member | Party | First elected | Results | Candidates |
| Ohio at-large | Jeremiah Morrow | Democratic- Republican | 1803 | Incumbent re-elected. | ▌Y Jeremiah Morrow (Democratic-Republican) 73.9% ▌James Pritchard (D-R Quid) 26.0% |

## Orleans Territory

See Non-voting delegates, below.

## Pennsylvania

Pennsylvania elected its members October 14, 1806.
| District | Incumbent | Incumbent | Incumbent | This race | This race |
| District | Member | Party | First elected | Results | Candidates |
| Pennsylvania 1 Plural district with 3 seats | Michael Leib | Democratic-Republican | 1798 | Incumbent resigned February 14, 1806. Democratic-Republican hold. Winner also elected to finish the current term; see above. | ▌Y John Porter (Democratic-Republican) 21.1% ▌Y Jacob Richards (Democratic-Republican) 20.7% ▌Y Joseph Clay (Democratic-Republican) 20.4% ▌William Graham (Federalist) 18.3% ▌Joseph Hemphill (Federalist) 12.7% ▌John Sergeant (Federalist) 6.8% |
| Pennsylvania 1 Plural district with 3 seats | Jacob Richards | Democratic-Republican | 1802 | Incumbent re-elected. | ▌Y John Porter (Democratic-Republican) 21.1% ▌Y Jacob Richards (Democratic-Republican) 20.7% ▌Y Joseph Clay (Democratic-Republican) 20.4% ▌William Graham (Federalist) 18.3% ▌Joseph Hemphill (Federalist) 12.7% ▌John Sergeant (Federalist) 6.8% |
| Pennsylvania 1 Plural district with 3 seats | Joseph Clay | Democratic-Republican | 1802 | Incumbent re-elected. | ▌Y John Porter (Democratic-Republican) 21.1% ▌Y Jacob Richards (Democratic-Republican) 20.7% ▌Y Joseph Clay (Democratic-Republican) 20.4% ▌William Graham (Federalist) 18.3% ▌Joseph Hemphill (Federalist) 12.7% ▌John Sergeant (Federalist) 6.8% |
| Pennsylvania 2 Plural district with 3 seats | Robert Brown | Democratic-Republican | 1798 (special) | Incumbent re-elected. | ▌Y Robert Brown (Democratic-Republican) 18.0% ▌Y William Milnor (Federalist Quid) 16.8% ▌Y John Pugh (Democratic-Republican) 16.6% ▌John Hahn (Democratic-Republican) 16.5% ▌Frederick Conrad (D-R Quid) 16.2% ▌William Latimore (D-R Quid) 16.0% |
| Pennsylvania 2 Plural district with 3 seats | Frederick Conrad | Democratic-Republican | 1802 | Incumbent lost re-election. Federalist Quid gain. | ▌Y Robert Brown (Democratic-Republican) 18.0% ▌Y William Milnor (Federalist Quid) 16.8% ▌Y John Pugh (Democratic-Republican) 16.6% ▌John Hahn (Democratic-Republican) 16.5% ▌Frederick Conrad (D-R Quid) 16.2% ▌William Latimore (D-R Quid) 16.0% |
| Pennsylvania 2 Plural district with 3 seats | John Pugh | Democratic-Republican | 1804 | Incumbent re-elected. | ▌Y Robert Brown (Democratic-Republican) 18.0% ▌Y William Milnor (Federalist Quid) 16.8% ▌Y John Pugh (Democratic-Republican) 16.6% ▌John Hahn (Democratic-Republican) 16.5% ▌Frederick Conrad (D-R Quid) 16.2% ▌William Latimore (D-R Quid) 16.0% |
| Pennsylvania 3 Plural district with 3 seats | Isaac Anderson | Democratic-Republican | 1802 | Incumbent retired. Federalist Quid gain. | ▌Y John Hiester (D-R Quid) 18.3% ▌Y Matthias Richards (D-R Quid) 18.1% ▌Y Robert Jenkins (Federalist Quid) 17.7% ▌John Whitehill (Democratic-Republican) 15.5% ▌Roger Davis (Democratic-Republican) 15.2% ▌William Witman (Democratic-Republican) 15.1% |
| Pennsylvania 3 Plural district with 3 seats | Christian Lower | Democratic-Republican | 1804 | Incumbent retired. D-R Quid gain. | ▌Y John Hiester (D-R Quid) 18.3% ▌Y Matthias Richards (D-R Quid) 18.1% ▌Y Robert Jenkins (Federalist Quid) 17.7% ▌John Whitehill (Democratic-Republican) 15.5% ▌Roger Davis (Democratic-Republican) 15.2% ▌William Witman (Democratic-Republican) 15.1% |
| Pennsylvania 3 Plural district with 3 seats | John Whitehill | Democratic-Republican | 1802 | Incumbent lost re-election. D-R Quid gain. | ▌Y John Hiester (D-R Quid) 18.3% ▌Y Matthias Richards (D-R Quid) 18.1% ▌Y Robert Jenkins (Federalist Quid) 17.7% ▌John Whitehill (Democratic-Republican) 15.5% ▌Roger Davis (Democratic-Republican) 15.2% ▌William Witman (Democratic-Republican) 15.1% |
| Pennsylvania 4 Plural district with 2 seats | Robert Whitehill | Democratic-Republican | 1805 (special) | Incumbent re-elected. | ▌Y Robert Whitehill (Democratic-Republican) 47.7% ▌Y David Bard (D-R Quid) 42.7% ▌Evers Doty (Democratic-Republican) 7.8% ▌Oliver Pollock (Unknown) 1.8% |
| Pennsylvania 4 Plural district with 2 seats | David Bard | Democratic-Republican | 1802 | Incumbent re-elected as a D-R Quid. D-R Quid gain. | ▌Y Robert Whitehill (Democratic-Republican) 47.7% ▌Y David Bard (D-R Quid) 42.7% ▌Evers Doty (Democratic-Republican) 7.8% ▌Oliver Pollock (Unknown) 1.8% |
| Pennsylvania 5 | Andrew Gregg | Democratic-Republican | 1791 | Incumbent lost re-election as a D-R Quid. Democratic-Republican hold. | ▌Y Daniel Montgomery Jr. (Democratic-Republican) 57.7% ▌Andrew Gregg 42.3% (D-R Quid) |
| Pennsylvania 6 | James Kelly | Federalist | 1804 | Incumbent re-elected as a Federalist Quid. | ▌Y James Kelly (Federalist Quid) 100% |
| Pennsylvania 7 | John Rea | Democratic-Republican | 1802 | Incumbent re-elected. | ▌Y John Rea (Democratic-Republican) 52.7% ▌Andrew Dunlap (Federalist) 29.7% ▌Henry Woods (D-R Quid) 17.6% |
| Pennsylvania 8 | William Findley | Democratic-Republican | 1802 | Incumbent re-elected. | ▌Y William Findley (Democratic-Republican) 100% |
| Pennsylvania 9 | John Smilie | Democratic-Republican | 1792 1798 | Incumbent re-elected. | ▌Y John Smilie (Democratic-Republican) 100% |
| Pennsylvania 10 | John Hamilton | Democratic-Republican | 1804 | Incumbent lost re-election as a Federalist Quid. Democratic-Republican hold. | ▌Y William Hoge (Democratic-Republican) 62.0% ▌John Hamilton (Federalist Quid) 38.0% |
| Pennsylvania 11 | Samuel Smith | Democratic-Republican | 1805 (special) | Incumbent re-elected. | ▌Y Samuel Smith (Democratic-Republican) 55.9% ▌John Wilkins (Federalist Quid) 44.1% |

## Rhode Island

Rhode Island elected its members August 26, 1806. Rhode Island law required a majority of votes to win. In this election, only one candidate won a majority on the first ballot, and so a run-off election was required to choose the second seat.
| District | Incumbent | Incumbent | Incumbent | This race | This race |
| District | Member | Party | First elected | Results | Candidates |
| Rhode Island at-large 2 seats on a general ticket | Nehemiah Knight | Democratic- Republican | 1802 | Incumbent re-elected. | First ballot: ▌Y Nehemiah Knight (Democratic-Republican) 26.9% ▌Isaac Wilbour (Democratic-Republican) 24.4% ▌William Hunter (Federalist) 22.2% ▌Thomas Arnold (Federalist) 21.8% ▌Thomas B. Hazard (D-R Quid) 4.7% Second ballot: ▌Y Isaac Wilbour (Democratic-Republican) 58.2% ▌William Hunter (Federalist) 41.3% |
| Rhode Island at-large 2 seats on a general ticket | Joseph Stanton Jr. | Democratic- Republican | 1800 | Incumbent retired. Democratic-Republican hold. | First ballot: ▌Y Nehemiah Knight (Democratic-Republican) 26.9% ▌Isaac Wilbour (Democratic-Republican) 24.4% ▌William Hunter (Federalist) 22.2% ▌Thomas Arnold (Federalist) 21.8% ▌Thomas B. Hazard (D-R Quid) 4.7% Second ballot: ▌Y Isaac Wilbour (Democratic-Republican) 58.2% ▌William Hunter (Federalist) 41.3% |

## South Carolina

South Carolina elected its members October 13–14, 1806.
| District | Incumbent | Incumbent | Incumbent | This race | This race |
| District | Member | Party | First elected | Results | Candidates |
| South Carolina 1 "Charleston district" | Robert Marion | Democratic- Republican | 1804 | Incumbent re-elected. | ▌Y Robert Marion (Democratic-Republican) 55.6% ▌William L. Smith (Federalist) 43.6% |
| South Carolina 2 "Beaufort and Edgefield district" | William Butler Sr. | Democratic- Republican | 1800 | Incumbent re-elected. | ▌Y William Butler Sr. (Democratic-Republican) 73.6% ▌Richard B. Screven (Federalist) 26.2% |
| South Carolina 3 "Georgetown district" | David R. Williams | Democratic- Republican | 1804 | Incumbent re-elected. | ▌Y David R. Williams (Democratic-Republican) 97.9% |
| South Carolina 4 "Orangeburgh district" | O'Brien Smith | Democratic- Republican | 1804 | Incumbent retired. Democratic-Republican hold. | ▌Y John Taylor (Democratic-Republican) 55.3% ▌Henry Dana Ward (Federalist) 30.0% ▌Miles B. Pinkney (Democratic-Republican) 14.3% |
| South Carolina 5 "Sumter district" | Richard Winn | Democratic- Republican | 1802 (special) | Incumbent re-elected. | ▌Y Richard Winn (Democratic-Republican) 73.0% ▌Anthony Butler (Federalist) 27.0% |
| South Carolina 6 "Abbeville district" | Levi Casey | Democratic- Republican | 1803 | Incumbent re-elected but died February 3, 1807, leading to a special election; see above. | ▌Y Levi Casey (Democratic-Republican) 50.1% ▌John A. Elmer (Federalist) 25.2% ▌Joseph Calhoun (Democratic-Republican) 24.7% |
| South Carolina 7 "Chester district" | Thomas Moore | Democratic- Republican | 1800 | Incumbent re-elected. | ▌Y Thomas Moore (Democratic-Republican) Uncontested |
| South Carolina 8 "Pendleton district" | Elias Earle | Democratic- Republican | 1805 (special) | Incumbent lost re-election. Democratic-Republican hold. | ▌Y Lemuel J. Alston (Democratic-Republican) 39.7% ▌William Hunter (Democratic-Republican) 30.3% ▌Elias Earle (Democratic-Republican) 30.0% |

## Tennessee

Tennessee elected its members August 3–4, 1807, after the Congress began but before the first session met.
| District | Incumbent | Incumbent | Incumbent | This race | This race |
| District | Member | Party | First elected | Results | Candidates |
| Tennessee 1 "Washington district" | John Rhea | Democratic- Republican | 1803 | Incumbent re-elected. | ▌Y John Rhea (Democratic-Republican) Uncontested |
| Tennessee 2 "Hamilton district" | George W. Campbell | Democratic- Republican | 1803 | Incumbent re-elected. | ▌Y George W. Campbell (Democratic-Republican) 69.3% ▌Pleasant M. Miller (Democratic-Republican) 30.7% |
| Tennessee 3 "Mero district" | William Dickson | Democratic- Republican | 1801 | Incumbent retired. Democratic-Republican hold. | ▌Y Jesse Wharton (Democratic-Republican) 62.5% ▌James Lyon (Democratic-Republican) 31.2% ▌Spencer Clack (Unknown) 3.5% ▌Moses Fisk (Unknown) 2.8% |

## Vermont

Vermont elected its members September 2, 1806.
| District | Incumbent | Incumbent | Incumbent | This race | This race |
| District | Member | Party | First elected | Results | Candidates |
| Vermont 1 "Southwestern district" | Gideon Olin | Democratic- Republican | 1802 | Incumbent retired. Democratic-Republican hold. | ▌Y James Witherell (Democratic-Republican) 54.1% ▌Jonas Galusha (Federalist) 29.4% Others 16.5% |
| Vermont 2 "Southeastern district" | James Elliot | Federalist | 1802 | Incumbent re-elected. | ▌Y James Elliot (Federalist) 57.9% ▌William Hunter (Democratic-Republican) 32.2% Others 9.9% |
| Vermont 3 "Northeastern district" | James Fisk | Democratic- Republican | 1805 | Incumbent re-elected. | ▌Y James Fisk (Democratic-Republican) 61.0% ▌William Chamberlain (Federalist) 37.1% Others 1.9% |
| Vermont 4 "Northwestern district" | Martin Chittenden | Federalist | 1802 | Incumbent re-elected. | ▌Y Martin Chittenden (Federalist) 52.6% ▌Ezra Butler (Democratic-Republican) 43.3% Others 4.2% |

## Virginia

Virginia elected its members in April 1807, after the Congress began but before the first session met.
| District | Incumbent | Incumbent | Incumbent | This race | This race |
| District | Member | Party | First elected | Results | Candidates |
| Virginia 1 | John G. Jackson | Democratic-Republican | 1803 | Incumbent re-elected. | ▌Y John G. Jackson (Democratic-Republican) 58.9% ▌Noah Linsley (Federalist) 41.1% |
| Virginia 2 | John Morrow | Democratic-Republican | 1805 | Incumbent re-elected. | ▌Y John Morrow (Democratic-Republican) 100% |
| Virginia 3 | John Smith | Democratic-Republican | 1801 | Incumbent re-elected. | ▌Y John Smith (Democratic-Republican) ▌James Singleton (Unknown) |
| Virginia 4 | David Holmes | Democratic-Republican | 1797 | Incumbent re-elected. | ▌Y David Holmes (Democratic-Republican) 100% |
| Virginia 5 | Alexander Wilson | Democratic-Republican | 1804 (special) | Incumbent re-elected. | ▌Y Alexander Wilson (Democratic-Republican) 57.0% ▌Oliver Towles (Democratic-Republican) 23.4% ▌Robert Bailey (D-R Quid) 19.3% |
| Virginia 6 | Abram Trigg | Democratic-Republican | 1797 | Incumbent re-elected. | ▌Y Abram Trigg (Democratic-Republican) ▌Daniel Sheffey (D-R Quid) |
| Virginia 7 | Joseph Lewis Jr. | Federalist | 1803 | Incumbent re-elected. | ▌Y Joseph Lewis Jr. (Federalist) 55.2% ▌John Littlejohn (Democratic-Republican) 44.8% |
| Virginia 8 | Walter Jones | Democratic-Republican | 1803 | Incumbent re-elected. | ▌Y Walter Jones (Democratic-Republican) 86.7% ▌Richard Barnes (Federalist) 13.3% |
| Virginia 9 | Philip R. Thompson | Democratic-Republican | 1793 | Incumbent lost re-election. Democratic-Republican hold. | ▌Y John Love (Democratic-Republican) 60.5% ▌Philip R. Thompson (Democratic-Republican) 39.5% |
| Virginia 10 | John Dawson | Democratic-Republican | 1797 | Incumbent re-elected. | ▌Y John Dawson (Democratic-Republican) 60.0% ▌John Mercer (Democratic-Republican) 40.0% |
| Virginia 11 | James M. Garnett | Democratic-Republican | 1805 | Incumbent re-elected. | ▌Y James M. Garnett (Democratic-Republican) 63.2% ▌Larkin Smith (Democratic-Republican) 36.8% |
| Virginia 12 | Burwell Bassett | Democratic-Republican | 1805 | Incumbent re-elected. | ▌Y Burwell Bassett (Democratic-Republican) 100% |
| Virginia 13 | William A. Burwell | Democratic-Republican | 1806 (special) | Incumbent re-elected. | ▌Y William A. Burwell (Democratic-Republican) 100% |
| Virginia 14 | Matthew Clay | Democratic-Republican | 1797 | Incumbent re-elected. | ▌Y Matthew Clay (Democratic-Republican) 99.5% |
| Virginia 15 | John Randolph | D-R Quid | 1799 | Incumbent re-elected. | ▌Y John Randolph (D-R Quid) 100% |
| Virginia 16 | John W. Eppes | Democratic-Republican | 1803 | Incumbent re-elected. | ▌Y John W. Eppes (Democratic-Republican) 100% |
| Virginia 17 | John Claiborne | Democratic-Republican | 1805 | Incumbent re-elected. | ▌Y John Claiborne (Democratic-Republican) 100% |
| Virginia 18 | Peterson Goodwyn | Democratic-Republican | 1803 | Incumbent re-elected. | ▌Y Peterson Goodwyn (Democratic-Republican) 100% |
| Virginia 19 | Edwin Gray | D-R Quid | 1799 | Incumbent re-elected. | ▌Y Edwin Gray (D-R Quid) 100% |
| Virginia 20 | Thomas Newton Jr. | Democratic-Republican | 1799 | Incumbent re-elected. | ▌Y Thomas Newton Jr. (Democratic-Republican) 100% |
| Virginia 21 | Thomas M. Randolph | Democratic-Republican | 1803 | Incumbent retired. Democratic-Republican hold. | ▌Y Wilson C. Nicholas (Democratic-Republican) 100% |
| Virginia 22 | John Clopton | Democratic-Republican | 1801 | Incumbent re-elected. | ▌Y John Clopton (Democratic-Republican) 52.4% ▌Peyton Randolph (D-R Quid) 47.8% |

## Non-voting delegates

As in the previous congress, there were three territories with non-voting delegates in the 10th Congress. In Indiana Territory, the legislature elected the delegate. The source used did not have information about Mississippi or Orleans Territory. Mississippi used popular election in 1808, while Orleans Territory elected its delegate by the legislature in 1808, suggesting Orleans probably used legislative election this year, too.
| District | Incumbent | Incumbent | Incumbent | This race | This race |
| District | Delegate | Party | First elected | Results | Candidates |
| Indiana Territory at-large | Benjamin Parke | Federalist | 1805 | Incumbent re-elected September 3, 1807. | ▌Y Benjamin Parke (Federalist) 8 ▌John Rice Jones (Unknown) 1 ▌Waller Taylor (Unknown) 1 ▌Shadrach Bond (Unknown) 1 |
| Mississippi Territory at-large | William Lattimore | Democratic- Republican | 1803 | Unknown if incumbent retired or lost re-election. Democratic-Republican hold. | ▌Y George Poindexter (Democratic-Republican) [data missing] |
| Orleans Territory at-large (9th Congress) | New district | New district | New district | New seat. New delegate elected August 1, 1806 to finish the current term. | ▌Y Daniel Clark (Independent) |
| Orleans Territory at-large (10th Congress) | Daniel Clark | Independent | 1806 | Incumbent re-elected September 10, 1806. | ▌Y Daniel Clark (Independent) |