# United States House of Representatives elections in Delaware

"none" is preferred when the title alone is adequate; see [[WP:SDNONE]] This table shows the results of general elections for the United States House of Representatives from Delaware, beginning in 1788 when the United States Constitution of 1787 went into effect.

## List of elections

| Date | Cong. | Seat | Election type | Winner(s) | Party | Votes | % | Opponent(s) | Party | Votes | % |
| Jan 7, 1789 | 1st | At-large | general | John Vining | Pro-Administration | 898 | 43.6% | Rhoads Shankland | Anti-Administration | 491 | 23.8% |
| Jan 7, 1789 | 1st | At-large | general | John Vining | Pro-Administration | 898 | 43.6% | Gunning Bedford Jr. | Pro-Administration | 308 | 15.0% |
| Jan 7, 1789 | 1st | At-large | general | John Vining | Pro-Administration | 898 | 43.6% | Joshua Clayton | Pro-Administration | 272 | 13.2% |
| Jan 7, 1789 | 1st | At-large | general | John Vining | Pro-Administration | 898 | 43.6% | Allan McLane | Pro-Administration | 90 | 4.4% |
| Nov 8, 1790 | 2nd | At-large | general | John Vining | Pro-Administration | 252 | 50.3% | Joshua Clayton | Pro-Administration | 145 | 28.9% |
| Nov 8, 1790 | 2nd | At-large | general | John Vining | Pro-Administration | 252 | 50.3% | Thomas Duff | | 104 | 20.8% |
| Oct 2, 1792 | 3rd | At-large | general | John Patten | Anti-Administration | 2,273 | 38.8% | Henry Latimer | Pro-Administration | 2,243 | 38.3% |
| Oct 2, 1792 | 3rd | At-large | general | John Patten | Anti-Administration | 2,273 | 38.8% | Francis Many | | 685 | 11.7% |
| Oct 2, 1792 | 3rd | At-large | general | John Patten | Anti-Administration | 2,273 | 38.8% | Edward Roche | Anti-Administration | 465 | 7.9% |
| Oct 2, 1792 | 3rd | At-large | general | John Patten | Anti-Administration | 2,273 | 38.8% | Andrew Barrett | Pro-Administration | 195 | 3.3% |
| Oct 2, 1792 | 3rd | At-large | recount | Henry Latimer | Pro-Administration | 2,238 | 50.4% | John Patten | Anti-Administration | 2,205 | 49.6% |
| Oct 4, 1794 | 4th | At-large | general | John Patten | Democratic-Republican | 2,409 | 51.3% | Henry Latimer | Federalist | 2,285 | 48.7% |
| Oct 4, 1796 | 5th | At-large | general | James A. Bayard | Federalist | 2,292 | 56.3% | William Perry | Democratic-Republican | 1,779 | 43.7% |
| Oct 2, 1798 | 6th | At-large | general | James A. Bayard | Federalist | 2,792 | 61.2% | Archibald Alexander | Democratic-Republican | 1,772 | 38.8% |
| Oct 7, 1800 | 7th | At-large | general | James A. Bayard | Federalist | 2,674 | 53.3% | John Patten | Democratic-Republican | 2,340 | 46.7% |
| Oct 5, 1802 | 8th | At-large | general | Caesar Augustus Rodney | Democratic-Republican | 3,421 | 50.1% | James A. Bayard | Federalist | 3,406 | 49.9% |
| Oct 2, 1804 | 9th | At-large | general | James A. Bayard | Federalist | 4,398 | 52.1% | Caesar Augustus Rodney | Democratic-Republican | 4,040 | 47.9% |
| Oct 1, 1805 | 9th | At-large | special | James M. Broom | Federalist | 3,011 | 52.7% | David Hall | Democratic-Republican | 2,682 | 46.9% |
| Oct 1, 1805 | 9th | At-large | special | James M. Broom | Federalist | 3,011 | 52.7% | Isaac H. Starr | Democratic-Republican | 24 | 0.4% |
| Oct 7, 1806 | 10th | At-large | general | James M. Broom | Federalist | 2,353 | 60.5% | Thomas Fitzgerald | Democratic-Republican | 830 | 21.3% |
| Oct 7, 1806 | 10th | At-large | general | James M. Broom | Federalist | 2,353 | 60.5% | Joseph Haslet | Democratic-Republican | 382 | 9.8% |
| Oct 7, 1806 | 10th | At-large | general | James M. Broom | Federalist | 2,353 | 60.5% | Thomas Montgomery | Democratic-Republican | 323 | 8.3% |
| Oct 6, 1807 | 10th | At-large | special | Nicholas Van Dyke | Federalist | 3,294 | 51.7% | John Dickinson | Democratic-Republican | 3,078 | 48.3% |
| Oct 4, 1808 | 11th | At-large | general | Nicholas Van Dyke | Federalist | 3,242 | 53.3% | Joseph Haslet | Democratic-Republican | 2,837 | 46.7% |
| Oct 2, 1810 | 12th | At-large | general | Henry M. Ridgely | Federalist | 3,634 | 50.1% | Richard C. Dale | Democratic-Republican | 3,617 | 49.9% |
| Oct 6, 1812 | 13th | At-large (2 seats) | general | Henry M. Ridgely | Federalist | 4,193 | 28.3% | David Hall | Democratic-Republican | 3,221 | 21.8% |
| Oct 6, 1812 | 13th | At-large (2 seats) | general | Thomas Cooper | Federalist | 4,183 | 28.3% | Richard C. Dale | Democratic-Republican | 3,210 | 21.7% |
| Oct 4, 1814 | 14th | At-large (2 seats) | general | Thomas Clayton | Federalist | 3,964 | 30.5% | Willard Hall | Democratic-Republican | 2,547 | 19.6% |
| Oct 4, 1814 | 14th | At-large (2 seats) | general | Thomas Cooper | Federalist | 3,960 | 30.4% | George Read Jr. | Democratic-Republican | 2,545 | 19.6% |
| Oct 7, 1816 | 15th | At-large (2 seats) | general | Louis McLane | Federalist | 3,580 | 24.1% | Caesar Augustus Rodney | Democratic-Republican | 3,476 | 23.4% |
| Oct 7, 1816 | 15th | At-large (2 seats) | general | Louis McLane | Federalist | 3,580 | 24.1% | Caleb Rodney | Federalist | 3,410 | 22.9% |
| Oct 7, 1816 | 15th | At-large (2 seats) | general | Willard Hall | Democratic-Republican | 3,524 | 23.7% | Thomas Clayton | Federalist | 486 | 3.3% |
| Oct 7, 1816 | 15th | At-large (2 seats) | general | Willard Hall | Democratic-Republican | 3,524 | 23.7% | Thomas Cooper | Federalist | 390 | 2.6% |
| Oct 5, 1818 | 16th | At-large (2 seats) | general | Louis McLane | Federalist | 3,098 | 26.2% | Thomas Clayton | Federalist | 2,902 | 24.6% |
| Oct 5, 1818 | 16th | At-large (2 seats) | general | Willard Hall | Democratic-Republican | 3,007 | 25.4% | George Read Jr. | Democratic-Republican | 2,810 | 23.8% |
| Oct 3, 1820 | 17th | At-large (2 seats) | general | Caesar Augustus Rodney | Democratic-Republican | 4,029 | 26.9% | Willard Hall | Democratic-Republican | 3,525 | 23.5% |
| Oct 3, 1820 | 17th | At-large (2 seats) | general | Louis McLane | Federalist | 3,918 | 26.2% | John Mitchell | Federalist | 3,500 | 23.4% |
| Oct 1, 1822 | 17th | At-large | special | Daniel Rodney | Federalist | 3,884 | 51.5% | James Derickson | Democratic-Republican | 3,653 | 48.5% |
| Oct 1, 1822 | 18th | At-large | general | Louis McLane | Federalist | 4,110 | 54.3% | Arnold Naudain | Democratic-Republican | 3,466 | 45.7% |
| Oct 5, 1824 | 19th | At-large | general | Louis McLane | Federalist | 3,387 | 51.7% | Arnold Naudain | Democratic-Republican | 3,163 | 48.3% |
| Oct 3, 1826 | 20th | At-large | general | Louis McLane | Federalist | 4,630 | 54.1% | Arnold Naudain | Democratic-Republican | 3,931 | 45.9% |
| Oct 2, 1827 | 20th | At-large | special | Kensey Johns Jr. | National Republican | 4,148 | 52.5% | James A. Bayard Jr. | Jacksonian Democratic | 3,753 | 47.5% |
| Oct 7, 1828 | 21st | At-large | general | Kensey Johns Jr. | National Republican | 4,769 | 52.3% | James A. Bayard Jr. | Jacksonian Democratic | 4,347 | 47.7% |
| Nov 13, 1830 | 22nd | At-large | general | John J. Milligan | National Republican | 4,267 | 52.7% | Henry M. Ridgely | Jacksonian Democratic | 3,833 | 47.3% |
| Nov 13, 1832 | 23rd | At-large | general | John J. Milligan | National Republican | 4,257 | 50.7% | Martin W. Bates | Jacksonian Democratic | 4,142 | 49.3% |
| Nov 11, 1834 | 24th | At-large | general | John J. Milligan | Whig | 4,779 | 50.8% | James A. Bayard Jr. | Democratic | 4,626 | 49.2% |
| Nov 8, 1836 | 25th | At-large | general | John J. Milligan | Whig | 4,705 | 52.6% | Martin W. Bates | Democratic | 4,247 | 47.4% |
| Nov 13, 1838 | 26th | At-large | general | Thomas Robinson Jr. | Democratic | 4,437 | 50.3% | John J. Milligan | Whig | 4,379 | 49.7% |
| Nov 10, 1840 | 27th | At-large | general | George B. Rodney | Whig | 5,896 | 54.2% | Thomas Robinson Jr. | Democratic | 4,974 | 45.8% |
| Nov 8, 1842 | 28th | At-large | general | George B. Rodney | Whig | 5,465 | 50.04% | William Hemphill Jones | Democratic | 5,456 | 49.96% |
| Nov 12, 1844 | 29th | At-large | general | John W. Houston | Whig | 6,229 | 50.8% | George R. Riddle | Democratic | 6,023 | 49.2% |
| Nov 10, 1846 | 30th | At-large | general | John W. Houston | Whig | 6,254 | 51.0% | John D. Delworth | Democratic | 6,007 | 49.0% |
| Nov 6, 1848 | 31st | At-large | general | John W. Houston | Whig | 6,369 | 51.4% | William G. Whiteley | Democratic | 6,026 | 48.6% |
| Nov 12, 1850 | 32nd | At-large | general | George R. Riddle | Democratic | 6,055 | 49.2% | George B. Rodney | Whig | 5,936 | 48.2% |
| Nov 12, 1850 | 32nd | At-large | general | George R. Riddle | Democratic | 6,055 | 49.2% | Francis D. Wait | Temperance | 313 | 2.5% |
| Nov 8, 1852 | 33rd | At-large | general | George R. Riddle | Democratic | 6,692 | 50.2% | John W. Houston | Whig | 6,630 | 49.8% |
| Nov 14, 1854 | 34th | At-large | general | Elisha D. Cullen | American | 6,820 | 51.8% | George R. Riddle | Democratic | 6,334 | 48.2% |
| Nov 4, 1856 | 35th | At-large | general | William G. Whiteley | Democratic | 8,111 | 56.1% | Elisha D. Cullen | American | 6,360 | 43.9% |
| Nov 2, 1858 | 36th | At-large | general | William G. Whiteley | Democratic | 7,868 | 51.4% | William H. Morris | People's | 7,452 | 48.6% |
| Nov 6, 1860 | 37th | At-large | general | George P. Fisher | People's | 7,732 | 48.4% | Benjamin T. Biggs | Democratic | 7,485 | 46.8% |
| Nov 6, 1860 | 37th | At-large | general | George P. Fisher | People's | 7,732 | 48.4% | Elias Reed | Democratic | 761 | 4.8% |
| Nov 1, 1862 | 38th | At-large | general | William Temple | Democratic | 8,051 | 50.1% | George P. Fisher | Union | 8,014 | 49.9% |
| Nov 19, 1863 | 38th | At-large | special | Nathaniel B. Smithers | Union | 8,215 | 99.8% | Charles Brown | Copperhead | 15 | 0.2% |
| Nov 8, 1864 | 39th | At-large | general | John A. Nicholson | Democratic | 8,762 | 51.5% | Nathaniel B. Smithers | Union | 8,253 | 48.5% |
| Nov 6, 1866 | 40th | At-large | general | John A. Nicholson | Democratic | 9,933 | 53.7% | John L. McKim | Republican | 8,553 | 46.3% |
| Nov 3, 1868 | 41st | At-large | general | Benjamin T. Biggs | Democratic | 10,961 | 58.9% | Alfred I. Torbet | Republican | 7,636 | 41.1% |
| Nov 8, 1870 | 42nd | At-large | general | Benjamin T. Biggs | Democratic | 12,434 | 55.4% | Joshua T. Heald | Republican | 10,001 | 44.6% |
| Nov 5, 1872 | 43rd | At-large | general | James R. Lofland | Republican | 11,378 | 50.8% | Eustis Wright | Democratic | 11,023 | 49.2% |
| Nov 3, 1874 | 44th | At-large | general | James Williams | Democratic | 12,602 | 53.3% | James R. Lofland | Republican | 11,024 | 46.7% |
| Nov 7, 1876 | 45th | At-large | general | James Williams | Democratic | 13,169 | 54.9% | Levi C. Bird | Republican | 10,592 | 44.1% |
| Nov 7, 1876 | 45th | At-large | general | James Williams | Democratic | 13,169 | 54.9% | Charles Moore | Temperance | 236 | 1.0% |
| Nov 5, 1878 | 46th | At-large | general | Edward L. Martin | Democratic | 10,576 | 78.1% | John G. Jackson | Greenback | 2,966 | 21.9% |
| Nov 2, 1880 | 47th | At-large | general | Edward L. Martin | Democratic | 14,966 | 50.8% | John W. Houston | Republican | 14,336 | 48.7% |
| Nov 2, 1880 | 47th | At-large | general | Edward L. Martin | Democratic | 14,966 | 50.8% | John G. Jackson | Greenback | 132 | 0.4% |
| Nov 7, 1882 | 48th | At-large | general | Charles B. Lore | Democratic | 16,563 | 53.1% | Washington Hastings | Republican | 14,640 | 46.9% |
| Nov 4, 1884 | 49th | At-large | general | Charles B. Lore | Democratic | 17,054 | 57.0% | Anthony Higgins | Republican | 12,878 | 43.0% |
| Nov 2, 1886 | 50th | At-large | general | John B. Penington | Democratic | 13,837 | 62.2% | Richard W. Cooper | Temperance Reform | 8,392 | 37.8% |
| Nov 6, 1888 | 51st | At-large | general | John B. Penington | Democratic | 16,396 | 55.2% | Charles H. Treat | Republican | 12,935 | 43.5% |
| Nov 6, 1888 | 51st | At-large | general | John B. Penington | Democratic | 16,396 | 55.2% | Charles H. Register | Prohibition | 387 | 1.3% |
| Nov 4, 1890 | 52nd | At-large | general | John W. Causey | Democratic | 17,848 | 50.6% | Henry P. Cannon | Republican | 17,180 | 48.7% |
| Nov 4, 1890 | 52nd | At-large | general | John W. Causey | Democratic | 17,848 | 50.6% | Daniel M. Green | Prohibition | 257 | 0.7% |
| Nov 8, 1892 | 53rd | At-large | general | John W. Causey | Democratic | 18,554 | 50.0% | Jonathan S. Willis | Republican | 18,080 | 48.7% |
| Nov 8, 1892 | 53rd | At-large | general | John W. Causey | Democratic | 18,554 | 50.0% | Lewis M. Price | Prohibition | 509 | 1.4% |
| Nov 6, 1894 | 54th | At-large | general | Jonathan S. Willis | Republican | 19,789 | 50.8% | Samuel Bancroft | Democratic | 18,492 | 47.5% |
| Nov 6, 1894 | 54th | At-large | general | Jonathan S. Willis | Republican | 19,789 | 50.8% | W. W. Bullock | Prohibition | 584 | 1.5% |
| Nov 6, 1894 | 54th | At-large | general | Jonathan S. Willis | Republican | 19,789 | 50.8% | John P. Donahue | Independent Democratic | 67 | 0.2% |
| Nov 3, 1896 | 55th | At-large | general | L. Irving Handy | Democratic | 15,407 | 44.0% | Jonathan S. Willis | Union Republican | 11,159 | 31.9% |
| Nov 3, 1896 | 55th | At-large | general | L. Irving Handy | Democratic | 15,407 | 44.0% | Robert G. Houston | Republican | 7,123 | 20.4% |
| Nov 3, 1896 | 55th | At-large | general | L. Irving Handy | Democratic | 15,407 | 44.0% | Thomas F. Bayard Jr. | Honest Money Democratic | 844 | 2.4% |
| Nov 3, 1896 | 55th | At-large | general | L. Irving Handy | Democratic | 15,407 | 44.0% | William Faries | Prohibition | 462 | 1.3% |
| Nov 8, 1898 | 56th | At-large | general | John H. Hoffecker | Republican | 17,566 | 53.1% | L. Irving Handy | Democratic | 15,053 | 45.5% |
| Nov 8, 1898 | 56th | At-large | general | John H. Hoffecker | Republican | 17,566 | 53.1% | Lewis M. Brosius | Prohibition | 454 | 1.4% |
| Nov 6, 1900 | 56th | At-large | special | Walter O. Hoffecker | Republican | 22,389 | 53.5% | Edward Fowler | Democratic | 19,012 | 45.4% |
| Nov 6, 1900 | 56th | At-large | special | Walter O. Hoffecker | Republican | 22,389 | 53.5% | Lewis M. Price | Prohibition | 394 | 0.9% |
| Nov 6, 1900 | 56th | At-large | special | Walter O. Hoffecker | Republican | 22,389 | 53.5% | John P. Mettler | Social Democratic | 55 | 0.1% |
| Nov 6, 1900 | 57th | At-large | general | L. Heisler Ball | Republican | 22,353 | 53.1% | Alexander M. Daly | Democratic | 19,157 | 45.5% |
| Nov 6, 1900 | 57th | At-large | general | L. Heisler Ball | Republican | 22,353 | 53.1% | Lewis M. Brosius | Prohibition | 548 | 1.3% |
| Nov 6, 1900 | 57th | At-large | general | L. Heisler Ball | Republican | 22,353 | 53.1% | Nathan Shtofman | Social Democratic | 54 | 0.1% |
| Nov 4, 1902 | 58th | At-large | general | Henry A. Houston | Democratic | 16,396 | 42.9% | William A. Byrne | Union Republican | 12,998 | 34.0% |
| Nov 4, 1902 | 58th | At-large | general | Henry A. Houston | Democratic | 16,396 | 42.9% | L. Heisler Ball | Republican | 8,028 | 21.0% |
| Nov 4, 1902 | 58th | At-large | general | Henry A. Houston | Democratic | 16,396 | 42.9% | George W. Todd | Prohibition | 569 | 1.5% |
| Nov 4, 1902 | 58th | At-large | general | Henry A. Houston | Democratic | 16,396 | 42.9% | James A. Ward | Labor | 216 | 0.6% |
| Nov 8, 1904 | 59th | At-large | general | Hiram R. Burton | Republican | 23,512 | 53.7% | Edward D. Hearne | Democratic | 19,552 | 44.6% |
| Nov 8, 1904 | 59th | At-large | general | Hiram R. Burton | Republican | 23,512 | 53.7% | William Faries | Prohibition | 607 | 1.4% |
| Nov 8, 1904 | 59th | At-large | general | Hiram R. Burton | Republican | 23,512 | 53.7% | John P. Edwards | Socialist | 135 | 0.3% |
| Nov 6, 1906 | 60th | At-large | general | Hiram R. Burton | Republican | 20,210 | 52.8% | David T. Marvel | Democratic | 17,118 | 44.8% |
| Nov 6, 1906 | 60th | At-large | general | Hiram R. Burton | Republican | 20,210 | 52.8% | Alfred Smith | Prohibition | 767 | 2.0% |
| Nov 6, 1906 | 60th | At-large | general | Hiram R. Burton | Republican | 20,210 | 52.8% | Frank A. Houck | Socialist | 149 | 0.4% |
| Nov 3, 1908 | 61st | At-large | general | William H. Heald | Republican | 24,314 | 50.7% | L. Irving Handy | Democratic | 22,515 | 46.9% |
| Nov 3, 1908 | 61st | At-large | general | William H. Heald | Republican | 24,314 | 50.7% | William E. Hawkins | Prohibition | 921 | 1.9% |
| Nov 3, 1908 | 61st | At-large | general | William H. Heald | Republican | 24,314 | 50.7% | Frank A. Houck | Socialist | 228 | 0.5% |
| Nov 3, 1908 | 61st | At-large | general | William H. Heald | Republican | 24,314 | 50.7% | Elliott Cresson | Independence League | 10 | <0.1% |
| Nov 8, 1910 | 62nd | At-large | general | William H. Heald | Republican | 22,410 | 50.9% | Robert C. White | Democratic | 20,281 | 46.1% |
| Nov 8, 1910 | 62nd | At-large | general | William H. Heald | Republican | 22,410 | 50.9% | Lewis M. Brosius | Prohibition | 763 | 1.7% |
| Nov 8, 1910 | 62nd | At-large | general | William H. Heald | Republican | 22,410 | 50.9% | Frank A. Houck | Socialist | 559 | 1.3% |
| Nov 5, 1912 | 63rd | At-large | general | Franklin Brockson | Democratic | 22,485 | 46.2% | George Hall | Republican | 16,740 | 34.4% |
| Nov 5, 1912 | 63rd | At-large | general | Franklin Brockson | Democratic | 22,485 | 46.2% | Hiram R. Burton | National Progressive | 5,497 | 11.3% |
| Nov 5, 1912 | 63rd | At-large | general | Franklin Brockson | Democratic | 22,485 | 46.2% | Louis A. Drexler | Progressive | 2,825 | 5.8% |
| Nov 5, 1912 | 63rd | At-large | general | Franklin Brockson | Democratic | 22,485 | 46.2% | John H. Kelly | Prohibition | 597 | 1.2% |
| Nov 5, 1912 | 63rd | At-large | general | Franklin Brockson | Democratic | 22,485 | 46.2% | Edward Norton | Socialist | 563 | 1.2% |
| Nov 3, 1914 | 64th | At-large | general | Thomas W. Miller | Republican | 22,922 | 50.1% | Franklin Brockson | Democratic | 20,681 | 45.2% |
| Nov 3, 1914 | 64th | At-large | general | Thomas W. Miller | Republican | 22,922 | 50.1% | James H. Anderson | Prohibition/Progressive | 1,653 | 3.6% |
| Nov 3, 1914 | 64th | At-large | general | Thomas W. Miller | Republican | 22,922 | 50.1% | William H. Connor | Socialist | 463 | 1.0% |
| Nov 7, 1916 | 65th | At-large | general | Albert F. Polk | Democratic | 24,395 | 47.6% | Thomas W. Miller | Republican | 24,202 | 47.3% |
| Nov 7, 1916 | 65th | At-large | general | Albert F. Polk | Democratic | 24,395 | 47.6% | Edward G. Bradford | Progressive | 2,130 | 4.2% |
| Nov 7, 1916 | 65th | At-large | general | Albert F. Polk | Democratic | 24,395 | 47.6% | Frederick K. Miller | Socialist | 484 | 0.9% |
| Nov 5, 1918 | 66th | At-large | general | Caleb R. Layton | Republican | 21,226 | 51.4% | Albert F. Polk | Democratic | 19,652 | 47.6% |
| Nov 5, 1918 | 66th | At-large | general | Caleb R. Layton | Republican | 21,226 | 51.4% | William H. Crawford | Socialist | 420 | 1.0% |
| Nov 2, 1920 | 67th | At-large | general | Caleb R. Layton | Republican | 52,145 | 55.7% | James R. Clements | Democratic | 40,206 | 43.0% |
| Nov 2, 1920 | 67th | At-large | general | Caleb R. Layton | Republican | 52,145 | 55.7% | Robert A. Walker | Socialist | 1,063 | 1.1% |
| Nov 2, 1920 | 67th | At-large | general | Caleb R. Layton | Republican | 52,145 | 55.7% | Howard T. Ennis | Independent | 196 | 0.2% |
| Nov 7, 1922 | 68th | At-large | general | William H. Boyce | Democratic | 39,126 | 53.9% | Caleb R. Layton | Republican | 32,577 | 44.9% |
| Nov 7, 1922 | 68th | At-large | general | William H. Boyce | Democratic | 39,126 | 53.9% | Frank A. Houck | Forward | 908 | 1.3% |
| Nov 4, 1924 | 69th | At-large | general | Robert G. Houston | Republican | 51,536 | 58.6% | William H. Boyce | Democratic | 35,943 | 40.8% |
| Nov 4, 1924 | 69th | At-large | general | Robert G. Houston | Republican | 51,536 | 58.6% | Florence Garvin | Prohibition | 519 | 0.6% |
| Nov 2, 1926 | 70th | At-large | general | Robert G. Houston | Republican | 38,919 | 56.9% | Merrill H. Tilghman | Democratic | 29,424 | 43.1% |
| Nov 6, 1928 | 71st | At-large | general | Robert G. Houston | Republican | 66,361 | 63.6% | John M. Richardson | Democratic | 38,045 | 36.4% |
| Nov 4, 1930 | 72nd | At-large | general | Robert G. Houston | Republican | 48,493 | 55.7% | John P. Le Fevre | Democratic | 38,391 | 44.1% |
| Nov 4, 1930 | 72nd | At-large | general | Robert G. Houston | Republican | 48,493 | 55.7% | Arnold Williams | Communist | 127 | 0.1% |
| Nov 8, 1932 | 73rd | At-large | general | Wilbur L. Adams | Democratic | 51,698 | 46.1% | Reuben Satterthwaite Jr. | Republican | 48,841 | 43.6% |
| Nov 8, 1932 | 73rd | At-large | general | Wilbur L. Adams | Democratic | 51,698 | 46.1% | Francis B. Short | Prohibition | 10,560 | 9.4% |
| Nov 8, 1932 | 73rd | At-large | general | Wilbur L. Adams | Democratic | 51,698 | 46.1% | Edgar G. Shaeffer | Socialist | 887 | 0.8% |
| Nov 8, 1932 | 73rd | At-large | general | Wilbur L. Adams | Democratic | 51,698 | 46.1% | Frank Rhoades | Communist | 110 | <0.1% |
| Nov 6, 1934 | 74th | At-large | general | J. George Stewart | Republican | 52,468 | 53.1% | John C. Hazzard | Democratic | 45,927 | 46.5% |
| Nov 6, 1934 | 74th | At-large | general | J. George Stewart | Republican | 52,468 | 53.1% | William A. Mayer | Socialist | 404 | 0.4% |
| Nov 6, 1934 | 74th | At-large | general | J. George Stewart | Republican | 52,468 | 53.1% | Joseph P. Daniels | Communist | 58 | <0.1% |
| Nov 3, 1936 | 75th | At-large | general | William F. Allen | Democratic | 65,485 | 51.7% | J. George Stewart | Republican | 55,664 | 43.9% |
| Nov 3, 1936 | 75th | At-large | general | William F. Allen | Democratic | 65,485 | 51.7% | James A. Ellison | Independent Republican | 5,338 | 4.2% |
| Nov 3, 1936 | 75th | At-large | general | William F. Allen | Democratic | 65,485 | 51.7% | William A. Mayer | Socialist | 176 | 0.1% |
| Nov 8, 1938 | 76th | At-large | general | George S. Williams | Republican | 60,661 | 55.9% | William F. Allen | Democratic | 46,989 | 43.3% |
| Nov 8, 1938 | 76th | At-large | general | George S. Williams | Republican | 60,661 | 55.9% | William J. Highfield | Independent Republican | 816 | 0.8% |
| Nov 8, 1938 | 76th | At-large | general | George S. Williams | Republican | 60,661 | 55.9% | Ralph L. Brown | Prohibition | 105 | <0.1% |
| Nov 5, 1940 | 77th | At-large | general | Philip A. Traynor | Democratic | 68,205 | 50.6% | George S. Williams | Republican | 64,384 | 47.8% |
| Nov 5, 1940 | 77th | At-large | general | Philip A. Traynor | Democratic | 68,205 | 50.6% | Royden C. Caulk | Liberal Democratic | 2,189 | 1.6% |
| Nov 3, 1942 | 78th | At-large | general | Earle D. Willey | Republican | 45,376 | 53.6% | Philip A. Traynor | Democratic | 38,791 | 45.8% |
| Nov 3, 1942 | 78th | At-large | general | Earle D. Willey | Republican | 45,376 | 53.6% | Charles A. Kirk | Prohibition | 559 | 0.7% |
| Nov 7, 1944 | 79th | At-large | general | Philip A. Traynor | Democratic | 63,649 | 50.3% | Earle D. Willey | Republican | 62,378 | 49.3% |
| Nov 7, 1944 | 79th | At-large | general | Philip A. Traynor | Democratic | 63,649 | 50.3% | Harold H. Vigneulle | Prohibition | 413 | 0.3% |
| Nov 5, 1946 | 80th | At-large | general | J. Caleb Boggs | Republican | 63,516 | 56.4% | Philip A. Traynor | Democratic | 49,105 | 43.6% |
| Nov 2, 1948 | 81st | At-large | general | J. Caleb Boggs | Republican | 71,127 | 50.6% | J. Carl McGuigan | Democratic | 68,909 | 49.0% |
| Nov 2, 1948 | 81st | At-large | general | J. Caleb Boggs | Republican | 71,127 | 50.6% | Edward C. Graham | Prohibition | 399 | 0.3% |
| Nov 2, 1948 | 81st | At-large | general | J. Caleb Boggs | Republican | 71,127 | 50.6% | LeRoy B. Jones | Socialist | 100 | <0.1% |
| Nov 7, 1950 | 82nd | At-large | general | J. Caleb Boggs | Republican | 73,313 | 56.7% | Henry M. Winchester | Republican | 56,091 | 43.3% |
| Nov 4, 1952 | 83rd | At-large | general | Herbert Warburton | Republican | 88,285 | 51.9% | Joseph S. Scannell | Democratic | 81,730 | 48.1% |
| Nov 2, 1954 | 84th | At-large | general | Harris McDowell | Democratic | 79,201 | 54.9% | Lillian I. Martin | Republican | 65,035 | 45.1% |
| Nov 6, 1956 | 85th | At-large | general | Harry G. Haskell Jr. | Republican | 91,538 | 52.0% | Harris McDowell | Democratic | 84,644 | 48.0% |
| Nov 4, 1958 | 86th | At-large | general | Harris McDowell | Democratic | 76,797 | 50.2% | Harry G. Haskell Jr. | Republican | 76,099 | 49.8% |
| Nov 8, 1960 | 87th | At-large | general | Harris McDowell | Democratic | 98,227 | 50.5% | James T. McKinstry | Republican | 96,337 | 49.5% |
| Nov 6, 1962 | 88th | At-large | general | Harris McDowell | Democratic | 81,166 | 52.9% | Wilmer F. Williams | Republican | 71,934 | 46.9% |
| Nov 6, 1962 | 88th | At-large | general | Harris McDowell | Democratic | 81,166 | 52.9% | Joseph B. Hollon | Socialist Labor | 256 | 0.2% |
| Nov 3, 1964 | 89th | At-large | general | Harris McDowell | Democratic | 112,361 | 56.6% | James H. Snowden | Republican | 86,254 | 43.4% |
| Nov 3, 1964 | 89th | At-large | general | Harris McDowell | Democratic | 112,361 | 56.6% | George LaForest | Socialist Labor | 76 | <0.1% |
| Nov 8, 1966 | 90th | At-large | general | William Roth | Republican | 90,961 | 55.8% | Harris McDowell | Democratic | 72,142 | 44.2% |
| Nov 5, 1968 | 91st | At-large | general | William Roth | Republican | 117,827 | 58.7% | Harris McDowell | Democratic | 82,993 | 41.3% |
| Nov 3, 1970 | 92nd | At-large | general | Pete du Pont | Republican | 86,125 | 53.7% | John D. Daniello | Democratic | 71,429 | 44.6% |
| Nov 3, 1970 | 92nd | At-large | general | Pete du Pont | Republican | 86,125 | 53.7% | Walter Hoey | American | 2,759 | 1.7% |
| Nov 7, 1972 | 93rd | At-large | general | Pete du Pont | Republican | 141,237 | 62.5% | Norma Handloff | Democratic | 83,230 | 36.9% |
| Nov 7, 1972 | 93rd | At-large | general | Pete du Pont | Republican | 141,237 | 62.5% | Robert G. LoPresti | American | 1,120 | 0.5% |
| Nov 7, 1972 | 93rd | At-large | general | Pete du Pont | Republican | 141,237 | 62.5% | Rachel L. Dickerson | Prohibition | 264 | 0.1% |
| Nov 5, 1974 | 94th | At-large | general | Pete du Pont | Republican | 93,826 | 58.5% | James R. Soles | Democratic | 63,490 | 39.6% |
| Nov 5, 1974 | 94th | At-large | general | Pete du Pont | Republican | 93,826 | 58.5% | Donald G. Gies | American | 1,250 | 0.8% |
| Nov 5, 1974 | 94th | At-large | general | Pete du Pont | Republican | 93,826 | 58.5% | John Trager | Public Congress | 1,241 | 0.8% |
| Nov 5, 1974 | 94th | At-large | general | Pete du Pont | Republican | 93,826 | 58.5% | George C. Brown | Prohibition | 370 | 0.2% |
| Nov 5, 1974 | 94th | At-large | general | Pete du Pont | Republican | 93,826 | 58.5% | Melvin Dillard | U.S. Labor | 151 | <0.1% |
| Nov 2, 1976 | 95th | At-large | general | Thomas B. Evans Jr. | Republican | 110,677 | 51.5% | Samuel L. Shipley | Democratic | 102,431 | 47.7% |
| Nov 2, 1976 | 95th | At-large | general | Thomas B. Evans Jr. | Republican | 110,677 | 51.5% | Robert G. LoPresti | American | 840 | 0.4% |
| Nov 2, 1976 | 95th | At-large | general | Thomas B. Evans Jr. | Republican | 110,677 | 51.5% | Joseph B. Hollon | Socialist Labor | 347 | 0.2% |
| Nov 2, 1976 | 95th | At-large | general | Thomas B. Evans Jr. | Republican | 110,677 | 51.5% | Raymond R. Green | Prohibition | 346 | 0.2% |
| Nov 2, 1976 | 95th | At-large | general | Thomas B. Evans Jr. | Republican | 110,677 | 51.5% | Phillip Valenti | U.S. Labor | 158 | <0.1% |
| Nov 7, 1978 | 96th | At-large | general | Thomas B. Evans Jr. | Republican | 91,689 | 58.2% | Gary E. Hindes | Democratic | 64,863 | 41.2% |
| Nov 7, 1978 | 96th | At-large | general | Thomas B. Evans Jr. | Republican | 91,689 | 58.2% | James E. Hicks | American | 1,014 | 0.6% |
| Nov 4, 1980 | 97th | At-large | general | Thomas B. Evans Jr. | Republican | 133,842 | 61.8% | Robert L. Maxwell | Democratic | 81,227 | 37.5% |
| Nov 4, 1980 | 97th | At-large | general | Thomas B. Evans Jr. | Republican | 133,842 | 61.8% | Lawrence D. Sullivan | Libertarian | 1,506 | 0.7% |
| Nov 2, 1982 | 98th | At-large | general | Tom Carper | Democratic | 98,533 | 52.4% | Thomas B. Evans Jr. | Republican | 87,153 | 46.3% |
| Nov 2, 1982 | 98th | At-large | general | Tom Carper | Democratic | 98,533 | 52.4% | Mary D. Gies | American | 1,109 | 0.6% |
| Nov 2, 1982 | 98th | At-large | general | Tom Carper | Democratic | 98,533 | 52.4% | Richard A. Cohen | Libertarian | 711 | 0.4% |
| Nov 2, 1982 | 98th | At-large | general | Tom Carper | Democratic | 98,533 | 52.4% | David A. Nuttall | Citizens | 558 | 0.3% |
| Nov 6, 1984 | 99th | At-large | general | Tom Carper | Democratic | 142,070 | 58.5% | Elise du Pont | Republican | 100,650 | 41.4% |
| Nov 6, 1984 | 99th | At-large | general | Tom Carper | Democratic | 142,070 | 58.5% | Vernon L. Etzel | Libertarian | 294 | 0.1% |
| Nov 4, 1986 | 100th | At-large | general | Tom Carper | Democratic | 106,351 | 66.2% | Thomas S. Neuberger | Republican | 53,767 | 33.4% |
| Nov 4, 1986 | 100th | At-large | general | Tom Carper | Democratic | 106,351 | 66.2% | Patrick F. Harrison | American | 639 | 0.4% |
| Nov 8, 1988 | 101st | At-large | general | Tom Carper | Democratic | 158,338 | 67.5% | James P. Krapf | Republican | 76,179 | 32.5% |
| Nov 6, 1990 | 102nd | At-large | general | Tom Carper | Democratic | 116,274 | 65.5% | Ralph O. Williams | Republican | 58,037 | 32.7% |
| Nov 6, 1990 | 102nd | At-large | general | Tom Carper | Democratic | 116,274 | 65.5% | Richard A. Cohen | Libertarian | 3,121 | 1.8% |
| Nov 3, 1992 | 103rd | At-large | general | Mike Castle | Republican | 153,037 | 55.4% | S. B. Woo | Democratic | 117,426 | 42.5% |
| Nov 3, 1992 | 103rd | At-large | general | Mike Castle | Republican | 153,037 | 55.4% | Peggy Schmitt | Libertarian | 5,661 | 2.1% |
| Nov 8, 1994 | 104th | At-large | general | Mike Castle | Republican | 137,960 | 70.7% | Carol Ann DeSantis | Democratic | 51,803 | 26.6% |
| Nov 8, 1994 | 104th | At-large | general | Mike Castle | Republican | 137,960 | 70.7% | Danny Ray Beaver | Libertarian | 3,869 | 2.0% |
| Nov 8, 1994 | 104th | At-large | general | Mike Castle | Republican | 137,960 | 70.7% | Donald M. Hockmuth | A Delaware Party | 1,405 | 0.7% |
| Nov 5, 1996 | 105th | At-large | general | Mike Castle | Republican | 185,576 | 69.5% | Dennis E. Williams | Democratic | 73,253 | 27.5% |
| Nov 5, 1996 | 105th | At-large | general | Mike Castle | Republican | 185,576 | 69.5% | George A. Jurgensen | Libertarian | 4,000 | 1.5% |
| Nov 5, 1996 | 105th | At-large | general | Mike Castle | Republican | 185,576 | 69.5% | Felicia B. Johnson | U.S. Taxpayers | 3,009 | 1.1% |
| Nov 5, 1996 | 105th | At-large | general | Mike Castle | Republican | 185,576 | 69.5% | Robert E. Mattson | Natural Law | 987 | 0.4% |
| Nov 3, 1998 | 106th | At-large | general | Mike Castle | Republican | 119,811 | 66.4% | Dennis E. Williams | Democratic | 57,446 | 31.8% |
| Nov 3, 1998 | 106th | At-large | general | Mike Castle | Republican | 119,811 | 66.4% | James P. Webster | U.S. Taxpayers | 2,411 | 1.3% |
| Nov 3, 1998 | 106th | At-large | general | Mike Castle | Republican | 119,811 | 66.4% | Kim Stanley Bemis | Natural Law | 859 | 0.5% |
| Nov 7, 2000 | 107th | At-large | general | Mike Castle | Republican | 211,797 | 67.6% | Micheal C. Miller | Democratic | 96,488 | 30.8% |
| Nov 7, 2000 | 107th | At-large | general | Mike Castle | Republican | 211,797 | 67.6% | James P. Webster | Constitution | 2,490 | 0.8% |
| Nov 7, 2000 | 107th | At-large | general | Mike Castle | Republican | 211,797 | 67.6% | Brad C. Thomas | Libertarian | 2,351 | 0.8% |
| Nov 5, 2002 | 108th | At-large | general | Mike Castle | Republican | 164,605 | 72.1% | Micheal C. Miller | Democratic | 61,011 | 26.7% |
| Nov 5, 2002 | 108th | At-large | general | Mike Castle | Republican | 164,605 | 72.1% | Brad C. Thomas | Libertarian | 2,789 | 1.2% |
| Nov 2, 2004 | 109th | At-large | general | Mike Castle | Republican | 245,808 | 69.1% | Paul Donnelly | Democratic | 105,634 | 29.7% |
| Nov 2, 2004 | 109th | At-large | general | Mike Castle | Republican | 245,808 | 69.1% | Maurice J. Barros | Independent Party of Delaware | 2,334 | 0.7% |
| Nov 2, 2004 | 109th | At-large | general | Mike Castle | Republican | 245,808 | 69.1% | William E. Morris | Libertarian | 2,012 | 0.6% |
| Nov 7, 2006 | 110th | At-large | general | Mike Castle | Republican | 143,897 | 57.2% | Dennis Spivack | Democratic | 97,565 | 38.8% |
| Nov 7, 2006 | 110th | At-large | general | Mike Castle | Republican | 143,897 | 57.2% | Karen Hartley-Nagle | Independent Party of Delaware | 5,769 | 2.3% |
| Nov 7, 2006 | 110th | At-large | general | Mike Castle | Republican | 143,897 | 57.2% | Michael Berg | Green | 4,463 | 1.8% |
| Nov 4, 2008 | 111th | At-large | general | Mike Castle | Republican | 235,437 | 61.1% | Karen Hartley-Nagle | Democratic | 146,434 | 38.0% |
| Nov 4, 2008 | 111th | At-large | general | Mike Castle | Republican | 235,437 | 61.1% | Mark Anthony Parks | Libertarian | 3,586 | 0.9% |
| Nov 2, 2010 | 112th | At-large | general | John Carney | Democratic | 173,543 | 56.8% | Glen Urquhart | Republican | 125,442 | 41.0% |
| Nov 2, 2010 | 112th | At-large | general | John Carney | Democratic | 173,543 | 56.8% | Earl R. Lofland | Independent Party of Delaware | 3,704 | 1.2% |
| Nov 2, 2010 | 112th | At-large | general | John Carney | Democratic | 173,543 | 56.8% | Brent A. Wangen | Libertarian | 1,986 | 0.6% |
| Nov 2, 2010 | 112th | At-large | general | John Carney | Democratic | 173,543 | 56.8% | Jeffrey Brown | Blue Enigma | 961 | 0.3% |
| Nov 6, 2012 | 113th | At-large | general | John Carney | Democratic | 249,933 | 64.4% | Tom Kovach | Republican | 129,757 | 33.4% |
| Nov 6, 2012 | 113th | At-large | general | John Carney | Democratic | 249,933 | 64.4% | Bernard August | Green | 4,273 | 1.1% |
| Nov 6, 2012 | 113th | At-large | general | John Carney | Democratic | 249,933 | 64.4% | Scott Gesty | Libertarian | 4,096 | 1.1% |
| Nov 4, 2014 | 114th | At-large | general | John Carney | Democratic | 137,251 | 59.3% | Rose Izzo | Republican | 85,146 | 36.8% |
| Nov 4, 2014 | 114th | At-large | general | John Carney | Democratic | 137,251 | 59.3% | Bernard August | Green | 4,801 | 2.1% |
| Nov 4, 2014 | 114th | At-large | general | John Carney | Democratic | 137,251 | 59.3% | Scott Gesty | Libertarian | 4,419 | 1.9% |
| Nov 8, 2016 | 115th | At-large | general | Lisa Blunt Rochester | Democratic | 233,554 | 55.5% | Hans Reigle | Republican | 172,301 | 41.0% |
| Nov 8, 2016 | 115th | At-large | general | Lisa Blunt Rochester | Democratic | 233,554 | 55.5% | Mark J. Perri | Green | 8,326 | 2.0% |
| Nov 8, 2016 | 115th | At-large | general | Lisa Blunt Rochester | Democratic | 233,554 | 55.5% | Scott Gesty | Libertarian | 6,436 | 1.5% |
| Nov 6, 2018 | 116th | At-large | general | Lisa Blunt Rochester | Democratic | 227,353 | 64.5% | Scott Walker | Republican | 125,384 | 35.5% |
| Nov 3, 2020 | 117th | At-large | general | Lisa Blunt Rochester | Democratic | 281,382 | 57.6% | Lee H. Murphy | Republican | 196,392 | 40.2% |
| Nov 3, 2020 | 117th | At-large | general | Lisa Blunt Rochester | Democratic | 281,382 | 57.6% | Catherine S. Purcell | Independent Party of Delaware | 6,682 | 1.4% |
| Nov 3, 2020 | 117th | At-large | general | Lisa Blunt Rochester | Democratic | 281,382 | 57.6% | David L. Rogers | Libertarian | 3,814 | 0.8% |
| Nov 8, 2022 | 118th | At-large | general | Lisa Blunt Rochester | Democratic | 178,416 | 55.5% | Lee H. Murphy | Republican | 138,201 | 43.0% |
| Nov 8, 2022 | 118th | At-large | general | Lisa Blunt Rochester | Democratic | 178,416 | 55.5% | Cody McNutt | Libertarian | 3,074 | 1.0% |
| Nov 8, 2022 | 118th | At-large | general | Lisa Blunt Rochester | Democratic | 178,416 | 55.5% | David L. Rogers | Non-Partisan Delaware | 1,958 | 0.6% |
| Nov 5, 2024 | 119th | At-large | general | TBD | TBD | TBD | TBD | Sarah McBride | Democratic | TBD | TBD |
| Nov 5, 2024 | 119th | At-large | general | TBD | TBD | TBD | TBD | John Whalen | Republican | TBD | TBD |