# Louth (Dáil constituency)

Louth is a parliamentary constituency represented in Dáil Éireann, the lower house of the Irish parliament or Oireachtas. The constituency elects five deputies (Teachtaí Dála, commonly known as TDs) on the system of proportional representation by means of the single transferable vote (PR-STV). It covers the entirety of County Louth and a small area of County Meath.

## Boundaries

The constituency was created by the Electoral Act 1923, and first used at the 1923 general election. It currently spans the entire area of County Louth (which includes the towns of Ardee, Dundalk, Drogheda), the smallest county in Ireland, and a part of County Meath including the suburbs of Drogheda.
The Electoral (Amendment) Act 2023 defines the constituency as:
   and, in the county of Meath, the electoral division of:
       St. Mary's (part), in the former Rural District of Meath."

## TDs

Teachtaí Dála (TDs) for Louth 1923– :
| Key to parties  AHB = Anti H-Block  CnaG = Cumann na nGaedheal  FF = Fianna Fáil  FG = Fine Gael  Ind = Independent  Lab = Labour  NL = National League  Rep = Republican  SF = Sinn Féin ||||||||||||
| Dáil | Election | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) |
| 4th | 1923 | | Frank Aiken (Rep) | | Peter Hughes (CnaG) | | James Murphy (CnaG) | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 |
| 5th | 1927 (Jun) | | Frank Aiken (FF) | | James Coburn (NL) | | James Murphy (CnaG) | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 |
| 6th | 1927 (Sep) | | Frank Aiken (FF) | | James Coburn (NL) | | James Murphy (CnaG) | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 |
| 7th | 1932 | | Frank Aiken (FF) | | James Coburn (Ind) | | James Murphy (CnaG) | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 |
| 8th | 1933 | | Frank Aiken (FF) | | James Coburn (Ind) | | James Murphy (CnaG) | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 |
| 9th | 1937 | | Frank Aiken (FF) | | James Coburn (FG) | | Laurence Walsh (FF) | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 |
| 10th | 1938 | | Frank Aiken (FF) | | James Coburn (FG) | | Laurence Walsh (FF) | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 |
| 11th | 1943 | | Frank Aiken (FF) | | James Coburn (FG) | | Roddy Connolly (Lab) | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 |
| 12th | 1944 | | Frank Aiken (FF) | | James Coburn (FG) | | Laurence Walsh (FF) | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 |
| 13th | 1948 | | Frank Aiken (FF) | | James Coburn (FG) | | Roddy Connolly (Lab) | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 |
| 14th | 1951 | | Frank Aiken (FF) | | James Coburn (FG) | | Laurence Walsh (FF) | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 |
| 14th | 1954 by-election | | Frank Aiken (FF) | | George Coburn (FG) | | Laurence Walsh (FF) | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 |
| 15th | 1954 | | Frank Aiken (FF) | | George Coburn (FG) | | Paddy Donegan (FG) | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 |
| 16th | 1957 | | Frank Aiken (FF) | | George Coburn (FG) | | Pádraig Faulkner (FF) | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 |
| 17th | 1961 | | Frank Aiken (FF) | | Paddy Donegan (FG) | | Pádraig Faulkner (FF) | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 |
| 18th | 1965 | | Frank Aiken (FF) | | Paddy Donegan (FG) | | Pádraig Faulkner (FF) | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 |
| 19th | 1969 | | Frank Aiken (FF) | | Paddy Donegan (FG) | | Pádraig Faulkner (FF) | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 |
| 20th | 1973 | | Joseph Farrell (FF) | | Paddy Donegan (FG) | | Pádraig Faulkner (FF) | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 | 3 seats until 1977 |
| 21st | 1977 | | Joseph Farrell (FF) | | Paddy Donegan (FG) | | Pádraig Faulkner (FF) | | Eddie Filgate (FF) | 4 seats 1977–2011 | 4 seats 1977–2011 | 4 seats 1977–2011 | 4 seats 1977–2011 |
| 22nd | 1981 | | Paddy Agnew (AHB) | | Bernard Markey (FG) | | Pádraig Faulkner (FF) | | Eddie Filgate (FF) | 4 seats 1977–2011 | 4 seats 1977–2011 | 4 seats 1977–2011 | 4 seats 1977–2011 |
| 23rd | 1982 (Feb) | | Thomas Bellew (FF) | | Bernard Markey (FG) | | Pádraig Faulkner (FF) | | Eddie Filgate (FF) | 4 seats 1977–2011 | 4 seats 1977–2011 | 4 seats 1977–2011 | 4 seats 1977–2011 |
| 24th | 1982 (Nov) | | Michael Bell (Lab) | | Brendan McGahon (FG) | | Pádraig Faulkner (FF) | | Séamus Kirk (FF) | 4 seats 1977–2011 | 4 seats 1977–2011 | 4 seats 1977–2011 | 4 seats 1977–2011 |
| 25th | 1987 | | Michael Bell (Lab) | | Brendan McGahon (FG) | | Dermot Ahern (FF) | | Séamus Kirk (FF) | 4 seats 1977–2011 | 4 seats 1977–2011 | 4 seats 1977–2011 | 4 seats 1977–2011 |
| 26th | 1989 | | Michael Bell (Lab) | | Brendan McGahon (FG) | | Dermot Ahern (FF) | | Séamus Kirk (FF) | 4 seats 1977–2011 | 4 seats 1977–2011 | 4 seats 1977–2011 | 4 seats 1977–2011 |
| 27th | 1992 | | Michael Bell (Lab) | | Brendan McGahon (FG) | | Dermot Ahern (FF) | | Séamus Kirk (FF) | 4 seats 1977–2011 | 4 seats 1977–2011 | 4 seats 1977–2011 | 4 seats 1977–2011 |
| 28th | 1997 | | Michael Bell (Lab) | | Brendan McGahon (FG) | | Dermot Ahern (FF) | | Séamus Kirk (FF) | 4 seats 1977–2011 | 4 seats 1977–2011 | 4 seats 1977–2011 | 4 seats 1977–2011 |
| 29th | 2002 | | Arthur Morgan (SF) | | Fergus O'Dowd (FG) | | Dermot Ahern (FF) | | Séamus Kirk (FF) | 4 seats 1977–2011 | 4 seats 1977–2011 | 4 seats 1977–2011 | 4 seats 1977–2011 |
| 30th | 2007 | | Arthur Morgan (SF) | | Fergus O'Dowd (FG) | | Dermot Ahern (FF) | | Séamus Kirk (FF) | 4 seats 1977–2011 | 4 seats 1977–2011 | 4 seats 1977–2011 | 4 seats 1977–2011 |
| 31st | 2011 | | Gerry Adams (SF) | | Fergus O'Dowd (FG) | | Ged Nash (Lab) | | Séamus Kirk (FF) | | Peter Fitzpatrick (FG) |
| 32nd | 2016 | | Gerry Adams (SF) | | Fergus O'Dowd (FG) | | Declan Breathnach (FF) | | Imelda Munster (SF) | | Peter Fitzpatrick (FG) |
| 33rd | 2020 | | Ruairí Ó Murchú (SF) | | Fergus O'Dowd (FG) | | Ged Nash (Lab) | | Imelda Munster (SF) | | Peter Fitzpatrick (Ind) |
| 34th | 2024 | | Ruairí Ó Murchú (SF) | | Paula Butterly (FG) | | Ged Nash (Lab) | | Joanna Byrne (SF) | | Erin McGreehan (FF) |
Note: The columns in this table are used only for presentational purposes, and no significance should be attached to the order of columns. For details of the order in which seats were won at each election, see the detailed results of that election.
* ↑ Faulker served as Ceann Comhairle in the 21st Dáil from 1977 to 1981, and was returned automatically at the 1981 election.
* ↑ Kirk served as Ceann Comhairle in the 30th Dáil from 2009 to 2011, and was returned automatically at the 2011 election.

## Electoral division

Louth population as per electoral division, for the Dáil constituency of Louth. This population count includes those within the county of Louth, as well as the electoral divisions of Julianstown, and St. Mary's (part) in the county of Meath, as per the Electoral (Amendment) (Dáil Constituencies) Act 2017.
| Electoral Division | Population – 2006 | Population – 2011 | Population – 2016 |
| Louth | 128600 | 143272 | 150481 |
| Dundalk (Town + Rural), County Louth | 51758 | 56761 | 59557 |
| Dundalk Town, County Louth | 29037 | 31149 | 32288 |
| 004 Dundalk Urban No. 1, County Louth | 2190 | 2148 | 2169 |
| 005 Dundalk Urban No. 2, County Louth | 1211 | 1169 | 1140 |
| 006 Dundalk Urban No. 3, County Louth | 1400 | 1449 | 1710 |
| 007 Dundalk Urban No. 4, County Louth | 6183 | 6039 | 5970 |
| 023 Castletown (Part Urban), County Louth | 2518 | 2637 | 2685 |
| 027 Dundalk Rural (Part Urban), County Louth | 15440 | 17620 | 18514 |
| 030 Haggardstown (Part Urban), County Louth | 95 | 87 | 100 |
| Dundalk rural area, County Louth | 22721 | 25612 | 27269 |
| 019 Ballymascanlan, County Louth | 2016 | 2213 | 2206 |
| 020 Barronstown, County Louth | 647 | 744 | 746 |
| 021 Carlingford, County Louth | 1384 | 1801 | 2201 |
| 022 Castlering, County Louth | 935 | 1012 | 1034 |
| 023 Castletown (Part Rural), County Louth | 1421 | 1573 | 1622 |
| 024 Creggan Upper, County Louth | 684 | 787 | 852 |
| 025 Darver, County Louth | 562 | 568 | 678 |
| 026 Drummullagh, County Louth | 1120 | 1257 | 1350 |
| 027 Dundalk Rural (Part Rural), County Louth | 535 | 540 | 686 |
| 028 Faughart, County Louth | 905 | 991 | 958 |
| 029 Greenore, County Louth | 979 | 1169 | 1201 |
| 030 Haggardstown (Part Rural), County Louth | 5769 | 6303 | 6819 |
| 031 Jenkinstown, County Louth | 948 | 1173 | 1277 |
| 032 Killanny, County Louth | 683 | 799 | 825 |
| 033 Louth, County Louth | 1308 | 1505 | 1575 |
| 034 Mansfieldstown, County Louth | 640 | 807 | 855 |
| 035 Rathcor, County Louth | 1203 | 1352 | 1374 |
| 036 Ravensdale, County Louth | 982 | 1018 | 1010 |
| Drogheda (Town + Rural), County Louth & County Meath | 46306 | 48951 | 51577 |
| 001 Fair Gate, County Louth | 9783 | 9806 | 10317 |
| 002 St. Laurence Gate, County Louth | 3801 | 4004 | 4075 |
| 003 West Gate, County Louth | 5899 | 6042 | 6284 |
| 041 St. Peter's (Part Urban), County Louth | 3460 | 2161 | 2099 |
| 047 St. Mary's (Part Urban), County Louth | 6030 | 6563 | 6696 |
| 045 Julianstown, County Meath | 8289 | 9606 | 10139 |
| 047 St. Mary's (Part Rural), County Meath | 9044 | 10769 | 11967 |
| Ardee No. 1 rural area, County Louth | 17976 | 20262 | 20924 |
| 008 Ardee Rural, County Louth | 2626 | 2875 | 2952 |
| 009 Ardee Urban, County Louth | 4301 | 4554 | 4917 |
| 010 Castlebellingham, County Louth | 1371 | 1617 | 1688 |
| 011 Clonkeen, County Louth | 545 | 648 | 675 |
| 012 Collon, County Louth | 1380 | 1770 | 1859 |
| 013 Dromin, County Louth | 535 | 610 | 629 |
| 014 Dromiskin, County Louth | 1935 | 2187 | 2226 |
| 015 Drumcar, County Louth | 1385 | 1526 | 1451 |
| 016 Dunleer, County Louth | 2340 | 2796 | 2868 |
| 017 Stabannan, County Louth | 590 | 620 | 619 |
| 018 Tallanstown, County Louth | 968 | 1059 | 1040 |
| Louth rural area, County Louth | 12560 | 17298 | 18423 |
| 037 Clogher, County Louth | 2494 | 3031 | 3237 |
| 038 Dysart, County Louth | 777 | 918 | 925 |
| 039 Monasterboice, County Louth | 1164 | 1342 | 1365 |
| 040 Mullary, County Louth | 1528 | 1723 | 1754 |
| 041 St. Peter's (Part Rural), County Louth | 4022 | 6990 | 7605 |
| 042 Termonfeckin, County Louth | 2575 | 3294 | 3537 |

## Elections

^ *: Outgoing TD

### 2024 general election

2024 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| | Sinn Féin | Ruairí Ó Murchú | 13.7 | 8,728 | 8,731 | 8,732 | 8,733 | 8,736 | 8,745 | 8,748 | 8,768 | 8,803 | 8,879 | 8,958 | 9,123 | 9,621 | 9,845 | 10,201 | 13,016 | | | | |
| | Sinn Féin | Joanna Byrne | 12.8 | 8,169 | 8,172 | 8,185 | 8,187 | 8,192 | 8,218 | 8,228 | 8,234 | 8,245 | 8,318 | 8,374 | 8,496 | 8,933 | 9,130 | 9,358 | 9,912 | 11,989 | | | |
| | Labour | Ged Nash | 11.9 | 7,594 | 7,595 | 7,599 | 7,608 | 7,615 | 7,647 | 7,660 | 7,666 | 7,691 | 7,747 | 8,120 | 8,705 | 9,252 | 9,539 | 9,714 | 9,833 | 9,927 | 10,204 | 10,573 | 12,533 |
| | Fianna Fáil | Erin McGreehan | 9.1 | 5,772 | 5,772 | 5,773 | 5,773 | 5,773 | 5,775 | 5,776 | 5,785 | 5,796 | 5,886 | 6,090 | 6,159 | 6,218 | 6,377 | 6,463 | 6,828 | 6,959 | 7,118 | 8,284 | 8,629 |
| | Fine Gael | Paula Butterly | 8.9 | 5,646 | 5,648 | 5,652 | 5,653 | 5,656 | 5,658 | 5,662 | 5,666 | 5,675 | 5,886 | 6,091 | 6,167 | 6,206 | 6,299 | 6,359 | 6,418 | 6,433 | 6,460 | 8,502 | 9,062 |
| | Fianna Fáil | Alison Comyn | 7.7 | 4,913 | 4,914 | 4,918 | 4,921 | 4,923 | 4,930 | 4,931 | 4,936 | 4,945 | 5,029 | 5,119 | 5,176 | 5,196 | 5,335 | 5,391 | 5,416 | 5,426 | 5,458 | 5,686 | 6,412 |
| | Fine Gael | John McGahon | 6.3 | 4,021 | 4,022 | 4,024 | 4,024 | 4,027 | 4,029 | 4,031 | 4,037 | 4,051 | 4,111 | 4,194 | 4,231 | 4,274 | 4,336 | 4,440 | 4,513 | 4,545 | 4,587 | | |
| | Sinn Féin | Antóin Watters | 5.9 | 3,767 | 3,767 | 3,767 | 3,768 | 3,769 | 3,775 | 3,775 | 3,786 | 3,801 | 3,827 | 3,849 | 3,893 | 4,096 | 4,265 | 4,325 | | | | | |
| | Independent | Kevin Callan | 5.1 | 3,223 | 3,231 | 3,268 | 3,273 | 3,276 | 3,295 | 3,305 | 3,320 | 3,339 | 3,604 | 3,676 | 3,770 | 3,883 | 4,181 | 5,197 | 5,258 | 5,292 | 5,500 | 5,682 | |
| | Irish Freedom | Hermann Kelly | 4.0 | 2,546 | 2,549 | 2,552 | 2,575 | 2,612 | 2,612 | 2,635 | 2,695 | 2,731 | 2,829 | 2,842 | 2,856 | 2,907 | 3,608 | | | | | | |
| | Aontú | Michael O'Dowd | 3.7 | 2,330 | 2,331 | 2,334 | 2,336 | 2,359 | 2,367 | 2,392 | 2,410 | 2,452 | 2,519 | 2,540 | 2,581 | 2,657 | | | | | | | |
| | PBP–Solidarity | James Renaghan | 2.6 | 1,671 | 1,671 | 1,672 | 1,674 | 1,677 | 1,685 | 1,689 | 1,708 | 1,740 | 1,764 | 1,855 | 2,278 | | | | | | | | |
| | Social Democrats | Niall McCreanor | 2.4 | 1,547 | 1,548 | 1,550 | 1,551 | 1,555 | 1,560 | 1,560 | 1,563 | 1,580 | 1,614 | 1,783 | | | | | | | | | |
| | Green | Marianne Butler | 2.4 | 1,504 | 1,505 | 1,506 | 1,506 | 1,506 | 1,506 | 1,509 | 1,512 | 1,515 | 1,560 | | | | | | | | | | |
| | Independent | David Brennan | 1.0 | 671 | 672 | 680 | 686 | 689 | 689 | 747 | 773 | 805 | | | | | | | | | | | |
| | Independent | Thomas Clare | 0.6 | 416 | 419 | 426 | 432 | 435 | 442 | 451 | 468 | 482 | | | | | | | | | | | |
| | Independent Ireland | Ryan McKeown | 0.5 | 305 | 306 | 308 | 309 | 319 | 322 | 324 | 354 | | | | | | | | | | | | |
| | Independent | Tracy O'Hanlon | 0.4 | 234 | 235 | 239 | 259 | 270 | 279 | 282 | | | | | | | | | | | | | |
| | Independent | David Bradley | 0.2 | 157 | 158 | 161 | 171 | 176 | 182 | | | | | | | | | | | | | | |
| | Independent | Peter-James Nugent | 0.2 | 149 | 149 | 149 | 157 | 158 | | | | | | | | | | | | | | | |
| | The Irish People | Derek McElearney | 0.2 | 119 | 121 | 121 | 133 | | | | | | | | | | | | | | | | |
| | Independent | Alan Fagan | 0.2 | 114 | 116 | 116 | | | | | | | | | | | | | | | | | |
| | Independent | Albert Byrne | 0.1 | 99 | 100 | | | | | | | | | | | | | | | | | | |
| | Independent | David Carroll | 0.1 | 40 | | | | | | | | | | | | | | | | | | | |
| Electorate: 104,799 Valid: 63,735 Spoilt: 675 Quota: 10,623 Turnout: 61.5% ||||||||||||||||||||||||
* ↑ Renaghan is a member of People Before Profit.

### 2020 general election

2020 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| | Sinn Féin | Imelda Munster | 24.3 | 17,203 | | | | | | | | | |
| | Sinn Féin | Ruairí Ó Murchú | 17.7 | 12,491 | | | | | | | | | |
| | Fine Gael | Fergus O'Dowd | 9.0 | 6,380 | 6,737 | 6,746 | 6,752 | 6,775 | 6,936 | 6,980 | 7,485 | 10,159 | 11,282 |
| | Independent | Peter Fitzpatrick | 8.6 | 6,085 | 6,515 | 6,703 | 6,734 | 6,956 | 7,571 | 8,201 | 8,379 | 8,988 | 10,779 |
| | Labour | Ged Nash | 8.2 | 5,824 | 6,889 | 6,918 | 6,926 | 6,973 | 7,190 | 7,545 | 8,389 | 8,638 | 11,659 |
| | Fianna Fáil | Declan Breathnach | 8.2 | 5,781 | 5,919 | 5,958 | 5,975 | 6,023 | 6,124 | 6,178 | 8,403 | 8,771 | 9,625 |
| | Green | Mark Dearey | 7.7 | 5,418 | 6,113 | 6,263 | 6,290 | 6,436 | 6,680 | 7,675 | 7,917 | 8,497 | |
| | Fine Gael | John McGahon | 6.3 | 4,442 | 4,516 | 4,544 | 4,549 | 4,560 | 4,606 | 4,642 | 4,738 | | |
| | Fianna Fáil | James Byrne | 5.5 | 3,911 | 4,179 | 4,187 | 4,198 | 4,232 | 4,325 | 4,355 | | | |
| | Solidarity–PBP | Audrey Fergus | 1.6 | 1,120 | 2,317 | 2,478 | 2,501 | 2,675 | 3,028 | | | | |
| | Renua | Eamon Sweeney | 1.1 | 794 | 1,067 | 1,083 | 1,092 | 1,163 | | | | | |
| | Irish Freedom | Cathal Ó Murchú | 0.8 | 574 | 1,000 | 1,041 | 1,053 | 1,138 | | | | | |
| | Independent | Topanga Bird | 0.3 | 243 | 474 | 500 | 538 | | | | | | |
| | Independent | David Bradley | 0.4 | 256 | 410 | 417 | 465 | | | | | | |
| | Independent | Albert Byrne | 0.2 | 145 | 262 | 273 | | | | | | | |
| Electorate: 113,128 Valid: 70,667 Spoilt: 757 Quota: 11,778 Turnout: 71,424 (63.1%) ||||||||||||||
* ↑ Fergus was a member of People Before Profit.

### 2016 general election

2016 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
| | Sinn Féin | Gerry Adams | 15.8 | 10,661 | 10,774 | 10,826 | 10,908 | 11,096 | 11,278 | | | | | |
| | Fianna Fáil | Declan Breathnach | 13.5 | 9,099 | 9,146 | 9,220 | 9,609 | 9,931 | 12,192 | | | | | |
| | Sinn Féin | Imelda Munster | 13.1 | 8,829 | 9,061 | 9,103 | 9,224 | 9,356 | 9,563 | 9,712 | 9,995 | 10,992 | 13,029 | |
| | Fine Gael | Fergus O'Dowd | 10.1 | 6,814 | 6,838 | 6,943 | 7,271 | 7,418 | 7,586 | 7,680 | 8,115 | 8,827 | 9,124 | 9,256 |
| | Fine Gael | Peter Fitzpatrick | 9.5 | 6,408 | 6,417 | 6,591 | 6,693 | 6,969 | 7,113 | 7,206 | 7,977 | 8,231 | 8,931 | 9,132 |
| | Labour | Ged Nash | 7.3 | 4,945 | 4,976 | 5,293 | 5,472 | 5,593 | 5,760 | 5,895 | 6,715 | 7,888 | 8,454 | 8,746 |
| | Independent | Kevin Callan | 5.2 | 3,541 | 3,683 | 3,701 | 4,030 | 4,388 | 4,592 | 4,779 | 5,224 | | | |
| | AAA–PBP | Garrett Weldon | 5.1 | 3,462 | 3,644 | 3,690 | 3,816 | 4,468 | 4,586 | 4,675 | 5,588 | 6,290 | | |
| | Fianna Fáil | Emma Coffey | 5.1 | 3,422 | 3,442 | 3,496 | 3,622 | 3,819 | | | | | | |
| | Green | Mark Dearey | 4.7 | 3,187 | 3,225 | 3,363 | 3,530 | 4,099 | 4,327 | 4,517 | | | | |
| | Independent | Maeve Yore | 4.1 | 2,746 | 2,814 | 2,953 | 3,138 | | | | | | | |
| | Renua | Michael O'Dowd | 3.1 | 2,095 | 2,219 | 2,242 | | | | | | | | |
| | Labour | Mary Moran | 1.8 | 1,198 | 1,211 | | | | | | | | | |
| | Direct Democracy | Anthony Connor | 1.0 | 676 | | | | | | | | | | |
| | Independent | David Bradley | 0.5 | 319 | | | | | | | | | | |
| | Direct Democracy | Pat Greene | 0.2 | 127 | | | | | | | | | | |
| Electorate: 104,696 Valid: 67,529 Spoilt: 749 Quota: 11,255 Turnout: 68,278 (65.2%) |||||||||||||||

### 2011 general election

Séamus Kirk was Ceann Comhairle at the dissolution of the 30th Dáil and therefore deemed to be returned automatically. The constituency was treated as a four-seater for the purposes of calculating the quota.
2011 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| | Fianna Fáil | Séamus Kirk | N/A | Returned automatically | Returned automatically | Returned automatically | Returned automatically | Returned automatically | Returned automatically | Returned automatically | Returned automatically | Returned automatically | Returned automatically | Returned automatically | Returned automatically | Returned automatically |
| | Sinn Féin | Gerry Adams | 21.7 | 15,072 | | | | | | | | | | | | |
| | Fine Gael | Fergus O'Dowd | 20.2 | 13,980 | | | | | | | | | | | | |
| | Labour | Ged Nash | 12.6 | 8,718 | 8,942 | 8,948 | 8,984 | 8,998 | 9,037 | 9,098 | 9,404 | 9,821 | 10,480 | 10,658 | 14,620 | |
| | Fine Gael | Peter Fitzpatrick | 11.3 | 7,845 | 7,998 | 8,002 | 8,052 | 8,069 | 8,130 | 8,177 | 8,475 | 8,982 | 9,930 | 10,626 | 11,770 | 12,323 |
| | Fianna Fáil | James Carroll | 8.2 | 5,681 | 5,749 | 5,751 | 5,759 | 5,774 | 5,792 | 5,803 | 5,987 | 6,481 | 6,769 | 10,711 | 11,185 | 11,388 |
| | Fianna Fáil | Declan Breathnach | 7.5 | 5,177 | 5,245 | 5,245 | 5,247 | 5,263 | 5,285 | 5,297 | 5,373 | 5,603 | 6,001 | | | |
| | Labour | Mary Moran | 6.6 | 4,546 | 4,738 | 4,742 | 4,747 | 4,748 | 4,808 | 4,908 | 5,124 | 5,436 | 6,430 | 6,974 | | |
| | Green | Mark Dearey | 4.7 | 3,244 | 3,358 | 3,362 | 3,366 | 3,374 | 3,421 | 3,506 | 3,672 | 3,939 | | | | |
| | New Vision | Thomas Clare | 3.2 | 2,233 | 2,318 | 2,324 | 2,328 | 2,390 | 2,456 | 2,569 | 3,024 | | | | | |
| | Independent | Fred Matthews | 1.4 | 957 | 1,004 | 1,013 | 1,015 | 1,024 | 1,089 | 1,207 | | | | | | |
| | Independent | Frank Godfrey | 0.8 | 649 | 714 | 727 | 731 | 754 | 781 | 829 | | | | | | |
| | Independent | Robin Wilson | 0.8 | 536 | 592 | 597 | 598 | 610 | 692 | | | | | | | |
| | Independent | Luke Martin | 0.3 | 224 | 289 | 293 | 293 | 300 | | | | | | | | |
| | Independent | Gerry Crilly | 0.3 | 222 | 252 | 254 | 254 | 267 | | | | | | | | |
| | Independent | David Bradley | 0.3 | 174 | 211 | 215 | 215 | | | | | | | | | |
| | Independent | Robert Glynn | 0.1 | 61 | 65 | | | | | | | | | | | |
| Electorate: 99,530 Valid: 69,319 Spoilt: 871 (1.2%) Quota: 13,864 Turnout: 70,190 (70.5%) |||||||||||||||||

### 2007 general election

2007 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 |
| | Fianna Fáil | Séamus Kirk | 18.5 | 10,190 | 10,225 | 10,400 | 10,457 | 11,696 | |
| | Fianna Fáil | Dermot Ahern | 18.1 | 9,982 | 10,020 | 10,375 | 10,500 | 11,321 | |
| | Fine Gael | Fergus O'Dowd | 15.2 | 8,387 | 8,421 | 8,738 | 10,208 | 11,036 | |
| | Sinn Féin | Arthur Morgan | 15.0 | 8,274 | 8,385 | 8,596 | 8,836 | 8,989 | 10,556 |
| | Fine Gael | Mairead McGuinness | 9.5 | 5,199 | 5,228 | 6,240 | 6,503 | 6,550 | 8,847 |
| | Green | Mark Dearey | 7.6 | 4,172 | 4,296 | 4,711 | 5,118 | 5,225 | |
| | Fianna Fáil | Frank Maher | 5.5 | 3,009 | 3,031 | 3,045 | 3,287 | | |
| | Labour | Ged Nash | 5.0 | 2,739 | 2,786 | 2,856 | | | |
| | Fine Gael | Jim D'Arcy | 4.7 | 2,573 | 2,596 | | | | |
| | Workers' Party | Peter Short | 0.4 | 193 | | | | | |
| | Fathers Rights | Luke Martin | 0.3 | 169 | | | | | |
| | Independent | Dermot Duke | 0.2 | 127 | | | | | |
| Electorate: 86,007 Valid: 55,014 Spoilt: 592 (1.1%) Quota: 11,003 Turnout: 55,606 (64.7%) ||||||||||

### 2002 general election

2002 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| | Fianna Fáil | Dermot Ahern | 20.2 | 9,603 | | | | | | | |
| | Sinn Féin | Arthur Morgan | 14.9 | 7,121 | 7,275 | 7,488 | 7,495 | 7,805 | 8,474 | 8,992 | 9,477 |
| | Fianna Fáil | Séamus Kirk | 13.6 | 6,495 | 6,561 | 6,768 | 6,811 | 6,993 | 7,644 | 7,960 | 9,987 |
| | Fine Gael | Fergus O'Dowd | 11.6 | 5,505 | 5,540 | 5,686 | 5,688 | 6,098 | 6,346 | 7,740 | 10,175 |
| | Fianna Fáil | Frank Maher | 9.8 | 4,653 | 4,668 | 4,807 | 4,811 | 4,946 | 5,018 | 5,643 | |
| | Fine Gael | Terry Brennan | 8.7 | 4,130 | 4,207 | 4,442 | 4,449 | 4,670 | 5,394 | 6,046 | 6,133 |
| | Labour | Michael Bell | 6.7 | 3,185 | 3,237 | 3,388 | 3,391 | 3,732 | 4,117 | | |
| | Independent | Mary Grehan | 5.0 | 2,384 | 2,496 | 3,021 | 3,030 | 3,521 | | | |
| | Green | Bernadette Martin | 4.2 | 1,979 | 2,109 | 2,306 | 2,309 | | | | |
| | Independent | Martin Bellew | 2.7 | 1,307 | 1,410 | | | | | | |
| | Independent | Frank Godfrey | 1.0 | 473 | 502 | | | | | | |
| | Independent | Aidan Mahon | 0.6 | 294 | | | | | | | |
| | Independent | Liam Ó Gogain | 0.5 | 239 | | | | | | | |
| | Workers' Party | Peter Short | 0.4 | 176 | | | | | | | |
| | Christian Solidarity | Michael Maguire | 0.2 | 79 | | | | | | | |
| Electorate: 81,952 Valid: 47,623 Spoilt: 651 (1.4%) Quota: 9,525 Turnout: 48,274 (58.9%) ||||||||||||

### 1997 general election

1997 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| | Fianna Fáil | Dermot Ahern | 22.6 | 10,192 | | | | | | | | | | | |
| | Fianna Fáil | Séamus Kirk | 12.6 | 5,667 | 6,334 | 6,381 | 6,544 | 6,594 | 6,697 | 6,881 | 8,160 | 9,399 | | | |
| | Labour | Michael Bell | 10.5 | 4,725 | 4,771 | 4,829 | 4,851 | 4,958 | 5,236 | 5,518 | 5,905 | 6,230 | 6,755 | 7,316 | 7,430 |
| | Fine Gael | Fergus O'Dowd | 10.0 | 4,486 | 4,499 | 4,506 | 4,538 | 4,598 | 4,867 | 5,066 | 5,437 | 5,704 | 5,871 | 6,953 | 7,049 |
| | Fine Gael | Brendan McGahon | 9.7 | 4,346 | 4,429 | 4,504 | 4,584 | 4,597 | 4,638 | 4,859 | 4,867 | 5,356 | 5,868 | 8,075 | 8,262 |
| | Fine Gael | Terry Brennan | 8.3 | 3,723 | 3,776 | 3,807 | 3,840 | 3,851 | 3,875 | 4,035 | 4,050 | 4,307 | 4,588 | | |
| | Sinn Féin | Owen Hanratty | 6.1 | 2,760 | 2,816 | 2,890 | 2,934 | 3,426 | 3,465 | 3,602 | 3,658 | 3,813 | | | |
| | Progressive Democrats | Mary Grehan | 5.3 | 2,395 | 2,536 | 2,592 | 2,681 | 2,694 | 2,760 | 3,041 | 3,256 | | | | |
| | Fianna Fáil | Maria O'Brien Campbell | 4.8 | 2,151 | 2,215 | 2,221 | 2,245 | 2,295 | 2,474 | 2,533 | | | | | |
| | Green | Neil McCann | 3.1 | 1,403 | 1,428 | 1,531 | 1,636 | 1,685 | 1,762 | | | | | | |
| | Independent | Frank Godfrey | 2.3 | 1,037 | 1,045 | 1,067 | 1,118 | 1,167 | | | | | | | |
| | Sinn Féin | Maeve Healy | 2.0 | 891 | 899 | 916 | 929 | | | | | | | | |
| | Independent | Michael G. Salter | 1.5 | 686 | 695 | 725 | | | | | | | | | |
| | Independent | Brian Doyle | 1.1 | 475 | 491 | | | | | | | | | | |
| | Independent | Dessie Taaffe | 0.2 | 71 | 72 | | | | | | | | | | |
| Electorate: 71,086 Valid: 45,008 Spoilt: 603 (1.3%) Quota: 9,002 Turnout: 45,611 (64.2%) ||||||||||||||||

### 1992 general election

1992 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| | Labour | Michael Bell | 22.1 | 9,608 | | | | | | | | |
| | Fianna Fáil | Dermot Ahern | 17.7 | 7,704 | 7,766 | 7,788 | 7,810 | 7,826 | 8,003 | 8,271 | 8,707 | |
| | Fine Gael | Brendan McGahon | 15.3 | 6,672 | 6,825 | 6,887 | 6,942 | 6,950 | 7,092 | 7,211 | 7,916 | 8,087 |
| | Fianna Fáil | Séamus Kirk | 15.2 | 6,602 | 6,654 | 6,666 | 6,710 | 6,721 | 6,948 | 7,086 | 7,285 | 9,835 |
| | Fine Gael | Henry Mount Charles | 9.6 | 4,161 | 4,344 | 4,382 | 4,438 | 4,470 | 4,541 | 4,598 | 4,750 | 5,304 |
| | Fianna Fáil | Tommy Murphy | 8.9 | 3,853 | 4,108 | 4,117 | 4,127 | 4,188 | 4,306 | 4,468 | 4,553 | |
| | Independent | Tom Bellew | 3.7 | 1,603 | 1,663 | 1,711 | 1,754 | 1,768 | 1,903 | 2,060 | | |
| | Sinn Féin | Seán Kenna | 3.0 | 1,289 | 1,306 | 1,317 | 1,328 | 1,584 | 1,616 | | | |
| | Independent | Maimie Ahern | 2.3 | 1,017 | 1,045 | 1,065 | 1,100 | 1,112 | | | | |
| | Sinn Féin | Tommy Murtagh | 1.0 | 416 | 440 | 453 | 472 | | | | | |
| | Independent | Dessie Taaffe | 0.7 | 296 | 314 | 354 | | | | | | |
| | Workers' Party | Peter Short | 0.6 | 249 | 310 | | | | | | | |
| Electorate: 65,896 Valid: 43,470 Spoilt: 928 (2.1%) Quota: 8,695 Turnout: 44,398 (67.4%) |||||||||||||

### 1989 general election

1989 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| | Labour | Michael Bell | 19.2 | 8,375 | 8,601 | 9,011 | | | | |
| | Fine Gael | Brendan McGahon | 17.9 | 7,812 | 8,289 | 8,931 | | | | |
| | Fianna Fáil | Séamus Kirk | 15.8 | 6,892 | 6,930 | 7,151 | 7,563 | 8,117 | 8,198 | 8,272 |
| | Fianna Fáil | Jimmy Mulroy | 13.9 | 6,052 | 6,140 | 6,211 | 6,441 | 6,907 | 6,968 | 7,013 |
| | Fianna Fáil | Dermot Ahern | 13.6 | 5,924 | 5,950 | 6,062 | 6,500 | 6,884 | 6,929 | 7,018 |
| | Sinn Féin | Arthur Morgan | 5.3 | 2,291 | 3,042 | 3,712 | 3,901 | | | |
| | Independent | Bernard Markey | 5.1 | 2,217 | 2,324 | 2,379 | | | | |
| | Progressive Democrats | Frank Aiken | 4.9 | 2,146 | 2,293 | | | | | |
| | Fine Gael | Richard Brannigan | 4.0 | 1,744 | | | | | | |
| | Independent | Ronald Smith | 0.4 | 159 | | | | | | |
| Electorate: 63,151 Valid: 43,612 Quota: 8,723 Turnout: 69.1% |||||||||||

### 1987 general election

1987 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| | Fianna Fáil | Séamus Kirk | 15.3 | 7,156 | 7,197 | 7,209 | 7,724 | 8,115 | 8,349 | 11,066 | | |
| | Labour | Michael Bell | 13.3 | 6,205 | 6,465 | 6,842 | 7,154 | 7,440 | 7,628 | 8,923 | 9,048 | 9,191 |
| | Fianna Fáil | Dermot Ahern | 12.4 | 5,822 | 5,876 | 5,884 | 6,314 | 6,952 | 7,031 | 8,580 | 8,622 | 10,128 |
| | Fianna Fáil | Jimmy Mulroy | 11.7 | 5,492 | 5,538 | 5,626 | 5,818 | 5,920 | 5,970 | | | |
| | Fine Gael | Brendan McGahon | 11.4 | 5,319 | 5,378 | 6,035 | 6,255 | 7,019 | 10,037 | | | |
| | Progressive Democrats | Frank Aiken | 11.2 | 5,219 | 5,276 | 5,534 | 5,672 | 6,171 | 6,758 | 6,959 | 7,467 | 7,522 |
| | Fine Gael | Joseph Lennon | 7.6 | 3,560 | 3,579 | 4,105 | 4,186 | 4,282 | | | | |
| | Independent | Thomas Bellew | 5.8 | 2,709 | 2,787 | 2,800 | 3,082 | | | | | |
| | Sinn Féin | Arthur Morgan | 5.6 | 2,599 | 2,682 | 2,692 | | | | | | |
| | Fine Gael | Fergus O'Dowd | 4.2 | 1,941 | 1,964 | | | | | | | |
| | Workers' Party | Donnchadha MacRaghnaill | 1.2 | 570 | | | | | | | | |
| | Independent | Ronald Smith | 0.2 | 86 | | | | | | | | |
| | Independent | Charles Ross | 0.2 | 66 | | | | | | | | |
| | Independent | Barbara Hyland | 0.1 | 65 | | | | | | | | |
| Electorate: 61,991 Valid: 46,809 Quota: 9,362 Turnout: 75.5% |||||||||||||

### November 1982 general election

November 1982 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 |
| | Fianna Fáil | Pádraig Faulkner | 15.6 | 6,793 | 7,033 | 7,264 | 7,419 | 11,288 | |
| | Labour | Michael Bell | 14.7 | 6,435 | 7,241 | 7,431 | 7,629 | 7,812 | 8,451 |
| | Fianna Fáil | Séamus Kirk | 13.9 | 6,066 | 6,126 | 6,750 | 6,869 | 8,791 | |
| | Fianna Fáil | Thomas Bellew | 13.7 | 5,966 | 6,083 | 6,450 | 6,545 | | |
| | Fine Gael | Brendan McGahon | 12.1 | 5,269 | 5,325 | 5,511 | 7,881 | 8,197 | 8,873 |
| | Fine Gael | Bernard Markey | 10.9 | 4,745 | 4,816 | 4,932 | | | |
| | Fine Gael | Thomas Donegan | 10.9 | 4,737 | 4,886 | 4,935 | 6,855 | 7,015 | 7,221 |
| | Independent | Micheal O'Donnell | 4.4 | 1,915 | 2,036 | | | | |
| | Independent | Frank Godfrey | 2.2 | 951 | | | | | |
| | Workers' Party | Donnchadha MacRaghnaill | 1.5 | 671 | | | | | |
| | Independent | Aíne Ní Ghidhir | 0.3 | 129 | | | | | |
| Electorate: 58,556 Valid: 43,677 Quota: 8,736 Turnout: 74.6% ||||||||||

### February 1982 general election

February 1982 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 |
| | Fianna Fáil | Pádraig Faulkner | 18.6 | 8,083 | 8,492 | 9,016 | | | |
| | Fine Gael | Bernard Markey | 18.2 | 7,928 | 8,237 | 8,543 | 8,562 | 10,197 | |
| | Fianna Fáil | Thomas Bellew | 14.5 | 6,305 | 6,427 | 7,143 | 7,219 | 7,961 | 8,050 |
| | Fianna Fáil | Eddie Filgate | 14.1 | 6,109 | 6,204 | 6,862 | 7,055 | 7,391 | 7,428 |
| | Fine Gael | Brendan McGahon | 12.2 | 5,311 | 5,406 | 5,629 | 5,635 | 6,001 | 7,177 |
| | Sinn Féin | Francis Browne | 8.5 | 3,714 | 4,117 | | | | |
| | Labour | Michael Bell | 8.0 | 3,474 | 4,422 | 4,928 | 4,947 | | |
| | Independent | Frank Godfrey | 3.8 | 1,662 | | | | | |
| | Sinn Féin The Workers' Party | Donnchadha Mac Raghnaill | 1.7 | 742 | | | | | |
| | Independent | Helen Corcoran | 0.4 | 183 | | | | | |
| Electorate: 57,075 Valid: 43,511 Spoilt: 451 (1.0%) Quota: 8,703 Turnout: 43,962 (77.0%) ||||||||||

### 1981 general election

Pádraig Faulkner was Ceann Comhairle at the dissolution of the 21st Dáil and therefore deemed to be returned automatically. The constituency was treated as a three-seater for the purposes of calculating the quota.
1981 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| | Fianna Fáil | Pádraig Faulkner | N/A | Returned automatically | Returned automatically | Returned automatically | Returned automatically | Returned automatically | Returned automatically | Returned automatically |
| | Anti H-Block | Paddy Agnew | 18.3 | 8,368 | 8,846 | 8,998 | 9,525 | 9,841 | 10,409 | 10,814 |
| | Fianna Fáil | Eddie Filgate | 12.7 | 5,823 | 5,914 | 7,235 | 7,308 | 7,553 | 11,076 | 11,325 |
| | Fianna Fáil | Thomas Bellew | 11.6 | 5,314 | 5,413 | 5,672 | 5,794 | 6,059 | | |
| | Fianna Fáil | John Connor | 10.7 | 4,920 | 5,276 | 6,047 | 6,791 | 6,812 | 8,190 | 8,829 |
| | Fine Gael | Bernard Markey | 10.3 | 4,694 | 4,810 | 5,007 | 5,258 | 8,316 | 8,513 | 13,315 |
| | Fine Gael | Brendan McGahon | 10.1 | 4,612 | 4,723 | 4,770 | 4,932 | | | |
| | Fine Gael | Dick Branigan | 9.6 | 4,372 | 4,624 | 4,687 | 5,548 | 6,463 | 6,651 | |
| | Fianna Fáil | Nicholas McCabe | 6.1 | 2,804 | 2,887 | | | | | |
| | Labour | Michael Bell | 5.5 | 2,515 | 3,128 | 3,147 | | | | |
| | Independent | Frank Godfrey | 2.6 | 1,210 | | | | | | |
| | Sinn Féin The Workers' Party | Donnchadha Mac Raghnaill | 1.7 | 785 | | | | | | |
| | Labour | James McArdle | 0.8 | 346 | | | | | | |
| Electorate: 57,075 Valid: 45,763 Spoilt: 514 (1.1%) Quota: 11,441 Turnout: 46,277 (81.1%) |||||||||||

### 1977 general election

1977 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| | Fianna Fáil | Pádraig Faulkner | 24.0 | 10,244 | | | | | | | | | |
| | Fine Gael | Paddy Donegan | 22.2 | 9,455 | | | | | | | | | |
| | Fianna Fáil | Eddie Filgate | 14.0 | 5,954 | 6,662 | 6,693 | 6,742 | 6,788 | 6,841 | 7,019 | 7,098 | 7,454 | 8,096 |
| | Fianna Fáil | Joseph Farrell | 12.7 | 5,402 | 6,197 | 6,227 | 6,333 | 6,387 | 6,438 | 6,477 | 6,574 | 6,942 | 7,956 |
| | Independent | Jimmy Bellew | 5.9 | 2,523 | 2,548 | 2,592 | 2,647 | 2,776 | 2,992 | 3,099 | 3,307 | 3,778 | |
| | Sinn Féin The Workers' Party | Donnchadha MacRaghnaill | 4.4 | 1,894 | 1,951 | 1,980 | 2,228 | 2,268 | 2,300 | 2,353 | 2,972 | | |
| | Fine Gael | Bernard Markey | 4.0 | 1,718 | 1,734 | 2,000 | 2,032 | 2,086 | 2,643 | 4,002 | 4,520 | 4,862 | 5,764 |
| | Labour | Fergus O'Dowd | 3.0 | 1,289 | 1,330 | 1,395 | 1,583 | 2,019 | 2,093 | 2,175 | | | |
| | Fine Gael | Hugh McGahon | 2.9 | 1,252 | 1,259 | 1,376 | 1,385 | 1,456 | | | | | |
| | Fine Gael | Joseph Lennon | 2.9 | 1,241 | 1,253 | 1,539 | 1,570 | 1,656 | 2,053 | | | | |
| | Labour | Frank Carney | 2.1 | 908 | 917 | 944 | 959 | | | | | | |
| | Independent | Frank Godfrey | 1.8 | 751 | 798 | 831 | | | | | | | |
| Electorate: 53,895 Valid: 42,631 Quota: 8,527 Turnout: 79.1% ||||||||||||||

### 1973 general election

1973 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| | Fianna Fáil | Pádraig Faulkner | 29.6 | 9,256 | | | | | | |
| | Fine Gael | Paddy Donegan | 21.7 | 6,787 | 6,881 | 6,939 | 6,969 | 7,036 | 7,276 | 7,383 |
| | Fianna Fáil | Joseph Farrell | 21.6 | 6,767 | 7,999 | | | | | |
| | Fine Gael | Brid O'Rourke | 11.3 | 3,532 | 3,558 | 3,575 | 3,587 | 3,672 | 3,856 | 3,877 |
| | Labour | Paul Callan | 8.2 | 2,577 | 2,603 | 2,634 | 2,659 | 2,730 | 3,394 | 3,436 |
| | Sinn Féin (Official) | Donnchadha MacRaghnaill | 4.6 | 1,450 | 1,474 | 1,501 | 1,546 | 1,730 | | |
| | Aontacht Éireann | Míceál O'Donnell | 1.5 | 472 | 482 | 488 | 617 | | | |
| | Aontacht Éireann | James Sarsfield | 0.8 | 263 | 271 | 277 | | | | |
| | Independent | Geoffrey Eager | 0.7 | 210 | 217 | | | | | |
| Electorate: 40,278 Valid: 31,314 Quota: 7,829 Turnout: 77.7% |||||||||||

### 1969 general election

1969 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 |
| | Fine Gael | Paddy Donegan | 28.5 | 8,618 | | | | |
| | Fianna Fáil | Frank Aiken | 24.2 | 7,312 | 7,330 | 7,357 | 7,429 | 7,653 |
| | Fianna Fáil | Pádraig Faulkner | 22.7 | 6,883 | 6,972 | 7,017 | 7,136 | 7,741 |
| | Labour | Paul Callan | 9.2 | 2,800 | 2,863 | 3,753 | 3,929 | |
| | Fine Gael | Thomas Elmore | 6.8 | 2,073 | 2,687 | 2,727 | 4,027 | 5,262 |
| | Fine Gael | Francis Johnston | 5.0 | 1,513 | 1,757 | 1,812 | | |
| | Labour | Patrick Mulholland | 3.6 | 1,077 | 1,097 | | | |
| Electorate: 38,370 Valid: 30,276 Quota: 7,570 Turnout: 78.9% |||||||||

### 1965 general election

1965 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 |
| | Fine Gael | Paddy Donegan | 24.4 | 6,897 | 8,039 |
| | Fianna Fáil | Frank Aiken | 23.6 | 6,679 | 6,972 |
| | Fianna Fáil | Pádraig Faulkner | 23.4 | 6,617 | 7,132 |
| | Fine Gael | Patrick O'Hare | 16.3 | 4,605 | 5,653 |
| | Labour | Proinsias Mac Aonghusa | 12.3 | 3,461 | |
| Electorate: 36,629 Valid: 28,259 Quota: 7,065 Turnout: 77.2% ||||||

### 1961 general election

1961 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 |
| | Fianna Fáil | Frank Aiken | 26.9 | 6,869 | | | | |
| | Fine Gael | Paddy Donegan | 25.5 | 6,518 | | | | |
| | Fianna Fáil | Pádraig Faulkner | 16.8 | 4,288 | 4,726 | 4,737 | 4,934 | 5,972 |
| | Fine Gael | Patrick O'Hare | 15.7 | 4,003 | 4,026 | 4,127 | 4,315 | 5,037 |
| | Independent | Peter Moore | 10.8 | 2,749 | 2,759 | 2,772 | 3,220 | |
| | Sinn Féin | Larry Grogan | 4.4 | 1,130 | 1,138 | 1,141 | | |
| Electorate: 36,850 Valid: 25,557 Quota: 6,390 Turnout: 69.4% |||||||||

### 1957 general election

1957 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 |
| | Fianna Fáil | Frank Aiken | 25.2 | 7,972 | | | |
| | Fine Gael | George Coburn | 21.3 | 6,745 | 6,750 | 7,109 | 7,728 |
| | Fianna Fáil | Pádraig Faulkner | 21.1 | 6,672 | 6,720 | 6,897 | 7,781 |
| | Fine Gael | Paddy Donegan | 18.5 | 5,855 | 5,857 | 6,356 | 6,804 |
| | Sinn Féin | Larry Grogan | 9.4 | 2,991 | 2,992 | 3,305 | |
| | Labour | James Murphy | 4.5 | 1,424 | 1,425 | | |
| Electorate: 41,814 Valid: 31,659 Quota: 7,915 Turnout: 75.7% ||||||||

### 1954 general election

1954 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 |
| | Fine Gael | George Coburn | 31.9 | 10,778 | | | | |
| | Fianna Fáil | Frank Aiken | 26.0 | 8,769 | | | | |
| | Fianna Fáil | Laurence Walsh | 17.6 | 5,945 | 5,999 | 6,308 | 6,483 | 6,957 |
| | Fine Gael | Paddy Donegan | 13.8 | 4,665 | 6,576 | 6,580 | 6,764 | 8,639 |
| | Labour | Roddy Connolly | 7.6 | 2,576 | 2,895 | 2,903 | 3,366 | |
| | Sinn Féin | Joseph Campbell | 3.0 | 1,011 | 1,068 | 1,079 | | |
| Electorate: 41,906 Valid: 33,744 Quota: 8,437 Turnout: 80.5% |||||||||

### 1954 by-election

Fine Gael TD James Coburn died on 5 December 1963. A by-election was held to fill the vacancy on 3 March 1954. The seat was won by the Fine Gael candidate George Coburn, son of the deceased TD.
1954 by-election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 |
| | Fine Gael | George Coburn | 43.4 | 13,360 | 13,817 | 16,459 |
| | Fianna Fáil | Pádraig Faulkner | 40.7 | 12,531 | 12,801 | 13,432 |
| | Labour | Roddy Connolly | 11.2 | 3,452 | 3,952 | |
| | Sinn Féin | Joseph Campbell | 4.7 | 1,446 | | |
| Electorate: 41,975 Valid: 30,789 Quota: 15,395 Turnout: 73.4% |||||||

### 1951 general election

1951 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 |
| | Fianna Fáil | Frank Aiken | 24.9 | 7,927 | 7,981 |
| | Fianna Fáil | Laurence Walsh | 24.5 | 7,792 | 8,009 |
| | Fine Gael | James Coburn | 21.3 | 6,779 | 9,984 |
| | Labour | Roddy Connolly | 15.2 | 4,856 | 5,845 |
| | Fine Gael | Thomas Francis Roe | 14.1 | 4,505 | |
| Electorate: 41,646 Valid: 31,859 Quota: 7,965 Turnout: 76.5% ||||||

### 1948 general election

1948 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 |
| | Fianna Fáil | Frank Aiken | 28.0 | 8,589 | | | | |
| | Fine Gael | James Coburn | 23.6 | 7,251 | 7,342 | 7,368 | 7,716 | |
| | Fianna Fáil | Laurence Walsh | 16.6 | 5,107 | 5,867 | 5,912 | 6,012 | 6,724 |
| | Fine Gael | Thomas F. Roe | 12.5 | 3,854 | 3,862 | 3,955 | 4,198 | |
| | Labour | Roddy Connolly | 12.3 | 3,767 | 3,802 | 3,912 | 4,818 | 6,879 |
| | Clann na Poblachta | Aodh De Blacam | 4.4 | 1,348 | 1,356 | 1,886 | | |
| | Clann na Poblachta | George Owens | 2.7 | 814 | 818 | | | |
| Electorate: 40,740 Valid: 30,730 Quota: 7,683 Turnout: 75.4% |||||||||

### 1944 general election

1944 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 |
| | Fianna Fáil | Frank Aiken | 25.6 | 7,493 | | | | |
| | Fine Gael | James Coburn | 22.8 | 6,672 | 6,690 | 6,808 | 8,310 | |
| | Fianna Fáil | Laurence Walsh | 20.5 | 5,996 | 6,145 | 6,359 | 6,920 | 7,105 |
| | Clann na Talmhan | Frank Jeffers | 17.1 | 5,000 | 5,005 | 5,138 | 6,009 | 6,725 |
| | Labour | Roddy Connolly | 11.2 | 3,287 | 3,295 | 3,559 | | |
| | Ailtirí na hAiséirghe | Eoin Ó Coigligh | 2.7 | 795 | 797 | | | |
| Electorate: 39,506 Valid: 29,243 Quota: 7,311 Turnout: 74.0% |||||||||

### 1943 general election

1943 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 |
| | Fianna Fáil | Frank Aiken | 28.2 | 8,723 | | | | | |
| | Fine Gael | James Coburn | 22.7 | 7,005 | 7,072 | 7,123 | 9,035 | | |
| | Labour | Roddy Connolly | 15.8 | 4,880 | 4,932 | 5,190 | 5,609 | 6,252 | 7,527 |
| | Clann na Talmhan | Frank Jeffers | 12.0 | 3,698 | 3,719 | 3,764 | 4,005 | 4,608 | 5,071 |
| | Fianna Fáil | Laurence Walsh | 10.7 | 3,318 | 4,118 | 4,261 | 4,392 | 4,454 | |
| | Fine Gael | John Callan | 8.7 | 2,698 | 2,744 | 2,783 | | | |
| | Ailtirí na hAiséirghe | Eoin Ó Coigligh | 1.9 | 585 | 595 | | | | |
| Electorate: 39,506 Valid: 30,907 Quota: 7,727 Turnout: 78.2% ||||||||||

### 1938 general election

1938 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 |
| | Fianna Fáil | Frank Aiken | 31.8 | 9,787 | |
| | Fine Gael | James Coburn | 27.2 | 8,375 | |
| | Fianna Fáil | Laurence Walsh | 20.1 | 6,200 | 8,137 |
| | Fine Gael | Patrick Roe | 14.1 | 4,353 | 4,398 |
| | Labour | Michael O'Connor | 4.4 | 1,351 | 1,414 |
| | Labour | Anthony Flynn | 2.4 | 740 | 780 |
| Electorate: 38,665 Valid: 30,806 Quota: 7,702 Turnout: 79.7% ||||||

### 1937 general election

1937 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 |
| | Fianna Fáil | Frank Aiken | 31.0 | 9,215 | |
| | Fine Gael | James Coburn | 28.2 | 8,364 | |
| | Fianna Fáil | Laurence Walsh | 22.8 | 6,768 | 8,449 |
| | Fine Gael | James Murphy | 18.0 | 5,341 | 5,452 |
| Electorate: 38,570 Valid: 29,688 Quota: 7,423 Turnout: 77.0% ||||||

### 1933 general election

1933 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 |
| | Fianna Fáil | Frank Aiken | 34.9 | 10,235 | |
| | Cumann na nGaedheal | James Murphy | 26.0 | 7,632 | |
| | Independent | James Coburn | 24.8 | 7,282 | 7,484 |
| | Fianna Fáil | John O'Dowd | 14.2 | 4,175 | 6,876 |
| Electorate: 36,803 Valid: 29,324 Quota: 7,332 Turnout: 79.7% ||||||

### 1932 general election

1932 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 |
| | Fianna Fáil | Frank Aiken | 26.3 | 7,267 | | | |
| | Cumann na nGaedheal | James Murphy | 22.0 | 6,094 | 6,101 | 6,824 | 7,094 |
| | Independent | James Coburn | 20.2 | 5,594 | 5,606 | 6,135 | 6,501 |
| | Cumann na nGaedheal | Peter Hughes | 16.3 | 4,512 | 4,523 | 4,804 | 5,035 |
| | Labour | David Blood | 7.9 | 2,192 | 2,235 | | |
| | Fianna Fáil | Kevin O'Reilly | 7.3 | 2,019 | 2,293 | 2,823 | |
| Electorate: 36,260 Valid: 27,678 Quota: 6,920 Turnout: 76.3% ||||||||

### September 1927 general election

September 1927 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 |
| | Fianna Fáil | Frank Aiken | 29.6 | 7,881 | | |
| | Cumann na nGaedheal | James Murphy | 24.2 | 6,425 | 6,444 | 6,533 |
| | Cumann na nGaedheal | Peter Hughes | 22.1 | 5,886 | 5,937 | 6,010 |
| | National League | James Coburn | 21.3 | 5,666 | 5,931 | 7,034 |
| | Fianna Fáil | Laurence McKenna | 2.8 | 733 | 1,631 | |
| Electorate: 36,703 Valid: 26,591 Quota: 6,648 Turnout: 72.5% |||||||

### June 1927 general election

June 1927 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| | National League | James Coburn | 26.4 | 7,093 | | | | | | |
| | Fianna Fáil | Frank Aiken | 25.5 | 6,851 | | | | | | |
| | Cumann na nGaedheal | Peter Hughes | 14.4 | 3,886 | 4,002 | 4,007 | 4,037 | 4,203 | 4,489 | 4,956 |
| | Cumann na nGaedheal | James Murphy | 14.1 | 3,787 | 3,843 | 3,845 | 3,906 | 3,966 | 4,391 | 5,177 |
| | Labour | Michael Connor | 6.9 | 1,867 | 1,926 | 1,931 | 2,164 | 2,716 | 3,356 | |
| | Independent | Matthew Campbell | 6.5 | 1,738 | 1,797 | 1,806 | 1,906 | 2,037 | | |
| | Labour | Thomas O'Hanlon | 3.5 | 930 | 986 | 992 | 1,074 | | | |
| | Fianna Fáil | Laurence McKenna | 2.8 | 748 | 769 | 867 | | | | |
| Electorate: 36,703 Valid: 26,900 Quota: 6,726 Turnout: 73.3% |||||||||||

### 1923 general election

1923 general election: Louth :
| Party | Party | Candidate | FPv% | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 |
| | Republican | Frank Aiken | 27.1 | 6,651 | | |
| | Cumann na nGaedheal | Peter Hughes | 23.7 | 5,798 | 5,836 | 6,302 |
| | Cumann na nGaedheal | James Murphy | 23.1 | 5,663 | 5,677 | 6,751 |
| | Farmers' Party | Patrick McGee | 15.8 | 3,877 | 4,021 | 4,784 |
| | Labour | Cathal O'Shannon | 10.3 | 2,517 | 2,845 | |
| Electorate: 38,548 Valid: 24,506 Quota: 6,127 Turnout: 63.6% |||||||