# Donegal (Dáil constituency)

Donegal is a parliamentary constituency which has been represented in Dáil Éireann, the lower house of the Irish parliament or Oireachtas, since the 2016 general election. 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 County Donegal with the exception of nine southern electoral divisions which are part of the neighbouring Sligo–Leitrim constituency.

## History and boundaries
### 1921 to 1937

The constituency was created in 1921 by the Government of Ireland Act 1920 as a 6-seat constituency for the Southern Ireland House of Commons and a two-seat constituency for the United Kingdom House of Commons at Westminster, taking in the whole of County Donegal in north-west Ireland, succeeding the former Westminster constituencies of East Donegal, North Donegal, South Donegal and West Donegal. At the 1921 election for the Southern Ireland House of Commons, the six seats were won uncontested by Sinn Féin, who treated it as part of the election to the Second Dáil. It was never used as a Westminster constituency; under s. 1(4) of the Irish Free State (Agreement) Act 1922, no writ was to be issued "for a constituency in Ireland other than a constituency in Northern Ireland". Therefore, no vote was held in County Dublin at the 1922 United Kingdom general election on 15 November 1922, shortly before the Irish Free State left the United Kingdom on 6 December 1922.
Under the Electoral Act 1923, the constituency's boundaries remained unchanged, and were defined as "the administrative county of Donegal". However, its representation was increased from 6 to 8 seats. It was abolished by the Electoral (Revision of Constituencies) Act 1935, with effect from the 1937 general election. It was replaced by two new constituencies: the 4-seat Donegal East and the 3-seat Donegal West.

### 1977 to 1981

A Donegal constituency was re-established as a 5-seat constituency under the Electoral (Amendment) Act 1974, and used at the 1977 general election only. The revived constituency was short-lived, as under the Electoral (Amendment) Act 1980, it was replaced by two new 3-seat constituencies, Donegal North-East and Donegal South-West.

### Since 2016

In 2012 the Constituency Commission proposed that at the next general election, the constituencies of Donegal North-East and Donegal South-West should be replaced by a new constituency called Donegal. The report proposed changes to the constituencies of Ireland so as to reduce the total number of TDs from 166 to 158. The Donegal constituency was re-established by the Electoral (Amendment) (Dáil Constituencies) Act 2013, with effect from the 2016 general election.
The Electoral (Amendment) (Dáil Constituencies) Act 2017 defines the constituency as:
The area of the county of Donegal within the Sligo–Leitrim constituency is:
       Ballintra, Ballyshannon Rural, Ballyshannon Urban, Bundoran Rural, Carrickboy, Cavangarden, Cliff, in the former Rural District of Ballyshannon;
       Ballintra in the former Rural District of Donegal;
       and Bundoran Urban"
The Constituency Review Report 2023 of the Electoral Commission recommended that no change be made at the next general election.

## TDs
### TDs 1921–1937

Teachtaí Dála (TDs) for Donegal 1921–1937 :
| Key to parties  CnaG = Cumann na nGaedheal  FF = Fianna Fáil  FG = Fine Gael  FP = Farmers' Party  Ind = Independent  Lab = Labour  NL = National League  NCP = National Centre Party  Rep = Republican  SF = Sinn Féin  AT-SF = Sinn Féin (Anti-Treaty)  PT-SF = Sinn Féin (Pro-Treaty) ||||||||||||||||||
| Dáil | Election | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) |
| 2nd | 1921 | | Joseph O'Doherty (SF) | | Samuel O'Flaherty (SF) | | Patrick McGoldrick (SF) | | Joseph McGinley (SF) | | Joseph Sweeney (SF) | | Peter Ward (SF) | 6 seats 1921–1923 | 6 seats 1921–1923 | 6 seats 1921–1923 | 6 seats 1921–1923 |
| 3rd | 1922 | | Joseph O'Doherty (AT-SF) | | Samuel O'Flaherty (AT-SF) | | Patrick McGoldrick (PT-SF) | | Joseph McGinley (PT-SF) | | Joseph Sweeney (PT-SF) | | Peter Ward (PT-SF) | 6 seats 1921–1923 | 6 seats 1921–1923 | 6 seats 1921–1923 | 6 seats 1921–1923 |
| 4th | 1923 | | Joseph O'Doherty (Rep) | | Peadar O'Donnell (Rep) | | Patrick McGoldrick (CnaG) | | Eugene Doherty (CnaG) | | Patrick McFadden (CnaG) | | Peter Ward (CnaG) | | James Myles (Ind) | | John White (FP) |
| 4th | 1924 by-election | | Joseph O'Doherty (Rep) | | Peadar O'Donnell (Rep) | | Patrick McGoldrick (CnaG) | | Eugene Doherty (CnaG) | | Patrick McFadden (CnaG) | | Denis McCullough (CnaG) | | James Myles (Ind) | | John White (FP) |
| 5th | 1927 (Jun) | | Frank Carney (FF) | | Neal Blaney (FF) | | Daniel McMenamin (NL) | | Eugene Doherty (CnaG) | | Michael Óg McFadden (CnaG) | | Hugh Law (CnaG) | | James Myles (Ind) | | John White (FP) |
| 6th | 1927 (Sep) | | Frank Carney (FF) | | Neal Blaney (FF) | | Archie Cassidy (Lab) | | Eugene Doherty (CnaG) | | Michael Óg McFadden (CnaG) | | Hugh Law (CnaG) | | James Myles (Ind) | | John White (FP) |
| 7th | 1932 | | Frank Carney (FF) | | Neal Blaney (FF) | | Brian Brady (FF) | | Eugene Doherty (CnaG) | | Daniel McMenamin (CnaG) | | James Dillon (Ind) | | James Myles (Ind) | | John White (CnaG) |
| 8th | 1933 | | Joseph O'Doherty (FF) | | Neal Blaney (FF) | | Brian Brady (FF) | | Hugh Doherty (FF) | | Daniel McMenamin (CnaG) | | James Dillon (NCP) | | James Myles (Ind) | | Michael Óg McFadden (CnaG) |
| 9th | 1937 | Constituency abolished. See Donegal East and Donegal West | Constituency abolished. See Donegal East and Donegal West | Constituency abolished. See Donegal East and Donegal West | Constituency abolished. See Donegal East and Donegal West | Constituency abolished. See Donegal East and Donegal West | Constituency abolished. See Donegal East and Donegal West | Constituency abolished. See Donegal East and Donegal West | Constituency abolished. See Donegal East and Donegal West | Constituency abolished. See Donegal East and Donegal West | Constituency abolished. See Donegal East and Donegal West | Constituency abolished. See Donegal East and Donegal West | Constituency abolished. See Donegal East and Donegal West | Constituency abolished. See Donegal East and Donegal West | Constituency abolished. See Donegal East and Donegal West | Constituency abolished. See Donegal East and Donegal West | Constituency abolished. See Donegal East and Donegal West |
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.

### TDs 1977–1981

Teachtaí Dála (TDs) for Donegal 1977–1981 :
| Key to parties  FF = Fianna Fáil  FG = Fine Gael  IFF = Independent Fianna Fáil ||||||||||||
| Dáil | Election | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) | Deputy (Party) |
| 21st | 1977 | | Hugh Conaghan (FF) | | Joseph Brennan (FF) | | Neil Blaney (IFF) | | James White (FG) | | Paddy Harte (FG) |
| 21st | 1980 by-election | | Hugh Conaghan (FF) | | Clement Coughlan (FF) | | Neil Blaney (IFF) | | James White (FG) | | Paddy Harte (FG) |
| 22nd | 1981 | Constituency abolished. See Donegal North-East and Donegal South-West | Constituency abolished. See Donegal North-East and Donegal South-West | Constituency abolished. See Donegal North-East and Donegal South-West | Constituency abolished. See Donegal North-East and Donegal South-West | Constituency abolished. See Donegal North-East and Donegal South-West | Constituency abolished. See Donegal North-East and Donegal South-West | Constituency abolished. See Donegal North-East and Donegal South-West | Constituency abolished. See Donegal North-East and Donegal South-West | Constituency abolished. See Donegal North-East and Donegal South-West | Constituency abolished. See Donegal North-East and Donegal South-West |
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.

### TDs since 2016

Teachtaí Dála (TDs) for Donegal 2016– :
| Key to parties  100%R = 100% Redress  FF = Fianna Fáil  FG = Fine Gael  Ind = Independent  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) |
| 32nd | 2016 | | Pearse Doherty (SF) | | Pat "the Cope" Gallagher (FF) | | Thomas Pringle (Ind) | | Charlie McConalogue (FF) | | Joe McHugh (FG) |
| 33rd | 2020 | | Pearse Doherty (SF) | | Pádraig Mac Lochlainn (SF) | | Thomas Pringle (Ind) | | Charlie McConalogue (FF) | | Joe McHugh (FG) |
| 34th | 2024 | | Pearse Doherty (SF) | | Pádraig Mac Lochlainn (SF) | | Charles Ward (100%R) | | Charlie McConalogue (FF) | | Pat "the Cope" Gallagher (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.

## Elections

^ *: Outgoing TD

### 2024 general election

2024 general election: Donegal :
| Party | Party | Candidate | FPv% | 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 |
| | Sinn Féin | Pearse Doherty | 24.7 | 18,898 | | | | | | | | | | | | | | | |
| | Fianna Fáil | Pat "the Cope" Gallagher | 13.1 | 10,024 | 10,504 | 10,517 | 10,528 | 10,604 | 10,636 | 10,667 | 10,675 | 10,680 | 10,798 | 10,922 | 11,294 | 11,751 | 12,310 | 13,660 | |
| | Sinn Féin | Pádraig Mac Lochlainn | 12.8 | 9,799 | 13,095 | | | | | | | | | | | | | |
| | Fianna Fáil | Charlie McConalogue | 10.5 | 8,019 | 8,127 | 8,137 | 8,149 | 8,233 | 8,261 | 8,310 | 8,315 | 8,338 | 8,470 | 8,531 | 8,771 | 9,029 | 9,172 | 11,019 | 11,683 |
| | 100% Redress | Charles Ward | 9.0 | 6,862 | 7,236 | 7,268 | 7,283 | 7,300 | 7,378 | 7,469 | 7,522 | 7,632 | 7,868 | 8,466 | 9,784 | 9,909 | 10,855 | 11,629 | 11,714 |
| | Independent | Thomas Pringle | 6.9 | 5,289 | 5,664 | 5,691 | 5,693 | 5,708 | 5,740 | 5,776 | 5,798 | 5,825 | 6,179 | 6,457 | 6,795 | 7,366 | 9,513 | 10,255 | 10,395 |
| | Fine Gael | Nikki Bradley | 4.8 | 3,658 | 3,719 | 3,722 | 3,729 | 3,761 | 3,782 | 3,818 | 3,823 | 3,830 | 4,080 | 4,134 | 4,280 | 6,001 | 6,176 | | |
| | Sinn Féin | Noel Jordan | 4.3 | 3,321 | 4,405 | 4,620 | 4,623 | 4,638 | 4,673 | 4,695 | 4,709 | 4,733 | 5,013 | 5,155 | 5,339 | 5,513 | | | |
| | Fine Gael | John McNulty | 4.2 | 3,247 | 3,276 | 3,277 | 3,283 | 3,293 | 3,293 | 3,297 | 3,302 | 3,306 | 3,349 | 3,379 | 3,434 | | | | |
| | Aontú | Mary T. Sweeney | 3.2 | 2,469 | 2,530 | 2,534 | 2,550 | 2,561 | 2,589 | 2,637 | 2,685 | 2,808 | 2,883 | 3,376 | | | | | |
| | Independent | Niall McConnell | 2.0 | 1,565 | 1,661 | 1,667 | 1,705 | 1,708 | 1,728 | 1,751 | 1,910 | 2,156 | 2,185 | | | | | | |
| | Green | Nuala Carr | 1.1 | 880 | 903 | 904 | 905 | 913 | 917 | 930 | 930 | 931 | | | | | | | |
| | PBP–Solidarity | Carol Gallagher | 0.8 | 606 | 669 | 674 | 684 | 688 | 691 | 692 | 699 | 707 | | | | | | | |
| | The Irish People | Kim McMenamin | 0.7 | 531 | 542 | 544 | 545 | 547 | 550 | 554 | 621 | | | | | | | | |
| | Irish Freedom | Eamon McGee | 0.5 | 383 | 399 | 400 | 408 | 409 | 417 | 422 | | | | | | | | | |
| | Independent | Gerry McKeever | 0.4 | 342 | 354 | 355 | 359 | 359 | 378 | | | | | | | | | | |
| | Independent | Frank O'Donnell | 0.4 | 313 | 328 | 330 | 336 | 337 | | | | | | | | | | | |
| | Fianna Fáil | Claudia Kennedy | 0.4 | 273 | 290 | 291 | 292 | | | | | | | | | | | | |
| | Independent | Vincent J. Bradley | 0.1 | 111 | 116 | 116 | | | | | | | | | | | | | |
| | Independent | Arthur McGuinness | 0.1 | 34 | 35 | 35 | | | | | | | | | | | | | |
| Electorate: 131,306 Valid: 76,624 Spoilt: 697 Quota: 12,771 Turnout: 58.9% ||||||||||||||||||||
* ↑ Gallagher is a member of People Before Profit.

### 2020 general election

2020 general election: Donegal :
| 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 |
| | Sinn Féin | Pearse Doherty | 27.2 | 21,044 | | | | | | | | |
| | Sinn Féin | Pádraig Mac Lochlainn | 17.9 | 13,891 | | | | | | | | |
| | Fianna Fáil | Charlie McConalogue | 10.8 | 8,347 | 8,871 | 9,022 | 9,078 | 9,425 | 9,633 | 10,054 | 10,270 | 11,432 |
| | Fine Gael | Joe McHugh | 9.8 | 7,621 | 8,093 | 8,129 | 8,170 | 8,309 | 8,740 | 8,988 | 10,920 | 12,104 |
| | Fianna Fáil | Pat "the Cope" Gallagher | 9.6 | 7,469 | 8,661 | 8,688 | 8,729 | 8,905 | 9,035 | 9,518 | 10,146 | 11,074 |
| | Independent | Thomas Pringle | 7.1 | 5,472 | 8,270 | 8,521 | 8,621 | 8,947 | 9,637 | 10,241 | 10,755 | 12,245 |
| | Independent | John O'Donnell | 6.1 | 4,735 | 5,620 | 5,780 | 5,891 | 6,168 | 6,294 | 6,956 | 7,106 | |
| | Fine Gael | Martin Harley | 3.9 | 3,056 | 3,491 | 3,502 | 3,526 | 3,650 | 3,771 | 3,896 | | |
| | Aontú | Mary T. Sweeney | 3.1 | 2,382 | 2,827 | 2,907 | 3,128 | 3,349 | 3,600 | | | |
| | Green | Michael White | 2.1 | 1,656 | 2,113 | 2,194 | 2,220 | 2,339 | | | | |
| | Independent | Peter Casey | 1.5 | 1,143 | 1,804 | 1,950 | 2,132 | | | | | |
| | Independent | Niall McConnell | 0.7 | 580 | 803 | 832 | | | | | | |
| | Independent | Arthur McGuinness | 0.1 | 56 | 99 | 109 | | | | | | |
| Electorate: 125,911 Valid: 77,452 Spoilt: 647 Quota: 12,909 Turnout: 78,099 (62.0%) |||||||||||||

### 2016 general election

2016 general election: Donegal :
| 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 | Charlie McConalogue | 17.1 | 12,533 | | | | | | | | | | | | |
| | Sinn Féin | Pearse Doherty | 14.1 | 10,300 | 10,305 | 10,330 | 10,524 | 10,870 | 11,053 | 11,190 | 14,600 | | | | | |
| | Fianna Fáil | Pat "the Cope" Gallagher | 13.9 | 10,198 | 10,203 | 10,362 | 10,504 | 10,694 | 10,941 | 11,160 | 11,267 | 11,398 | 11,832 | 13,138 | | |
| | Fine Gael | Joe McHugh | 11.5 | 8,412 | 8,414 | 8,443 | 8,704 | 8,795 | 8,965 | 11,016 | 11,040 | 11,061 | 11,784 | 12,469 | | |
| | Independent | Thomas Pringle | 8.5 | 6,220 | 6,239 | 6,247 | 6,498 | 6,689 | 7,389 | 7,522 | 7,617 | 7,722 | 8,491 | 9,462 | 9,888 | 10,082 |
| | Sinn Féin | Pádraig Mac Lochlainn | 7.8 | 5,742 | 5,743 | 5,773 | 5,893 | 5,961 | 6,008 | 6,032 | 6,567 | 8,509 | 9,143 | 9,716 | 9,852 | 9,898 |
| | Sinn Féin | Gary Doherty | 5.6 | 4,136 | 4,138 | 4,142 | 4,183 | 4,377 | 4,420 | 4,456 | | | | | | |
| | Independent | Dessie Shiels | 5.1 | 3,724 | 3,724 | 3,739 | 3,986 | 4,166 | 4,288 | 4,463 | 4,497 | 4,540 | | | | |
| | Independent | Tim Jackson | 4.9 | 3,580 | 3,585 | 3,601 | 3,752 | 4,034 | 4,319 | 4,524 | 4,650 | 4,790 | 5,864 | | | |
| | Fine Gael | Paddy Harte Jnr | 3.9 | 2,831 | 2,832 | 2,838 | 2,934 | 3,133 | 3,244 | | | | | | | |
| | Independent | Frank McBrearty Jnr | 2.6 | 1,914 | 1,917 | 1,921 | 1,981 | | | | | | | | | |
| | Independent | Niamh Kennedy | 2.5 | 1,836 | 1,842 | 1,848 | 1,983 | 2,057 | | | | | | | | |
| | Independent | Ian McGarvey | 1.3 | 982 | 982 | 989 | | | | | | | | | | |
| | Green | Paula Flanagan | 0.6 | 428 | 442 | 443 | | | | | | | | | | |
| | Independent | Michael Mooney | 0.5 | 397 | 402 | 407 | | | | | | | | | | |
| | Fís Nua | Cordelia Nic Fhearraigh | 0.1 | 70 | | | | | | | | | | | | |
| Electorate: 117,675 Valid: 73,303 Spoilt: 654 Quota: 12,218 Turnout: 73,957 (62.9%) |||||||||||||||||

### 1980 by-election

A by-election was held on 6 November 1980 to fill the vacancy caused by the death on 13 July 1980 of the Fianna Fáil TD Joseph Brennan. It was won by the Fianna Fáil candidate Clement Coughlan, who died in a road accident in early 1983, triggering a by-election in the Donegal South-West constituency.
1980 by-election: Donegal :
| Party | Party | Candidate | FPv% | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 |
| | Fianna Fáil | Clement Coughlan | 39.0 | 23,456 | 24,000 | 29,219 |
| | Fine Gael | Dinny McGinley | 33.3 | 20,022 | 20,793 | 24,085 |
| | Independent Fianna Fáil | Paddy Kelly | 23.6 | 14,198 | 14,992 | |
| | Sinn Féin The Workers' Party | Séamus Rodgers | 4.0 | 2,401 | | |
| Electorate: 81,340 Valid: 60,077 Quota: 30,039 Turnout: 73.9% |||||||

### 1977 general election

1977 general election: Donegal :
| 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 |
| | Fine Gael | James White | 17.6 | 10,672 | | |
| | Independent Fianna Fáil | Neil Blaney | 17.3 | 10,499 | | | | | | | | |
| | Fine Gael | Paddy Harte | 13.9 | 8,483 | 8,554 | 8,990 | 9,001 | 9,412 | 11,900 | | | |
| | Fianna Fáil | Joseph Brennan | 10.6 | 6,448 | 6,465 | 6,477 | 6,502 | 6,701 | 6,714 | 6,788 | 6,935 | 8,499 |
| | Fianna Fáil | Bernard McGlinchey | 9.4 | 5,693 | 5,715 | 5,724 | 5,789 | 5,892 | 5,941 | 5,984 | 6,260 | 7,309 |
| | Fianna Fáil | Hugh Conaghan | 8.9 | 5,413 | 5,423 | 5,425 | 5,435 | 5,474 | 5,609 | 5,690 | 6,340 | 7,597 |
| | Fianna Fáil | Patrick Delap | 7.5 | 4,583 | 4,597 | 4,605 | 4,614 | 5,150 | 5,170 | 5,195 | 5,474 | |
| | Independent Fianna Fáil | Paddy Keaveney | 5.5 | 3,325 | 3,353 | 3,362 | 3,645 | 4,110 | 4,283 | 4,460 | | |
| | Fine Gael | Séamus Gill | 4.8 | 2,946 | 2,959 | 2,996 | 2,998 | 3,057 | | | | |
| | Sinn Féin The Workers' Party | Séamus Rodgers | 4.1 | 2,505 | 2,548 | 2,569 | 2,575 | | | | | |
| | Independent | Charles Long | 0.4 | 256 | | | | | | | | |
| Electorate: 77,813 Valid: 60,823 Quota: 10,138 Turnout: 78.2% |||||||||||||

### 1933 general election

1933 general election: Donegal :
| Party | Party | Candidate | FPv% | Count | Count | Count | Count | Count | Count | Count | Count |
| Party | Party | Candidate | FPv% | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| | Independent | James Myles | 15.5 | 10,784 | | | | | | | |
| | Fianna Fáil | Brian Brady | 10.9 | 7,615 | 7,616 | 7,632 | 7,633 | 7,640 | 7,643 | 7,651 | 10,298 |
| | Fianna Fáil | Joseph O'Doherty | 10.6 | 7,384 | 7,389 | 7,435 | 7,436 | 7,512 | 7,619 | 7,633 | 8,555 |
| | Fianna Fáil | Neal Blaney | 10.5 | 7,310 | 7,317 | 7,350 | 7,350 | 7,371 | 7,380 | 7,393 | 8,764 |
| | Fianna Fáil | Hugh Doherty | 10.1 | 7,055 | 7,068 | 7,243 | 7,245 | 7,280 | 7,474 | 7,485 | 8,469 |
| | Fianna Fáil | Archie Cassidy | 8.7 | 6,036 | 6,045 | 6,109 | 6,110 | 6,124 | 6,147 | 6,157 | |
| | National Centre Party | James Dillon | 7.6 | 5,319 | 5,484 | 5,976 | 5,998 | 6,348 | 8,753 | | |
| | Cumann na nGaedheal | Daniel McMenamin | 7.6 | 5,261 | 5,910 | 6,375 | 6,484 | 11,410 | | | |
| | Cumann na nGaedheal | Michael Óg McFadden | 6.8 | 4,725 | 5,941 | 8,316 | | | | | |
| | Cumann na nGaedheal | Michael McGilligan | 6.2 | 4,306 | 4,992 | 5,303 | 5,752 | | | | |
| | Cumann na nGaedheal | Eugene Doherty | 5.4 | 3,779 | 4,081 | | | | | | |
| Electorate: 88,666 Valid: 69,574 Quota: 7,731 Turnout: 78.5% ||||||||||||

### 1932 general election

1932 general election: Donegal :
| 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 |
| | Independent | James Myles | 15.5 | 10,077 | | | | | | | | | | | |
| | Independent | James Dillon | 11.8 | 7,645 | | | | | | | | | | | |
| | Fianna Fáil | Neal Blaney | 11.4 | 7,416 | | | | | | | | | | | |
| | Fianna Fáil | Brian Brady | 7.6 | 4,955 | 4,970 | 5,001 | 5,149 | 5,179 | 5,563 | 5,582 | 6,138 | 6,388 | 6,409 | 6,436 | 8,482 |
| | Fianna Fáil | Hugh Doherty | 7.2 | 4,691 | 4,702 | 4,719 | 4,728 | 4,762 | 5,006 | 5,068 | 5,904 | 5,958 | 6,014 | 6,024 | |
| | Cumann na nGaedheal | John White | 7.2 | 4,654 | 5,870 | 5,892 | 5,892 | 5,970 | 6,111 | 6,572 | 6,676 | 7,221 | | | |
| | Cumann na nGaedheal | Eugene Doherty | 6.7 | 4,313 | 4,549 | 4,640 | 4,642 | 4,679 | 5,082 | 5,911 | 5,978 | 7,116 | 8,121 | | |
| | Cumann na nGaedheal | Daniel McMenamin | 6.2 | 4,050 | 4,425 | 4,464 | 4,467 | 4,531 | 4,801 | 5,495 | 5,521 | 8,300 | | | |
| | Fianna Fáil | Frank Carney | 6.0 | 3,874 | 3,888 | 3,915 | 3,950 | 3,984 | 4,621 | 4,641 | 6,245 | 6,295 | 6,311 | 6,323 | 9,139 |
| | Cumann na nGaedheal | Michael Óg McFadden | 5.8 | 3,737 | 4,144 | 4,187 | 4,188 | 4,232 | 4,353 | 5,384 | 5,455 | | | | |
| | Fianna Fáil | Patrick Doherty | 5.2 | 3,370 | 3,383 | 3,392 | 3,395 | 3,432 | 3,559 | 3,596 | | | | | |
| | Cumann na nGaedheal | Hugh Law | 4.3 | 2,795 | 3,249 | 3,280 | 3,282 | 3,304 | 3,428 | | | | | | |
| | Labour | Archie Cassidy | 3.9 | 2,506 | 2,610 | 2,732 | 2,742 | 3,107 | | | | | | | |
| | Labour | Charles Sweeney | 1.1 | 733 | 763 | 774 | 775 | | | | | | | | |
| Electorate: 87,413 Valid: 64,816 Quota: 7,202 Turnout: 74.2% ||||||||||||||||

### September 1927 general election

September 1927 general election: Donegal :
| 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 |
| | Independent | James Myles | 14.5 | 7,934 | | | | | | | | | |
| | Fianna Fáil | Neal Blaney | 12.6 | 6,877 | | | | | | | | | |
| | Cumann na nGaedheal | Eugene Doherty | 11.2 | 6,108 | | | | | | | | | |
| | Cumann na nGaedheal | Hugh Law | 9.6 | 5,224 | 5,647 | 5,657 | 5,679 | 5,690 | 5,703 | 6,877 | | | |
| | Fianna Fáil | Frank Carney | 8.8 | 4,811 | 4,824 | 5,503 | 5,503 | 5,526 | 6,392 | | | | |
| | Cumann na nGaedheal | Michael Óg McFadden | 8.7 | 4,740 | 4,883 | 4,885 | 4,891 | 4,915 | 4,949 | 5,455 | 6,001 | 6,004 | 6,107 |
| | Farmers' Party | John White | 8.5 | 4,627 | 5,520 | 5,527 | 5,528 | 5,537 | 5,579 | 5,685 | 5,751 | 5,753 | 5,807 |
| | Cumann na nGaedheal | Patrick McGoldrick | 7.1 | 3,889 | 3,944 | 3,948 | 3,949 | 3,961 | 4,035 | 4,249 | 4,374 | 4,375 | 4,425 |
| | Labour | Archie Cassidy | 6.7 | 3,675 | 3,756 | 3,810 | 3,812 | 3,832 | 4,037 | 4,201 | 4,229 | 4,309 | 6,527 |
| | Fianna Fáil | Patrick McGinley | 4.5 | 2,463 | 2,480 | 2,512 | 2,512 | 2,530 | 3,165 | 3,193 | 3,243 | 3,487 | |
| | Cumann na nGaedheal | Edward Kelly | 3.8 | 2,067 | 2,291 | 2,298 | 2,312 | 2,325 | 2,348 | | | | |
| | Fianna Fáil | John O'Flaherty | 3.6 | 1,973 | 1,987 | 2,004 | 2,004 | 2,016 | | | | | |
| | Independent | Kate McCarry | 0.3 | 164 | 173 | 176 | 176 | | | | | | |
| Electorate: 90,224 Valid: 54,552 Quota: 6,062 Turnout: 60.5% ||||||||||||||

### June 1927 general election

June 1927 general election: Donegal :
| 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 |
| | Independent | James Myles | 14.6 | 7,557 | | | | | | | | | | |
| | National League | Daniel McMenamin | 11.3 | 5,828 | | | | | | | | | | |
| | Fianna Fáil | Neal Blaney | 11.0 | 5,681 | 5,693 | 5,696 | 5,700 | 6,533 | | | | | | |
| | Farmers' Party | John White | 9.7 | 5,031 | 5,903 | | | | | | | | | |
| | Cumann na nGaedheal | Eugene Doherty | 7.8 | 4,005 | 4,354 | 4,412 | 4,417 | 4,458 | 4,459 | 4,625 | 4,683 | 4,730 | 4,812 | 5,427 |
| | Cumann na nGaedheal | Hugh Law | 7.0 | 3,596 | 3,791 | 3,839 | 3,857 | 3,932 | 3,934 | 4,584 | 4,699 | 4,735 | 4,750 | 5,220 |
| | Cumann na nGaedheal | Michael Óg McFadden | 6.0 | 3,105 | 3,220 | 3,231 | 3,244 | 3,268 | 3,269 | 3,628 | 3,694 | 3,736 | 3,745 | 4,941 |
| | Fianna Fáil | Frank Carney | 5.8 | 3,002 | 3,012 | 3,012 | 3,013 | 3,258 | 3,872 | 3,885 | 3,963 | 6,664 | | |
| | Fianna Fáil | Seamus Monaghan | 5.6 | 2,899 | 2,902 | 2,903 | 2,904 | 3,083 | 3,217 | 3,226 | 3,285 | | | |
| | Cumann na nGaedheal | Patrick McGoldrick | 5.3 | 2,750 | 2,795 | 2,812 | 2,819 | 2,845 | 2,847 | 3,272 | 3,318 | 3,335 | 3,341 | |
| | Labour | Archie Cassidy | 4.8 | 2,491 | 2,559 | 2,564 | 2,573 | 2,650 | 2,676 | 2,719 | 4,264 | 4,365 | 4,524 | 4,761 |
| | Labour | Denis Houston | 3.9 | 2,005 | 2,086 | 2,096 | 2,120 | 2,205 | 2,212 | 2,303 | | | | |
| | Cumann na nGaedheal | Patrick McFadden | 3.8 | 1,975 | 2,023 | 2,029 | 2,035 | 2,050 | 2,053 | | | | | |
| | Fianna Fáil | Joseph O'Doherty | 3.3 | 1,714 | 1,735 | 1,741 | 1,743 | | | | | | | |
| Electorate: 90,224 Valid: 51,639 Quota: 5,738 Turnout: 57.2% |||||||||||||||

### 1924 by-election

A by-election was held on 20 November 1924 to fill the vacancy caused by the resignation on 1 August 1924 of the Cumann na nGaedheal TD Peter Ward. There were only two candidates, and the winner was the Cumann na nGaedheal candidate Denis McCullough.
1924 by-election: Donegal :
| Party | Party | Candidate | FPv% | Count |
| Party | Party | Candidate | FPv% | 1 |
| | Cumann na nGaedheal | Denis McCullough | 57.6 | 24,919 |
| | Republican | Thomas Daly | 42.4 | 18,371 |
| Electorate: 96,777 Valid: 43,290 Quota: 21,646 Turnout: 44.7% |||||

### 1923 general election

The 1923 general election to the 4th Dáil was the first in the Donegal constituency where the number of candidates exceeded the number of seats. Under the Electoral Act 1923, Donegal's representation had been increased from six to eight seats, and these were contested by no less than 19 candidates.
1923 general election: Donegal :
| Party | Party | Candidate | FPv% | 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 |
| | Independent | James Myles | 13.2 | 6,954 | | | | | | | | | | | | | | | |
| | Cumann na nGaedheal | Peter Ward | 10.5 | 5,513 | 5,544 | 5,667 | 5,676 | 5,829 | 5,848 | 6,048 | | | | | | | | | |
| | Cumann na nGaedheal | Eugene Doherty | 10.0 | 5,261 | 5,271 | 5,316 | 5,333 | 5,385 | 5,412 | 5,635 | 5,670 | 6,409 | | | | | | | |
| | Cumann na nGaedheal | Patrick McGoldrick | 7.1 | 3,743 | 3,754 | 3,809 | 3,816 | 3,874 | 3,910 | 3,955 | 3,982 | 4,263 | 4,597 | 4,624 | 4,689 | 5,330 | 5,683 | 5,853 | 5,942 |
| | Republican | Brian Monaghan | 7.0 | 3,678 | 3,683 | 3,696 | 3,819 | 3,838 | 3,841 | 3,899 | 3,899 | 3,909 | 3,910 | 4,112 | 4,124 | 4,218 | 4,251 | 4,262 | 4,263 |
| | Farmers' Party | John White | 7.0 | 3,673 | 3,743 | 3,751 | 3,753 | 3,767 | 4,225 | 4,263 | 4,276 | 4,287 | 4,293 | 4,317 | 5,210 | 5,351 | 6,664 | | |
| | Republican | Peadar O'Donnell | 6.9 | 3,621 | 3,627 | 3,643 | 3,778 | 3,796 | 3,808 | 3,865 | 3,867 | 3,882 | 3,882 | 4,867 | 4,878 | 5,120 | 5,205 | 5,234 | 5,234 |
| | Cumann na nGaedheal | Patrick McFadden | 6.6 | 3,492 | 3,500 | 3,521 | 3,531 | 3,587 | 3,604 | 3,737 | 3,761 | 4,017 | 4,200 | 4,222 | 4,311 | 4,888 | 5,747 | 5,980 | |
| | Republican | Joseph O'Doherty | 6.1 | 3,213 | 3,216 | 3,225 | 3,407 | 3,420 | 3,452 | 3,477 | 3,480 | 3,545 | 3,551 | 4,055 | 4,076 | 4,324 | 4,385 | 4,416 | 4,418 |
| | Labour | Denis Houston | 4.7 | 2,456 | 2,476 | 2,630 | 2,678 | 2,818 | 2,892 | 2,965 | 2,972 | 3,001 | 3,006 | 3,080 | 3,136 | | | | |
| | Farmers' Party | Hugh Law | 3.3 | 1,718 | 1,762 | 1,771 | 1,780 | 1,949 | 2,278 | 2,634 | 2,665 | 2,769 | 2,779 | 2,787 | 3,254 | 3,600 | | | |
| | Republican | Samuel O'Flaherty | 3.1 | 1,647 | 1,651 | 1,678 | 1,950 | 1,963 | 1,976 | 1,981 | 1,982 | 1,992 | 1,993 | | | | | | |
| | Cumann na nGaedheal | Hugh J. O'Kelly | 2.8 | 1,489 | 1,498 | 1,521 | 1,550 | 1,574 | 1,656 | 1,696 | 1,707 | | | | | | | | |
| | Ratepayers | Michael McNelis | 2.7 | 1,432 | 1,449 | 1,457 | 1,462 | 1,609 | 1,617 | | | | | | | | | | |
| | Farmers' Party | Neil Faulkner | 2.3 | 1,209 | 1,215 | 1,239 | 1,252 | 1,267 | | | | | | | | | | | |
| | Farmers' Party | Andrew Lowry | 2.1 | 1,127 | 1,960 | 1,968 | 1,976 | 1,995 | 2,081 | 2,130 | 2,134 | 2,182 | 2,186 | 2,209 | | | | | |
| | Independent | Daniel McMenamin | 1.8 | 927 | 939 | 990 | 1,000 | | | | | | | | | | | | |
| | Republican | Edward Gallen | 1.7 | 908 | 910 | 920 | | | | | | | | | | | | | |
| | Independent | Henry McGowan | 1.3 | 669 | 673 | | | | | | | | | | | | | | |
| Electorate: 96,977 Valid: 52,730 Quota: 5,859 Turnout: 54.4% ||||||||||||||||||||

### 1922 general election

As at the 1921 general election, Sinn Féin stood one candidate for every seat (except for two Dublin constituencies); the Treaty had divided the party between 65 pro-treaty candidates, 57 anti-treaty and 1 nominally on both sides. Unlike the elections a year earlier, other parties stood in most constituencies forcing single transferable vote elections, with Sinn Féin losing 30 seats.
In Donegal, Sinn Féin's six outgoing TDs from the 2nd Dáil were elected unopposed, Socialist Republican, Jack White having withdrawn his candidacy. Two had opposed the treaty, and four supported it; they are listed here in alphabetical order
1922 general election: Donegal :
| Party | Party | Candidate | FPv% | % | Seat |
| | Sinn Féin (Pro-Treaty) | Joseph McGinley | Unopposed | N/A | 1 |
| | Sinn Féin (Pro-Treaty) | Patrick McGoldrick | Unopposed | N/A | 2 |
| | Sinn Féin (Anti-Treaty) | Joseph O'Doherty | Unopposed | N/A | 3 |
| | Sinn Féin (Anti-Treaty) | Samuel O'Flaherty | Unopposed | N/A | 4 |
| | Sinn Féin (Pro-Treaty) | Joseph Sweeney | Unopposed | N/A | 5 |
| | Sinn Féin (Pro-Treaty) | Peter Ward | Unopposed | N/A | 6 |
| Electorate: 76,280 Valid: Quota: Turnout: |||||||

### 1921 general election

At the 1921 general election to the 2nd Dáil, no seats were contested in the 26 counties which became the Irish Free State. In Donegal, six Sinn Féin candidates were nominated for the constituency's six seats. Major Robert L Moore, who had contested East Donegal in 1918, was selected as the Unionist candidate by 22 April 1921 but was described on 15 May 1921 as 'having at the last moment withdrawn'. No ballot was needed, and all six candidates were elected unopposed after the close of nominations on 24 May 1921. The 6 TDs elected are listed here in alphabetical order:
1921 general election: Donegal :
| Party | Candidate | FPv% | % | Seat |
| Sinn Féin | Joseph McGinley | Unopposed | N/A | 1 |
| Sinn Féin | Patrick McGoldrick | Unopposed | N/A | 2 |
| Sinn Féin | Joseph O'Doherty | Unopposed | N/A | 3 |
| Sinn Féin | Samuel O'Flaherty | Unopposed | N/A | 4 |
| Sinn Féin | Joseph Sweeney | Unopposed | N/A | 5 |
| Sinn Féin | Peter Ward | Unopposed | N/A | 6 |