Here are the most recent election results for the Ynys Mon constituency.
Note: Smaller parties may be omitted. The candidate with the largest vote who does not belong to one of the main parties is listed as 'Minor'. Votes listed for 'Other' are calculated by taking the votes from the main parties and 'Minor' away from the total votes cast.
| Name | Ynys Mon |
| Region | North Wales |
| Current Status | Abolished |
| Election | Party | |
|---|---|---|
| Senedd Election 2021 | Plaid Cymru | |
| Senedd Election 2016 | Plaid Cymru | |
| Senedd Election 2011 | Plaid Cymru | |
| Senedd Election 2007 | Plaid Cymru | |
| Senedd Election 2003 | Plaid Cymru | |
| Senedd Election 1999 | Plaid Cymru | |
View full Senedd Election 2021 results.
| Party | Votes | Percentage | Change | |
|---|---|---|---|---|
| Plaid Cymru | 15,506 | 55.91% | +1.12% | |
| Conservative | 5,689 | 20.51% | +8.97% | |
| Labour | 5,300 | 19.11% | +2.11% | |
| Reform UK | 692 | 2.50% | N/A | |
| Liberal Democrat | 547 | 1.97% | +0.65% | |
| Majority | 9,817 | 35.40% | ||
| Turnout | 27,734 | 51.79% | +1.80% | |
| Electorate | 53,554 | |||
Swing from PC to CON | 3.93% | |||
Swing from LAB to CON | 3.43% | |||
Swing from PC to LAB | 0.49% | |||
| Plaid Cymru hold | ||||
View full Senedd Election 2016 results.
| Party | Votes | Percentage | Change | |
|---|---|---|---|---|
| Plaid Cymru | 13,788 | 54.79% | +13.36% | |
| Labour | 4,278 | 17.00% | -9.21% | |
| UKIP | 3,212 | 12.76% | N/A | |
| Conservative | 2,904 | 11.54% | -17.68% | |
| Green | 389 | 1.55% | N/A | |
| Liberal Democrat | 334 | 1.33% | -1.83% | |
| Minor | 262 | 1.04% | N/A | |
| Majority | 9,510 | 37.79% | ||
| Turnout | 25,167 | 49.99% | +1.30% | |
| Electorate | 50,345 | |||
Swing from LAB to PC | 11.29% | |||
Swing from LAB to UKIP | 10.99% | |||
Swing from UKIP to PC | 0.30% | |||
| Plaid Cymru hold | ||||
View full Senedd Election 2011 results.
| Party | Votes | Percentage | Change | |
|---|---|---|---|---|
| Plaid Cymru | 9,969 | 41.42% | +1.70% | |
| Conservative | 7,032 | 29.22% | +16.24% | |
| Labour | 6,307 | 26.21% | +8.75% | |
| Liberal Democrat | 759 | 3.15% | -0.25% | |
| Majority | 2,937 | 12.20% | ||
| Turnout | 24,067 | 48.69% | -3.42% | |
| Electorate | 49,431 | |||
Swing from PC to CON | 7.27% | |||
Swing from LAB to CON | 3.75% | |||
Swing from PC to LAB | 3.53% | |||
| Plaid Cymru hold | ||||
View full Senedd Election 2007 results.
| Party | Votes | Percentage | Change | |
|---|---|---|---|---|
| Plaid Cymru | 10,653 | 39.72% | +2.28% | |
| Minor | 6,261 | 23.34% | N/A | |
| Labour | 4,681 | 17.45% | -6.41% | |
| Conservative | 3,480 | 12.98% | -15.54% | |
| Liberal Democrat | 912 | 3.40% | -4.88% | |
| UKIP | 833 | 3.11% | +1.20% | |
| Majority | 4,392 | 16.38% | ||
| Turnout | 26,820 | 52.11% | +1.62% | |
| Electorate | 51,469 | |||
Swing from LAB to MIN | 14.88% | |||
Swing from PC to MIN | 10.53% | |||
Swing from LAB to PC | 4.34% | |||
| Plaid Cymru hold | ||||
View full Senedd Election 2003 results.
| Party | Votes | Percentage | Change | |
|---|---|---|---|---|
| Plaid Cymru | 9,452 | 37.44% | -15.15% | |
| Conservative | 7,197 | 28.51% | +9.25% | |
| Labour | 6,024 | 23.86% | +0.93% | |
| Liberal Democrat | 2,089 | 8.28% | +3.07% | |
| UKIP | 481 | 1.91% | N/A | |
| Majority | 2,255 | 8.93% | ||
| Turnout | 25,243 | 50.49% | -9.07% | |
| Electorate | 49,998 | |||
Swing from PC to CON | 12.20% | |||
Swing from PC to LAB | 8.04% | |||
Swing from LAB to CON | 4.16% | |||
| Plaid Cymru hold | ||||
View full Senedd Election 1999 results.
| Party | Votes | Percentage | Change | |
|---|---|---|---|---|
| Plaid Cymru | 16,469 | 52.60% | N/A | |
| Labour | 7,181 | 22.93% | N/A | |
| Conservative | 6,031 | 19.26% | N/A | |
| Liberal Democrat | 1,630 | 5.21% | N/A | |
| Majority | 9,288 | 29.66% | ||
| Turnout | 31,311 | 59.56% | N/A | |
| Electorate | 52,571 | |||
| Plaid Cymru win | ||||