Electoral Commission Ireland — constituency boundaries, voter registration & the 2024 map
The Electoral Commission expanded the Dáil from 160 to 174 seats and created 4 new constituencies for 2024. Census 2022 data drove every decision — Ireland had grown to 5.15 million. It was the first time a permanent independent authority ran the review, not an ad-hoc commission. The data is below.
What the Electoral Commission does
Before 2023, a new ad-hoc commission ran each boundary review — appointed fresh for every election cycle. The Electoral Commission made this function permanent and independent, separate from government.
The 2024 constituency boundary review
Census 2022 triggered the Electoral Commission's first review. Ireland's population had reached 5.15 million — an 8.1% increase from 2016 — so the Dáil needed more seats. Under the Electoral Act, each constituency must return 3–5 TDs, with about one TD per 30,000 people.
| Change | Detail |
|---|---|
| Seats added | +14 (160 → 174) |
| Constituencies | +4 (39 → 43) |
| New constituencies | Dublin Fingal East, Dublin Fingal West, Tipperary North, Tipperary South |
| Population basis | CSO Census 2022 — 5,149,139 |
| Biggest gainer | Dublin — multiple new seats reflecting population growth |
All 43 constituencies — seats 2024
The four new constituencies (highlighted) reflect population growth in Dublin and Tipperary. The Commission also reviewed every other boundary and adjusted most of them to reflect population shifts since 2016.
Electoral register Ireland — how to check and update
The Electoral Commission runs Ireland's electoral register. In 2023 it switched to a rolling (continuous) system. The register now updates all year round — there is no annual snapshot.
- Check your registration: checktheregister.ie — the official Electoral Commission voter lookup tool. Enter your name and address to confirm you are registered correctly.
- Update or register: Submit your application to your local county or city council. Find all council links at electoralcommission.ie.
- Eligibility: Irish citizens and EU citizens living in Ireland can register for Dáil elections. UK citizens living in Ireland can vote in local elections. Non-EEA citizens can vote in local elections only.
- Deadline: You must be registered before an election is called. Continuous registration means no annual deadline — but register well ahead of any expected election.
Why constituency boundaries changed in 2024
The Electoral Commission draws constituency boundaries from Census population counts. Census 2022 showed that Ireland's fastest-growing areas — Dublin commuter counties, Fingal, Meath, Kildare, and Wicklow — had grown far faster than the rest of the state. Dublin-area constituencies gained seats as a result. More rural areas held or consolidated their representation.
IrelandInsights maps Census 2022 population growth at electoral division level — the same data the Electoral Commission used for its boundary review. Kildare (+18.5%), Meath (+15.2%), and Wicklow (+13.4%) saw the largest proportional gains. That growth translated directly into more Dáil seats.
Explore Dublin constituency results →Explore Irish constituencies on the map
IrelandInsights maps all 43 Electoral Commission boundaries with 2024 and 2020 results — first preference votes by party, turnout, and seat winners. Overlay Census 2022 data to see the population behind each constituency.
2024 election results → · Elections map → · Population growth →
Area demographics → · Commuter towns →
The Electoral Commission's first boundary review added 14 seats. Census 2022 data drove every allocation. When Census 2027 data arrives, the Commission will review boundaries again — and the fastest-growing counties today (Meath, Kildare, Fingal) are likely to gain more seats.
Campaigning in one of these constituencies? See our Canvassing Yield Planner guide — it ranks every electoral division by vote yield to target door-to-door canvassing (Analyst feature).
More IrelandInsights reports
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- → Ireland 2024 Election Results — By Constituency