For the first time in Northern Ireland’s political history, an Irish nationalist party entered an Assembly election as the frontrunner. When polls closed on 5 May 2022, the result reshaped assumptions about the region’s electoral landscape — and the political consequences are still unfolding. This page walks through the seat counts, vote swings, and the long road to forming a government that followed.

4 related posts

Date: 5 May 2022 ·
Total Seats: 90 ·
Sinn Féin Seats: 27 ·
DUP Seats: 25 ·
Alliance Seats: 17

Quick snapshot

1Confirmed facts
2What’s unclear
  • Exact voter turnout figures for the 2022 poll
  • Long-term stability of the restored Executive under the 2024 deal
  • Whether Alliance’s 2022 surge will hold or erode in future cycles
3Timeline signal
  • 5 May 2022: Election held — votes counted 6–7 May, final results 8 May (Wikipedia)
  • Post-election: DUP refused deputy First Minister role over Protocol dispute (Wikipedia)
  • 31 January 2024: DUP and UK Government clinch deal to revive Executive (Wikipedia)
  • 3 February 2024: O’Neill and Little-Pengelly sworn into office (Wikipedia)
4What’s next
  • Next scheduled Assembly election: on or before 6 May 2027 (Wikipedia)
  • Executive faces immediate pressures: public services, cost of living, post-Brexit trade friction (Wikipedia)
  • Alliance positioning as kingmakers if neither DUP nor SF commands a majority (Wikipedia)
Key figures from the 2022 Northern Ireland Assembly election
Metric Value
Election Date 5 May 2022
Assembly Members Elected 90
Largest Party Sinn Féin (27 seats)
Second Party DUP (25 seats)
Other Parties Alliance 17, UUP 9, SDLP 8, Others 4
Sinn Féin Vote Share 29.0% of first-preference votes
DUP Vote Share 21.3% of first-preference votes
Alliance Vote Share 13.53% of first-preference votes

NI Assembly Election 2022 results

The 2022 Northern Ireland Assembly election took place on 5 May 2022, producing a result that broke a half-century of electoral assumptions. Voting occurred across 18 constituencies using the Single Transferable Vote system, with polls closing at 10 pm and counting beginning the following morning. By 8 May, the final seats were allocated — and Northern Ireland had a new largest party.

Seat breakdown by party

Sinn Féin entered the election with 27 seats and maintained that count, but the unchanged number masked a more significant shift: the party overtook the DUP to become the largest in the Assembly for the first time. According to the official NI Assembly Election Report, the party secured 29.0% of first-preference votes — 250,385 individual votes casting their ballots for the republican party.

The DUP fell to 25 seats, down from 28 in 2017, with its vote share dropping to 21.3% from 28.0% four years earlier — an 18.4% decline in absolute votes from 225,413 to 184,002. The loss of three seats handed the initiative to Sinn Féin, and ITV News described the outcome as a moment of historic consequence. “The overall result was historic. For the first time Sinn Féin topped the poll,” the broadcaster reported.

Alliance Party posted the most striking gain: a net increase of nine seats to reach 17, overtaking both the Ulster Unionist Party (9 seats) and the Social Democratic and Labour Party (8 seats). Alliance first-preference votes rose 60%, from 72,717 in 2017 to 116,681 in 2022, per the official NI Assembly report. The party positioned itself as a cross-community alternative to the traditional blocs.

Vote shares

Five parties cleared the threshold for representation: Sinn Féin led at 29.0%, followed by DUP at 21.3%, Alliance at 13.53%, UUP at 11.17%, and SDLP at 9.07%. Smaller parties and independents accounted for the remainder. TUV secured 7.63% of the vote but won only a single seat, illustrating how the Single Transferable Vote system can disadvantage smaller parties without strong constituency organizations. The ARK analysis of seat changes recorded that ten seats changed hands overall, with Alliance gaining nine of them.

Northern Ireland election results map

Sinn Féin topped first-preference voting in nine constituencies, DUP in six, and Alliance in three. The geographic spread reflected existing patterns but with notable concentration: Sinn Féin’s strongest showings came in West Belfast, South Tyrone, and Foyle, where the party’s first-preference totals regularly exceeded those of rivals by large margins.

The catch

Winning the most seats does not automatically grant a party the First Minister position if the opposing largest party refuses to take the deputy role. The power-sharing structure requires both offices to be filled — meaning the Executive remained in limbo until January 2024.

Northern Ireland election results history

The 2022 election marked the seventh Assembly election since devolution began in 1998, following the Good Friday Agreement. Each cycle has produced its own defining narrative, but the 2022 result stood apart for the simple reason that the party finishing first had never before been an Irish nationalist formation. That factual shift reframed decades of conventional wisdom about the region’s electorate.

Key elections overview

Looking at the arc from 1998 to 2022: the early assemblies were dominated by the UUP and SDLP as the moderate faces of unionism and nationalism respectively. The 2003 election saw DUP overtake UUP as the largest unionist party — a shift that proved durable. By 2017, the DUP and SF had consolidated their positions as the dominant binary, with smaller parties struggling to maintain representation. The official NI Assembly historical records track each cycle’s seat totals and vote shares, documenting how the Alliance Party’s gradual rise accelerated sharply in 2022.

Trends in party performance

The clearest long-term trend is the hollowing out of the middle ground. UUP and SDLP — once considered natural governing partners for either major bloc — have contracted significantly. The SDLP lost one-third of its seats in 2022 alone, dropping from 12 to 8. UUP held at 9 but has not approached its 2003 peak of 27 seats. Alliance, by contrast, has grown in every election cycle since 2003, climbing from a marginal presence to the third-largest party in 2022.

Editor’s note

The 2017 results serve as the clearest baseline for measuring 2022’s shifts. Comparing the two cycles reveals that the big story was not movement at the top — where both SF and DUP held roughly steady — but rather the collapse of middle-party support and its consolidation toward Alliance.

Northern Ireland elections 2026

The question of when the next election will arrive is straightforward: the Assembly operates on a fixed five-year term, with the next ordinary election due on or before 6 May 2027, according to the Northern Ireland Act 1998 as amended. However, early elections remain possible if the Assembly passes a resolution to dissolve itself, a mechanism that triggered the 2022 snap election after the prior Assembly collapsed.

Next election schedule

The statutory deadline of 6 May 2027 represents the outer boundary. If the current Executive remains functional and no early dissolution is passed, voters will go to the polls in spring 2027. The Wikipedia entry on the next election notes that any party with sufficient Assembly support could trigger an early ballot, though the political cost of appearing to destabilize governance makes such moves rare outside genuine crises.

Potential changes

Three dynamics will likely shape the 2027 landscape. First, the Executive’s performance between now and then — particularly on health waiting lists, education funding, and economic development — will test whether Alliance’s cross-community appeal translates into sustained support or represents a protest vote that normalizes. Second, the DUP’s recovery trajectory matters: if the party’s post-Protocol positioning stabilizes its base, it may recover some of the votes lost in 2022. Third, any UK-wide political shifts could influence voter behavior at Stormont. The ARK seat-change analysis suggests that the 2022 result left the Assembly with no single party commanding a working majority — a structural reality that makes coalition maintenance a permanent challenge.

NI election results 2024

There was no Assembly election in 2024. The 2024 date appearing in search queries reflects confusion with the local government elections that took place in May 2024 — a separate electoral event covering councils, not the Assembly. The 2022 Assembly results nonetheless continued to shape political calculations throughout 2024 and into 2025, because the Executive formed in February 2024 was the direct consequence of those results.

Recent local elections context

The May 2024 local elections produced results that analysts drew upon to measure the Assembly trends. Those council results — while not directly affecting Assembly seat counts — provided a snapshot of party strength at the grassroots level. The pattern mirrored what emerged in 2022: Sinn Féin and Alliance holding or building on their positions, the DUP fighting to stabilize, and the smaller parties struggling for relevance.

Bottom line: The 2022 Assembly election produced a historic result that reshaped Northern Ireland’s political map. Sinn Féin’s first-place finish was real, but the DUP’s post-election boycott proved that winning seats does not automatically translate into governing power. The Executive formed in 2024 under the Windsor Framework deal is the product of both the electoral verdict and a prolonged negotiation that followed it.

Northern Ireland Assembly election results 2017

The 2017 Assembly election provides the essential comparison point for understanding 2022’s shifts. In 2017, the DUP won 28 seats with 28.0% of the vote, Sinn Féin won 27 seats with 27.9%, UUP 10 seats, SDLP 12 seats, and Alliance just 8 seats. The gap between first and second place was a single seat and less than one percentage point of the vote — a tie that obscured any clear mandate. According to the official NI Assembly report, the 2017 result featured a DUP vote total of 225,413 — a figure that fell by over 41,000 votes by 2022.

2017 seat counts

In 2017, five parties crossed the representation threshold: DUP 28, SF 27, UUP 10, SDLP 12, Alliance 8, with the remaining seats distributed among smaller parties including the Green Party (2 seats), TUV (1 seat), and People Before Profit (1 seat). The Assembly convened in January 2020 following a three-year gap caused by the power-sharing institution’s collapse, demonstrating how fragile the devolved institutions have been.

Shifts to 2022

The comparison table below summarizes the core shifts:

Seat changes between 2017 and 2022 Assembly elections
Party 2017 Seats 2022 Seats Change
Sinn Féin 27 27 0 (but largest by 2 seats)
DUP 28 25 −3
Alliance 8 17 +9
UUP 10 9 −1
SDLP 12 8 −4
Green Party 2 0 −2

What this means: the combined UUP and SDLP total fell from 22 to 17 seats, creating a gap that Alliance filled with its nine-seat gain — a structural shift that altered the Assembly’s centre of gravity.

Timeline

Key dates around the 2022 Assembly election
Date Event
5 May 2022 Northern Ireland Assembly election held
6–7 May 2022 Votes counted across 18 constituencies
8 May 2022 Counting completed; final seats declared
Post-election DUP refused to nominate deputy First Minister over Northern Ireland Protocol dispute
31 January 2024 DUP and UK Government announced deal to restore Executive
3 February 2024 Sinn Féin’s Michelle O’Neill sworn in as First Minister; DUP’s Emma Little-Pengelly sworn in as deputy First Minister

Confirmed facts vs. what’s still uncertain

Confirmed facts

  • Sinn Féin won 27 seats on 29.0% of first-preference votes in the 5 May 2022 election
  • DUP won 25 seats on 21.3% of first-preference votes, down 3 seats from 2017
  • Alliance Party won 17 seats — a gain of 9 from 2017, with vote totals rising 60%
  • Votes were counted on 6–7 May and the final seat was declared on 8 May 2022
  • The Executive did not form immediately; DUP boycotted over the Protocol
  • A DUP–UK deal on 31 January 2024 paved the way for Executive restoration
  • Michelle O’Neill (SF) and Emma Little-Pengelly (DUP) sworn in on 3 February 2024

What’s still uncertain

  • Precise voter turnout percentage for the 2022 election
  • Whether Alliance’s seat gains reflect durable support or a protest signal
  • Long-term durability of the 2024 Executive under the Windsor Framework deal
  • Whether the 2027 election will see a return to DUP–SF binary dominance or continued Alliance growth

What was said

The overall result was historic. For the first time Sinn Féin topped the poll.

— ITV News (contemporary election coverage)

The election resulted in significant changes to the composition of the Assembly which largely favoured Sinn Féin and Alliance.

— Northern Ireland Assembly Official Election Report (official electoral record)

Sinn Féin became the largest party, marking the first time an Irish nationalist/republican party won the most seats in the Northern Ireland Assembly.

— Wikipedia (comprehensive election summary)

What it means going forward

The 2022 Northern Ireland Assembly election rewrote the region’s political script in ways that continue to reverberate. Sinn Féin’s position as the largest party is now fact rather than prospect, but the 21-month gap between the election result and Executive formation demonstrated that electoral arithmetic does not automatically translate into governance. The DUP’s Protocol-based boycott was a political choice, and the eventual deal that ended it — negotiated in January and formalized in February 2024 — reflects a pragmatic compromise rather than a resolution of the underlying tensions that triggered the boycott.

For Northern Ireland voters, the practical stakes are concrete: the Health Minister faces hospital waiting lists that routinely stretch beyond a year for specialist appointments; schools are operating under sustained budget pressure; and businesses along the Irish Sea border are managing the trade frictions that the Protocol was designed to address. The next Assembly election, due by May 2027, will test whether the Alliance surge was a one-cycle protest or the beginning of a structural realignment that permanently alters the two-party binary. If it is the latter, every party — including the ones currently in power — will need to recalibrate their strategies for a political landscape that no longer runs on the assumptions that governed it for twenty years.

Related reading: Irish consumer guides · TVs in Ireland

Additional sources

niassembly.gov.uk

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Frequently asked questions

How many seats did each party win in 2022?

Sinn Féin won 27 seats, DUP 25, Alliance 17, UUP 9, SDLP 8, and smaller parties and independents shared the remaining 12 seats across the 90-seat Assembly.

Why was the 2022 NI Assembly election held?

The previous Assembly collapsed after the DUP’s Paul Givan resigned as First Minister in January 2022, triggering a chain reaction that made it impossible to form a functioning executive. A snap election was called to break the deadlock.

What is the role of the Northern Ireland Assembly?

The Assembly is Stormont’s devolved legislature, responsible for making laws on transferred matters including health, education, agriculture, environment, and social development. It operates under power-sharing rules that require both the largest unionist and largest nationalist parties to hold the First Minister and deputy First Minister offices.

Who became First Minister after 2022?

Michelle O’Neill of Sinn Féin became First Minister on 3 February 2024, nearly 21 months after the election. The delay resulted from the DUP’s boycott of the deputy First Minister position, which the party maintained until the UK Government reached a Windsor Framework deal on 31 January 2024.

How does proportional representation work in NI elections?

The Single Transferable Vote system used in Northern Ireland allows voters to rank candidates in order of preference. A quota is calculated based on total valid votes and available seats. Candidates who exceed the quota are elected and their surplus votes are redistributed. This system tends to produce more proportional outcomes than first-past-the-post and gives smaller parties a better chance of winning representation.

What were the vote shares in 2022 NI election?

First-preference votes broke down approximately as: Sinn Féin 29.0%, DUP 21.3%, Alliance 13.53%, UUP 11.17%, SDLP 9.07%, with the remainder split among smaller parties including TUV at 7.63% and People Before Profit at 1.14%.

Are there by-elections since 2022?

By-elections can be triggered if an MLA resigns, dies, or becomes disqualified. Since the 2022 election, any significant vacancies and resulting by-election results would be reported by the Electoral Office for Northern Ireland and covered by outlets including ITV News and BBC News.