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Constituency

Mitcham and Morden

At a glance

Mitcham and Morden is a UK parliamentary constituency in London, currently represented in the House of Commons by Dame Siobhain McDonagh, a Labour MP. Dame Siobhain McDonagh has represented the seat since 1 May 1997. At the 2024 general election it was safe seat, won by a majority of 18,761 votes (41.5%), ranking #634 most marginal of 650 seats. Their Commons voting participation while representing this constituency is 55.2 %, compared with a Commons average of 72.7 %. Browse all seats on the UK constituencies index.

Constituency snapshot

Current representation signals for this constituency.

Current MP Dame Siobhain McDonagh
Photograph of Dame Siobhain McDonagh MP ID 193
Current party
Lab Labour
MP since 1 May 1997
Current Commons representation
Voting participation 55.2 %
1,303 of 2,361 eligible divisions
Region London
Electoral region of England, Scotland, Wales or Northern Ireland
Parliament ID 4186
Imported constituency identifier
Recent votes shown 10
Latest divisions listed below

Boundary

Imported constituency boundary for Mitcham and Morden.

Map

MP voting summary

How Dame Siobhain McDonagh has voted since becoming MP for this constituency.

Voted in 1,303 of 2,361 eligible divisions (55.2 %).

55.2 %

Participation

747

Aye

556

No

19

Against party

Aye / No split Ayes 747 / Noes 556

Recent divisions

Division Vote
Draft Trade Unions (Permissible Means of Voting) and Employment Rights (Unfair Dismissal) (Amendment) Order 2026
Trade Work / Employment
Aye
Draft Code of Practice on Electronic and Workplace Ballots for Statutory Trade Union Ballots
Trade Work / Employment
Aye
Public Office (Accountability) Bill Report Stage: Amendment 19 No
Public Office (Accountability) Bill Report Stage: Amendment 199 No
Public Office (Accountability) Bill Report Stage: Amendment 3 No
Draft Town and Country Planning (Discharge of Local Planning Authority Functions) (England) Regulations 2026 Aye
Draft Children’s Wellbeing and Schools Act 2026 (Establishment of Schools) (Consequential Amendments) Regulations 2026
Education
Aye
Draft Supply of Machinery (Safety) (Amendment etc.) and the EU Machinery Regulation (Enforcement etc. in Northern Ireland) Regulations 2026 Aye
National Security (State Threats) Bill: motion to agree to Lords Amendment 1
Defence
Aye
Taxation (Energy and Vehicles) Bill Committee: New Clause 5
Energy Tax Transport
No
View full voting record →

Election results

How this seat has voted at general elections and by-elections. All UK election results →

Safe seat — won by 41.5% in 2024

Majority of 18,761 votes · #634 most marginal of 650 seats.

4 July 2024

59 % turnout · maj 18,761
Siobhain McDonagh · Labour 25,085 (55.4%)
Ellie Cox · Conservative 6,324 (14%)
Pippa Maslin · Green Party 4,635 (10.2%)
Ruth Price · Reform UK 4,135 (9.1%)
Jenifer Gould · Liberal Democrat 3,622 (8%)
Mehmood Jamshed · Workers Party of Britain 1,091 (2.4%)
Desmond Coke · Christian Peoples Alliance 363 (0.8%)

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Browse all UK constituencies →

Constituency source UK Parliament Members API
Member source UK Parliament member record

FAQs

Who is the MP for Mitcham and Morden?

Dame Siobhain McDonagh is the current MP for Mitcham and Morden. Source

Which party currently holds Mitcham and Morden?

Mitcham and Morden is currently represented by Dame Siobhain McDonagh of Labour. Source

What is the Parliament constituency ID for Mitcham and Morden?

Mitcham and Morden's imported Parliament constituency ID is 4186. Source

Where can I find the member profile for Mitcham and Morden?

The current MP profile for Mitcham and Morden is linked from this page and records party, roles, interests, election data, and voting record where available. Source

Can the MP for Mitcham and Morden change?

Yes. Constituency representation can change after a general election, by-election, resignation, recall petition, or other parliamentary change. Re-running the current MP import refreshes this data. Source

Where does Mitcham and Morden data come from?

Constituency and current MP data is imported from the UK Parliament Members API. Source