Yorkshire and The Humber · England · 76,157Boundary · 2023

Great Grimsby & Cleethorpes

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Created in the 2023 boundary review, replacing Great Grimsby.

Dispatch
Apr 2026

Won by Lab in its first election in 2024. Covers Grimsby, Cleethorpes and Humberston and New Waltham. Population 104,484. Recorded crime is 81% above the national average. Median income £25K (below average).

Melanie Onn's one notable break from Labour came in December 2024, when she voted against her party on a Ten Minute Rule Motion to introduce proportional representation -- one of only a handful of Labour MPs to do so, signalling a clear preference for keeping first-past-the-post. Beyond that, she has been consistently loyal, voting with the Labour majority 99.7% of the time, including backing the government's position on multiple Lords amendments to the Children's Wellbeing and Schools Bill and the Pension Schemes Bill in April 2026, the latter including votes to preserve ministerial powers over pension fund investment directions.

Her participation rate of 73% sits below the Commons average, though her speech record is substantial -- 200 contributions across 126 debates since July 2024. Economy and jobs dominate her interventions, followed by local government, energy, social care, and environment. Her voting profile shows she is markedly tougher on crime than the average Labour MP (+29 percentage points) and consistently backs government powers over Lords scrutiny. She is a member of the Energy Security and Net Zero Committee, which aligns with energy featuring prominently in her debate topics.

354
Commons votes
This parliament
£25k
Median income
HMRC · 2024
76.2k
Electorate
2024 GE

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§ 06This week in Westminster.Live · today’s sittingOrder Paper · refreshed daily

Onn’s scheduled Commons activity this week — whipped divisions, oral questions, debates — drawn from the House of Commons Order Paper.

§ 07The record, at a glance.370 divisions voted

Two readings of the same data. Issue volume shows where Onn has cast the most ballots — a proxy for engagement, not direction. Notable votes are the moments where the whip was free or where they broke ranks.

Issue volume
Top issues by total divisions voted · cumulative this Parliament
Taxation
86
Economy
78
Education
35
Employment
33
Constitution and Democracy
25
Welfare and Benefits
25
Notable votes
Free votes and rebellions — moments the MP’s own judgment matters more than the whip
Elections (proportional representation): Ten Minute Rule Motion 03 Dec 2024 · free vote
No
§ 08The local picture.10 wards

Constituencies are not uniform. Below — the local council make-up, key facts worth knowing, and the neighbouring seats on either side.

WardCouncillorVotesParty
Croft BakerMarian Jervis1,122Labour P
East MarshLoyd Layton Emmerson557Liberal
FreshneyPaul Christopher Bright997Independ
HaverstoeBill Parkinson1,331Conserva
HeneageEmma Louise Clough734Labour P
ParkRobson Jack Augusta1,079Labour P
Sidney SussexEdward Thomas Peter Kaczmarek672Labour P
SouthSheldon James Mill726Labour P
West MarshKarl Wilson412Labour P
YarboroughLes Bonner880Independ
Population (2021 Census)
104,484
Electorate 76,157 · 2024 register
Median income
£24,600
HMRC SPI 2024
Households renting privately
27.6%
England average 20.0%
Schools
50
32 primary · 6 secondary
Next · dig deeperEvery division, question, speech and committee record

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record → Data view

Filter divisions, search written questions, read every speech since the election. Sortable, searchable, downloadable.

More constituency data is being added, including local issue analysis and historical trends. Learn about our methodology. View data sources & attribution.