# Great Grimsby and Cleethorpes East Yorkshire and The Humber. About 108,309 people (mid-2024 estimate) in 34 square kilometres. Melanie Onn has been the Labour MP for Great Grimsby and Cleethorpes since July 2024. They won by 4,803 votes on a 48.1% turnout. Constituency. Code E14001255. In: [Yorkshire and The Humber](https://openindex.co.uk/yorkshire-and-the-humber) ## MP and the 2024 result Melanie Onn has been the Labour MP for Great Grimsby and Cleethorpes since July 2024. They won by 4,803 votes on a 48.1% turnout. MP: [Melanie Onn](https://members.parliament.uk/member/4464) (Labour). ### General election, 4 July 2024: Great Grimsby and Cleethorpes | Candidate | Party | Votes | Share | | --- | --- | --- | --- | | Melanie Onn (elected) | Labour | 15,336 | 41.9% | | Oliver Freeston | Reform UK | 10,533 | 28.8% | | Lia Nici | Conservative | 8,269 | 22.6% | | Ed Fraser | Green Party | 1,115 | 3.0% | | John Lawson | Liberal Democrat | 1,036 | 2.8% | | Mark Gee | Trade Unionist and Socialist Coalition | 222 | 0.6% | | Christopher Stephenson | Social Democratic Party | 108 | 0.3% | Electorate 76,157. Turnout 48.1%. Majority 4,803 (13.1%). Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: House of Commons Library, UK Parliament election results. https://electionresults.parliament.uk/elections/3504 MP as of 18 October 2026. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API. ## Key figures - **Majority, 2024 general election: 13.1%** (July 2024). The winner in Great Grimsby and Cleethorpes had a majority of 13.1% of valid votes at the general election on 4 July 2024 (House of Commons Library). Joint 297th smallest majority of 650. Source: UK Parliament election results, July 2024. Published 4 July 2024. https://openindex.co.uk/constituency/great-grimsby-and-cleethorpes#f-ge2024-majority - **Turnout, 2024 general election: 48.1%** (July 2024). Turnout in Great Grimsby and Cleethorpes at the general election on 4 July 2024 was 48.1% (House of Commons Library). Joint 36th lowest turnout of 650. Source: UK Parliament election results, July 2024. Published 4 July 2024. https://openindex.co.uk/constituency/great-grimsby-and-cleethorpes#f-ge2024-turnout - **Population: 107,414** (2021). Great Grimsby and Cleethorpes had 107,414 usual residents at the census (ONS Census 2021). 179th most populated of 650. Source: Census 2021, England and Wales and Scotland's Census 2022 and Census 2021, Northern Ireland, 2021. Published 21 July 2026. https://openindex.co.uk/constituency/great-grimsby-and-cleethorpes#f-population - **People in radon Affected Area squares: 0%** (2022). About 0% of people in Great Grimsby and Cleethorpes live in a 1 km square that the radon atlas marks as a radon Affected Area. UK 44%. Source: Worked out by Open Index from the UKHSA and BGS radon atlas and census output areas. Published 1 December 2022. https://openindex.co.uk/constituency/great-grimsby-and-cleethorpes#f-radon-affected-share ## On the map - [Radon Affected Area by constituency](https://openindex.co.uk/map/radon-affected-areas?place=E14001255) (Worked out by Open Index · 2022): About 0% of people in Great Grimsby and Cleethorpes live in a 1 km square that the radon atlas marks as a radon Affected Area. - [Average house price by council](https://openindex.co.uk/map/house-prices?place=E14001255) (UK House Price Index · August 2026): Published for whole councils, so the map colours all of North East Lincolnshire, where most of this constituency lies. The outline is Great Grimsby and Cleethorpes. - [Crime and ASB by council](https://openindex.co.uk/map/recorded-crime?place=E14001255) (Police recorded crime and outcomes (data.police.uk) · August 2026): Published for whole councils, so the map colours all of North East Lincolnshire, where most of this constituency lies. The outline is Great Grimsby and Cleethorpes. - [Population by constituency](https://openindex.co.uk/map/population?place=E14001255) (Census 2021, England and Wales): Great Grimsby and Cleethorpes had 107,414 usual residents at the census. ## How Great Grimsby and Cleethorpes compares Each constituency against every other constituency the measure covers. | Measure | Great Grimsby and Cleethorpes | Rank | Compared with | | --- | --- | --- | --- | | Majority, 2024 general election | 13.1% | joint 297th smallest majority | 650 constituencies, UK · Jul 2024 | | Turnout, 2024 general election | 48.1% | joint 36th lowest turnout | 650 constituencies, UK · Jul 2024 | | Population | 107,414 | 179th most populated | 650 constituencies, UK · 2021 | | People in radon Affected Area squares | 0% | joint fewest people in radon Affected Areas | 650 constituencies, UK · 2022 | ## What is the population of Great Grimsby and Cleethorpes? Great Grimsby and Cleethorpes had 107,414 usual residents at the census. Great Grimsby and Cleethorpes is the 179th most populated of 650 in the UK. ## Figures for the whole of North East Lincolnshire Most of Great Grimsby and Cleethorpes lies in North East Lincolnshire. These figures are published for the whole of North East Lincolnshire, not for constituencies, so they describe the council and not Great Grimsby and Cleethorpes itself. [See North East Lincolnshire](https://openindex.co.uk/north-east-lincolnshire) - **Average house price: £146,370** (August 2026). North East Lincolnshire’s average house price was £146,370 in August 2026 (HM Land Registry). Up 4.2% in a year. Source: UK House Price Index, August 2026. Published 21 October 2026. - **Median full-time pay: £35,052** (2025). Full-time workers living in North East Lincolnshire earned a median of £35,052 in 2025 (ONS earnings survey). 65th lowest paid of 348. Source: Annual Survey of Hours and Earnings, 2025. Published 23 October 2025. - **House price to pay: 4.2×** (2025). A home in North East Lincolnshire costs 4.2 times local full-time pay. Joint 15th most affordable of 348. Source: Worked out by Open Index from the UK House Price Index and the ONS earnings survey. Published 21 October 2026. - **Deprivation score: 30.2** (2025). North East Lincolnshire has a deprivation score of 30.2 in the English Indices of Deprivation 2025 (MHCLG). 39th most deprived of 296. Source: English Indices of Deprivation 2025, 2025. Published 30 October 2025. ## Great Grimsby and Cleethorpes in brief The winner in Great Grimsby and Cleethorpes had a majority of 13.1% of valid votes at the general election on 4 July 2024. Turnout in Great Grimsby and Cleethorpes at the general election on 4 July 2024 was 48.1%. Great Grimsby and Cleethorpes had 107,414 usual residents at the census. About 0% of people in Great Grimsby and Cleethorpes live in a 1 km square that the radon atlas marks as a radon Affected Area. ## About - Type: Constituency - Code: E14001255 - Council: [North East Lincolnshire †](https://openindex.co.uk/north-east-lincolnshire) - Region: [Yorkshire and The Humber](https://openindex.co.uk/yorkshire-and-the-humber) - Nation: [England](https://openindex.co.uk/england) - Area: 34.36 km² - People, mid-2024: 108,309* - Wards: 10 - Middle areas: 16 - Neighbourhoods: 75 - Output areas: 380 * People: worked out by Open Index from neighbourhood estimates, shared out by where people lived at the census (by area in Northern Ireland). This area's edges do not follow neighbourhood edges, so the figure is close but not exact. † Best fit: the council this constituency mostly lies in. Its edges do not follow it. ## Next door [Brigg and Immingham](https://openindex.co.uk/constituency/brigg-and-immingham) ## Similar places Constituencies with the closest mix of age and density. [Cheltenham](https://openindex.co.uk/constituency/cheltenham), [Kingston upon Hull West and Haltemprice](https://openindex.co.uk/constituency/kingston-upon-hull-west-and-haltemprice), [Birkenhead](https://openindex.co.uk/constituency/birkenhead), [Old Bexley and Sidcup](https://openindex.co.uk/constituency/old-bexley-and-sidcup), [Ellesmere Port and Bromborough](https://openindex.co.uk/constituency/ellesmere-port-and-bromborough), [Plymouth Moor View](https://openindex.co.uk/constituency/plymouth-moor-view). ## Latest updates for Great Grimsby and Cleethorpes - August 2026 house prices published: HM Land Registry and partners · Oct 2026. - September 2026 rent published: ONS private rents · Oct 2026. - Dental practices updated: NHS England · Oct 2026. - Schools updated: Ofsted · Oct 2026. The same figures as JSON: https://openindex.co.uk/v1/places/E14001255 ## How to cite Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/constituency/great-grimsby-and-cleethorpes, or to one figure with its anchor, https://openindex.co.uk/constituency/great-grimsby-and-cleethorpes#f-ge2024-majority. Open Index's own text and the figures it works out are licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source data keeps its publishers' licences, named with each figure. Give each figure's period and source with it. Snapshot 2026.10.9. The HTML page: https://openindex.co.uk/constituency/great-grimsby-and-cleethorpes