Each edition grades its towns against each other only.
The town has 3,736 residents and lies in Suffolk, East of England.
Safety is its strong suit (A): police record 13.7 violent and sexual offences per 1,000 residents a year, and 4.2 home and vehicle crimes. Overall, Trimley St Mary earns an A−, better than 83% of UK towns. That places it #7 of 34 in Suffolk. Prices are modest for what you get (A): homes sell for a median £270,000, about 5.2 times local household income. Its schools fall short (D): primary results beat 12% of towns in England; secondary results beat 21% of towns in England.
Figures: crime, police.uk, averaged Sep 2023 to Aug 2026 · prices, HM Land Registry, the last three years.
The 3 things Trimley St Mary does most differently from other towns.
Each subject compared with the 2,160 UK towns with an overall grade (schools within England), ordered by how far Trimley St Mary is from typical. American towns are graded separately.
How TownRatings grades towns →
Historic England lists 15 buildings inside Trimley St Mary’s built-up area.
9% of its homes were built before 1919, against 15% in the typical UK town.
Explore the history →Museums, castles, gardens and days out in and near Trimley St Mary. Best known first.
Castle · English HeritageLandguard Fort3.7 km outside town, to the south
MuseumLightvessel 183.2 km outside town, to the southwest
PierFelixstowe Pier2.3 km outside town, to the southeast
FortHarwich Redoubt3.7 km outside town, to the southwest
FortBeacon Hill Fort4.1 km outside town, to the southwest
MuseumLifeboat Museum3.2 km outside town, to the southwestPhotos: each place’s Wikidata image, from Wikimedia Commons under the licence below (our copy, resized).
Data highlights are ordered by what stands out in Trimley St Mary.
The 15-to-24 age group: 8.9%, below both Suffolk’s towns (10%) and England’s towns (12%). People 65 and over make up a quarter of the town. Half of Trimley St Mary is older than 48.4, half younger.
52% women, 48% men
About 94 men for every 100 women. Across England, 51% of residents are women. Women live longer than men, so towns with many older residents have more women.
| Trimley St Mary | Suffolk | England | |
|---|---|---|---|
| Under 15 | 15% | 16% | 18% |
| 15–24 | 8.9% | 10% | 12% |
| 25–44 | 22% | 24% | 27% |
| 45–64 | 30% | 26% | 25% |
| 65+ | 25% | 23% | 18% |
| No qualifications | 20% | 20% | 18% |
| Apprenticeship | 5.8% | 6.5% | 5.3% |
| A levels or similar | 17% | 17% | 17% |
| Degree level | 22% | 27% | 34% |
ONS Census 2021 · Suffolk and England: all residents of their built-up areas · OGL
Attainment 8 at the one secondary school within 3 km averages 40.3, and 40% of pupils get grade 5 or above in English and maths. The one school in town appears below. Key Stage 2 results at the 7 primary schools within 3 km: 52% of pupils meet the expected standard in reading, writing and maths (three-year average).
| School | Level | Pupils | Letter |
|---|---|---|---|
| Trimley St Mary Primary SchoolLargest primary schoolPrimary | Primary | 389 | D |
A year of reports to August 2026 adds up to 95 offences in Trimley St Mary and 11 cases of nuisance behaviour. Violence and sexual offences made up nearly three fifths of the total. Anti-social behaviour, shown but not graded, came to 3.5 reports per 1,000, below both Suffolk’s towns (4) and England’s towns (7.8).
Not gradedAnti-social behaviour, shoplifting and other theft are shown but left out of the Safety Grade, which counts violence and crimes against homes and vehicles per resident.
data.police.uk street-level crime · points inside the ONS built-up-area boundary · OGL · The police category of violence and sexual offences includes harassment and stalking.
Social housing holds 9% of households, below both Suffolk’s towns (16%) and England’s towns (18%). Private tenants account for 13% of households. The median sale, £270,000, comes from 156 standard sales inside Trimley St Mary’s built-up area from September 2023 to August 2026.
| By type | Median | Sales |
|---|---|---|
| Detached | £337,500 | 50 |
| Semi-detached | £260,000 | 78 |
| Terraced | £212,500 | 25 |
HM Land Registry Price Paid · ONS private rents · MHCLG / Welsh Government council tax · ONS Census 2021 tenure · OGL
The heritage lists give each building’s grade but not its age, so we don’t say which is oldest.
Historic England list, October 2026 · Valuation Office Agency, homes by build period · OGL
The Census was taken on 21 March 2021, in lockdown, so 25% of workers were mainly at home; shares here are of those who travelled.
53% of commuters travelled under 5 km, above both Suffolk’s towns (44%) and England’s towns (45%). The car carried 86% of commuters at the census. About 8% of its commuters stay in Trimley St Mary for work. Jobs per working resident: 1.2.
ONS Census 2021, method of travel and distance to work · ONS small-area income · DWP claimant count · OGL
The nearest A&E to Trimley St Mary is Ipswich Hospital, 7.6 miles away. Seeing a GP means leaving Trimley St Mary: the nearest practice is 1 miles away. Also worth knowing: at the census, 4.3% of people here described their health as bad or very bad.
| Census 2021 | Trimley St Mary | Suffolk | England |
|---|---|---|---|
| Good or very good health | 82% | 81% | 82% |
| Bad or very bad health | 4.3% | 5% | 5.2% |
| Disabled (Equality Act) | 18% | 18% | 17% |
ONS Census 2021, general health and disability · OHID Fingertips, life expectancy 2019–23 · OGL · These shares come straight from the census, without allowing for age, and young towns benefit; the Health Grade instead weighs age-adjusted measures, including life expectancy and early deaths.
15 listed buildings in Trimley St Mary.
Street Farmhouse: Photo: Olehenriksen · CC BY-SA 4.0 · Eagle House: Photo: Olehenriksen · CC BY-SA 4.0 · The Three Mariners: Photo: Olehenriksen · CC BY-SA 4.0 · Church Farmhouse: Photo: Olehenriksen · CC BY-SA 4.0
The nearest built-up areas, from ONS’s 2022 boundaries. See them on the map →
| Town | People | Miles | Overall | Cost | Safety | Health |
|---|---|---|---|---|---|---|
| Trimley St Mary | 3,736 | — | A− | A | A | B |
| Trimley St Martin | 1,725 | 1 | — | B+ | C+ | B |
| Felixstowe | 24,218 | 1.4 | B− | A− | C+ | C+ |
| Kirton | 1,245 | 2 | — | B | A+ | B |
| Shotley Gate | 1,418 | 2.8 | — | A− | A | A− |
| Harwich | 20,219 | 4.2 | D− | D | D | C− |
| Martlesham Heath | 2,730 | 6.1 | B+ | B | D | A− |
| Kesgrave | 14,947 | 6.6 | A+ | B+ | A | A− |
Trimley St Martin, Kirton and Shotley Gate have fewer than 2,500 residents, so they get subject grades but no overall grade. People: Census 2021. Miles: centre to centre.
GCSE results trail 79% of towns in England, and primary results trail 88% (Department for Education, Attainment 8 and Key Stage 2). One state school is inside the town; places are handled by Suffolk council.
Town in Suffolk, England
Trimley St Mary is a built-up area of 3,736 people, in the East Suffolk council area. TownRatings uses ONS’s 2022 built-up areas as towns: the physical town, as people mean the word, rather than a council district, so its figures cover the town itself.
Built from ONS geography and Census 2021
Sources: ONS Census 2021, output areas summed to the ONS 2022 built-up area · HM Land Registry Price Paid (standard sales, September 2023 to August 2026) · ONS Price Index of Private Rents (August 2026, by council) · MHCLG and Welsh Government council tax, Band D 2026–27 (with parish precepts in England) · data.police.uk street-level crime, 36 months to August 2026, points inside the built-up-area boundary · ONS small-area life expectancy and healthy life expectancy, 2019 to 2023 (England and Wales), OHID Fingertips small-area indicators (England) and Census 2021 health, adjusted for age · ONS small-area income estimates (financial year ending 2023) · DWP claimant count via Nomis (January to August 2026) · Historic England, National Heritage List for England (listed buildings, scheduled monuments, registered parks and gardens, battlefields, World Heritage Sites), October 2026, inside the ONS 2022 built-up-area boundary · Valuation Office Agency, Council Tax: stock of properties by build period (31 March 2025) · TownRatings grades: our own summary of the data, ranked against UK towns only. All under the Open Government Licence v3.0.
Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.