Photo: Mutney · CC0Older than 94% of UK towns: half of Tresillian is over 53.4
23% of households have dependent children, against 29% across England’s towns. At the same time, households in detached houses are more common here than in 85% of UK towns. In 2021, the Census found 711 residents in Tresillian, living in 309 households. Locally, 5.2% of households live in a flat or apartment.
Residents aged 65 and over make up 32% in Tresillian, more than in 94% of UK towns
Share of residents in each five-year age band, Census 2021.
No age band is larger than 55–59: 9% of residents, 1.4 times the share across England’s towns. On average, 18% of residents are 65 or over across England’s towns. Residents aged 15 to 24: 7.6% of the total.
Broad ages · share of residents
Women and men · all residents
53% women, 47% men
About 89 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.
Below 93% of UK towns: 6.4% of residents lived at another address a year earlier
What adults did at the 2021 Census (the ONS’s NS-SEC classes), and where residents lived a year earlier.
Adults by occupation class · residents 16 and over
Address a year before the Census
Residents who lived somewhere else a year earlier. The bar runs to 25%.
By class, 31% of adults are in managerial and professional jobs and 22% in routine and semi-routine work (England’s towns: 33% and 24%). Across England’s towns, the share of residents who moved in within the year is 11%. For Tresillian, the census puts full-time students at 4%.
Only 27% of households in Tresillian are one person living alone
Household make-up at the 2021 Census. Each square is 1% of households.
Against Cornwall’s towns and England’s towns
People per household
England’s towns.
Households average 2.3 people, against 2.4 across England’s towns. Shared households of unrelated adults are rarer here than in 53% of UK towns. One-person households make up 30% across England’s towns.
In Tresillian, 13% of households have no car or van, fewer than in 66% of UK towns
Accommodation type and cars or vans per household, Census 2021. Owning and renting are on Cost of living.
Type of home
Cars or vans · share of households
19% of households live in a terraced house; across England’s towns the figure is 24%.
Residents whose main language is English: 99%, a higher share than 86% of UK towns
Country of birth, year of arrival and main language, Census 2021.
Born outside the UK, by region · share of all residents; the bar runs to 25%
Main language · residents aged 3 and over
Residents born abroad were most often born in EU countries (1.8%), then in the Americas, Oceania and elsewhere (0.8%). Elsewhere, 90% of residents have English as their main language across England’s towns. Few places have so few residents born outside the UK: 4.2% here, fewer than in three quarters of UK towns.
Tresillian sits above 78% of UK towns for residents who describe themselves as White British (95%)
How residents described themselves at the 2021 Census. Lines join the lowest and highest of the three figures.
Ethnic groups other than White British · all residents
White British, not charted: 95% of Tresillian · Cornwall’s towns 93% · England’s towns 73%.
Religion · all residents
Residents who describe themselves as Christian: 51%, above 61% of UK towns. Of the other groups, the largest are Mixed or multiple (2%), Other White (1.3%) and Indian (0.1%). Across England’s towns, 73% of residents describe themselves as White British.
In Tresillian, 12% of residents give unpaid care, more than in 97% of UK towns
Legal partnership status (residents 16 and over) and unpaid care (residents 5 and over), Census 2021.
Partnership status · residents 16 and over
Unpaid care given · share of residents 5 and over
The share of married adults and civil partners tops 80% of UK towns: 53%. By way of comparison, 8.7% of residents give unpaid care across England’s towns. 27% of adults have never married or formed a civil partnership.
A degree-level qualification for 32% of adults
Highest qualification, residents 16 and over, Census 2021.
Highest qualification · residents 16 and over
Against 34% across England’s towns, 32% of adults here have a degree-level qualification, while 18% hold no qualification (18%).
1 in 7 nearby towns have a higher median age than Tresillian
Nearby built-up areas coloured by median age, Census 2021. Tap a town for its page.
| Town | People | Away | Median age | 65+ | Homes with children |
|---|---|---|---|---|---|
| Tresillian | 711 | — | 53.4 | 32% | 23% |
| Probus | 2,565 | 2.4 mi | 47.1 | 23% | 25% |
| St Erme and Trispen | 1,604 | 2.7 mi | 39.5 | 16% | 33% |
| Truro | 23,060 | 2.8 mi | 42.9 | 22% | 25% |
| Shortlanesend | 1,427 | 3.5 mi | 36.2 | 13% | 38% |
| Grampound Road | 1,160 | 4.2 mi | 37.2 | 11% | 37% |
| Threemilestone | 2,854 | 5.2 mi | 45.6 | 24% | 24% |
| Carnon Downs and Devoran | 2,129 | 5.7 mi | 55.7 | 36% | 20% |
Health, work and homes have their own pages
What this data can and can’t tell you
- “Cornwall’s towns” and “England’s towns” mean their built-up areas. Census comparisons pool every built-up area in Cornwall (or England), summed the same way as Tresillian’s figures, so households in open countryside are left out.
- Small counts are blurred. The ONS adds small random changes to Census counts to protect privacy, so the same total differs a little between tables, and the shares of a small town can move by a point or two.
Questions about Tresillian’s residents
What is the population of Tresillian?
The 2021 Census counted 711 people in Tresillian’s built-up area.
What is the average age in Tresillian?
The median age was 53.4 at the 2021 Census. 7.6% of residents were 15 to 24 and 32% were 65 or over.
How diverse is Tresillian?
95% of residents described themselves as White British in 2021, against 73% across England’s towns and 93% across Cornwall’s towns. 4.2% were born outside the UK.
What religion are people in Tresillian?
41% said they had no religion and 51% that they were Christian at the 2021 Census; 0% were Muslim and 6.9% didn’t answer.
Is Tresillian good for families?
23% of households had dependent children in 2021, against 29% across England’s towns. Schools are on Tresillian’s schools page.
Sources: ONS Census 2021, output areas summed to the ONS 2022 built-up area (TS002, TS003, TS004, TS007A, TS008, TS015, TS017, TS019, TS021, TS029, TS030, TS039, TS044, TS045, TS062, TS067). 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.