Photo: John Salmon · CC BY-SA 2.0Sellindge ranks below 99% of UK towns on households in flats: 0.3%
The median age in Sellindge is 48.4, higher than in 76% of UK towns. At the 2021 Census Sellindge was home to 766 people in 314 households. The census found that nearly one in ten households have no car or van here. Just over a quarter of adults have never married or formed a civil partnership, against 39% across England’s towns.
A higher share of residents aged 65 and over than 81% of UK towns, at 27%
Share of residents in each five-year age band, Census 2021.
No age band is larger than 50–54: 8.3% of residents. Lower than in 82% of UK towns: 8.7% of residents are aged 15 to 24. As a reference point, 18% of residents are 65 or over across England’s towns. In St Mary's Bay, the oldest of Kent’s towns by this measure, it is 42%.
Broad ages · share of residents
Women and men · all residents
51% women, 49% men
About 94 men for every 100 women. Across England, 51% of residents are women.
Fewer full-time students than 96% of UK towns: 3.4%
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%.
Compared with 11% across England’s towns, 7% of residents lived at another address a year earlier here. Across England’s towns, the share of full-time students is 7.9%.
One-person households: 26%, a lower share than 82% of UK towns
Household make-up at the 2021 Census. Each square is 1% of households.
Against Kent’s towns and England’s towns
People per household
England’s towns.
Across England’s towns, households average 2.4 people; in Sellindge, 2.4. 4.1% of households are unrelated adults sharing a home, a higher share than in 93% of UK towns. By way of comparison, 30% of households are one person living alone across England’s towns.
Sellindge sits above 88% of UK towns for households in detached houses (49%)
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
With households in terraced houses at 14%, Sellindge is behind 76% of UK towns on that count. 0.3% of households live in a flat, less than in 99% of UK towns; 49% in a detached house, against 21% across England’s towns.
Residents whose main language is English: 99%, a higher share than 98% 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
4.1% of residents were born outside the UK, against 18% across England’s towns. Across England’s towns, the share of residents whose main language is English is 90%. Most residents from abroad were born in EU countries (1.7%) or in the Middle East and Asia (1%).
96% of residents describe themselves as White British, more than in 90% of UK towns
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: 96% of Sellindge · Kent’s towns 82% · England’s towns 73%.
Religion · all residents
Asked about religion, 43% answered none, against 37% across England’s towns. Of the other groups, the largest are Other White (1.4%), Mixed or multiple (1%) and Indian (0.4%). 48% of residents describe themselves as Christian, fewer than in 58% of UK towns. For residents who describe themselves as White British, the comparison across England’s towns is 73%.
In Sellindge, 11% of residents give unpaid care, more than in 92% 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
34 people give 50 hours or more of unpaid care a week. More married adults and civil partners than in 80% of UK towns: 53%. The comparison figure for unpaid carers is 8.7% across England’s towns.
Among adults, 27% hold a degree-level qualification
Highest qualification, residents 16 and over, Census 2021.
Highest qualification · residents 16 and over
In Sellindge, 27% of adults hold a degree-level qualification, against 34% across England’s towns, while 22% have no qualification at all (18%).
Sellindge is younger than 5 of its 7 nearest neighbours
Nearby built-up areas coloured by median age, Census 2021. Tap a town for its page.
Health, work and homes have their own pages
What this data can and can’t tell you
- “Kent’s towns” and “England’s towns” mean their built-up areas. Census comparisons pool every built-up area in Kent (or England), summed the same way as Sellindge’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 Sellindge’s residents
What is the population of Sellindge?
The 2021 Census counted 766 people in Sellindge’s built-up area.
What is the average age in Sellindge?
The median age was 48.4 at the 2021 Census. 8.7% of residents were 15 to 24 and 27% were 65 or over.
How diverse is Sellindge?
96% of residents described themselves as White British in 2021, against 73% across England’s towns and 82% across Kent’s towns. 4.1% were born outside the UK.
What religion are people in Sellindge?
43% said they had no religion and 48% that they were Christian at the 2021 Census; 0% were Muslim and 6.7% didn’t answer.
Is Sellindge good for families?
26% of households had dependent children in 2021, against 29% across England’s towns. Schools are on Sellindge’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.