Photo: Colin Smith · CC BY-SA 2.0A median age of 52.2: Warnham is older than 92% of UK towns
The figure for households with dependent children is 22% in Warnham and 29% across England’s towns. 834 residents in 397 households: that is Warnham at the 2021 Census. In Warnham, 28% of households live in a flat or apartment. More one-person households than in 83% of UK towns: 34%.
A smaller share of residents aged 15 to 24 than 96% of UK towns: 7.6%
Share of residents in each five-year age band, Census 2021.
The largest age band is 50–54: nearly one in ten residents, 1.3 times the share across England’s towns. 30% of residents are 65 or over, more than in 91% of UK towns. The usual figure: 12% of residents are aged 15 to 24 across England’s towns.
Broad ages · share of residents
Women and men · all residents
53% women, 47% men
About 88 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.
A lower share of full-time students than 95% of UK towns, at 3.5%
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%.
Managerial and professional jobs take in 38% of adults here, routine and semi-routine work 22% (England’s towns: 33% and 24%). Warnham has fewer residents who moved in within the year than 99% of UK towns, at 5.6%. On average, 7.9% of adults are full-time students across England’s towns.
Smaller households than 90% of UK towns: 2.1 people on average
Household make-up at the 2021 Census. Each square is 1% of households.
Against West Sussex’s towns and England’s towns
People per household
England’s towns.
The share of shared households of unrelated adults stands at 2.3%.
18% of households live in a detached house, below 79% 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
Terraced houses are home to 26% of households, against 24% across England’s towns. Still, 28% of households live in a flat, more than in 94% of UK towns; 18% in a detached house, against 21% across England’s towns. The share of households without a car or van stands at 15%.
Residents born outside the UK make up 8.5% in Warnham, more than in 67% 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
Most residents from abroad were born in the Middle East and Asia (2.4%) or in Africa (2.4%). As a yardstick, 18% of residents were born outside the UK across England’s towns. Compared with 90% across England’s towns, 98% of residents have English as their main language here.
A higher share of residents who describe themselves as Christian than 84% of UK towns, at 56%
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: 91% of Warnham · West Sussex’s towns 84% · England’s towns 73%.
Religion · all residents
Islam is the religion of 1.2% of residents. Measured more widely, 46% of residents describe themselves as Christian across England’s towns. Residents with no religion are rarer here than in 70% of UK towns. Where 73% of residents describe themselves as White British across England’s towns, Warnham has 91%.
Warnham sits below 87% of UK towns for adults who have never married (27%)
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 figure for married adults and civil partners is 49% in Warnham and 44% across England’s towns. Heavy unpaid care, 50 hours a week or more, falls to 15 residents. Adults who have never married make up 39% across England’s towns.
Degree level: the highest qualification of 33% of adults
Highest qualification, residents 16 and over, Census 2021.
Highest qualification · residents 16 and over
33% of Warnham’s adults have a degree-level qualification, against 34% across England’s towns; 17% have none (18%).
Nearby, 1 of 7 towns have older populations than Warnham
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 |
|---|---|---|---|---|---|
| Warnham | 834 | — | 52.2 | 30% | 22% |
| Broadbridge Heath | 6,357 | 1.6 mi | 36.2 | 11% | 40% |
| Horsham | 50,211 | 2.2 mi | 43.8 | 21% | 27% |
| Slinfold | 1,163 | 2.7 mi | 49.1 | 25% | 27% |
| Rudgwick | 2,145 | 4.2 mi | 49.1 | 25% | 28% |
| Southwater | 11,204 | 4.3 mi | 38.9 | 15% | 33% |
| Mannings Heath | 1,137 | 4.4 mi | 53.7 | 31% | 23% |
| Barns Green | 1,107 | 4.5 mi | 46.9 | 23% | 27% |
Health, work and homes have their own pages
What this data can and can’t tell you
- “West Sussex’s towns” and “England’s towns” mean their built-up areas. Census comparisons pool every built-up area in West Sussex (or England), summed the same way as Warnham’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 Warnham’s residents
What is the population of Warnham?
The 2021 Census counted 834 people in Warnham’s built-up area.
What is the average age in Warnham?
The median age was 52.2 at the 2021 Census. 7.6% of residents were 15 to 24 and 30% were 65 or over.
How diverse is Warnham?
91% of residents described themselves as White British in 2021, against 73% across England’s towns and 84% across West Sussex’s towns. 8.5% were born outside the UK.
What religion are people in Warnham?
37% said they had no religion and 56% that they were Christian at the 2021 Census; 1.2% were Muslim and 3.4% didn’t answer.
Is Warnham good for families?
22% of households had dependent children in 2021, against 29% across England’s towns. Schools are on Warnham’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.