Photo: Bikeboy · CC BY-SA 2.0Below 99% of UK towns: 1.2% of households live in a flat or apartment
Across England’s towns, 18% of residents are 65 or over; in Islip, 30%. In 2021, the Census found 798 residents in the village, living in 341 households. 8.5% of households have no car or van. At 57%, the share of residents who describe themselves as Christian is higher than in 89% of UK towns.
A median age of 50.8: Islip is older than 89% of UK towns
Share of residents in each five-year age band, Census 2021.
Young people aged 15 to 24 make up 10% of residents, against 12% across England’s towns. In Irchester, the oldest of Northamptonshire’s towns by this measure, it is 25%.
Broad ages · share of residents
Women and men · all residents
52% women, 48% men
About 93 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 smaller share of residents who moved in within the year than 91% of UK towns: 6.6%
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 37% of adults here, routine and semi-routine work 23% (England’s towns: 33% and 24%). Census figures put full-time students at 4.6% in Islip. The usual figure: just over one in ten residents lived at another address a year earlier across England’s towns.
Households with dependent children: 24%, a lower share than 78% of UK towns
Household make-up at the 2021 Census. Each square is 1% of households.
Against Northamptonshire’s towns and England’s towns
People per household
England’s towns.
Here 31% of households are one person living alone, where the figure across England’s towns is 30%. As a reference point, 29% of households have dependent children across England’s towns. On average, 2.3 people share a household.
More detached houses than 70% of UK towns: 37% of households
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
Across Islip, a fifth of households live in a terraced house. 1.2% of households live in a flat, less than in 99% of UK towns; 37% in a detached house, against 21% across England’s towns.
More residents whose main language is English than 99% of UK towns: 99%
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 the Americas, Oceania and elsewhere (1.5%), then in EU countries (1%). On residents born outside the UK, Islip sits lower than 84% of UK towns: 3.5%. Across England’s towns, the share of residents whose main language is English is 90%.
96% of residents describe themselves as White British, a share 89% of UK towns don’t reach
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 Islip · Northamptonshire’s towns 77% · England’s towns 73%.
Religion · all residents
Residents with no religion make up 37%, close to the figure across England’s towns. As a yardstick, 73% of residents describe themselves as White British across England’s towns. Of the other groups, the largest are Other White (1.6%), Mixed or multiple (1.4%) and Pakistani (0.1%).
Adults who have never married make up 26% in Islip, less than in 88% 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
For 18 residents, unpaid care runs to 50 hours or more a week. Islip has more married adults and civil partners than 71% of UK towns, at 51%. Across England’s towns, the share of adults who have never married is 39%. Little separates the share of unpaid carers here, 8.4%, from the figure across England’s towns.
The share of adults with a degree-level qualification: 30%
Highest qualification, residents 16 and over, Census 2021.
Highest qualification · residents 16 and over
Islip’s adults: 30% with a degree-level qualification and 23% with none, against 34% and 18% across England’s towns.
Islip is younger than 3 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
- “Northamptonshire’s towns” and “England’s towns” mean their built-up areas. Census comparisons pool every built-up area in Northamptonshire (or England), summed the same way as Islip’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 Islip’s residents
What is the population of Islip?
The 2021 Census counted 798 people in Islip’s built-up area.
What is the average age in Islip?
The median age was 50.8 at the 2021 Census. 10% of residents were 15 to 24 and 30% were 65 or over.
How diverse is Islip?
96% of residents described themselves as White British in 2021, against 73% across England’s towns and 77% across Northamptonshire’s towns. 3.5% were born outside the UK.
What religion are people in Islip?
37% said they had no religion and 57% that they were Christian at the 2021 Census; 0.3% were Muslim and 4.8% didn’t answer.
Is Islip good for families?
24% of households had dependent children in 2021, against 29% across England’s towns. Schools are on Islip’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.