Photo: Bikeboy · CC BY-SA 2.0Codicote ranks below 93% of UK towns on residents aged 15 to 24: 8%
By its share of households without a car or van (11%), Codicote is below 77% of UK towns. The 2021 Census put the town’s population at 2,677, in 1,199 households. The census found that 34% of households are one person living alone locally. At 28%, the share of households in terraced houses is higher than in 78% of UK towns.
Slower growth than 55% of UK towns: Codicote changed by +7% since 2011
ONS mid-year estimates, each year indexed to mid-2011 = 100. Codicote’s figure is the small areas (2021 LSOAs) that make up the town.
People, mid-2011 = 100
Change by age, 2011 to 2024
About 2,600 people in 2011; 2,800 in 2024.
Of the age groups, 65 and over changed most (+18%) and 16 to 29 least (−3%). The largest rise in a single year came from mid-2023 to mid-2024: 80 people.
Half of Codicote is over 47, older than 69% of UK towns
Share of residents in each five-year age band, Census 2021.
More residents are 50–54 than any other five-year age: 7.4% of residents. Nearly a quarter of residents are 65 or over, more than in 65% of UK towns. In Oaklands, the oldest of Hertfordshire’s towns by this measure, it is 28%.
Median age of UK towns of 2,500+
■ Codicote, 47. The typical town is 44.4.
Broad ages · share of residents
Women and men · all residents
52% women, 48% men
About 92 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.
Codicote sits below 63% of UK towns for full-time students (4.5%)
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%.
46% of Codicote’s adults are in managerial and professional jobs and 16% in routine and semi-routine work, against 33% and 24% across England’s towns. By way of comparison, 7.9% of adults are full-time students across England’s towns. The census found that nearly one in ten residents lived at another address a year earlier locally.
Shared households of unrelated adults make up 1.8% in Codicote, less than in 78% of UK towns
Household make-up at the 2021 Census. Each square is 1% of households.
Against Hertfordshire’s towns and England’s towns
People per household
England’s towns.
The average household has 2.2 people, against 2.4 across England’s towns. As a yardstick, 4.3% of households are unrelated adults sharing a home across England’s towns. In Codicote, just over a quarter of households have dependent children.
A town of flats: 13% of households live in one
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
In Codicote, 29% of households live in a detached house. Across the comparison, nearly a quarter of households live in a flat or apartment across England’s towns.
In Codicote, 7.6% of residents were born outside the UK, more than in 61% 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%
When those born abroad arrived
Main language · residents aged 3 and over
The newest arrivals, from 2017 or later, are 15% of those born abroad (against 21% across England’s towns). For residents born outside the UK, the comparison across England’s towns is 18%. Residents born abroad were most often born in EU countries (3.6%), then in Africa (1.7%).
Residents who describe themselves as Christian make up 53% in Codicote, more than in 70% 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: 91% of Codicote · Hertfordshire’s towns 71% · England’s towns 73%.
Religion · all residents
With residents with no religion at 38%, Codicote is behind nearly two thirds of UK towns on that count. On average, 46% of residents describe themselves as Christian across England’s towns. In Codicote, 91% of residents describe themselves as White British.
29% of adults have never married or formed a civil partnership, fewer than in 73% 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
Married adults and civil partners: 51% here and 44% across England’s towns. Adults who have never married make up 39% across England’s towns. The number giving 50 or more hours of unpaid care a week is 65.
Degree level: the highest qualification of 43% of adults
Highest qualification, residents 16 and over, Census 2021.
Highest qualification · residents 16 and over
43% of Codicote’s adults have a degree-level qualification, against 34% across England’s towns; 12% have none (18%).
255th highest median age among 514 UK towns of 2,500 to 4,000
Median age, Census 2021. Hover a dot for its students and residents born abroad; click for its page.
Ages run from 20.6 in Keele to 63.1 in West Chiltington. Nearest to Codicote in age: Sherburn (47), Marsden (47), Pucklechurch (47) and Hawkhurst (47).
3 of the 7 nearest towns are older than Codicote
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 |
|---|---|---|---|---|---|
| Codicote | 2,677 | — | 47 | 24% | 26% |
| Welwyn | 3,906 | 1.5 mi | 45.4 | 23% | 29% |
| Oaklands | 3,960 | 1.7 mi | 52.2 | 28% | 27% |
| Knebworth | 4,191 | 2.3 mi | 43.3 | 21% | 28% |
| Woolmer Green | 1,409 | 2.4 mi | 45.3 | 22% | 28% |
| Kimpton | 1,546 | 2.8 mi | 45.4 | 22% | 32% |
| Whitwell | 1,020 | 2.8 mi | 48.7 | 26% | 28% |
| Datchworth | 1,179 | 3.3 mi | 52.1 | 28% | 23% |
Health, work and homes have their own pages
What this data can and can’t tell you
- “Hertfordshire’s towns” and “England’s towns” mean their built-up areas. Census comparisons pool every built-up area in Hertfordshire (or England), summed the same way as Codicote’s figures, so households in open countryside are left out. The population trend compares with the whole county and nation.
- Estimates since 2021 are modelled. The ONS builds mid-year estimates from the Census, births, deaths and migration records. Codicote’s trend uses the small areas (2021 LSOAs) with most of their people inside it: 2,677 people in 2021, against 2,677 in the built-up area.
- 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 Codicote’s residents
What is the population of Codicote?
The 2021 Census counted 2,677 people in Codicote’s built-up area. The ONS estimates the same small areas held 2,800 people in mid-2024, 7% more than in 2011.
What is the average age in Codicote?
The median age was 47 at the 2021 Census, older than 69% of UK towns. 8% of residents were 15 to 24 and 24% were 65 or over.
How diverse is Codicote?
91% of residents described themselves as White British in 2021, against 73% across England’s towns and 71% across Hertfordshire’s towns. 7.6% were born outside the UK.
What religion are people in Codicote?
38% said they had no religion and 53% that they were Christian at the 2021 Census; 0.7% were Muslim and 6.6% didn’t answer.
Is Codicote good for families?
26% of households had dependent children in 2021, against 29% across England’s towns. Schools are on Codicote’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) · ONS mid-year population estimates for 2021 LSOAs, mid-2011 to mid-2024. 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.