Photo: Jaggery · CC BY-SA 2.0More people live alone than in 89% of UK towns: 35% of households
By its share of residents aged 65 and over (26%), Monmouth is above nearly four fifths of UK towns. Compared with other places, households in detached houses are common here: 37%, more than in 70% of UK towns. This Gwent town is home to 10,330 residents in 4,708 households, by the 2021 Census. On the census count, 16% of households live in a flat or apartment.
A change of +5% since 2011 leaves Monmouth behind 60% of UK towns
ONS mid-year estimates, each year indexed to mid-2011 = 100. Monmouth’s figure is the small areas (2021 LSOAs) that make up the town.
People, mid-2011 = 100
Change by age, 2011 to 2024
About 10,500 people in 2011; 11,100 in 2024.
Change by age ran from +30% for the 65 and over to −8% for the 0 to 15. No year added more people than mid-2019 to mid-2020: 300.
A median age of 47.9: Monmouth is older than 74% of UK towns
Share of residents in each five-year age band, Census 2021.
55–59 is the most common age band: 7.9% of residents. Higher than in just over two thirds of UK towns: 10% of residents are aged 15 to 24. In Abergavenny, the oldest of Gwent’s towns by this measure, it is 27%.
Median age of UK towns of 2,500+
■ Monmouth, 47.9. The typical town is 44.4.
Broad ages · share of residents
Women and men · all residents
52% women, 48% men
About 93 men for every 100 women. Across Wales, 51% of residents are women. Women live longer than men, so towns with many older residents have more women.
5.6% of adults are full-time students, a share 77% of UK towns don’t reach
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 25% (Wales’s towns: 29% and 27%). Compared with other places, residents who moved in within the year are common here: 10%, more than in 79% of UK towns. For comparison, 8% of adults are full-time students across Wales’s towns.
The Census was taken on 21 March 2021, in term time, so students were counted at their term addresses.
Monmouth households average 2.2 people, smaller than in 84% of UK towns
Household make-up at the 2021 Census. Each square is 1% of households.
Against Gwent’s towns and Wales’s towns
People per household
Wales’s towns.
27% of households have dependent children across Wales’s towns, against 25% in Monmouth. Compared with other places, shared households of unrelated adults are scarce here: 1.7%, fewer than in 85% of UK towns.
A smaller share of households in terraced houses than 58% of UK towns: 18%
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
The share of households without a car or van stands at 16%. Households in terraced houses: 29% across Wales’s towns, for comparison.
98% of residents have English as their main language, below 52% 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 10%
When those born abroad arrived
Main language · residents aged 3 and over
Most residents from abroad were born in EU countries (2.7%) or in the Middle East and Asia (2%). Measured more widely, 96% of residents have English as their main language across Wales’s towns. Across Wales’s towns, 23% of those born abroad arrived in 2017 or later; here, 23%.
A Welsh-speaking share of 7.9% in Monmouth
Welsh language skills, residents aged 3 and over, Census 2021.
Welsh language skills · residents aged 3 and over
Across Welsh towns, 16% of residents can speak Welsh; here 798 people, 7.9% of those aged 3 and over, said they can: fewer than in 89% of Welsh towns. Top of Gwent: Abertridwr and Senghenydd, at 14%.
Residents with no religion make up 42% in Monmouth, more than in 59% 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: 93% of Monmouth · Gwent’s towns 91% · Wales’s towns 90%.
Religion · all residents
Compared with 43% across Wales’s towns, nearly half of residents describe themselves as Christian here. Measured more widely, 47% of residents said they have no religion across Wales’s towns. Beyond White British, the biggest groups are Other White (3.3%), Mixed or multiple (1.1%) and Chinese (0.9%).
Adults who have never married: 30%, a lower share than 65% 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
There is little gap on unpaid carers: 10%, about the same as across Wales’s towns. As a yardstick, 38% of adults have never married or formed a civil partnership across Wales’s towns. 317 people care, unpaid, for 50 hours or more a week.
Degree-level qualifications reach 39% of adults
Highest qualification, residents 16 and over, Census 2021.
Highest qualification · residents 16 and over
Across Wales’s towns, 31% of adults have a degree-level qualification; in Monmouth, 39%, and 16% have none, against 20%.
105th highest median age among 455 UK towns of 7,000 to 14,000
Median age, Census 2021. Hover a dot for its students and residents born abroad; click for its page.
Stoke Gifford is the youngest (27.8); Seaton the oldest (61). Nearest to Monmouth in age: Borrowash (47.7), Corfe Mullen (47.8), Caerleon (47.9) and Tiptree (48).
Monmouth 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.
| Town | People | Away | Median age | 65+ | Homes with children |
|---|---|---|---|---|---|
| Monmouth | 10,330 | — | 47.9 | 26% | 25% |
| Berry Hill | 2,211 | 4.1 mi | 51.7 | 28% | 23% |
| Coleford | 5,023 | 4.3 mi | 47.2 | 25% | 22% |
| Broadwell and Coalway | 3,304 | 5.1 mi | 47.1 | 24% | 26% |
| Welsh Bicknor | 1,988 | 6.1 mi | 50.2 | 22% | 25% |
| Raglan | 1,176 | 6.7 mi | 56 | 36% | 20% |
| Bream | 3,117 | 7.4 mi | 48.6 | 24% | 26% |
| Ruardean | 1,195 | 7.6 mi | 52.4 | 29% | 20% |
Health, work and homes have their own pages
What this data can and can’t tell you
- The Census was taken in a lockdown, in term time. 21 March 2021 fell in term time, and students were asked to give their term-time address, so most were counted where they study. Some may have been living with family that day.
- “Gwent’s towns” and “Wales’s towns” mean their built-up areas. Census comparisons pool every built-up area in Gwent (or Wales), summed the same way as Monmouth’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. Monmouth’s trend uses the small areas (2021 LSOAs) with most of their people inside it: 11,053 people in 2021, against 10,330 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 Monmouth’s residents
What is the population of Monmouth?
The 2021 Census counted 10,330 people in Monmouth’s built-up area. The ONS estimates the same small areas held 11,100 people in mid-2024, 5% more than in 2011.
What is the average age in Monmouth?
The median age was 47.9 at the 2021 Census, older than 74% of UK towns. 10% of residents were 15 to 24 and 26% were 65 or over.
How diverse is Monmouth?
93% of residents described themselves as White British in 2021, against 90% across Wales’s towns and 91% across Gwent’s towns. 7% were born outside the UK.
What religion are people in Monmouth?
42% said they had no religion and 49% that they were Christian at the 2021 Census; 0.5% were Muslim and 7% didn’t answer.
Is Monmouth good for families?
25% of households had dependent children in 2021, against 27% across Wales’s towns. Schools are on Monmouth’s schools page.
How many people speak Welsh in Monmouth?
798 residents aged 3 and over, 7.9%, said they can speak Welsh at the 2021 Census, against 16% across Welsh towns.
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, TS032) · 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.