Photo: Jaggery · CC BY-SA 2.0A higher share of households in terraced houses than 99% of UK towns, at 76%
Here 98% of residents describe themselves as White British, where the figure across Wales’s towns is 90%. At the 2021 Census New Tredegar was home to 3,280 people in 1,484 households. On the census count, 38% of adults are married or in a civil partnership. Few places have as many households without a car or van: 31% here, more than in 96% of UK towns.
What the Census says about New Tredegar’s people
Fewer people than in 2011
ONS mid-year estimates put New Tredegar at 3,400 in 2011 and 3,100 in 2024, down 10%, against 4% for Wales: slower growth than in 99% of UK towns. Since 2011 ↓
More with no religion than most
61% of residents answered “no religion” in 2021 and 32% Christian, against 47% and 43% across Wales’s towns. Ethnicity & religion ↓
Written from the data on this page: ONS Census 2021 (output areas summed to the 2022 built-up area) and ONS mid-year population estimates.
Since 2011, New Tredegar has changed by −10%, slower than 99% of UK towns
ONS mid-year estimates, each year indexed to mid-2011 = 100. New Tredegar’s figure is the small areas (2021 LSOAs) that make up the town.
People, mid-2011 = 100
Change by age, 2011 to 2024
About 3,400 people in 2011; 3,100 in 2024.
By age, the 45 to 64 group changed most (+2%) and the 0 to 15 group least (−19%).
Younger than 76% of UK towns: half of New Tredegar is under 40.8
Share of residents in each five-year age band, Census 2021.
More residents are 55–59 than any other five-year age: 7.6% of residents. 19% of residents are 65 or over, a lower share than in 70% of UK towns. In New Tredegar, just over one in ten residents are aged 15 to 24, beside 12% across Wales’s towns.
Median age of UK towns of 2,500+
■ New Tredegar, 40.8. The typical town is 44.4.
Broad ages · share of residents
Women and men · all residents
51% women, 49% men
About an even split. Across Wales, 51% of residents are women.
Below 96% of UK towns: 6.1% of residents lived at another address a year earlier
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%.
Full-time students make up 5.1%, against 8% across Wales’s towns. Against that, nearly one in ten residents lived at another address a year earlier across Wales’s towns.
The Census was taken on 21 March 2021, in term time, so students were counted at their term addresses.
36% of households are one person living alone, a share 93% of UK towns don’t reach
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.
Households average 2.2 people, against 2.3 across Wales’s towns. On average, nearly a third of households are one person living alone across Wales’s towns. The share of households with dependent children stands at 28%.
7.5% of households live in a detached house, fewer than in 97% 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
By its share of households in flats (8.7%), New Tredegar is below 62% of UK towns. As a reference point, nearly a quarter of households live in a detached house across Wales’s towns.
Below 99% of UK towns: 1.6% of residents were born outside the UK
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%
Main language · residents aged 3 and over
The share of residents whose main language is English tops 96% of UK towns: 99%. By birthplace, the largest groups from abroad were born in EU countries (0.6%) and in the Middle East and Asia (0.6%). The wider picture: 7.4% of residents were born outside the UK across Wales’s towns.
6.4% of residents speak Welsh in New Tredegar
Welsh language skills, residents aged 3 and over, Census 2021.
Welsh language skills · residents aged 3 and over
Some 203 people here aged 3 and over said in 2021 that they can speak Welsh, 6.4% of the total, against 16% across Welsh towns: fewer than in 98% of them. In Gwent, Abertridwr and Senghenydd has the highest share (14%).
New Tredegar: 61% of residents said they have no religion, above 99% 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: 98% of New Tredegar · Gwent’s towns 91% · Wales’s towns 90%.
Religion · all residents
32% of residents describe themselves as Christian, against 43% across Wales’s towns. The comparison figure for residents with no religion is 47% across Wales’s towns.
Above 94% of UK towns: 43% of adults have never married or formed a civil partnership
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
Across Wales’s towns, the share of unpaid carers is 10%; New Tredegar has 11%. 142 residents care, unpaid, for at least 50 hours a week. Set beside that, 38% of adults have never married or formed a civil partnership across Wales’s towns.
Among adults, 18% hold a degree-level qualification
Highest qualification, residents 16 and over, Census 2021.
Highest qualification · residents 16 and over
Degree-level qualifications are held by 18% of adults in New Tredegar (Wales’s towns: 31%), and no qualification by 34% (Wales’s towns: 20%).
Of 514 UK towns its size (2,500 to 4,000 people), the 67th youngest
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 New Tredegar in age: Denholme (40.7), Drayton (40.8), Silverstone (40.9) and Penyffordd (40.9).
5 in 7 nearby towns have a higher median age than New Tredegar
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 |
|---|---|---|---|---|---|
| New Tredegar | 3,280 | — | 40.8 | 19% | 28% |
| Markham | 1,443 | 1.8 mi | 37.2 | 18% | 35% |
| Abertysswg | 1,424 | 1.8 mi | 41.2 | 19% | 30% |
| Aberbargoed | 4,412 | 2.1 mi | 37.8 | 16% | 33% |
| Bargod | 8,034 | 2.3 mi | 41.4 | 21% | 28% |
| Pontlottyn | 1,832 | 2.4 mi | 45.2 | 20% | 24% |
| Fochriw | 1,148 | 2.8 mi | 43.2 | 19% | 29% |
| Cwm | 2,507 | 2.8 mi | 44.8 | 22% | 25% |
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 New Tredegar’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. New Tredegar’s trend uses the small areas (2021 LSOAs) with most of their people inside it: 3,103 people in 2021, against 3,280 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 New Tredegar’s residents
What is the population of New Tredegar?
The 2021 Census counted 3,280 people in New Tredegar’s built-up area. The ONS estimates the same small areas held 3,100 people in mid-2024, 10% fewer than in 2011.
What is the average age in New Tredegar?
The median age was 40.8 at the 2021 Census, younger than 76% of UK towns. 11% of residents were 15 to 24 and 19% were 65 or over.
How diverse is New Tredegar?
98% of residents described themselves as White British in 2021, against 90% across Wales’s towns and 91% across Gwent’s towns. 1.6% were born outside the UK.
What religion are people in New Tredegar?
61% said they had no religion and 32% that they were Christian at the 2021 Census; 0.3% were Muslim and 6.3% didn’t answer.
Is New Tredegar good for families?
28% of households had dependent children in 2021, against 27% across Wales’s towns. Schools are on New Tredegar’s schools page.
How many people speak Welsh in New Tredegar?
203 residents aged 3 and over, 6.4%, 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.