Households in social housing: 33%, a higher share than 94% of compared French towns
Here 60% of homes are flats, where the figure in the typical compared French town is 30%. At the 2023 Census Clermont was home to 10,564 people in 4,990 households. Put another way, about one in four: nearly a quarter of households are headed by a retired person. The median age here is 39.4, lower than in just over four fifths of compared French towns.
Throughout this page, the Oise median and the France median are the median of compared communes (those with an overall grade), each figure its own median. Source: INSEE, census 2023.
What stands out about the people of Clermont
Social housing
33% of households rent from a social landlord (HLM), 26% rent privately and 39% own their home. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
−3% since 2012, a pace below 81% of compared French towns
Residents at INSEE’s last three censuses, each recast in the 2026 commune boundaries. France has no yearly estimate by commune between censuses.
2012 to 2023
2017 to 2023
Over the same years the median compared French town changed +5%, the median Oise town +2%. From 2012 to 2017 the change was −7%; from 2017 to 2023, +4%.
Residents aged 65 and over: 17%, a lower share than 80% of compared French towns
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Clermont 39.4. The median compared French town: 44.
Residents aged 15 to 24 make up 12%, against 11% in the typical compared French town. Set beside that, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
52% women, 48% men
About 93 men for every 100 women. Median share of women: Oise 51.7%, France 51.8%.
Single-parent households make up 14% in Clermont, more than in 93% of compared French towns
A household is everyone who shares a main home (résidence principale). Household types come from INSEE’s fuller sample of a quarter of census forms.
Against the Oise median and the France median
Living alone · share
A household here holds 2 people on average. Lower than in 78% of compared French towns: 19% of households are couples with children. For single-parent households, the comparison in the typical compared French town is 10%. 46% of households are one person living alone, against 35% in the typical compared French town.
In Clermont, 18% of households have no car, more than in 79% of compared French towns
Every home the census counted: main residences, second homes and occasional dwellings (INSEE counts them together), and empty homes. Owning and renting are on Cost of living.
All homes · share of homes
Type of home
Cars per household · share of households
By its share of empty homes (5.6%), Clermont is below 65% of compared French towns. Households without a car make up 11% in the typical compared French town. 14% of households arrived within the last two years, while 12% have stayed 30 years or more. Compared with other places, second homes are scarce here: 1.5%, fewer than in 64% of compared French towns.
Median living standard: €23,800 a year
The standard of living (niveau de vie) is a household’s disposable income after taxes and benefits, divided by its consumption units (UC) to allow for its size and make-up: 1 for the first adult, 0.5 for each other person 14 or older, 0.3 for each child under 14.
Medians of compared communes. Source: INSEE, Filosofi 2023.
Half of Clermont’s residents live in households with a standard of living below €23,800 a year per consumption unit, and half above: lower than in 74% of compared French towns. Poverty touches 19.0% of residents.
A larger share of households headed by a manager or professional than 62% of compared French towns: 12%
Households by the socio-professional group (PCS) of their reference person, INSEE’s own categories. Jobs and commuting are on the Work & commute page.
Households by reference person’s group · share of households
Locally, 14% of households are headed by a manual worker. In the typical compared French town, nearly one in ten households are headed by a manager or professional.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Clermont sits above 73% of compared French towns for foreign nationals (7.7%)
INSEE publishes two measures, which overlap but aren’t the same. Neither is the UK’s “born abroad”.
Share of residents · census 2023
Immigrant (immigré)
Born abroad, not French at birth. Someone stays an immigrant after becoming French. A French citizen born abroad (for example in Algeria before 1962) is not one.
Foreign national (étranger)
Not a French citizen today, wherever born. A child born in France to foreign parents can be a foreign national without being an immigrant.
8.5% of residents are immigrants, against 6.5% in the typical compared French town. The median compared commune in Oise has 7.4%; immigrants here make up a share higher than in 63% of compared French towns. Across the comparison, 4.3% of residents are foreign nationals in the typical compared French town.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Married residents make up 29% in Clermont, less than in 98% of compared French towns
Residents 15 and over by how they live: the census asks both the legal status and whether people live as a couple.
Residents 15 and over · share
By its share of single residents (36%), Clermont is above 93% of compared French towns. In the typical compared French town, the share of married residents is 43%.
Clermont: 22% of adults out of school have no qualification, above 67% of compared French towns
Highest diploma of residents 15 and over who have left education, in French terms: the levels don’t map one-to-one to UK or U.S. ones.
Highest diploma · 15 and over, out of education
In Clermont, 33% of adults out of school hold a higher-education qualification, beside 30% in the typical compared French town. As a reference point, 19% of adults out of school have no qualification in the typical compared French town.
The 8th youngest of 41 French towns of 10,425 to 10,710 people
The 40 compared French towns nearest in population, by median age. Hover for each one’s second homes and immigrants; click for its page.
Charvieu-Chavagneux is the youngest (35.9); La Londe-les-Maures the oldest (59.6).
Around Clermont, 5 of 6 towns have a higher median age
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Clermont | 39.4 | 17% | 1.5% | 8.5% |
| Fitz-James 2,514 · 1.1 mi | 42.4 | 19% | 0.5% | 6.6% |
| Breuil-le-Vert 3,183 · 1.1 mi | 45.4 | 23% | 0.7% | 3.7% |
| Agnetz 3,058 · 1.7 mi | 44.4 | 18% | 1% | 3% |
| Rantigny 2,524 · 3.7 mi | 39.9 | 18% | 0.7% | 8.8% |
| Liancourt 6,785 · 4.3 mi | 38.4 | 17% | 0.9% | 12% |
| Cauffry 2,649 · 4.4 mi | 41.5 | 19% | 0.5% | 8.6% |
Health, work, housing and schools
What this data can and can’t tell you
- Census 2023. INSEE’s census is a rolling survey: a fifth of small communes each year, 8% of homes in large ones each year. “2023” pools the surveys of 2021 to 2025, so the figures describe the town around 2023, not on one day.
- Medians of compared communes. The comparisons are the median of the département’s compared communes and of France’s (those with an overall grade), each figure its own median: not the total for the département or for France, which large cities pull towards their own figures.
- Immigrants and foreign nationals. INSEE’s two measures: an immigrant was born abroad without French nationality; a foreign national isn’t French today. Neither is a count of people born abroad, which INSEE doesn’t publish by commune.
- Second homes. Homes used for holidays or weekends, with occasional dwellings (kept for work, for example), which INSEE counts together. Their owners are counted where they live, not here.
- Standard of living. INSEE’s Filosofi: disposable income per consumption unit, from tax and benefit files, 2023. The poverty rate is the share of residents below 60% of France’s median. Not published for the smallest communes.
- What France doesn’t ask. The French census asks nothing about ethnicity, religion, language or health, so this page has no such section.
Questions about who lives in Clermont
What is the population of Clermont?
10,564 at INSEE’s 2023 census, 3% fewer than in 2012 (10,862).
How old are Clermont’s residents?
The median age is 39.4, younger than 82% of compared French towns. 22% are under 18 and 17% 65 or older.
How many second homes are there in Clermont?
79, with occasional dwellings: 1.5% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Clermont?
INSEE counts 900 immigrants (born abroad, not French at birth), 8.5% of residents, and 810 foreign nationals (7.7%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Clermont?
€23,800 a year per consumption unit in 2023 (median of compared French towns €25,970); 19.0% of residents live below the poverty line. Source: INSEE, Filosofi.
Sources: INSEE, census 2023 (population, ages, households, homes, marital status, diplomas, immigrants, foreign nationals, employment), 2026 geography · INSEE, Filosofi 2023 (standard of living, poverty) · IGN Admin Express (boundaries) · Medians and percentiles: TownRatings, over compared French towns, updated October 30, 2026. Under the Licence Ouverte / Open Licence 2.0 (Etalab).
Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.