Couples with children make up 36% in Fresnoy-en-Thelle, more than in 95% of compared French towns
Here 3% of households have no car, where the figure in the typical compared French town is 11%. On the census count, 9.4% of homes are flats. 13% of residents are 15 to 24, more than in 82% of compared French towns. The 2023 Census counted 871 residents in 350 households.
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 Fresnoy-en-Thelle
A town of families
36% of households are couples with children and 9.9% single parents with children; 17% of residents are under 15. Households ↓
Fewer residents than in 2012
Fresnoy-en-Thelle had 943 residents at the 2012 census and 871 in 2023, down 8%: slower growth than in 94% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Slower than most: −8% since 2012, behind 94% 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
For comparison, the median compared French town changed +5% and the median Oise town +2%.
17% of residents are 65 or over, below 84% 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
■ Fresnoy-en-Thelle 42.9. The median compared French town: 44.
With a median age of 42.9, Fresnoy-en-Thelle is younger than nearly three fifths of compared French towns. Typically, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
52% women, 48% men
About 92 men for every 100 women. Median share of women: Oise 51.7%, France 51.8%.
Fewer one-person households than 97% of compared French towns: 23%
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
Households average 2.5 people. By way of comparison, just over a third of households are one person living alone in the typical compared French town. Single-parent households make up 9.9%, close to the figure in the typical compared French town.
Fresnoy-en-Thelle ranks below 83% of compared French towns on empty homes: 4.3%
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
In Fresnoy-en-Thelle, 0.7% of homes are second homes, beside 2.1% in the typical compared French town. The census found that 8.6% of households rent social housing (HLM) locally. As a yardstick, 6.7% of homes stand empty in the typical compared French town.
Half of residents have a standard of living above €29,970 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.
The midpoint of living standards here is €29,970 a year per consumption unit, higher than in 84% of compared French towns.
In Fresnoy-en-Thelle, 13% of households are headed by a manual worker, fewer than in 58% of compared French towns
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
In Fresnoy-en-Thelle, 32% of households are headed by a retired person. This Oise town sits close to the norm on households headed by a manager or professional: 9.9%, about the same as in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Immigrants make up 4.6% in Fresnoy-en-Thelle, less than in 67% of compared French towns
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.
About one in 22: that is how common foreign nationals are in Fresnoy-en-Thelle (4.6%). On average, 6.5% of residents are immigrants 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.
Above 88% of compared French towns: 49% of residents 15 and over are married
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
For Fresnoy-en-Thelle, the census puts single residents at 24%. Against that, 43% of residents 15 and over are married in the typical compared French town.
18% of adults out of school have no qualification, below 56% 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
30% of adults out of school hold a higher-education qualification, or about one in three. Elsewhere, nearly a fifth of adults out of school have no qualification in the typical compared French town.
Among 41 French towns of 871 to 2,582 people, the 11th youngest
The 40 compared French towns nearest in population, by median age. Hover for each one’s second homes and immigrants; click for its page.
Villejust is the youngest (37.2); Prayssac the oldest (62.3).
Every neighbor is younger than Fresnoy-en-Thelle
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Fresnoy-en-Thelle | 42.9 | 17% | 0.7% | 4.6% |
| Neuilly-en-Thelle 4,127 · 1.8 mi | 36.7 | 14% | 0.9% | 6.4% |
| Chambly 9,959 · 2.5 mi | 40.1 | 17% | 0.9% | 8.6% |
| Bernes-sur-Oise 2,684 · 2.9 mi | 37.8 | 14% | 0.4% | 15% |
| Bornel 4,832 · 3.2 mi | 40.7 | 17% | 1.4% | 6.6% |
| Persan 14,359 · 3.4 mi | 32.9 | 10% | 0.3% | 27% |
| Bruyères-sur-Oise 4,921 · 4 mi | 35.2 | 9.7% | 0.6% | 13% |
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 Fresnoy-en-Thelle
What is the population of Fresnoy-en-Thelle?
871 at INSEE’s 2023 census, 8% fewer than in 2012 (943).
How old are Fresnoy-en-Thelle’s residents?
The median age is 42.9, younger than 59% of compared French towns. 22% are under 18 and 17% 65 or older.
How many second homes are there in Fresnoy-en-Thelle?
3, with occasional dwellings: 0.7% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Fresnoy-en-Thelle?
INSEE counts 40 immigrants (born abroad, not French at birth), 4.6% of residents, and 40 foreign nationals (4.6%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Fresnoy-en-Thelle?
€29,970 a year per consumption unit in 2023 (median of compared French towns €25,970). 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 November 9, 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.