Fewer households without a car than 99% of compared French towns: 2%
4.1% of homes are flats (typical compared French town: 30%). One-person households come to 20% in Fontaine-Chaalis, about two in ten. At 26%, the share of households headed by a retired person is lower than in just over four fifths of compared French towns. In 2023, the Census found 318 residents locally, living in 140 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 Fontaine-Chaalis
One home in seven is a second home
The census counted 24 second homes and occasional dwellings in Fontaine-Chaalis, 14% of its 170 homes: higher than in 91% of compared French towns. 100% of them are houses. Their owners live elsewhere, so they aren’t in the population figures on this page. Homes & cars ↓
Fewer residents than in 2012
Fontaine-Chaalis had 374 residents at the 2012 census and 318 in 2023, down 15%: slower growth than in 99% of compared French towns. Population ↓
Many graduates
59% of residents 15 and over who have left education hold a diploma above the bac, 27% a master’s or more (bac+5). Qualifications ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Fontaine-Chaalis sits above 91% of compared French towns for second homes (14%)
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
Turnover: 7% of households moved in less than two years ago, and 18% have lived in their home 30 years or more. Households in social housing are rarer here than in 99% of compared French towns. By way of comparison, 2.1% of homes are second homes in the typical compared French town. Fontaine-Chaalis sits close to the norm on empty homes: 6.1%, about the same as in the typical compared French town.
A −15% change since 2012: slower than 99% 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
From 2012 to 2017 the change was −7%; from 2017 to 2023, −8%. Over the same years the median compared French town changed +5%, the median Oise town +2%.
Fewer residents aged 65 and over than 84% of compared French towns: 17%
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Fontaine-Chaalis 47.4. The median compared French town: 44.
The median age in Fontaine-Chaalis is 47.4, higher than in 71% of compared French towns. Against that, 22% of residents are 65 or over in the typical compared French town. Residents aged 15 to 24 come to 11% in the town, about one in ten.
Women and men · all residents
48% women, 52% men
About 107 men for every 100 women. Median share of women: Oise 51.7%, France 51.8%.
In Fontaine-Chaalis, 11% of households are single parents, more than in 68% 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
There are 2.3 people in the average household. Lower than in 53% of compared French towns: 25% of households are couples with children. Across the comparison, 10% of households are single parents in the typical compared French town.
The median resident lives on €45,570 a year per consumption unit
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.
Per consumption unit, half of residents live on more than €45,570 a year: higher than in 99% of compared French towns.
A higher share of households headed by a manager or professional than 74% of compared French towns, at 14%
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
Households headed by a manual worker make up 11%, against 14% in the typical compared French town. For households headed by a manager or professional, the comparison in the typical compared French town is 9.4%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Immigrants make up 9% in Fontaine-Chaalis, more than in 66% 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.
The median compared commune in Oise has 7.4%; immigrants here make up a share higher than in nearly two thirds of compared French towns. 6.5% of residents are foreign nationals, or about one in 15.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Fontaine-Chaalis ranks below 98% of compared French towns on single residents: 18%
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
53% of residents 15 and over are married, against 43% in the typical compared French town. In the typical compared French town, single residents come to 25%.
Fontaine-Chaalis sits above 97% of compared French towns for graduates of higher education (59%)
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
By its share of adults with no qualification (8.5%), Fontaine-Chaalis is below 98% of compared French towns. The comparison figure for graduates of higher education is 30% in the typical compared French town.
The 15th oldest of 41 French towns of 318 to 2,582 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.
The youngest is Villejust (37.2), the oldest Prayssac (62.3).
Every neighbor is younger than Fontaine-Chaalis
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Fontaine-Chaalis | 47.4 | 17% | 14% | 9% |
| Senlis 15,157 · 5.3 mi | 42.2 | 19% | 2.9% | 12% |
| Le Plessis-Belleville 4,009 · 5.8 mi | 37.2 | 14% | 0.9% | 13% |
| Nanteuil-le-Haudouin 4,258 · 6 mi | 37.1 | 13% | 1% | 7.4% |
| Othis 6,717 · 6.4 mi | 39.5 | 14% | 0.7% | 8.6% |
| Saint-Witz 2,724 · 7.6 mi | 40.9 | 16% | 0.9% | 14% |
| Dammartin-en-Goële 11,907 · 7.6 mi | 34.8 | 10% | 0.9% | 12% |
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 Fontaine-Chaalis
What is the population of Fontaine-Chaalis?
318 at INSEE’s 2023 census, 15% fewer than in 2012 (374).
How old are Fontaine-Chaalis’ residents?
The median age is 47.4, older than 71% of compared French towns. 20% are under 18 and 17% 65 or older.
How many second homes are there in Fontaine-Chaalis?
24, with occasional dwellings: 14% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Fontaine-Chaalis?
INSEE counts 29 immigrants (born abroad, not French at birth), 9% of residents, and 21 foreign nationals (6.5%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Fontaine-Chaalis?
€45,570 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 4, 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.