Montmartin ranks above 99% of compared French towns on couples with children: 57%
In the typical compared French town, 32% of households are headed by a retired person; in Montmartin, 17%. The town had 294 residents in 100 households at the 2023 Census. Locally, 0.9% of households have no car. Compared with other places, empty homes are scarce here: 4.1%, fewer than in 86% 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 Montmartin
A town of families
57% of households are couples with children and 4.4% single parents with children; 26% of residents are under 15. Households ↓
Growing fast
Montmartin had 229 residents at the 2012 census and 294 in 2023, up 28%: faster growth than in 96% of compared French towns. Population ↓
A young town
Half of Montmartin’s residents are under 37.1 and half over; the median of compared French towns is 44. 26% are under 15 and 10% are 65 or older. Ages ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
A +28% change since 2012: faster than 96% 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
In two steps, +14% to 2017 and +12% after, the town’s change compares with +5% for the median compared French town and +2% in Oise.
A smaller share of residents aged 65 and over than 99% of compared French towns: 10%
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Montmartin 37.1. The median compared French town: 44.
The figure for residents aged 15 to 24 is 9.6% in Montmartin and 11% in the typical compared French town. Add to that, half of the town’s residents are under 37.1, younger than in 91% of compared French towns. Typically, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
47% women, 53% men
About 114 men for every 100 women. Median share of women: Oise 51.7%, France 51.8%.
Montmartin sits below 99% of compared French towns for one-person households (13%)
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
4.4% of households are single parents, against 10% in the typical compared French town. On average, 35% of households are one person living alone in the typical compared French town. Average household size: 2.8 people.
A smaller share of households in social housing than 99% of compared French towns: 0.9%
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
15% of households have been in place 30 years or more; 6.3% moved in within the last two years. Against that, just over one in ten households rent social housing (HLM) in the typical compared French town.
At the median, €29,650 a year to live on
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.
At €29,650 a year per consumption unit, the median standard of living here is higher than in 83% of compared French towns.
28% of households are headed by a manual worker, a share 99% of compared French towns don’t reach
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 the typical compared French town, nearly one in ten households are headed by a manager or professional; in Montmartin, 14%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
0% of Montmartin’s residents are immigrants
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.
Foreign nationals are rarer here than in 99% of compared French towns.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Below 93% of compared French towns: 20% of residents 15 and over are single
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
Higher than in 50% of compared French towns: 43% of residents 15 and over are married. In the typical compared French town, single residents come to 25%.
Adults with no qualification make up 12% in Montmartin, less than in 88% 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
Graduates of higher education: 31% of the total. Adults with no qualification make up 19% in the typical compared French town.
The youngest of 41 French towns of 294 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 Montmartin (37.1), the oldest Prayssac (62.3).
Montmartin is younger than every town around it
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Montmartin | 37.1 | 10% | 0% | 0% |
| Estrées-Saint-Denis 3,664 · 3.3 mi | 44.4 | 22% | 1.2% | 4.1% |
| Venette 2,758 · 5.7 mi | 41.1 | 19% | 1.9% | 7.9% |
| Margny-lès-Compiègne 8,677 · 6.2 mi | 37.8 | 16% | 2% | 14% |
| Compiègne 40,761 · 6.7 mi | 37.6 | 19% | 2.2% | 17% |
| Longueil-Annel 2,586 · 7.6 mi | 42 | 20% | 1% | 6.6% |
| Thourotte 4,463 · 8.3 mi | 47.2 | 27% | 0.8% | 6.8% |
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 Montmartin
What is the population of Montmartin?
294 at INSEE’s 2023 census, 28% more than in 2012 (229).
How old are Montmartin’s residents?
The median age is 37.1, younger than 91% of compared French towns. 30% are under 18 and 10% 65 or older.
How many second homes are there in Montmartin?
0, with occasional dwellings: 0% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Montmartin?
INSEE counts 0 immigrants (born abroad, not French at birth), 0% of residents, and 0 foreign nationals (0%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Montmartin?
€29,650 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.