In Gas, 2% of households have no car, fewer than in 99% of compared French towns
Nearly a quarter of households are headed by a retired person; in the typical compared French town the figure is 32%. Gas is home to 718 residents in 310 households, by the 2023 Census. In Gas, 5.3% of homes are flats. Few places have as many second homes: 5.4% here, more than in 79% of compared French towns.
Throughout this page, the Eure-et-Loir 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 Gas
A town of families
34% of households are couples with children and 4.8% single parents with children; 14% of residents are under 15. Households ↓
Fewer residents than in 2012
Gas had 756 residents at the 2012 census and 718 in 2023, down 5%: slower growth than in 88% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
−5% since 2012, a pace below 88% 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
Half of Gas is over 46.7, older than 67% 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
■ Gas 46.7. The median compared French town: 44.
Residents aged 15 to 24 make up about one in ten here (10%). Gas sits close to the norm on residents aged 65 and over: 22%, about the same as in the typical compared French town.
Women and men · all residents
49% women, 51% men
About an even split. Median share of women: Eure-et-Loir 52.3%, France 51.8%.
25% of households are one person living alone, below 94% 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 Eure-et-Loir median and the France median
Living alone · share
10% of households are single parents in the typical compared French town, against 4.8% in Gas. The comparison figure for one-person households is 35% in the typical compared French town. Here, just over a third of households are couples with children.
Empty homes: 5.2%, a lower share than 72% 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
Recent arrivals (under two years) make up nearly one in ten households; long-stayers (30 years or more) 23%. Households in social housing are rarer here than in 99% of compared French towns. By way of comparison, 6.7% of homes stand empty in the typical compared French town.
The median resident lives on €31,040 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.
At €31,040 a year per consumption unit, the median standard of living here is higher than in 88% of compared French towns.
Only 11% of households are headed by a manual worker in Gas
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 manager or professional: 13%, above 68% of compared French towns. On average, 14% of households are headed by a manual worker in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
A lower share of immigrants than 77% of compared French towns, at 3.6%
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.
2.2% of residents are foreign nationals; in the typical compared French town the figure is 4.3%. As a reference point, 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.
In Gas, 52% of residents 15 and over are married, more than in 97% 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
A quarter of residents 15 and over are single in the typical compared French town, against 19% in Gas. The benchmark for married residents in the typical compared French town: 43%.
A smaller share of adults with no qualification than 74% of compared French towns: 15%
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. To put it in context, 19% of adults out of school have no qualification in the typical compared French town.
The 18th oldest of 41 French towns of 718 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).
No nearby town is as old as Gas
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
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 Gas
What is the population of Gas?
718 at INSEE’s 2023 census, 5% fewer than in 2012 (756).
How old are Gas’ residents?
The median age is 46.7, older than 67% of compared French towns. 19% are under 18 and 22% 65 or older.
How many second homes are there in Gas?
19, with occasional dwellings: 5.4% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Gas?
INSEE counts 26 immigrants (born abroad, not French at birth), 3.6% of residents, and 16 foreign nationals (2.2%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Gas?
€31,040 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.