Authon-la-Plaine sits above 98% of compared French towns for couples with children (39%)
In the typical compared French town, the share of households without a car is 11%; Authon-la-Plaine has 2.1%. Flats account for 2.5%. The town has fewer residents aged 65 and over than 87% of compared French towns, at 16%. There were 140 households here at the 2023 Census, home to 368 residents.
Throughout this page, the Essonne 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 Authon-la-Plaine
A town of families
39% of households are couples with children and 11% single parents with children; 21% of residents are under 15. Households ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Since 2012, Authon-la-Plaine has changed by ±0%, slower than 70% 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
The median Essonne town changed +6% and the median compared French town +5%; here the first five years brought +1% and the next six −1%.
Below 95% of compared French towns: 7.5% of residents are 15 to 24
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Authon-la-Plaine 40.6. The median compared French town: 44.
Half of Authon-la-Plaine’s residents are under 40.6, younger than in just over three quarters of compared French towns. Across the comparison, 11% of residents are 15 to 24 in the typical compared French town.
Women and men · all residents
49% women, 51% men
About an even split. Median share of women: Essonne 51.3%, France 51.8%.
A lower share of one-person households than 99% of compared French towns, at 18%
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 Essonne median and the France median
Living alone · share
There are 2.5 people in the average household. Across the comparison, 35% of households are one person living alone in the typical compared French town. Higher than in 62% of compared French towns: 11% of households are single parents.
3.1% of homes in Authon-la-Plaine are second homes
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
Set against 6.7% in the typical compared French town, 5.7% of homes stand empty in Authon-la-Plaine. In the typical compared French town, 2.1% of homes are second homes. 7.6% of households arrived within the last two years, while 22% have stayed 30 years or more. Households in social housing are rarer here than in 99% of compared French towns.
A median standard of living of €28,240 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 Authon-la-Plaine’s residents live in households with a standard of living below €28,240 a year per consumption unit, and half above: higher than in 73% of compared French towns.
14% of households are headed by a retired person, fewer than in 99% 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
By its share of households headed by a manual worker (18%), Authon-la-Plaine is above 73% of compared French towns. Households headed by a manager or professional are more common here than in 84% of compared French towns. To put it in context, nearly a third of households are headed by a retired person in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
In Authon-la-Plaine, 7.2% of residents are foreign nationals, more than in 70% 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.
7.7% of residents are immigrants (typical compared French town: 6.5%). As a yardstick, 4.3% of residents are foreign nationals in the typical compared French town. That is higher than in 58% of compared French towns; the median compared commune in Essonne has 13%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Fewer single residents than 98% of compared French towns: 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
43% of residents 15 and over are married in the typical compared French town, against 52% in Authon-la-Plaine. The comparison figure for single residents is 25% in the typical compared French town.
Only 15% of adults out of school have no qualification in Authon-la-Plaine
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, 19% of adults out of school have no qualification in the typical compared French town.
41 French towns of 368 to 2,582 people: this is the 4th 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.
At the ends of the range sit Villejust (37.2), the youngest, and Prayssac (62.3), the oldest.
1 in 6 nearby towns have a higher median age than Authon-la-Plaine
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Authon-la-Plaine | 40.6 | 16% | 3.1% | 7.7% |
| Dourdan 11,415 · 6 mi | 40.6 | 18% | 2.2% | 15% |
| Ablis 3,913 · 7 mi | 37.9 | 13% | 2.1% | 10% |
| Saint-Arnoult-en-Yvelines 5,875 · 8.4 mi | 45.8 | 23% | 2.5% | 8.6% |
| Auneau-Bleury-Saint-Symphorien 6,419 · 9 mi | 39.1 | 16% | 3.2% | 10% |
| Étampes 26,857 · 9.2 mi | 36 | 14% | 0.7% | 22% |
| Angerville 4,428 · 10 mi | 38.7 | 15% | 2.4% | 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 Authon-la-Plaine
What is the population of Authon-la-Plaine?
368 at INSEE’s 2023 census, about the same as in 2012 (368).
How old are Authon-la-Plaine’s residents?
The median age is 40.6, younger than 76% of compared French towns. 26% are under 18 and 16% 65 or older.
How many second homes are there in Authon-la-Plaine?
5, with occasional dwellings: 3.1% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Authon-la-Plaine?
INSEE counts 28 immigrants (born abroad, not French at birth), 7.7% of residents, and 26 foreign nationals (7.2%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Authon-la-Plaine?
€28,240 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.