Above 99% of compared French towns: 47% of households are couples with children
In the typical compared French town, 9.4% of households are headed by a manager or professional; in Thil, 31%. The 2023 Census counted 1,261 residents in 460 households. Across Thil, 15% of residents are 65 or over. The town has fewer flats than 92% of compared French towns, at 6.9%.
Throughout this page, the Ain 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 Thil
A town of families
47% of households are couples with children and 5.4% single parents with children; 21% of residents are under 15. Households ↓
Growing fast
Thil had 1,030 residents at the 2012 census and 1,261 in 2023, up 22%: faster growth than in 92% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Since 2012, Thil has grown +22%, faster than 92% 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 population moved +6%, and from 2017 to 2023 +16%; the median compared French town changed +5% and the median Ain town +13%.
Half of Thil is under 39.9, younger than 80% 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
■ Thil 39.9. The median compared French town: 44.
Here one in ten residents are 15 to 24, where the figure in the typical compared French town is 11%.
Women and men · all residents
49% women, 51% men
About 105 men for every 100 women. Median share of women: Ain 51.0%, France 51.8%.
A smaller share of one-person households than 99% of compared French towns: 12%
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 Ain median and the France median
Living alone · share
Set against 10% in the typical compared French town, 5.4% of households are single parents in Thil. Typically, 35% of households are one person living alone in the typical compared French town. Each household has 2.7 people on average.
Households without a car: 1.7%, a lower share than 99% 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
Where 12% of households rent social housing (HLM) in the typical compared French town, Thil has 2.4%. Empty homes make up about one in 21 here (4.7%). On second homes, Thil sits lower than 55% of compared French towns: 1.8%. By way of comparison, just over one in ten households have no car in the typical compared French town.
Half of residents have a standard of living above €33,610 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.
Living standards centre on €33,610 a year per consumption unit: higher than in 94% of compared French towns.
A lower share of households headed by a retired person than 92% of compared French towns, at 22%
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
Against a figure of 14% in the typical compared French town, the share of households headed by a manual worker in Thil comes in at 11%. In the typical compared French town, the share of households headed by a retired person is 32%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Below 74% of compared French towns: 2.3% of residents are foreign nationals
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.
Immigrants make up a share lower than in 54% of compared French towns; the median compared commune in Ain has 8.5%. As a yardstick, 4.3% of residents are foreign nationals in the typical compared French town. 6% of residents are immigrants, or about one in 17.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
57% of residents 15 and over are married, a share 99% of compared French towns don’t reach
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
The share of single residents is 19%, against 25% in the typical compared French town. In the typical compared French town, married residents come to 43%.
Only 10% of adults out of school have no qualification in Thil
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
With graduates of higher education at 44%, Thil is ahead of 87% of compared French towns on that count. As a yardstick, 19% of adults out of school have no qualification in the typical compared French town.
The 2nd youngest of 41 French towns of 1,261 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.
At the ends of the range sit Villejust (37.2), the youngest, and Prayssac (62.3), the oldest.
Thil and its 6 nearest towns: 4 of them are older
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 Thil
What is the population of Thil?
1,261 at INSEE’s 2023 census, 22% more than in 2012 (1,030).
How old are Thil’s residents?
The median age is 39.9, younger than 80% of compared French towns. 25% are under 18 and 15% 65 or older.
How many second homes are there in Thil?
9, with occasional dwellings: 1.8% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Thil?
INSEE counts 76 immigrants (born abroad, not French at birth), 6% of residents, and 29 foreign nationals (2.3%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Thil?
€33,610 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 October 30, 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.