Thillois ranks above 99% of compared French towns on couples with children: 46%
In Thillois, 1.2% of households have no car, beside 11% in the typical compared French town. Fewer flats than in 88% of compared French towns: 9.2%. The town had 514 residents in 170 households at the 2023 census. 27% of households are headed by a manager or professional.
Throughout this page, the Marne 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 Thillois
A town of families
46% of households are couples with children and 12% single parents with children; 19% of residents are under 15. Households ↓
Growing fast
Thillois had 371 residents at the 2012 census and 514 in 2023, up 39%: faster growth than in 98% of compared French towns. Population ↓
A young town
Half of Thillois’ residents are under 36.7 and half over; the median of compared French towns is 44. 19% are under 15 and 14% are 65 or older. Ages ↓
Many graduates
53% of residents 15 and over who have left education hold a diploma above the bac, 23% a master’s or more (bac+5). Qualifications ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Since 2012, Thillois has grown +39%, faster than 98% 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
Over the whole period the median compared French town changed +5%, and the median Marne town −2%. The years 2012 to 2017 brought +21%; 2017 to 2023, +14%.
Thillois is younger than 92% of compared French towns: a median age of 36.7
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Thillois 36.7. The median compared French town: 44.
With residents aged 65 and over at 14%, Thillois is behind 93% of compared French towns on that count. For Thillois, the census puts residents aged 15 to 24 at 23%.
Women and men · all residents
48% women, 52% men
About 107 men for every 100 women. Median share of women: Marne 52.7%, France 51.8%.
Thillois ranks below 99% of compared French towns on one-person households: 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 Marne median and the France median
Living alone · share
Households average 2.8 people. In the typical compared French town, one-person households come to 35%. At 12%, the share of single-parent households is higher than in nearly four fifths of compared French towns.
89% of homes are houses
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
Households in social housing are rarer here than in 99% of compared French towns. Of all households, 12% moved in during the last two years and 17% have stayed three decades or more. Nothing unusual on empty homes: 6.1%, close to the figure in the typical compared French town.
The middle resident’s standard of living: €35,130 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.
At €35,130 a year per consumption unit, the median standard of living here is higher than in 96% of compared French towns.
Only 9.1% of households are headed by a manual worker in Thillois
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
Set against 32% in the typical compared French town, 27% of households are headed by a retired person in Thillois. As a yardstick, 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).
Fewer immigrants than 76% of compared French towns: 3.7%
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.
Compared with 4.3% in the typical compared French town, 1.9% of residents are foreign nationals here. The usual figure: 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.
Thillois ranks above 83% of compared French towns on single residents: 31%
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
In Thillois, 44% of residents 15 and over are married, beside 43% in the typical compared French town. The comparison figure for single residents is 25% in the typical compared French town.
A larger share of graduates of higher education than 95% of compared French towns: 53%
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
Just over one in ten adults out of school have no qualification; in the typical compared French town the figure is 19%. Across the comparison, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
The youngest of 41 French towns of 514 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.
Thillois is the youngest (36.7); Prayssac the oldest (62.3).
A younger town than 4 of the 6 around it: Thillois
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Thillois | 36.7 | 14% | 2.2% | 3.7% |
| Saint-Brice-Courcelles 3,566 · 1.5 mi | 47.2 | 25% | 0.6% | 3.9% |
| Tinqueux 10,771 · 1.8 mi | 44.4 | 24% | 0.8% | 6.1% |
| Bezannes 5,039 · 3 mi | 31.7 | 15% | 2.6% | 7% |
| Reims 177,674 · 3.4 mi | 35.1 | 17% | 3.8% | 14% |
| Bétheny 6,975 · 4.7 mi | 47.6 | 27% | 0.8% | 4.2% |
| Cormontreuil 6,534 · 4.9 mi | 50.9 | 31% | 0.8% | 4.9% |
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 Thillois
What is the population of Thillois?
514 at INSEE’s 2023 census, 39% more than in 2012 (371).
How old are Thillois’ residents?
The median age is 36.7, younger than 92% of compared French towns. 25% are under 18 and 14% 65 or older.
How many second homes are there in Thillois?
4, with occasional dwellings: 2.2% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Thillois?
INSEE counts 19 immigrants (born abroad, not French at birth), 3.7% of residents, and 10 foreign nationals (1.9%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Thillois?
€35,130 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 8, 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.