5.4% of residents are 15 to 24, below 99% of compared French towns
Against a figure of 30% in the typical compared French town, the share of flats in Saint-Thomas comes in at 7.4%. One-person households account for 43%. Half are older than 47.3, older than 71% of compared French towns.
Throughout this page, the Aisne 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 Saint-Thomas
One home in six is a second home
The census counted 9 second homes and occasional dwellings in Saint-Thomas, 18% of its 52 homes: higher than in 92% of compared French towns. 100% of them are houses. Their owners live elsewhere, so they aren’t in the population figures on this page. Homes & cars ↓
Fewer residents than in 2012
Saint-Thomas had 106 residents at the 2012 census and 71 in 2023, down 33%: slower growth than in 99% of compared French towns. Population ↓
Empty homes
The census found 7 homes empty (14%): for sale, to let, awaiting work or simply unused. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Second homes make up 18% in Saint-Thomas, more than in 92% 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
Households in social housing are rarer here than in 99% of compared French towns. The share of empty homes stands at 14%. On average, 2.1% of homes are second homes in the typical compared French town. In the median compared French town, just over one in ten households have no car; here, one in seven.
Slower than most: −33% since 2012, behind 99% 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 change was −25% from 2012 to 2017 and −11% from 2017 to 2023. The median compared French town changed +5% over the same years, the median Aisne town −4%.
16% of residents are 65 or over, below 86% 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
■ Saint-Thomas 47.3. The median compared French town: 44.
The median age in Saint-Thomas is 47.3, higher than in 71% of compared French towns. The wider picture: 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
50% women, 50% men
About an even split. Median share of women: Aisne 52.5%, France 51.8%.
A smaller share of couples with children than 93% of compared French towns: 14%
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 Aisne median and the France median
Living alone · share
Single-parent households are rarer here than in 99% of compared French towns. There are 2 people in the average household. Couples with children make up 25% in the typical compared French town.
Fewer households headed by a retired person than 99% of compared French towns: 14%
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
On households headed by a manual worker, Saint-Thomas sits higher than 53% of compared French towns: 14%. The share of households headed by a retired person in the typical compared French town is 32%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
0% of Saint-Thomas’ 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.
Married residents: 46%, a higher share than 73% 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
Where a quarter of residents 15 and over are single in the typical compared French town, Saint-Thomas has 23%. Married residents make up 43% in the typical compared French town.
A larger share of graduates of higher education than 66% of compared French towns: 35%
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
Here just over a fifth of adults out of school have no qualification, where the figure in the typical compared French town is 19%. As a yardstick, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
The 15th oldest of 41 French towns of 71 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.
Ages run from 37.2 in Villejust to 62.3 in Prayssac.
Saint-Thomas is older 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 |
|---|---|---|---|---|
| Saint-Thomas | 47.3 | 16% | 18% | 0% |
| Athies-sous-Laon 2,578 · 8 mi | 44.9 | 23% | 0.7% | 2% |
| Villeneuve-sur-Aisne 2,792 · 8.2 mi | 41.9 | 21% | 1.3% | 2.4% |
| Laon 24,220 · 9.9 mi | 40.8 | 21% | 1.8% | 9.4% |
| Fismes 5,850 · 14.5 mi | 43.6 | 23% | 1.5% | 3.1% |
| Saint-Brice-Courcelles 3,566 · 17.9 mi | 47.2 | 25% | 0.6% | 3.9% |
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 Saint-Thomas
What is the population of Saint-Thomas?
71 at INSEE’s 2023 census, 33% fewer than in 2012 (106).
How old are Saint-Thomas’ residents?
The median age is 47.3, older than 71% of compared French towns. 14% are under 18 and 16% 65 or older.
How many second homes are there in Saint-Thomas?
9, with occasional dwellings: 18% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Saint-Thomas?
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%.
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.