0.9% of homes are flats, fewer than in 99% of compared French towns
Against a figure of 12% in the typical compared French town, the share of households in social housing in Treux comes in at 1%. In 2023, the Census found 220 residents in the town, living in 95 households. Across Treux, 15% of households are one person living alone. With a median age of 49.2, Treux is older than four fifths of compared French towns.
Throughout this page, the Somme 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 Treux
Fewer residents than in 2012
Treux had 234 residents at the 2012 census and 220 in 2023, down 6%: slower growth than in 91% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Treux’s population moved −6% on 2012, less than in 91% 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
Treux sits above 67% of compared French towns for residents aged 65 and over (25%)
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Treux 49.2. The median compared French town: 44.
11% of residents are 15 to 24 in the typical compared French town, against 9.8% in Treux. Typically, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
53% women, 47% men
About 88 men for every 100 women. Median share of women: Somme 52.5%, France 51.8%.
Treux ranks above 75% of compared French towns on couples with children: 30%
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 Somme median and the France median
Living alone · share
The typical household size is 2.3 people. One in ten households are single parents, a lower share than in 50% of compared French towns. In the typical compared French town, 25% of households are couples with children.
A lower share of households without a car than 87% of compared French towns, at 5.2%
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
One household in 19 has no car, against 11% in the median compared French town. Census figures put second homes at 5.6% in Treux. The town has more empty homes than 58% of compared French towns, at 7.4%.
At the median, €25,190 a year to live on
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.
Per consumption unit, half of residents live on more than €25,190 a year: lower than in 58% of compared French towns.
Households headed by a manager or professional: 5%, a lower share than 86% 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
With households headed by a retired person at 35%, Treux is ahead of 64% of compared French towns on that count. For households headed by a manager or professional, the comparison in the typical compared French town is 9.4%. On the census count, 10% of households are headed by a manual worker.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Immigrants: 2.7%, a lower share than 85% 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.
The median compared commune in Somme has 2.5%; immigrants here make up a share lower than in 85% of compared French towns. Against that, 6.5% of residents are immigrants in the typical compared French town. Locally, 2.2% of residents are foreign nationals.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
A larger share of married residents than 99% of compared French towns: 55%
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
Single residents: 17%, below 99% of compared French towns. For married residents, the comparison in the typical compared French town is 43%.
Treux sits below 79% of compared French towns for graduates of higher education (22%)
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
Census figures put adults with no qualification at 20% in Treux. By way of comparison, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
14th highest median age among 41 French towns of 220 to 2,582
The 40 compared French towns nearest in population, by median age. Hover for each one’s second homes and immigrants; click for its page.
Villejust is the youngest (37.2); Prayssac the oldest (62.3).
No nearby town is as old as Treux
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Treux | 49.2 | 25% | 5.6% | 2.7% |
| Albert 9,521 · 3.9 mi | 46 | 25% | 1.7% | 2.5% |
| Corbie 5,982 · 5 mi | 47.2 | 26% | 1.1% | 1.9% |
| Villers-Bretonneux 4,647 · 7 mi | 41 | 18% | 0.6% | 1.7% |
| Rosières-en-Santerre 2,894 · 10.9 mi | 46.9 | 27% | 0.9% | 2.3% |
| Boves 3,234 · 11.8 mi | 43.3 | 21% | 1.6% | 2.5% |
| Camon 4,359 · 11.9 mi | 48.1 | 26% | 0.7% | 3.2% |
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 Treux
What is the population of Treux?
220 at INSEE’s 2023 census, 6% fewer than in 2012 (234).
How old are Treux’s residents?
The median age is 49.2, older than 80% of compared French towns. 18% are under 18 and 25% 65 or older.
How many second homes are there in Treux?
6, with occasional dwellings: 5.6% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Treux?
INSEE counts 6 immigrants (born abroad, not French at birth), 2.7% of residents, and 5 foreign nationals (2.2%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Treux?
€25,190 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 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.