50% of households are couples with children, more than in 99% of compared French towns
By its share of households headed by a manual worker (17%), Sars-le-Bois is above 67% of compared French towns. This Pas-de-Calais town had 83 residents in 30 households at the 2023 census. In Sars-le-Bois, nearly one in ten residents are 15 to 24. Nearly one in ten homes stand empty, a higher share than in 74% of compared French towns.
Throughout this page, the Pas-de-Calais 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 Sars-le-Bois
A town of families
50% of households are couples with children and 0% single parents with children; 23% of residents are under 15. Households ↓
Growing fast
Sars-le-Bois had 69 residents at the 2012 census and 83 in 2023, up 20%: faster growth than in 91% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Sars-le-Bois grew +20% from 2012 to 2023, faster than 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
Against +5% for the median compared French town and −1% for the median Pas-de-Calais town, the change came in two steps: +19% from 2012 to 2017, then +1% to 2023.
A median age of 42: Sars-le-Bois is younger than 66% 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
■ Sars-le-Bois 42. The median compared French town: 44.
The share of residents aged 65 and over stands at 22%.
Women and men · all residents
51% women, 49% men
About 96 men for every 100 women. Median share of women: Pas-de-Calais 52.0%, France 51.8%.
One-person households make up 17% in Sars-le-Bois, less than in 99% of compared French towns
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 Pas-de-Calais median and the France median
Living alone · share
Households average 2.8 people. To put it in context, 35% of households are one person living alone in the typical compared French town.
9.1% of households have no car, fewer than in 59% 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. Measured more widely, just over one in ten households have no car in the typical compared French town. For Sars-le-Bois, the census puts second homes at 3.1%.
Households headed by a retired person make up 50% in Sars-le-Bois, more than in 97% 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
Households headed by a manager or professional are rarer here than in 99% of compared French towns. By way of comparison, 32% 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).
3.3% of residents are immigrants, fewer than in 80% 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.
Foreign nationals are rarer here than in 99% of compared French towns. By way of comparison, 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.
More married residents than 83% of compared French towns: 48%
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
A quarter of residents 15 and over are single, or about one in four. In the typical compared French town, the share of married residents is 43%.
In Sars-le-Bois, 14% of adults out of school have no qualification, fewer than in 79% of compared French towns
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
Compared with 30% in the typical compared French town, 25% of adults out of school hold a higher-education qualification here. Across the comparison, 19% of adults out of school have no qualification in the typical compared French town.
Ranked by age, 8th youngest of 41 French towns this size
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.
5 of 6 neighbors are older than Sars-le-Bois
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 Sars-le-Bois
What is the population of Sars-le-Bois?
83 at INSEE’s 2023 census, 20% more than in 2012 (69).
How old are Sars-le-Bois’ residents?
The median age is 42, younger than 66% of compared French towns. 28% are under 18 and 22% 65 or older.
How many second homes are there in Sars-le-Bois?
1, with occasional dwellings: 3.1% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Sars-le-Bois?
INSEE counts 3 immigrants (born abroad, not French at birth), 3.3% 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 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.