44% of households are couples with children, a share 99% of compared French towns don’t reach
The share of households without a car is 4.2%, against 11% in the typical compared French town. Fewer households headed by a manual worker than in 79% of compared French towns: 9.6%. At the 2023 Census, 691 people lived in Sept-Saulx, in 260 households. In Sept-Saulx, 0.7% of homes are flats.
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 Sept-Saulx
A town of families
44% of households are couples with children and 5.8% single parents with children; 24% of residents are under 15. Households ↓
A young town
Half of Sept-Saulx’s residents are under 37.4 and half over; the median of compared French towns is 44. 24% are under 15 and 15% are 65 or older. Ages ↓
Growing fast
Sept-Saulx had 590 residents at the 2012 census and 691 in 2023, up 17%: faster growth than in 86% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Sept-Saulx grew +17% from 2012 to 2023, ahead of 86% 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
Here the change came as +4% to 2017, then +12% to 2023. Medians for comparison: +5% across compared French towns, −2% in Marne.
A median age of 37.4: Sept-Saulx is younger than 90% 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
■ Sept-Saulx 37.4. The median compared French town: 44.
In the typical compared French town, just over a fifth of residents are 65 or over; in Sept-Saulx, 15%.
Women and men · all residents
50% women, 50% men
About an even split. Median share of women: Marne 52.7%, France 51.8%.
Sept-Saulx sits below 99% of compared French towns for one-person households (19%)
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
On average, 2.7 people share a household. In the typical compared French town, the share of one-person households is 35%. Fewer single-parent households than in 97% of compared French towns: 5.8%.
4.9% of homes stand empty, below 76% 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
Some 5.4% of households are newcomers of under two years, against 21% who have been there 30 years or more. On average, 6.7% of homes stand empty in the typical compared French town. Second homes: 1.4% of the total. Households in social housing are rarer here than in 99% of compared French towns.
Standard of living at the median: €27,670 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.
Half of residents live in households above €27,670 a year per consumption unit and half below; the level is higher than in 67% of compared French towns.
Sept-Saulx sits below 98% of compared French towns for households headed by a retired person (17%)
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 the census count, 9.6% of households are headed by a manager or professional. As a reference point, 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).
Immigrants: 2.9%, a lower share than 83% 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 share of foreign nationals is 2.3%, against 4.3% in the typical compared French town. In the typical compared French town, immigrants come to 6.5%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
A smaller share of single residents than 99% of compared French towns: 17%
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
Married residents: 48% here and 43% in the typical compared French town. As a reference point, a quarter of residents 15 and over are single in the typical compared French town.
13% of adults out of school have no qualification, below 83% 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
Graduates of higher education: 39% here and 30% in the typical compared French town. Measured more widely, nearly a fifth of adults out of school have no qualification in the typical compared French town.
The 2nd youngest of 41 French towns of 691 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.
The youngest is Villejust (37.2), the oldest Prayssac (62.3).
Sept-Saulx is younger than 3 of its 6 nearest neighbors
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Sept-Saulx | 37.4 | 15% | 1.4% | 2.9% |
| Mourmelon-le-Grand 4,895 · 5 mi | 30.8 | 11% | 1.2% | 2.5% |
| Cormontreuil 6,534 · 10.4 mi | 50.9 | 31% | 0.8% | 4.9% |
| Witry-lès-Reims 4,950 · 11.5 mi | 44 | 20% | 0.6% | 3.6% |
| Reims 177,674 · 12.2 mi | 35.1 | 17% | 3.8% | 14% |
| Aÿ-Champagne 5,103 · 12.5 mi | 51.9 | 30% | 3.2% | 2.5% |
| Bezannes 5,039 · 12.6 mi | 31.7 | 15% | 2.6% | 7% |
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 Sept-Saulx
What is the population of Sept-Saulx?
691 at INSEE’s 2023 census, 17% more than in 2012 (590).
How old are Sept-Saulx’s residents?
The median age is 37.4, younger than 90% of compared French towns. 28% are under 18 and 15% 65 or older.
How many second homes are there in Sept-Saulx?
4, with occasional dwellings: 1.4% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Sept-Saulx?
INSEE counts 20 immigrants (born abroad, not French at birth), 2.9% of residents, and 16 foreign nationals (2.3%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Sept-Saulx?
€27,670 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 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.