A higher share of households headed by a manual worker than 74% of compared French towns, at 18%
With households without a car at 8.2%, Sénas is behind 65% of compared French towns on that count. This Bouches-du-Rhône town is home to 6,925 residents in 3,040 households, by the 2023 Census. 28% of households are couples with children, or about one in four. The median age locally is 45.2, higher than in 58% of compared French towns.
Throughout this page, the Bouches-du-Rhône 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.
A +2% change since 2012: slower than 60% 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 +3% from 2012 to 2017 and −1% from 2017 to 2023. The median compared French town changed +5% over the same years, the median Bouches-du-Rhône town +6%.
Sénas sits below 72% of compared French towns for residents aged 15 to 24 (9.5%)
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Sénas 45.2. The median compared French town: 44.
By its share of residents aged 65 and over (24%), Sénas is above 61% of compared French towns.
Women and men · all residents
52% women, 48% men
About 94 men for every 100 women. Median share of women: Bouches-du-Rhône 51.9%, France 51.8%.
Sénas ranks below 63% of compared French towns on one-person households: 33%
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 Bouches-du-Rhône median and the France median
Living alone · share
Average household size: 2.3 people. By way of comparison, 35% of households are one person living alone in the typical compared French town. Single-parent households make up 9.7%, close to the figure in the typical compared French town.
Flats: 26%, a lower share than 56% 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
One household in 12 has no car, against 11% in the median compared French town. Elsewhere, 30% of homes are flats in the typical compared French town. Here, 1.3% of homes are second homes.
At the median, €25,050 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.
The midpoint of living standards here is €25,050 a year per consumption unit, lower than in 60% of compared French towns. Below the poverty line: 15.0% of residents.
Below 57% of compared French towns: 31% of households are headed by a retired person
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: a tenth of the total. Set beside that, nearly a third 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).
6.7% of residents in Sénas 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.
That is higher than in 52% of compared French towns; the median compared commune in Bouches-du-Rhône has 6.3%. Immigrants make up about one in 15 here (6.7%). Foreign nationals are about as common here as in the typical compared French town: 4.3%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
23% of residents 15 and over are single, below 72% 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
The census found that 44% of residents 15 and over are married in Sénas. In the typical compared French town, the share of single residents is 25%.
A higher share of adults with no qualification than 69% of compared French towns, at 23%
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
In the typical compared French town, the share of graduates of higher education is 30%; Sénas has 27%. The comparison figure for adults with no qualification is 19% in the typical compared French town.
Among 41 French towns of 6,850 to 7,004 people, the 13th oldest
The 40 compared French towns nearest in population, by median age. Hover for each one’s second homes and immigrants; click for its page.
Bailly-Romainvilliers is the youngest (34.9); Nérac the oldest (54.2).
Of the 6 towns nearest Sénas, 4 are older
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Sénas | 45.2 | 24% | 1.3% | 6.7% |
| Cheval-Blanc 4,362 · 3.9 mi | 48.8 | 24% | 4.8% | 5% |
| Orgon 2,762 · 4.1 mi | 46.8 | 23% | 4.6% | 13% |
| Eyguières 7,119 · 4.3 mi | 46.7 | 22% | 7% | 4% |
| Alleins 2,852 · 4.8 mi | 42.1 | 18% | 3.3% | 3.4% |
| Mallemort 6,166 · 5.3 mi | 46.2 | 22% | 30% | 6% |
| Plan-d'Orgon 3,573 · 6.2 mi | 43.3 | 20% | 3.8% | 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 Sénas
What is the population of Sénas?
6,925 at INSEE’s 2023 census, 2% more than in 2012 (6,770).
How old are Sénas’ residents?
The median age is 45.2, older than 58% of compared French towns. 21% are under 18 and 24% 65 or older.
How many second homes are there in Sénas?
43, with occasional dwellings: 1.3% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Sénas?
INSEE counts 460 immigrants (born abroad, not French at birth), 6.7% of residents, and 300 foreign nationals (4.3%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Sénas?
€25,050 a year per consumption unit in 2023 (median of compared French towns €25,970); 15.0% of residents live below the poverty line. 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.