Couples with children make up 37% in Marennes, more than in 96% of compared French towns
2.3% of households have no car; in the typical compared French town the figure is 11%. The 2023 Census counted 1,992 residents in 770 households. On the census count, 1.4% of households rent social housing (HLM). With a median age of 41.2, Marennes is younger than 72% of compared French towns.
Throughout this page, the 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.
What stands out about the people of Marennes
A town of families
37% of households are couples with children and 12% single parents with children; 21% of residents are under 15. Households ↓
Growing fast
Marennes had 1,571 residents at the 2012 census and 1,992 in 2023, up 27%: faster growth than in 95% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
+27% since 2012, a pace 95% of compared French towns didn’t match
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 median Rhône town changed +10% and the median compared French town +5%; here the first five years brought +7% and the next six +18%.
Marennes sits below 82% of compared French towns for residents aged 65 and over (17%)
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Marennes 41.2. The median compared French town: 44.
With residents aged 15 to 24 at 10%, Marennes is behind 61% of compared French towns on that count. As a yardstick, 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: Rhône 51.5%, France 51.8%.
A lower share of one-person households than 99% of compared French towns, at 22%
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 Rhône median and the France median
Living alone · share
On average, 2.5 people share a household. Just over one in ten households are single parents, more than in 75% of compared French towns. Against that, 35% of households are one person living alone in the typical compared French town.
Below 77% of compared French towns: 15% of homes are flats
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
In the last two years, nearly one in ten households moved in; at the other end, 27% have stayed 30 years or more. Empty homes are rarer here than in nearly two thirds of compared French towns. Second homes are about as common here as in the typical compared French town: 1.8%.
At the median, €33,290 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 median standard of living in Marennes is €33,290 a year per consumption unit: higher than in 94% of compared French towns.
Marennes: 25% of households are headed by a manager or professional, above 94% 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
14% of households are headed by a manual worker in the typical compared French town, against 5.9% in Marennes. Elsewhere, nearly one in ten households are headed by a manager or professional in the typical compared French town. Census figures put households headed by a retired person at 28% here.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Immigrants: 4%, a lower share than 73% 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.
By its share of foreign nationals (2.6%), Marennes is below 71% of compared French towns. The median compared commune in Rhône has 8.2%; immigrants here make up a share lower than in 73% of compared French towns. For 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.
20% of residents 15 and over are single, fewer than in 89% 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
Here 48% of residents 15 and over are married, where the figure in the typical compared French town is 43%. Single residents make up 25% in the typical compared French town.
Marennes ranks above 84% of compared French towns on graduates of higher education: 42%
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
Adults with no qualification: 13% here and 19% in the typical compared French town. The share of graduates of higher education in the typical compared French town is 30%.
41 French towns of 1,992 to 2,582 people: this is the 5th youngest
The 40 compared French towns nearest in population, by median age. Hover for each one’s second homes and immigrants; click for its page.
At the ends of the range sit Villejust (37.2), the youngest, and Prayssac (62.3), the oldest.
Older than Marennes: 2 of the 6 towns nearby
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 Marennes
What is the population of Marennes?
1,992 at INSEE’s 2023 census, 27% more than in 2012 (1,571).
How old are Marennes’ residents?
The median age is 41.2, younger than 72% of compared French towns. 25% are under 18 and 17% 65 or older.
How many second homes are there in Marennes?
15, with occasional dwellings: 1.8% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Marennes?
INSEE counts 80 immigrants (born abroad, not French at birth), 4% of residents, and 51 foreign nationals (2.6%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Marennes?
€33,290 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.