Photo: FrenchCobber · CC BY-SA 3.0Semussac sits below 97% of compared French towns for flats (3.8%)
Compared with 12% in the typical compared French town, 3.2% of households rent social housing (HLM) here. On the census count, 7.4% of residents are 15 to 24. Few places have so few households without a car: 4.9% here, fewer than in 89% of compared French towns. There were 1,250 households in Semussac at the 2023 Census, home to 2,585 residents.
Throughout this page, the Charente-Maritime 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 Semussac
Growing fast
Semussac had 2,128 residents at the 2012 census and 2,585 in 2023, up 21%: faster growth than in 92% of compared French towns. Population ↓
An older town
Half of Semussac’s residents are under 51.4 and half over; the median of compared French towns is 44. 30% are 65 or older (France median 22%), 5.5% 80 or older. Ages ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Semussac grew +21% from 2012 to 2023, faster than 92% 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 +8% for the median Charente-Maritime town, the change came in two steps: +10% from 2012 to 2017, then +11% to 2023.
Half of Semussac is over 51.4, older than 87% 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
■ Semussac 51.4. The median compared French town: 44.
Where 22% of residents are 65 or over in the typical compared French town, Semussac has 30%.
Women and men · all residents
52% women, 48% men
About 94 men for every 100 women. Median share of women: Charente-Maritime 53.1%, France 51.8%. Women live longer than men, so towns with many older residents have more women.
In Semussac, 7.6% of households are single parents, fewer than in 84% 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 Charente-Maritime median and the France median
Living alone · share
One-person households make up 31%, against 35% in the typical compared French town. Here, just over a fifth of households are couples with children. Set beside that, 10% of households are single parents in the typical compared French town.
Semussac ranks above 87% of compared French towns on second homes: 9.3%
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 13% of households are newcomers of under two years, against 13% who have been there 30 years or more. Empty homes make up about one in 11 here (9.3%). Elsewhere, 2.1% of homes are second homes in the typical compared French town.
Median living standard: €24,770 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.
At €24,770 a year per consumption unit, the median standard of living here is lower than in 63% of compared French towns. Below the poverty line: 11.0% of residents.
Households headed by a retired person: 42%, a higher share than 88% 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
The figure for households headed by a manual worker is 12% in Semussac and 14% in the typical compared French town. Set beside that, nearly a third of households are headed by a retired person in the typical compared French town. About one in 19: that is how common households headed by a manager or professional are in Semussac (5.2%).
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Immigrants: 2.5%, a lower share than 87% 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.
Here 1.4% of residents are foreign nationals, where the figure in the typical compared French town is 4.3%. The median compared commune in Charente-Maritime has 3.1%; immigrants here make up a share lower than in 87% of compared French towns. Typically, 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.
Semussac sits below 95% of compared French towns for single residents (19%)
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%. In the typical compared French town, single residents come to 25%.
23% of adults out of school hold a higher-education qualification, below 77% 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
By its share of adults with no qualification (16%), Semussac is below 65% of compared French towns. In the typical compared French town, graduates of higher education come to 30%.
9th highest median age among 41 French towns of 2,559 to 2,609
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 Saint-Yzan-de-Soudiac (37.6), the youngest, and Eymet (61.2), the oldest.
No nearby town is as young as Semussac
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Semussac | 51.4 | 30% | 9.3% | 2.5% |
| Meschers-sur-Gironde 3,180 · 3.1 mi | 66.1 | 53% | 50% | 3.6% |
| Médis 3,157 · 3.5 mi | 56.7 | 36% | 8.7% | 3% |
| Saint-Georges-de-Didonne 5,092 · 3.5 mi | 67.3 | 55% | 67% | 2.7% |
| Saujon 7,440 · 5 mi | 59.6 | 42% | 13% | 3.1% |
| Royan 19,425 · 5.6 mi | 64.5 | 49% | 43% | 4.4% |
| Saint-Sulpice-de-Royan 3,446 · 6.5 mi | 58.7 | 40% | 7.3% | 2.3% |
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 Semussac
What is the population of Semussac?
2,585 at INSEE’s 2023 census, 21% more than in 2012 (2,128).
How old are Semussac’s residents?
The median age is 51.4, older than 87% of compared French towns. 18% are under 18 and 30% 65 or older.
How many second homes are there in Semussac?
140, with occasional dwellings: 9.3% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Semussac?
INSEE counts 65 immigrants (born abroad, not French at birth), 2.5% of residents, and 36 foreign nationals (1.4%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Semussac?
€24,770 a year per consumption unit in 2023 (median of compared French towns €25,970); 11.0% 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 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.