Photo: Gunnar Klack · CC BY-SA 4.0More second homes than 99% of compared French towns: 71%
The figure for empty homes is 1.8% in Seignosse and 6.7% in the typical compared French town. The share of residents aged 15 to 24 stands at 6.4%. Few places have so few households without a car: 3.1% here, fewer than in 98% of compared French towns. Census day 2023: 4,056 residents and 2,040 households in the town.
Throughout this page, the Landes 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 Seignosse
One home in two is a second home
The census counted 5,240 second homes and occasional dwellings in Seignosse, 71% of its 7,410 homes: higher than in 99% of compared French towns. 41% of them are houses. Their owners live elsewhere, so they aren’t in the population figures on this page. Homes & cars ↓
Many graduates
53% of residents 15 and over who have left education hold a diploma above the bac, 21% a master’s or more (bac+5). Qualifications ↓
Growing fast
Seignosse had 3,461 residents at the 2012 census and 4,056 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.
Only 3.4% of households rent social housing (HLM) in Seignosse
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
Recent arrivals (under two years) make up nearly one in ten households; long-stayers (30 years or more) 9.8%. Half of homes are flats, a higher share than in 75% of compared French towns. As a reference point, 12% of households rent social housing (HLM) in the typical compared French town.
Faster growth than 86% of compared French towns: Seignosse changed by +17% since 2012
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
Medians for comparison: +5% across compared French towns, +9% in Landes.
Older than 82% of compared French towns: half of Seignosse is over 49.6
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Seignosse 49.6. The median compared French town: 44.
Residents aged 65 and over: 29%, above 82% of compared French towns.
Women and men · all residents
52% women, 48% men
About 93 men for every 100 women. Median share of women: Landes 51.9%, France 51.8%. Women live longer than men, so towns with many older residents have more women.
In Seignosse, 19% of households are couples with children, fewer than in 78% 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 Landes median and the France median
Living alone · share
Average household size: 2 people. Seignosse has more one-person households than 66% of compared French towns, at 39%. As a reference point, a quarter of households are couples with children in the typical compared French town. Here just over one in ten households are single parents, where the figure in the typical compared French town is 10%.
€28,310 a year is the median standard of living here
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.
Living standards centre on €28,310 a year per consumption unit: higher than in 73% of compared French towns. Under the poverty line sit 13.0% of residents.
8.2% of households are headed by a manual worker, fewer than in 86% 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 retired person make up 36%, against 32% in the typical compared French town. What’s more, 16% of households are headed by a manager or professional, a higher share than in 78% of compared French towns. Across the comparison, 14% of households are headed by a manual worker in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Seignosse: 6.3% of residents 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.
Put another way, about one in 16: 6.3% of residents are immigrants. That is lower than in 51% of compared French towns; the median compared commune in Landes has 5.4%. Little separates the share of foreign nationals here, 4.4%, from the figure 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.
Single residents: 23%, a lower share than 71% 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
In Seignosse, 42% of residents 15 and over are married. Single residents: 25% in the typical compared French town, for comparison.
Seignosse sits below 99% of compared French towns for adults with no qualification (7.5%)
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 Seignosse, 53% of adults out of school hold a higher-education qualification, beside 30% in the typical compared French town. The wider picture: nearly a fifth of adults out of school have no qualification in the typical compared French town.
The 15th oldest of 41 French towns of 4,026 to 4,081 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.
Ages run from 38.5 in Chevry-Cossigny to 65.7 in Le Croisic.
Around Seignosse, 3 of 6 towns have a higher median age
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Seignosse | 49.6 | 29% | 71% | 6.3% |
| Tosse 3,556 · 2.6 mi | 45.8 | 23% | 9.8% | 4.2% |
| Soorts-Hossegor 3,817 · 2.6 mi | 62.6 | 47% | 64% | 5.4% |
| Capbreton 9,184 · 4.2 mi | 53.9 | 36% | 56% | 4.9% |
| Bénesse-Maremne 3,780 · 4.2 mi | 42.6 | 18% | 6.3% | 4.5% |
| Saint-Vincent-de-Tyrosse 8,014 · 4.5 mi | 48.4 | 28% | 3.6% | 5.8% |
| Soustons 8,701 · 4.9 mi | 53.5 | 33% | 35% | 6% |
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 Seignosse
What is the population of Seignosse?
4,056 at INSEE’s 2023 census, 17% more than in 2012 (3,461).
How old are Seignosse’s residents?
The median age is 49.6, older than 82% of compared French towns. 16% are under 18 and 29% 65 or older.
How many second homes are there in Seignosse?
5,240, with occasional dwellings: 71% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Seignosse?
INSEE counts 260 immigrants (born abroad, not French at birth), 6.3% of residents, and 180 foreign nationals (4.4%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Seignosse?
€28,310 a year per consumption unit in 2023 (median of compared French towns €25,970); 13.0% 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.