Biganos sits below 78% of compared French towns for households without a car (6.4%)
The figure for one-person households is 31% in Biganos and 35% in the typical compared French town. Census day 2023: 11,431 residents and 5,040 households here. Put another way, about one in 22: 4.5% of homes stand empty. Compared with other places, households in social housing are scarce here: 7.9%, fewer than in 72% of compared French towns.
Throughout this page, the Gironde 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 growing town: +16% since 2012, faster than 84% 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 +16% for the median Gironde town, the change came in two steps: +9% from 2012 to 2017, then +7% to 2023.
Older than 63% of compared French towns: half of Biganos is over 45.9
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Biganos 45.9. The median compared French town: 44.
9.5% of residents are 15 to 24 (typical compared French town: 11%). Census figures put residents aged 65 and over at 23% in Biganos.
Women and men · all residents
53% women, 47% men
About 90 men for every 100 women. Median share of women: Gironde 51.8%, France 51.8%.
A higher share of couples with children than 66% of compared French towns, at 28%
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 Gironde median and the France median
Living alone · share
Each household has 2.2 people on average. In the typical compared French town, couples with children come to 25%. At 9.7%, the share of single-parent households is in line with the figure in the typical compared French town.
Flats make up 18% in Biganos, less than in 71% 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
Of all households, 11% moved in during the last two years and 16% have stayed three decades or more. The share of flats in the typical compared French town is 30%. On second homes, 2.1% here is much the same as in the typical compared French town.
At the median, €27,170 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.
Living standards centre on €27,170 a year per consumption unit: higher than in 63% of compared French towns. 9.0% of residents have a standard of living below 60% of France’s median.
34% of households are headed by a retired person, a share 56% of compared French towns don’t reach
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 share of households headed by a manager or professional stands at 9.8%. Households headed by a manual worker are about as common here as in the typical compared French town: 14%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Biganos sits below 76% of compared French towns for immigrants (3.7%)
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.
With foreign nationals at 2.2%, Biganos is behind 76% of compared French towns on that count. The comparison figure for immigrants is 6.5% 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.
23% of residents 15 and over are single, fewer than in 70% 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 Biganos, 43% of residents 15 and over are married. The share of single residents in the typical compared French town is 25%.
15% of adults out of school have no qualification, fewer than in 74% 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
30% of adults out of school hold a higher-education qualification in the typical compared French town, against 28% in Biganos. To put it in context, nearly a fifth of adults out of school have no qualification in the typical compared French town.
Ranked by age, 12th oldest of 41 French towns this size
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 33.8 in Épinay-sous-Sénart to 52.7 in Villefranche-de-Rouergue.
Among its 6 nearest neighbors, 3 are older than Biganos
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Biganos | 45.9 | 23% | 2.1% | 3.7% |
| Le Teich 9,180 · 3.1 mi | 45.1 | 21% | 6.8% | 3.6% |
| Audenge 9,596 · 3.3 mi | 47.4 | 25% | 9% | 3.6% |
| Mios 12,043 · 3.3 mi | 39.8 | 14% | 1.8% | 3.6% |
| Gujan-Mestras 22,153 · 5.5 mi | 52.5 | 31% | 16% | 3.2% |
| Lanton 7,337 · 6.1 mi | 58.2 | 38% | 22% | 2.9% |
| Marcheprime 5,696 · 6.8 mi | 41.4 | 14% | 0.9% | 4.7% |
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 Biganos
What is the population of Biganos?
11,431 at INSEE’s 2023 census, 16% more than in 2012 (9,855).
How old are Biganos’ residents?
The median age is 45.9, older than 63% of compared French towns. 19% are under 18 and 23% 65 or older.
How many second homes are there in Biganos?
110, with occasional dwellings: 2.1% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Biganos?
INSEE counts 420 immigrants (born abroad, not French at birth), 3.7% of residents, and 250 foreign nationals (2.2%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Biganos?
€27,170 a year per consumption unit in 2023 (median of compared French towns €25,970); 9.0% 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.