Photo: Florian Pépellin · Public domain67% of homes are flats, more than in 88% of compared French towns
41% of households are one person living alone; in the typical compared French town the figure is 35%. The 2023 Census counted 6,954 residents in 3,290 households. Households in social housing: just over a fifth of the total. Higher than in just over two thirds of compared French towns: 15% of households have no car.
Throughout this page, the Savoie 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 Cognin
Growing fast
Cognin had 5,920 residents at the 2012 census and 6,954 in 2023, up 17%: faster growth than in 87% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
A +17% change since 2012: Cognin grew faster than 87% 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 +9% for the median Savoie town, the change came in two steps: +5% from 2012 to 2017, then +12% to 2023.
Half of Cognin is under 42, younger than 66% 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
■ Cognin 42. The median compared French town: 44.
Residents aged 15 to 24: 11%, near enough the figure in the typical compared French town. Locally, 23% of residents are 65 or over.
Women and men · all residents
53% women, 47% men
About 89 men for every 100 women. Median share of women: Savoie 51.5%, France 51.8%.
Below 64% of compared French towns: 22% of households are couples with children
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 Savoie median and the France median
Living alone · share
On average, 2.1 people share a household. Set beside that, 25% of households are couples with children in the typical compared French town. Nearly one in ten households are single parents, a lower share than in 60% of compared French towns.
Only 1.3% of homes are second homes in Cognin
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 13% of households; long-stayers (30 years or more) 20%. In the typical compared French town, 2.1% of homes are second homes. On empty homes, 6.1% here is much the same as in the typical compared French town.
At the median, €26,070 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 Cognin is €26,070 a year per consumption unit: higher than in 51% of compared French towns. Living below the poverty line: 13.0% of residents.
More households headed by a retired person than 64% of compared French towns: 35%
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
One in ten households are headed by a manager or professional, or about one in ten. To put it in context, nearly a third of households are headed by a retired person in the typical compared French town. At 14%, households headed by a manual worker sit close to the figure in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Cognin ranks above 74% of compared French towns on immigrants: 11%
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.
Foreign nationals: 7.7% here and 4.3% in the typical compared French town. The wider picture: 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.
Below 87% of compared French towns: 36% of residents 15 and over are married
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
25% of residents 15 and over are single in the typical compared French town, against 28% in Cognin. The share of married residents in the typical compared French town is 43%.
In Cognin, 37% of adults out of school hold a higher-education qualification, more than in 71% 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
16% of adults out of school have no qualification; in the typical compared French town the figure is 19%. The wider picture: 30% of adults out of school hold a higher-education qualification in the typical compared French town.
Of 41 French towns its size (6,873 to 7,031 people), the 17th 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 Bailly-Romainvilliers (34.9), the youngest, and Nérac (54.2), the oldest.
Cognin is younger than 3 of its 6 nearest neighbors
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Cognin | 42 | 23% | 1.3% | 11% |
| Jacob-Bellecombette 4,499 · 1 mi | 36.6 | 21% | 3.3% | 7.8% |
| Chambéry 59,964 · 1.4 mi | 37.6 | 19% | 3.6% | 17% |
| Barberaz 5,306 · 2.4 mi | 43.9 | 23% | 2.5% | 7% |
| Bassens 5,175 · 2.4 mi | 40.5 | 20% | 2.1% | 7.3% |
| La Motte-Servolex 12,067 · 2.8 mi | 46.1 | 25% | 1.7% | 5.5% |
| La Ravoire 9,332 · 3.2 mi | 42.5 | 22% | 1.8% | 9.8% |
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 Cognin
What is the population of Cognin?
6,954 at INSEE’s 2023 census, 17% more than in 2012 (5,920).
How old are Cognin’s residents?
The median age is 42, younger than 66% of compared French towns. 21% are under 18 and 23% 65 or older.
How many second homes are there in Cognin?
48, with occasional dwellings: 1.3% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Cognin?
INSEE counts 750 immigrants (born abroad, not French at birth), 11% of residents, and 540 foreign nationals (7.7%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Cognin?
€26,070 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 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.