Photo: LucasD · CC BY-SA 4.0Lagnieu ranks above 83% of compared French towns on households headed by a manual worker: 20%
39% of households are one person living alone (typical compared French town: 35%). More households in social housing than in 73% of compared French towns: 19%. In 2023, the Census found 7,411 residents in Lagnieu, living in 3,460 households. The census found that 44% of homes are flats locally.
Throughout this page, the Ain 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.
From 2012 to 2023, Lagnieu outgrew 67% of compared French towns: +9%
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
For comparison, the median compared French town changed +5% and the median Ain town +13%.
A median age of 43.1: Lagnieu is younger than 57% 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
■ Lagnieu 43.1. The median compared French town: 44.
10% of residents are 15 to 24, fewer than in 58% of compared French towns. In Lagnieu, 23% of residents are 65 or over.
Women and men · all residents
52% women, 48% men
About 93 men for every 100 women. Median share of women: Ain 51.0%, France 51.8%.
A lower share of single-parent households than 67% of compared French towns, at 8.9%
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 Ain median and the France median
Living alone · share
Each household has 2.1 people on average. Higher than in 51% of compared French towns: 25% of households are couples with children. Elsewhere, one in ten households are single parents in the typical compared French town.
55% of homes are houses
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
Long tenure is the mark of 16% of households (30 years or more), short tenure of 12% (under two years). Compared with other places, empty homes are common here: 7.3%, more than in 57% of compared French towns. At 11%, households without a car sit close to the figure in the typical compared French town.
A median of €26,680 a year per consumption unit
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 Lagnieu is €26,680 a year per consumption unit: higher than in 58% of compared French towns. The poverty rate is 11.0%.
The largest group of households: retired (32%)
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
Nearly one in ten households are headed by a manager or professional. Lower than in 53% of compared French towns: 32% of households are headed by a retired person.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
4% of residents are foreign nationals, fewer than in 52% 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.
The median compared commune in Ain has 8.5%; immigrants here make up a share higher than in 56% of compared French towns. Immigrants: 7.3% of the total. Across the comparison, 4.3% of residents are foreign nationals 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.
24% of residents 15 and over are single, fewer than in 64% 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
Locally, 43% of residents 15 and over are married. For single residents, the comparison in the typical compared French town is 25%.
Lagnieu ranks below 64% of compared French towns on graduates of higher education: 26%
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
Here just over a fifth of adults out of school have no qualification, where the figure in the typical compared French town is 19%. The share of graduates of higher education in the typical compared French town is 30%.
17th lowest median age among 41 French towns of 7,311 to 7,509
The 40 compared French towns nearest in population, by median age. Hover for each one’s second homes and immigrants; click for its page.
Gières is the youngest (36); Perros-Guirec the oldest (62.4).
Every neighbor is younger than Lagnieu
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Lagnieu | 43.1 | 23% | 2.1% | 7.3% |
| Ambérieu-en-Bugey 15,934 · 4.2 mi | 37.5 | 18% | 1.4% | 13% |
| Villieu-Loyes-Mollon 3,849 · 5.8 mi | 41.1 | 17% | 3.2% | 3.4% |
| Montalieu-Vercieu 3,510 · 6.6 mi | 38.3 | 16% | 4.1% | 5% |
| Meximieux 8,247 · 7 mi | 39 | 18% | 2.2% | 7.5% |
| Ambronay 2,841 · 7.4 mi | 42.1 | 19% | 2.9% | 3.3% |
| Saint-Maurice-de-Gourdans 2,903 · 9.3 mi | 41.6 | 16% | 3.7% | 2.8% |
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 Lagnieu
What is the population of Lagnieu?
7,411 at INSEE’s 2023 census, 9% more than in 2012 (6,789).
How old are Lagnieu’s residents?
The median age is 43.1, younger than 57% of compared French towns. 22% are under 18 and 23% 65 or older.
How many second homes are there in Lagnieu?
80, with occasional dwellings: 2.1% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Lagnieu?
INSEE counts 540 immigrants (born abroad, not French at birth), 7.3% of residents, and 300 foreign nationals (4%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Lagnieu?
€26,680 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.