Couples with children: 13%, a lower share than 94% of compared French towns
In the typical compared French town, just over one in ten residents are 15 to 24; in Auch, 14%. The town counted 22,428 residents and 12,070 households at the 2023 Census. Locally, 19% of households have no car. More flats than in 78% of compared French towns: 53%.
Throughout this page, the Gers 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 Auch
Many people living alone
54% of Auch’s households are one person: higher than in 98% of compared French towns; 37% of residents 65 and over live alone. Households ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Slower growth than 61% of compared French towns: Auch changed by +2% 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
Here the change came as ±0% to 2017, then +2% to 2023.
Auch sits above 76% of compared French towns for residents aged 65 and over (27%)
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Auch 46.8. The median compared French town: 44.
With a median age of 46.8, Auch is older than just over two thirds of compared French towns. For comparison, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
52% women, 48% men
About 91 men for every 100 women. Median share of women: Gers 52.4%, France 51.8%. Women live longer than men, so towns with many older residents have more women.
More one-person households than 98% of compared French towns: 54%
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 Gers median and the France median
Living alone · share
The typical household size is 1.8 people. The usual figure: just over a third of households are one person living alone in the typical compared French town. Single-parent households account for 9.4%.
Empty homes make up 9.4% in Auch, more than in 75% 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
At 3%, the share of second homes is in line with the figure in the typical compared French town. Across Auch, 14% of households rent social housing (HLM). Empty homes make up 6.7% in the typical compared French town.
The median resident lives on €24,080 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.
Per consumption unit, half of residents live on more than €24,080 a year: lower than in 70% of compared French towns. Below the poverty line: 19.1% of residents.
In Auch, 13% of households are headed by a manual worker, fewer than in 58% 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
9% of households are headed by a manager or professional. Fewer households headed by a retired person than in 53% of compared French towns: 32%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
A larger share of immigrants than 79% of compared French towns: 12%
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.
One in ten residents are foreign nationals (typical compared French town: 4.3%). 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.
Auch ranks below 96% of compared French towns on married residents: 32%
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 the typical compared French town, the share of single residents is 25%; Auch has 35%. Against that, 43% of residents 15 and over are married in the typical compared French town.
33% of adults out of school hold a higher-education qualification, more than in 60% 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
The census found that 20% of adults out of school have no qualification in Auch. For graduates of higher education, the comparison in the typical compared French town is 30%.
Among 41 French towns of 21,692 to 23,200 people, the 8th oldest
The 40 compared French towns nearest in population, by median age. Hover for each one’s second homes and immigrants; click for its page.
Loos is the youngest (33); Challans the oldest (52.5).
Auch is younger than every town around it
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Auch | 46.8 | 27% | 3% | 12% |
| Pavie 2,566 · 2.6 mi | 51.9 | 31% | 1.7% | 5.8% |
| Mirande 3,457 · 13 mi | 53.2 | 34% | 3.8% | 7.9% |
| Fleurance 6,247 · 14.1 mi | 54.3 | 34% | 4.5% | 6.9% |
| Gimont 3,146 · 14.5 mi | 47.9 | 28% | 2.9% | 4.6% |
| Vic-Fezensac 3,577 · 16.2 mi | 53.7 | 34% | 4.6% | 6.1% |
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 Auch
What is the population of Auch?
22,428 at INSEE’s 2023 census, 2% more than in 2012 (21,960).
How old are Auch’s residents?
The median age is 46.8, older than 68% of compared French towns. 17% are under 18 and 27% 65 or older.
How many second homes are there in Auch?
410, with occasional dwellings: 3% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Auch?
INSEE counts 2,800 immigrants (born abroad, not French at birth), 12% of residents, and 2,240 foreign nationals (10%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Auch?
€24,080 a year per consumption unit in 2023 (median of compared French towns €25,970); 19.1% 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.