Couples with children: 47%, a higher share than 99% of compared French towns
3.3% of households rent social housing (HLM); in the typical compared French town the figure is 12%. At the 2023 Census, 300 people lived in Plan, in 120 households. Residents aged 15 to 24 make up about one in 13 here (7.6%). This Isère town has fewer flats than 89% of compared French towns, at 8.6%.
Throughout this page, the Isère 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 Plan
A town of families
47% of households are couples with children and 8.2% single parents with children; 24% of residents are under 15. Households ↓
A young town
Half of Plan’s residents are under 37.3 and half over; the median of compared French towns is 44. 24% are under 15 and 15% are 65 or older. Ages ↓
Growing fast
Plan had 252 residents at the 2012 census and 300 in 2023, up 19%: faster growth than in 89% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
A growing town: +19% since 2012, faster than 89% 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
From 2012 to 2017 the change was +4%; from 2017 to 2023, +15%. Over the same years the median compared French town changed +5%, the median Isère town +7%.
Half of Plan is under 37.3, younger than 90% 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
■ Plan 37.3. The median compared French town: 44.
In the typical compared French town, the share of residents aged 65 and over is 22%; Plan has 15%.
Women and men · all residents
50% women, 50% men
About an even split. Median share of women: Isère 51.3%, France 51.8%.
Fewer one-person households than 96% of compared French towns: 24%
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 Isère median and the France median
Living alone · share
Households here average 2.6 people each. The comparison figure for one-person households is 35% in the typical compared French town. Single-parent households are rarer here than in 77% of compared French towns.
5.8% of homes in Plan are second homes
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
Households that moved in under two years ago: 5.9%. Those in their home 30 years or more: 20%. Compared with other places, households without a car are scarce here: 5.7%, fewer than in 83% of compared French towns. In the typical compared French town, the share of second homes is 2.1%. One household in 18 has no car (median compared French town: 11%).
Median standard of living: €25,040 a year
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.
At €25,040 a year per consumption unit, the median standard of living here is lower than in 60% of compared French towns.
4.5% of households are headed by a manager or professional, fewer than in 90% 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
Just over one in ten households are headed by a manual worker, against 14% in the typical compared French town. By way of comparison, nearly one in ten households are headed by a manager or professional in the typical compared French town. Households headed by a retired person account for 37%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Immigrants: 2.2%, a lower share than 89% 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.
4.3% of residents are foreign nationals in the typical compared French town, against 1% in Plan. Elsewhere, 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.
21% of residents 15 and over are single, fewer than in 89% 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
Against a figure of 43% in the typical compared French town, the share of married residents in Plan comes in at 49%. Typically, 25% of residents 15 and over are single in the typical compared French town.
Only 16% of adults out of school have no qualification in Plan
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
Across Plan, 29% of adults out of school hold a higher-education qualification. Adults with no qualification: 19% in the typical compared French town, for comparison.
Of 41 French towns its size (300 to 2,582 people), the 2nd 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.
Villejust is the youngest (37.2); Prayssac the oldest (62.3).
Plan 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 |
|---|---|---|---|---|
| Plan | 37.3 | 15% | 5.8% | 2.2% |
| Saint-Étienne-de-Saint-Geoirs 3,425 · 3 mi | 43 | 23% | 4.4% | 6.8% |
| Tullins 7,624 · 4.9 mi | 47 | 23% | 1% | 9.9% |
| Renage 3,348 · 5 mi | 44 | 21% | 1.5% | 11% |
| Rives 6,549 · 5.9 mi | 42.9 | 22% | 1.7% | 9.6% |
| Le Grand-Lemps 3,083 · 6 mi | 44.2 | 21% | 2.6% | 8.3% |
| Saint-Siméon-de-Bressieux 3,186 · 6.5 mi | 44.2 | 24% | 2.6% | 8.6% |
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 Plan
What is the population of Plan?
300 at INSEE’s 2023 census, 19% more than in 2012 (252).
How old are Plan’s residents?
The median age is 37.3, younger than 90% of compared French towns. 28% are under 18 and 15% 65 or older.
How many second homes are there in Plan?
8, with occasional dwellings: 5.8% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Plan?
INSEE counts 7 immigrants (born abroad, not French at birth), 2.2% of residents, and 3 foreign nationals (1%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Plan?
€25,040 a year per consumption unit in 2023 (median of compared French towns €25,970). 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.