A median age of 66.3: Grenois is older than 99% of compared French towns
The share of households headed by a retired person is 80%, against 32% in the typical compared French town. There were 56 households in Grenois at the 2023 Census, home to 93 residents. Here, two in five households are one person living alone. More empty homes than in 71% of compared French towns: 8.8%.
Throughout this page, the Nièvre 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 Grenois
One home in two is a second home
The census counted 58 second homes and occasional dwellings in Grenois, 46% of its 130 homes: higher than in 97% of compared French towns. 100% of them are houses. Their owners live elsewhere, so they aren’t in the population figures on this page. Homes & cars ↓
An older town
Half of Grenois’ residents are under 66.3 and half over; the median of compared French towns is 44. 53% are 65 or older (France median 22%), 20% 80 or older. Ages ↓
Fewer residents than in 2012
Grenois had 105 residents at the 2012 census and 93 in 2023, down 11%: slower growth than in 98% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
In Grenois, 46% of homes are second homes, more than in 97% 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
Households in social housing are rarer here than in 99% of compared French towns. For comparison, 2.1% of homes are second homes in the typical compared French town. About one in eight: that is how common households without a car are in Grenois (13%).
−11% since 2012, a pace below 98% 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 population moved −8%, and from 2017 to 2023 −4%; the median compared French town changed +5% and the median Nièvre town −8%.
Residents aged 65 and over: 53%, a higher share than 99% 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
■ Grenois 66.3. The median compared French town: 44.
Here 5.4% of residents are 15 to 24, where the figure in the typical compared French town is 11%. By way of comparison, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
48% women, 52% men
About 107 men for every 100 women. Median share of women: Nièvre 53.7%, France 51.8%.
10% of households are single parents, fewer than in 50% of compared French towns
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 Nièvre median and the France median
Living alone · share
Couples with children are rarer here than in 99% of compared French towns. Average household size: 1.7 people.
The largest group of households: retired (80%)
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
Households headed by a manual worker are rarer here than in 99% of compared French towns.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
In Grenois, 7.5% of residents are foreign nationals, more than in 72% 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.
In the typical compared French town, 6.5% of residents are immigrants; in Grenois, 8.6%. Immigrants make up a share higher than in 64% of compared French towns; the median compared commune in Nièvre has 5.9%. The share of foreign nationals in the typical compared French town is 4.3%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Single residents make up 18% in Grenois, less than in 97% 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
Married residents: 48%, above 84% of compared French towns. As a yardstick, 25% of residents 15 and over are single in the typical compared French town.
Grenois ranks above 98% of compared French towns on adults with no qualification: 36%
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
Graduates of higher education: 19% here and 30% in the typical compared French town.
The oldest of 41 French towns of 93 to 2,582 people
The 40 compared French towns nearest in population, by median age. Hover for each one’s second homes and immigrants; click for its page.
The youngest is Villejust (37.2), the oldest Grenois (66.3).
Grenois and the towns 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 |
|---|---|---|---|---|
| Grenois | 66.3 | 53% | 46% | 8.6% |
| Clamecy 3,544 · 9.5 mi | 49.8 | 31% | 6.8% | 11% |
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 Grenois
What is the population of Grenois?
93 at INSEE’s 2023 census, 11% fewer than in 2012 (105).
How old are Grenois’ residents?
The median age is 66.3, older than 99% of compared French towns. 9.7% are under 18 and 53% 65 or older.
How many second homes are there in Grenois?
58, with occasional dwellings: 46% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Grenois?
INSEE counts 8 immigrants (born abroad, not French at birth), 8.6% of residents, and 7 foreign nationals (7.5%). The medians of compared French towns are 6.5% and 4.3%.
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.