Below 96% of compared French towns: 24% of households are one person living alone
Households headed by a manager or professional are rarer here than in 99% of compared French towns. Grez had 272 residents in 110 households at the 2023 Census. 5.5% of households have no car, or about one in 18. The share of second homes tops 77% of compared French towns: 5.1%.
Throughout this page, the Oise 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 Grez
A young town
Half of Grez’s residents are under 38.6 and half over; the median of compared French towns is 44. 21% are under 15 and 16% are 65 or older. Ages ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
From 2012 to 2023, 60% of compared French towns grew faster than Grez: +2%
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
Over the same years the median compared French town changed +5%, the median Oise town +2%.
Half of Grez is under 38.6, younger than 86% 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
■ Grez 38.6. The median compared French town: 44.
Set against 22% in the typical compared French town, 16% of residents are 65 or over in Grez. Across Grez, 8.4% of residents are 15 to 24.
Women and men · all residents
50% women, 50% men
About an even split. Median share of women: Oise 51.7%, France 51.8%.
13% of households are single parents, more than in 87% 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 Oise median and the France median
Living alone · share
Set against 25% in the typical compared French town, 27% of households are couples with children in Grez. In the typical compared French town, one in ten households are single parents. Households average 2.4 people.
100% 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
Flats are rarer here than in 99% of compared French towns. Households that moved in under two years ago: 4.7%. Those in their home 30 years or more: 20%. One household in 18 has no car, against 11% in the median compared French town.
Per consumption unit, the median standard of living is €24,950 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.
Half of Grez’s residents live in households with a standard of living below €24,950 a year per consumption unit, and half above: lower than in 61% of compared French towns.
Grez sits above 99% of compared French towns for households headed by a manual worker (29%)
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
The share of households headed by a retired person stands at 33%. In the typical compared French town, households headed by a manual worker come to 14%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Only 1.1% of residents are immigrants in Grez
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.
Immigrants make up a share lower than in 99% of compared French towns; the median compared commune in Oise has 7.4%. In the typical compared French town, the share of immigrants is 6.5%. Here, 0.4% of residents are foreign nationals.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Below 83% of compared French towns: 21% of residents 15 and over are single
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
For Grez, the census puts married residents at 43%. Elsewhere, 25% of residents 15 and over are single in the typical compared French town.
Grez sits below 79% of compared French towns for graduates of higher education (22%)
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
By its share of adults with no qualification (15%), Grez is below 74% of compared French towns. The share of graduates of higher education in the typical compared French town is 30%.
The 2nd youngest of 41 French towns of 272 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.
Villejust is the youngest (37.2); Prayssac the oldest (62.3).
Around Grez, 4 of 5 towns have a higher median age
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Grez | 38.6 | 16% | 5.1% | 1.1% |
| Grandvilliers 2,786 · 2.5 mi | 51.1 | 31% | 2% | 2.6% |
| Crèvecœur-le-Grand 3,462 · 5.1 mi | 43.7 | 24% | 1.2% | 1.9% |
| Breteuil 4,222 · 14.1 mi | 42.7 | 23% | 1.3% | 2.8% |
| Beauvais 55,550 · 15 mi | 38.4 | 18% | 1.6% | 15% |
| Gournay-en-Bray 5,723 · 15.8 mi | 51.9 | 31% | 1.4% | 4.4% |
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 Grez
What is the population of Grez?
272 at INSEE’s 2023 census, 2% more than in 2012 (266).
How old are Grez’s residents?
The median age is 38.6, younger than 86% of compared French towns. 24% are under 18 and 16% 65 or older.
How many second homes are there in Grez?
7, with occasional dwellings: 5.1% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Grez?
INSEE counts 3 immigrants (born abroad, not French at birth), 1.1% of residents, and 1 foreign nationals (0.4%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Grez?
€24,950 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 October 30, 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.