Half of Grèges is over 53.2, older than 91% of compared French towns
3.5% of homes are flats (typical compared French town: 30%). Grèges counted 830 residents and 360 households at the 2023 Census. Across Grèges, 20% of households are one person living alone. On households headed by a retired person, Grèges sits higher than 95% of compared French towns: 47%.
Throughout this page, the Seine-Maritime 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 Grèges
An older town
Half of Grèges’ residents are under 53.2 and half over; the median of compared French towns is 44. 28% are 65 or older (France median 22%), 4.7% 80 or older. Ages ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Grèges changed by +3% from 2012 to 2023, behind 58% 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
Against +5% for the median compared French town and ±0% for the median Seine-Maritime town, the change came in two steps: +4% from 2012 to 2017, then −1% to 2023.
A higher share of residents aged 65 and over than 80% of compared French towns, at 28%
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Grèges 53.2. The median compared French town: 44.
In the typical compared French town, the share of residents aged 15 to 24 is 11%; Grèges has 8.7%. Measured more widely, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
51% women, 49% men
About 96 men for every 100 women. Median share of women: Seine-Maritime 52.8%, France 51.8%.
In Grèges, 8.2% of households are single parents, fewer than in 78% 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 Seine-Maritime median and the France median
Living alone · share
Households average 2.3 people. In the typical compared French town, the share of single-parent households is 10%. Couples with children are about as common here as in the typical compared French town: 25%.
Households without a car: 4.2%, a lower share than 93% 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
Empty homes: 4.8% here and 6.7% in the typical compared French town. The comparison figure for households without a car is 11% in the typical compared French town. Census figures put households in social housing at 16% in Grèges. Second homes are rarer here than in 87% of compared French towns.
Standard of living at the median: €26,740 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 €26,740 a year per consumption unit, the median standard of living here is higher than in 59% of compared French towns.
Grèges ranks below 80% of compared French towns on households headed by a manual worker: 9.4%
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
With households headed by a manager or professional at 7%, Grèges is behind 68% of compared French towns on that count. The usual figure: 14% of households are headed by a manual worker in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Immigrants: 1.4%, a lower share than 97% 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 Seine-Maritime has 3.5%; immigrants here make up a share lower than in 97% of compared French towns. The comparison figure for immigrants is 6.5% in the typical compared French town. In Grèges, 0.7% 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.
58% of residents 15 and over are married, a share 99% of compared French towns don’t reach
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
17% of residents 15 and over are single, against 25% in the typical compared French town. For married residents, the comparison in the typical compared French town is 43%.
Only 18% of adults out of school hold a higher-education qualification in Grèges
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
With adults with no qualification at 24%, Grèges is ahead of 73% of compared French towns on that count. Elsewhere, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
7th highest median age among 41 French towns of 830 to 2,582
The 40 compared French towns nearest in population, by median age. Hover for each one’s second homes and immigrants; click for its page.
At the ends of the range sit Villejust (37.2), the youngest, and Prayssac (62.3), the oldest.
Grèges sits below 1 of its 6 closest neighbors on 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 |
|---|---|---|---|---|
| Grèges | 53.2 | 28% | 0.8% | 1.4% |
| Dieppe 28,496 · 2.7 mi | 50.5 | 30% | 12% | 4.4% |
| Petit-Caux 9,513 · 4.2 mi | 43.8 | 20% | 10% | 1.2% |
| Saint-Nicolas-d'Aliermont 3,665 · 4.6 mi | 49.2 | 29% | 1.1% | 1.2% |
| Offranville 3,242 · 5.8 mi | 50.1 | 28% | 3.9% | 1.5% |
| Criel-sur-Mer 2,527 · 10.6 mi | 54.9 | 33% | 44% | 2.6% |
| Le Tréport 4,378 · 13.8 mi | 53.2 | 32% | 37% | 1.8% |
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 Grèges
What is the population of Grèges?
830 at INSEE’s 2023 census, 3% more than in 2012 (807).
How old are Grèges’ residents?
The median age is 53.2, older than 91% of compared French towns. 18% are under 18 and 28% 65 or older.
How many second homes are there in Grèges?
3, with occasional dwellings: 0.8% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Grèges?
INSEE counts 12 immigrants (born abroad, not French at birth), 1.4% of residents, and 6 foreign nationals (0.7%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Grèges?
€26,740 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 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.