Older than 94% of compared French towns: half of Serqueux is over 55.5
2.8% of homes are flats; in the typical compared French town the figure is 30%. Serqueux counted 377 residents and 190 households at the 2023 Census. For Serqueux, the census puts couples with children at 19%. Households in social housing are rarer here than in 99% of compared French towns.
Throughout this page, the Haute-Marne 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 Serqueux
One home in five is a second home
The census counted 68 second homes and occasional dwellings in Serqueux, 21% of its 320 homes: higher than in 93% of compared French towns. 97% of them are houses. Their owners live elsewhere, so they aren’t in the population figures on this page. Homes & cars ↓
Fewer residents than in 2012
Serqueux had 451 residents at the 2012 census and 377 in 2023, down 16%: slower growth than in 99% of compared French towns. Population ↓
An older town
Half of Serqueux’s residents are under 55.5 and half over; the median of compared French towns is 44. 35% are 65 or older (France median 22%), 7.8% 80 or older. Ages ↓
Empty homes
The census found 66 homes empty (21%): for sale, to let, awaiting work or simply unused. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
A higher share of empty homes than 99% of compared French towns, at 21%
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
In the typical compared French town, 2.1% of homes are second homes; in Serqueux, 21%. As a reference point, 6.7% of homes stand empty in the typical compared French town. Locally, 4.4% of households have no car.
Slower growth than 99% of compared French towns: Serqueux changed by −16% 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
From 2012 to 2017 the population moved −8%, and from 2017 to 2023 −9%; the median compared French town changed +5% and the median Haute-Marne town −9%.
5.8% of residents are 15 to 24, fewer than in 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
■ Serqueux 55.5. The median compared French town: 44.
Just over a third of Serqueux’s residents are 65 or older, against 27% in the median Haute-Marne town and 22% in the median compared French town; 14% are under 18. As a reference point, 11% of residents are 15 to 24 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: Haute-Marne 52.0%, France 51.8%.
Serqueux ranks above 84% of compared French towns on single-parent households: 13%
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 Haute-Marne median and the France median
Living alone · share
Average household size: 2 people. Single-parent households: 10% in the typical compared French town, for comparison. 34% of households are one person living alone; in the typical compared French town the figure is 35%.
The middle resident’s standard of living: €24,250 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 residents live in households above €24,250 a year per consumption unit and half below; the level is lower than in 68% of compared French towns.
A larger share of households headed by a retired person than 92% of compared French towns: 44%
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 manager or professional are rarer here than in 99% of compared French towns. As a reference point, 32% of households are headed by a retired person in the typical compared French town. For Serqueux, the census puts households headed by a manual worker at 18%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Immigrants: 1.5%, 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.
Against a figure of 4.3% in the typical compared French town, the share of foreign nationals in Serqueux comes in at 1%. Set beside that, 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.
Fewer single residents than 98% of compared French towns: 18%
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
43% of residents 15 and over are married in the typical compared French town, against 45% in Serqueux. The comparison figure for single residents is 25% in the typical compared French town.
Fewer graduates of higher education than 98% of compared French towns: 15%
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
Here just over a fifth of adults out of school have no qualification, where the figure in the typical compared French town is 19%. As a reference point, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
Ranked by age, 5th oldest of 41 French towns this size
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 Prayssac (62.3).
Around Serqueux, 1 of 2 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 |
|---|---|---|---|---|
| Serqueux | 55.5 | 35% | 21% | 1.5% |
| Contrexéville 2,923 · 15.2 mi | 50.2 | 28% | 5.6% | 10% |
| Vittel 4,780 · 17.6 mi | 56.6 | 36% | 14% | 5.9% |
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 Serqueux
What is the population of Serqueux?
377 at INSEE’s 2023 census, 16% fewer than in 2012 (451).
How old are Serqueux’s residents?
The median age is 55.5, older than 94% of compared French towns. 14% are under 18 and 35% 65 or older.
How many second homes are there in Serqueux?
68, with occasional dwellings: 21% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Serqueux?
INSEE counts 6 immigrants (born abroad, not French at birth), 1.5% of residents, and 4 foreign nationals (1%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Serqueux?
€24,250 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 8, 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.