Older than 91% of compared French towns: half of Senailly is over 53
Households in social housing are rarer here than in 99% of compared French towns. The 2023 Census put Senailly’s population at 132, in 59 households. The census found that 1.3% of homes are flats locally. The share of second homes is 9%, against 2.1% in the typical compared French town.
Throughout this page, the Côte-d'Or 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 Senailly
Fewer residents than in 2012
Senailly had 150 residents at the 2012 census and 132 in 2023, down 12%: slower growth than in 98% of compared French towns. Population ↓
An older town
Half of Senailly’s residents are under 53 and half over; the median of compared French towns is 44. 29% are 65 or older (France median 22%), 5.3% 80 or older. Ages ↓
Empty homes
The census found 12 homes empty (15%): 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 −12% change since 2012: slower than 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
Medians for comparison: +5% across compared French towns, −2% in Côte-d'Or.
Senailly ranks below 99% of compared French towns on residents aged 15 to 24: 6.1%
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Senailly 53. The median compared French town: 44.
29% of Senailly’s residents are 65 or older, against 24% in the median Côte-d'Or town and 22% in the median compared French town; 15% are under 18.
Women and men · all residents
47% women, 53% men
About 113 men for every 100 women. Median share of women: Côte-d'Or 52.8%, France 51.8%.
Senailly sits below 59% of compared French towns for one-person households (33%)
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 Côte-d'Or median and the France median
Living alone · share
On average, 2.2 people share a household. Single-parent households are rarer here than in 99% of compared French towns. As a reference point, just over a third of households are one person living alone in the typical compared French town. Senailly sits close to the norm on couples with children: 25%, about the same as in the typical compared French town.
A larger share of empty homes than 96% of compared French towns: 15%
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
One household in 20 has no car, against 11% in the median compared French town. The comparison figure for empty homes is 6.7% in the typical compared French town. Locally, 5.1% of households have no car.
€28,400 a year: the median standard of living
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.
Per consumption unit, half of residents live on more than €28,400 a year: higher than in 74% of compared French towns.
Households headed by a manager or professional make up 8.3% in Senailly, less than in 57% 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
Households headed by a manual worker are rarer here than in 99% of compared French towns. For households headed by a manager or professional, the comparison in the typical compared French town is 9.4%. Here, 33% of households are headed by a retired person.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Immigrants make up 0.8% in Senailly, less than in 99% 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, 4.3% of residents are foreign nationals; in Senailly, 0.8%. The comparison figure for immigrants is 6.5% 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.
63% of residents 15 and over are married, more than in 99% 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
With single residents at 17%, Senailly is behind 99% of compared French towns on that count. For married residents, the comparison in the typical compared French town is 43%.
Below 86% of compared French towns: 20% of adults out of school hold a higher-education qualification
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
Census figures put adults with no qualification at 18% in Senailly. In the typical compared French town, the share of graduates of higher education is 30%.
Ranked by age, 7th 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).
Senailly is older 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 |
|---|---|---|---|---|
| Senailly | 53 | 29% | 9% | 0.8% |
| Montbard 4,639 · 4.5 mi | 52.9 | 33% | 3.8% | 7.3% |
| Semur-en-Auxois 3,986 · 7.2 mi | 50.9 | 29% | 9.3% | 5.6% |
| Venarey-les-Laumes 2,747 · 9.4 mi | 49.2 | 27% | 3.1% | 5.4% |
| Avallon 6,305 · 17.9 mi | 50.5 | 30% | 5.6% | 12% |
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 Senailly
What is the population of Senailly?
132 at INSEE’s 2023 census, 12% fewer than in 2012 (150).
How old are Senailly’s residents?
The median age is 53, older than 91% of compared French towns. 15% are under 18 and 29% 65 or older.
How many second homes are there in Senailly?
7, with occasional dwellings: 9% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Senailly?
INSEE counts 1 immigrants (born abroad, not French at birth), 0.8% of residents, and 1 foreign nationals (0.8%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Senailly?
€28,400 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.