More couples with children than 99% of compared French towns: 47%
13% of residents are 65 or over, against 22% in the typical compared French town. Households without a car make up about one in 100 here (1%). Compared with other places, households headed by a manual worker are common here: 26%, more than in 97% of compared French towns. Izier counted 783 residents and 290 households at the 2023 Census.
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 Izier
A town of families
47% of households are couples with children and 9% single parents with children; 19% of residents are under 15. Households ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Since 2012, Izier has changed by −3%, slower than 81% 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
For comparison, the median compared French town changed +5% and the median Côte-d'Or town −2%. The first five years brought −1%; the six to 2023, −1%.
A higher share of residents aged 15 to 24 than 93% of compared French towns, at 14%
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Izier 41.3. The median compared French town: 44.
Half of Izier’s residents are under 41.3, younger than in 71% of compared French towns. The wider picture: 11% of residents are 15 to 24 in the typical compared French town.
Women and men · all residents
49% women, 51% men
About 105 men for every 100 women. Median share of women: Côte-d'Or 52.8%, France 51.8%.
Only 13% of households are one person living alone in Izier
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
Single-parent households: 9% here and 10% in the typical compared French town. For one-person households, the comparison in the typical compared French town is 35%. Households average 2.7 people.
Fewer flats than 99% of compared French towns: 2.7%
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
Of all households, 12% moved in during the last two years and 24% have stayed three decades or more. Elsewhere, 30% of homes are flats in the typical compared French town. Fewer empty homes than in 97% of compared French towns: 2.7%. What’s more, with households in social housing at 4.2%, Izier is behind 90% of compared French towns on that count.
The middle resident’s standard of living: €29,660 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 €29,660 a year per consumption unit, the median standard of living here is higher than in 83% of compared French towns.
Izier ranks below 82% of compared French towns on households headed by a retired person: 25%
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
In the typical compared French town, 9.4% of households are headed by a manager or professional; in Izier, 12%. The benchmark for households headed by a retired person in the typical compared French town: 32%.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Below 82% of compared French towns: 3% of residents are immigrants
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 Izier comes in at 1.4%. 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.
Above 92% of compared French towns: 50% of residents 15 and over are married
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
In the typical compared French town, the share of single residents is 25%; Izier has 21%. Married residents: 43% in the typical compared French town, for comparison.
A lower share of adults with no qualification than 93% of compared French towns, at 11%
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: 36% here and 30% in the typical compared French town. The wider picture: 19% of adults out of school have no qualification in the typical compared French town.
6th lowest median age among 41 French towns of 783 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.
Median age: 5 of the 6 towns around Izier are older
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Izier | 41.3 | 13% | 2.3% | 3% |
| Chevigny-Saint-Sauveur 11,108 · 3 mi | 43.3 | 23% | 1.2% | 7.2% |
| Genlis 5,093 · 3.3 mi | 44.9 | 22% | 1.1% | 3.7% |
| Neuilly-Crimolois 3,588 · 3.6 mi | 37.2 | 18% | 0.4% | 7.7% |
| Arc-sur-Tille 2,584 · 4.1 mi | 46 | 21% | 0.9% | 2.8% |
| Quetigny 8,971 · 4.3 mi | 45.9 | 24% | 1.1% | 13% |
| Saint-Apollinaire 7,544 · 6 mi | 45.2 | 24% | 0.9% | 7.2% |
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 Izier
What is the population of Izier?
783 at INSEE’s 2023 census, 3% fewer than in 2012 (805).
How old are Izier’s residents?
The median age is 41.3, younger than 71% of compared French towns. 25% are under 18 and 13% 65 or older.
How many second homes are there in Izier?
7, with occasional dwellings: 2.3% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Izier?
INSEE counts 23 immigrants (born abroad, not French at birth), 3% of residents, and 11 foreign nationals (1.4%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Izier?
€29,660 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.