Cierzac sits above 99% of compared French towns for couples with children (42%)
Households without a car: 3.9%, below 95% of compared French towns. 6.3% of households rent social housing (HLM), a lower share than in 80% of compared French towns. The 2023 Census counted 323 residents in 130 households. Flats make up about one in 77 here (1.3%).
Throughout this page, the Charente-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 Cierzac
A town of families
42% of households are couples with children and 7.7% single parents with children; 25% of residents are under 15. Households ↓
A young town
Half of Cierzac’s residents are under 38.2 and half over; the median of compared French towns is 44. 25% are under 15 and 13% are 65 or older. Ages ↓
Empty homes
The census found 23 homes empty (15%): for sale, to let, awaiting work or simply unused. Homes & cars ↓
Growing fast
Cierzac had 271 residents at the 2012 census and 323 in 2023, up 19%: faster growth than in 89% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Faster growth than 89% of compared French towns: Cierzac changed by +19% 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
The median Charente-Maritime town changed +8% and the median compared French town +5%; here the first five years brought +13% and the next six +5%.
Below 97% of compared French towns: 13% of residents are 65 or over
Shares of residents by age at the 2023 census.
Age groups · share of residents
Median age of the 3,798 compared French towns
■ Cierzac 38.2. The median compared French town: 44.
Compared with 11% in the typical compared French town, nearly one in ten residents are 15 to 24 here. What’s more, with a median age of 38.2, Cierzac is younger than 87% of compared French towns. For comparison, 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
50% women, 50% men
About an even split. Median share of women: Charente-Maritime 53.1%, France 51.8%.
Fewer one-person households than 89% of compared French towns: 27%
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 Charente-Maritime median and the France median
Living alone · share
In the typical compared French town, 10% of households are single parents; in Cierzac, 7.7%. To put it in context, 35% of households are one person living alone in the typical compared French town. On average, 2.5 people share a household.
15% of homes stand empty, a share 95% of compared French towns don’t reach
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
On second homes, 1.3% here is much the same as in the typical compared French town. As a reference point, 6.7% of homes stand empty in the typical compared French town. Long tenure is the mark of 19% of households (30 years or more), short tenure of 7.8% (under two years).
Standard of living at the median: €25,310 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 €25,310 a year per consumption unit and half below; the level is lower than in 57% of compared French towns.
Cierzac ranks above 99% of compared French towns on households headed by a manual worker: 31%
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
32% of households are headed by a retired person in the typical compared French town, against 31% in Cierzac. Measured more widely, 14% of households are headed by a manual worker in the typical compared French town. Put another way, about one in 13: 7.7% of households are headed by a manager or professional.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
0.6% of residents are immigrants, below 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, the share of foreign nationals is 4.3%; Cierzac has 1.2%. 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.
A larger share of married residents than 85% of compared French towns: 48%
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
The share of single residents is 23%, against 25% in the typical compared French town. As a reference point, 43% of residents 15 and over are married in the typical compared French town.
Only 25% of adults out of school hold a higher-education qualification in Cierzac
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
The share of adults with no qualification is 16%, against 19% in the typical compared French town. In the typical compared French town, 30% of adults out of school hold a higher-education qualification.
Among 41 French towns of 323 to 2,582 people, the 2nd youngest
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).
Every neighbor is older than Cierzac
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
| Town | Median age | 65+ | Second homes | Immigrants |
|---|---|---|---|---|
| Cierzac | 38.2 | 13% | 1.3% | 0.6% |
| Châteaubernard 3,878 · 7.9 mi | 49.5 | 29% | 1.9% | 4.8% |
| Cognac 18,532 · 8.7 mi | 44.7 | 24% | 2.8% | 6.3% |
| Barbezieux-Saint-Hilaire 4,726 · 10.1 mi | 52.1 | 32% | 2.4% | 4.3% |
| Jonzac 3,602 · 10.4 mi | 54 | 36% | 26% | 5.1% |
| Jarnac 4,486 · 10.5 mi | 52.5 | 33% | 3.8% | 4.5% |
| Pons 4,343 · 11.4 mi | 50.3 | 30% | 3.1% | 7.1% |
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 Cierzac
What is the population of Cierzac?
323 at INSEE’s 2023 census, 19% more than in 2012 (271).
How old are Cierzac’s residents?
The median age is 38.2, younger than 87% of compared French towns. 31% are under 18 and 13% 65 or older.
How many second homes are there in Cierzac?
2, with occasional dwellings: 1.3% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Cierzac?
INSEE counts 2 immigrants (born abroad, not French at birth), 0.6% of residents, and 4 foreign nationals (1.2%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Cierzac?
€25,310 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.