Half of Gergny is over 52, older than 89% of compared French towns
9.7% of homes are second homes; in the typical compared French town the figure is 2.1%. The 2023 Census counted 127 residents in 59 households. Households without a car account for 5.5%. On empty homes, Gergny sits higher than 83% of compared French towns: 11%.
Throughout this page, the Aisne 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 Gergny
Fewer residents than in 2012
Gergny had 146 residents at the 2012 census and 127 in 2023, down 13%: slower growth than in 99% of compared French towns. Population ↓
An older town
Half of Gergny’s residents are under 52 and half over; the median of compared French towns is 44. 28% are 65 or older (France median 22%), 2.5% 80 or older. Ages ↓
A town of families
33% of households are couples with children and 0% single parents with children; 9.3% of residents are under 15. Households ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Gergny’s population moved −13% on 2012, less than in 99% 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, −4% in Aisne. Here the change came as −8% to 2017, then −6% to 2023.
Residents aged 65 and over make up 28% in Gergny, more than in 80% 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
■ Gergny 52. The median compared French town: 44.
Against a figure of 11% in the typical compared French town, the share of residents aged 15 to 24 in Gergny comes in at 10%. Measured more widely, 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: Aisne 52.5%, France 51.8%.
25% of households are one person living alone, below 94% 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 Aisne median and the France median
Living alone · share
Couples with children: 33% here and 25% in the typical compared French town. In the typical compared French town, one-person households come to 35%. Households average 2.2 people. Single-parent households are rarer here than in 99% of compared French towns.
100% of homes are houses
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
Flats are rarer here than in 99% of compared French towns. Turnover: 3.6% of households moved in less than two years ago, and 36% have lived in their home 30 years or more.
A typical living standard of €23,730 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.
Living standards centre on €23,730 a year per consumption unit: lower than in 75% of compared French towns.
A smaller share of households headed by a retired person than 83% of compared French towns: 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
The figure for households headed by a manual worker is 17% in Gergny and 14% in the typical compared French town. 8.3% of households are headed by a manager or professional. Households headed by a retired person make up 32% in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
Gergny ranks below 86% of compared French towns on immigrants: 2.5%
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.
Here 1.7% of residents are foreign nationals, where the figure in the typical compared French town is 4.3%. Measured more widely, 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.
50% of residents 15 and over are married, more than in 89% 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
The figure for single residents is 22% in Gergny and 25% in the typical compared French town. By way of comparison, 43% of residents 15 and over are married in the typical compared French town.
Fewer graduates of higher education than 90% of compared French towns: 18%
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
Against a figure of 19% in the typical compared French town, the share of adults with no qualification in Gergny comes in at 14%. Elsewhere, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
The 9th oldest of 41 French towns of 127 to 2,582 people
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).
Every neighbor is younger than Gergny
The nearest towns of 2,500 or more, colored by median age. Source: INSEE, census 2023.
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 Gergny
What is the population of Gergny?
127 at INSEE’s 2023 census, 13% fewer than in 2012 (146).
How old are Gergny’s residents?
The median age is 52, older than 89% of compared French towns. 14% are under 18 and 28% 65 or older.
How many second homes are there in Gergny?
7, with occasional dwellings: 9.7% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Gergny?
INSEE counts 3 immigrants (born abroad, not French at birth), 2.5% of residents, and 2 foreign nationals (1.7%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Gergny?
€23,730 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.