In Effry, 5.5% of homes are flats, fewer than in 95% of compared French towns
Households in social housing are rarer here than in 99% of compared French towns. At the 2023 Census, 307 people lived in Effry, in 140 households. The share of households headed by a manual worker stands at 32%. In the typical compared French town, the share of residents aged 65 and over is 22%; Effry has 19%.
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 Effry
Fewer residents than in 2012
Effry had 343 residents at the 2012 census and 307 in 2023, down 10%: slower growth than in 97% of compared French towns. Population ↓
Empty homes
The census found 21 homes empty (13%): for sale, to let, awaiting work or simply unused. Homes & cars ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
−10% since 2012, a pace below 97% 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
Against +5% for the median compared French town and −4% for the median Aisne town, the change came in two steps: −6% from 2012 to 2017, then −5% to 2023.
Residents aged 15 to 24 make up 9.1% in Effry, less 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
■ Effry 42.6. The median compared French town: 44.
With a median age of 42.6, Effry is younger than 61% of compared French towns. To put it in context, 11% of residents are 15 to 24 in the typical compared French town.
Women and men · all residents
51% women, 49% men
About an even split. Median share of women: Aisne 52.5%, France 51.8%.
Only 7.1% of households are single parents in Effry
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
Average household size: 2.2 people. At 33%, the share of one-person households is lower than in 59% of compared French towns. In the typical compared French town, the share of single-parent households is 10%. The figure for couples with children is 24% in Effry and 25% in the typical compared French town.
More empty homes than 91% of compared French towns: 13%
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
Households without a car make up 15%, against 11% in the typical compared French town. Measured more widely, 6.7% of homes stand empty in the typical compared French town. Nearly one in ten households moved in less than two years ago; 32% have been in their home 30 years or more. More second homes than in 55% of compared French towns: 2.4%.
€18,100 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.
The midpoint of living standards here is €18,100 a year per consumption unit, lower than in 99% of compared French towns.
In Effry, 40% of households are headed by a retired person, more than in 84% 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 manager or professional are rarer here than in 99% of compared French towns. The comparison figure for households headed by a retired person is 32% in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
0.3% of residents are immigrants, fewer 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.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
Single residents: 22%, a lower share than 79% 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
In Effry, 44% of residents 15 and over are married. The benchmark for single residents in the typical compared French town: 25%.
A lower share of graduates of higher education than 99% 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
By its share of adults with no qualification (44%), Effry is above 99% of compared French towns. Elsewhere, 30% of adults out of school hold a higher-education qualification in the typical compared French town.
The 10th youngest of 41 French towns of 307 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.
Villejust is the youngest (37.2); Prayssac the oldest (62.3).
Effry sits below 3 of its 6 closest neighbors on median age
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 Effry
What is the population of Effry?
307 at INSEE’s 2023 census, 10% fewer than in 2012 (343).
How old are Effry’s residents?
The median age is 42.6, younger than 61% of compared French towns. 23% are under 18 and 19% 65 or older.
How many second homes are there in Effry?
4, with occasional dwellings: 2.4% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Effry?
INSEE counts 1 immigrants (born abroad, not French at birth), 0.3% of residents, and 0 foreign nationals (0%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Effry?
€18,100 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.