Younger than 87% of compared French towns: half of Iwuy is under 38.2
Here 24% of households are headed by a manual worker, where the figure in the typical compared French town is 14%. Census day 2023: 3,403 residents and 1,420 households in Iwuy. Put another way, about one in ten: one in ten homes are flats. Compared with other places, one-person households are scarce here: 31%, fewer than in nearly three quarters of compared French towns.
Throughout this page, the Nord 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 Iwuy
A young town
Half of Iwuy’s residents are under 38.2 and half over; the median of compared French towns is 44. 20% are under 15 and 18% are 65 or older. Ages ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Faster growth than 52% of compared French towns: Iwuy changed by +5% 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
In two steps, +4% to 2017 and +2% after, the town’s change compares with +5% for the median compared French town and ±0% in Nord.
Below 77% of compared French towns: 18% 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
■ Iwuy 38.2. The median compared French town: 44.
Residents aged 15 to 24: 12%, above 73% of compared French towns. The wider picture: 22% of residents are 65 or over in the typical compared French town.
Women and men · all residents
51% women, 49% men
About an even split. Median share of women: Nord 51.9%, France 51.8%.
Above 89% of compared French towns: 13% of households are single parents
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 Nord median and the France median
Living alone · share
The typical household size is 2.4 people. 30% of households are couples with children, a higher share than in 76% of compared French towns. The usual figure: 10% of households are single parents in the typical compared French town.
Fewer households in social housing than 62% of compared French towns: 9.6%
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
In the last two years, just over one in ten households moved in; at the other end, 23% have stayed 30 years or more. The share of households in social housing in the typical compared French town is 12%. Second homes are rarer here than in 77% of compared French towns. With households without a car at 13%, Iwuy is ahead of 62% of compared French towns on that count.
Median living standard: €22,640 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.
Per consumption unit, half of residents live on more than €22,640 a year: lower than in 84% of compared French towns. Some 17.0% of residents fall below the poverty line.
Households headed by a retired person make up 28% in Iwuy, less than in 73% 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
Iwuy has fewer households headed by a manager or professional than 57% of compared French towns, at 8.4%. 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).
In Iwuy, 1.9% of residents are immigrants, fewer than in 92% 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.
4.3% of residents are foreign nationals in the typical compared French town, against 1.4% in Iwuy. In the typical compared French town, immigrants come to 6.5%.
INSEE publishes no country of birth or ethnicity by commune in these tables, and the census doesn’t ask about religion.
In Iwuy, 38% of residents 15 and over are married, fewer than in 82% 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
Here, 26% of residents 15 and over are single. The share of married residents in the typical compared French town is 43%.
Below 79% of compared French towns: 22% 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
Set against 19% in the typical compared French town, 23% of adults out of school have no qualification in Iwuy. For graduates of higher education, the comparison in the typical compared French town is 30%.
Among 41 French towns of 3,375 to 3,435 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.
Ages run from 37.3 in Porcheville to 58.5 in Sainte-Marie-de-Ré.
Iwuy is younger 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 |
|---|---|---|---|---|
| Iwuy | 38.2 | 18% | 1.1% | 1.9% |
| Bouchain 4,113 · 3.5 mi | 46 | 26% | 1% | 2.2% |
| Avesnes-les-Aubert 3,562 · 3.7 mi | 41.5 | 22% | 0.7% | 0.8% |
| Escaudœuvres 3,171 · 3.8 mi | 46.2 | 26% | 1% | 4% |
| Haspres 2,626 · 4.5 mi | 41.4 | 20% | 0.2% | 1.1% |
| Neuville-sur-Escaut 2,901 · 4.7 mi | 38.3 | 18% | 0.4% | 2.1% |
| Rœulx 3,743 · 5.3 mi | 40.2 | 19% | 0.3% | 2.2% |
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 Iwuy
What is the population of Iwuy?
3,403 at INSEE’s 2023 census, 5% more than in 2012 (3,232).
How old are Iwuy’s residents?
The median age is 38.2, younger than 87% of compared French towns. 25% are under 18 and 18% 65 or older.
How many second homes are there in Iwuy?
17, with occasional dwellings: 1.1% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Iwuy?
INSEE counts 66 immigrants (born abroad, not French at birth), 1.9% of residents, and 48 foreign nationals (1.4%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Iwuy?
€22,640 a year per consumption unit in 2023 (median of compared French towns €25,970); 17.0% of residents live below the poverty line. 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.