A lower share of flats than 99% of compared French towns, at 2.7%
5.1% of households are single parents; in the typical compared French town the figure is 10%. For Omissy, the census puts households in social housing at 1.8%. At 16%, the share of residents aged 15 to 24 is higher than in 97% of compared French towns. The town had 660 residents in 290 households at the 2023 census.
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 Omissy
Fewer residents than in 2012
Omissy had 748 residents at the 2012 census and 660 in 2023, down 12%: slower growth than in 98% of compared French towns. Population ↓
Written from INSEE’s census 2023 on this page, against compared French towns.
Omissy’s population moved −12% on 2012, less than in 98% 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
Here the change came as −5% to 2017, then −8% to 2023.
Half of Omissy is over 47.7, older than 73% 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
■ Omissy 47.7. The median compared French town: 44.
Nearly a quarter of residents are 65 or over; in the typical compared French town the figure is 22%.
Women and men · all residents
48% women, 52% men
About 109 men for every 100 women. Median share of women: Aisne 52.5%, France 51.8%.
Omissy sits above 64% of compared French towns for couples with children (28%)
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
The average household has 2.1 people. The benchmark for couples with children in the typical compared French town: 25%. On one-person households, Omissy sits lower than 63% of compared French towns: 33%.
Households without a car: 4.3%, a lower share than 93% of compared French towns
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
Second homes are rarer here than in 99% of compared French towns. Census figures put empty homes at 8.8% in Omissy. Across the comparison, 11% of households have no car in the typical compared French town.
The middle resident’s standard of living: €27,690 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 €27,690 a year per consumption unit and half below; the level is higher than in 68% of compared French towns.
Fewer households headed by a manual worker than 85% of compared French towns: 8.4%
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
By its share of households headed by a retired person (39%), Omissy is above 80% of compared French towns. Few places have so few households headed by a manager or professional: 8.9% here, fewer than in 53% of compared French towns. Against that, 14% of households are headed by a manual worker in the typical compared French town.
Each household is counted once, by the occupation of its reference person (usually the oldest working adult).
A lower share of immigrants than 96% of compared French towns, at 1.5%
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.
Where 4.3% of residents are foreign nationals in the typical compared French town, Omissy has 0.6%. 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.
Only 24% of residents 15 and over are single in Omissy
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
On the census count, 44% of residents 15 and over are married. Single residents make up 25% in the typical compared French town.
Adults with no qualification: 14%, a lower share than 77% of compared French towns
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: 33% here and 30% in the typical compared French town. In the typical compared French town, nearly a fifth of adults out of school have no qualification.
Of 41 French towns its size (660 to 2,582 people), the 15th oldest
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).
Omissy and its 6 nearest towns: 1 of them 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 |
|---|---|---|---|---|
| Omissy | 47.7 | 24% | 0% | 1.5% |
| Saint-Quentin 52,813 · 2.2 mi | 41.3 | 23% | 1.6% | 9% |
| Gauchy 5,183 · 3.8 mi | 47.7 | 24% | 0.4% | 4% |
| Fresnoy-le-Grand 2,890 · 6.9 mi | 44.1 | 23% | 1.2% | 2.7% |
| Bohain-en-Vermandois 5,605 · 9.9 mi | 41.1 | 21% | 0.8% | 4.9% |
| Ham 4,378 · 13.7 mi | 45.8 | 25% | 1% | 2.8% |
| Guise 4,490 · 14.3 mi | 47.9 | 27% | 1% | 1.8% |
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 Omissy
What is the population of Omissy?
660 at INSEE’s 2023 census, 12% fewer than in 2012 (748).
How old are Omissy’s residents?
The median age is 47.7, older than 73% of compared French towns. 16% are under 18 and 24% 65 or older.
How many second homes are there in Omissy?
0, with occasional dwellings: 0% of all homes, against 2.1% for the median compared French town.
How many immigrants live in Omissy?
INSEE counts 10 immigrants (born abroad, not French at birth), 1.5% of residents, and 4 foreign nationals (0.6%). The medians of compared French towns are 6.5% and 4.3%.
What is the median income in Omissy?
€27,690 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.