Each edition grades its towns against each other only.
This town in Seine-Maritime, Normandy has a population of 381.
At under 1,000 residents, Illois is too small for the grades other French towns get. Just 14% of residents are 65 or older.
The one thing Illois does most differently from other towns.
The Culture ministry lists no building in Illois as a monument historique. That’s true of 25% of compared French towns too.
The nearest classé monument is Ancienne minoterie Lambotte, in Aumale, 5 mi away.
28% of its homes were built before 1919, against 7.4% in the median compared French town.
Explore the history →Nothing in Illois is on the monuments historiques list. These are the nearest classé monuments, within 15.5 mi.
Data highlights are ordered by what stands out in Illois.
Degrees are held by 19% of adults, lower than both Seine-Maritime’s towns (22%) and compared French towns (30%). The share aged 15 to 24 is 12%. Illois has a median age of 36.9 years.
48% women, 52% men
About 109 men for every 100 women. Median share of women: Seine-Maritime 52.8%, France 51.8%.
| Illois | Seine-Maritime median | France median | |
|---|---|---|---|
| Under 15 | 22% | 17% | 17% |
| 15–24 | 12% | 11% | 11% |
| 25–44 | 25% | 23% | 23% |
| 45–64 | 27% | 25% | 26% |
| 65+ | 14% | 23% | 22% |
| No diploma | 19% | 25% | 19% |
| CAP or BEP | 31% | 28% | 26% |
| Baccalauréat | 27% | 17% | 18% |
| Higher education | 19% | 22% | 30% |
INSEE, census 2023 · Seine-Maritime median and France median: the median of compared communes
On foot, by bike or by bus and train: that was how 5.1% of commuters travelled at the census. Illois has 100 jobs for 200 working residents, 0.5 per worker. The median disposable income was €24,510 a year per consumption unit, close to Seine-Maritime’s towns (€24,015) and below compared French towns (€25,970).
Source: INSEE, census 2023 (commuting, employment, jobs at place of work); INSEE, Filosofi 2023 · Licence Ouverte
Rents are the ministry’s estimates of advertised rents, not rents actually paid.
From July 2023 to June 2026, 9 homes were sold in Illois.
Source: Housing Ministry, Carte des loyers 2025; INSEE, Filosofi 2023 · Licence Ouverte
Wikidata has nobody with a French article born in Illois yet.
Commune in Seine-Maritime, Normandy
Illois is a commune of 381 people in the Communauté de communes interrégionale Aumale - Blangy-sur-Bresle. TownRatings compares communes, France’s local unit: each has its own mayor and its own statistics. Its area takes in the town and the countryside around it.
Built from INSEE’s 2026 official geography (COG) and IGN Admin Express boundaries
The nearest towns of 2,500 or more. The map uses IGN’s commune boundaries. See them on the map →
| Town | People | Miles | Overall | Cost | Safety | Health |
|---|---|---|---|---|---|---|
| Illois | 381 | — | — | — | — | — |
| Neufchâtel-en-Bray | 4,662 | 9.2 | C− | B+ | D | C |
| Forges-les-Eaux | 3,642 | 11 | C+ | B+ | C+ | C− |
| Blangy-sur-Bresle | 2,819 | 13 | C | A− | C | D |
| Grandvilliers Oise | 2,786 | 14 | C− | B | D | C− |
| Buchy | 2,815 | 17 | A− | A− | B | C− |
People: INSEE, census 2023. Miles: center to center.
Sources: INSEE, census 2023 (population, employment, commuting) · INSEE, Filosofi 2023 (income per consumption unit, poverty) · Housing Ministry, Carte des loyers 2025 · SSMSI, recorded crime by commune, 2023–2025 · Ministry of Education (DEPP), brevet and bac results and value-added indicators, 2025 · INSEE, deaths by commune of residence 2016–2025 and censuses 2012–2023; Eurostat, death rates by age (© European Union); INSEE, BPE 2025 (care homes, emergency and maternity units, GPs, pharmacies); DREES, APL 2024; INSEE, life expectancy by département 2025 (provisional) · INSEE, BPE 2025 and Filosofi 200 m grid (walking distances) · IGN Admin Express (boundaries) · TownRatings grades: our own summary of the data, ranking French towns against each other only, 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.