Each edition grades its towns against each other only.
A town of 2,043 in Oise, Hauts-de-France.
Lagny-le-Sec has subject grades but no overall grade: French towns get one from 2,500 residents. Its weakest subject is cost of living (C−): at the median price, a 70 m² home costs 7.3 times the median annual income per consumption unit in the intercommunality. Its strongest is jobs & income (A+): 1.2 jobs per working resident; 6.4% unemployment.
Hazard risk isn’t graded in France yet: national flood maps cover only some areas.
The one thing Lagny-le-Sec does most differently from other towns.
Each subject compares Lagny-le-Sec with other French towns of 2,500 or more, ordered by how far its rank is from the middle. American and UK towns are graded separately.
How TownRatings grades French towns →
The Culture ministry lists no building in Lagny-le-Sec as a monument historique. That’s true of 25% of compared French towns too.
The nearest classé monument is Église Notre-Dame, in Ève, 1.9 mi away.
3.3% of its homes were built before 1919, against 7.4% in the median compared French town.
Explore the history →Data highlights are ordered by what stands out in Lagny-le-Sec.
Rents are the ministry’s estimates of advertised rents, not rents actually paid.
The median sale price was €2,941/m², above Oise’s towns (€2,311/m²) and compared French towns (€2,430/m²) alike. Of the homes sold, 96% were houses. The market in Lagny-le-Sec: 49 sales of houses and apartments between July 2023 and June 2026.
| By type | Median per m² | Sales |
|---|---|---|
| Houses | €2,864/m² | 47 |
Source: DGFiP, DVF property sales (Etalab geolocated); Housing Ministry, Carte des loyers 2025; INSEE, Filosofi 2023 · Licence Ouverte
Care access and life expectancy are shown for context, not graded.
There are 3 general practitioners in Lagny-le-Sec. The nearest emergency department to Lagny-le-Sec is Centre hospitalier de Meaux site Saint Faron, 10.3 mi away. 93 deaths here between 2016 and 2025, where France’s rates at each age predict 121: 23% below. Women in Oise live to 84.5 on average and men to 79.6 (2025), against 85.9 and 80.3 across France.
Source: INSEE, deaths by commune of residence 2016–2025 and censuses; Eurostat, death rates by age (© European Union); INSEE, BPE 2025; DREES, APL 2024; INSEE, life expectancy by département 2025 · Licence Ouverte · The adjustment for care homes is TownRatings’ own modeling, not an official figure. A less sure grade: it could be anywhere from C+ to A.
Degrees are held by 36% of adults. 16% of residents are 65 or over, lower than both Oise’s towns (19%) and compared French towns (22%). One measure of family life: 20% of residents are under 15.
50% women, 50% men
About an even split. Median share of women: Oise 51.7%, France 51.8%.
| Lagny-le-Sec | Oise median | France median | |
|---|---|---|---|
| Under 15 | 20% | 19% | 17% |
| 15–24 | 13% | 11% | 11% |
| 25–44 | 21% | 25% | 23% |
| 45–64 | 30% | 25% | 26% |
| 65+ | 16% | 19% | 22% |
| No diploma | 14% | 22% | 19% |
| CAP or BEP | 23% | 26% | 26% |
| Baccalauréat | 22% | 18% | 18% |
| Higher education | 36% | 26% | 30% |
INSEE, census 2023 · Oise median and France median: the median of compared communes
Unemployment stood at 6.4%, lower than both Oise’s towns (10.8%) and compared French towns (10.1%). 3.1% of Lagny-le-Sec’s working residents had no journey to work at the census.
Source: INSEE, census 2023 (commuting, employment, jobs at place of work); INSEE, Filosofi 2023 · Licence Ouverte
All told, Lagny-le-Sec had 14 recorded offenses in 2025. On average over 2023–2025, every 1,000 residents saw 2.8 violent offenses and 11.4 graded property crimes a year. More of the graded crimes here were criminal damage than anything else (2025).
Not in the gradeTheft without violence, drug use and fraud are shown for information but left out of the Safety Grade, which counts violence plus burglaries, vehicle thefts, thefts from vehicles and criminal damage per resident.
Source: SSMSI (Interior Ministry), recorded crime by commune, 2023–2025 · Licence Ouverte · For family violence, other physical violence, sexual violence, vehicle theft and theft from vehicles, this figure isn’t published when it’s small (five or fewer in at least one of the last three years); the index uses the département’s average instead, 33.2% of the index here. The count covers the offense categories the Safety Grade uses.
Nothing in Lagny-le-Sec is on the monuments historiques list. These are the nearest classé monuments, within 15.5 mi.
Wikidata has nobody with a French article born in Lagny-le-Sec yet.
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 |
|---|---|---|---|---|---|---|
| Lagny-le-Sec | 2,043 | — | — | C− | — | A− |
| Le Plessis-Belleville | 4,009 | 1.1 | C+ | D | C+ | C+ |
| Saint-Pathus Seine-et-Marne | 6,479 | 2.3 | B− | C− | A− | C− |
| Dammartin-en-Goële Seine-et-Marne | 11,907 | 3.4 | D | D− | C | C+ |
| Othis Seine-et-Marne | 6,717 | 3.5 | D | D− | B | C− |
| Saint-Mard Seine-et-Marne | 3,832 | 3.9 | D− | D− | C− | C− |
| Saint-Soupplets Seine-et-Marne | 3,542 | 4.3 | B− | D | B− | C |
People: INSEE, census 2023. Miles: center to center.
Lagny-le-Sec has no Safety Grade: over a quarter of its index would rest on the département’s average. In 2025 police and gendarmerie recorded 6 burglaries and 8 acts of criminal damage.
Incomes are higher than in most compared French towns, so Lagny-le-Sec grades C− for cost of living.
Commune in Oise, Hauts-de-France
Lagny-le-Sec is a commune of 2,043 people in the Communauté de communes du Pays de Valois. 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
Sources: INSEE, census 2023 (population, employment, commuting) · INSEE, Filosofi 2023 (income per consumption unit, poverty) · DGFiP, DVF property sales, July 2023 to June 2026 · 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 October 30, 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.