Each edition grades its towns against each other only.
The town has 602 residents and lies in Marne, Grand Est.
French towns are graded from 1,000 residents, which leaves Conflans-sur-Seine out for now.
The Culture ministry lists no building in Conflans-sur-Seine as a monument historique. That’s true of 25% of compared French towns too.
The nearest classé monument is Station de potiers gallo-romains, in La Villeneuve-au-Châtelot, 3.6 mi away.
24% 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 Conflans-sur-Seine.
People 65 and over make up a quarter of the town, about level with Marne’s towns (25%) and above compared French towns (22%). Half the people of Conflans-sur-Seine are older than 47.9. Those aged 15 to 24 account for 10% of residents.
51% women, 49% men
About 96 men for every 100 women. Median share of women: Marne 52.7%, France 51.8%.
| Conflans-sur-Seine | Marne median | France median | |
|---|---|---|---|
| Under 15 | 15% | 16% | 17% |
| 15–24 | 10% | 11% | 11% |
| 25–44 | 21% | 21% | 23% |
| 45–64 | 29% | 25% | 26% |
| 65+ | 25% | 25% | 22% |
| No diploma | 22% | 24% | 19% |
| CAP or BEP | 37% | 28% | 26% |
| Baccalauréat | 20% | 18% | 18% |
| Higher education | 15% | 24% | 30% |
INSEE, census 2023 · Marne median and France median: the median of compared communes
Per resident in work, Conflans-sur-Seine counts 0.3 jobs (50 jobs, 250 workers). The median disposable income was €24,180 a year per consumption unit, about level with Marne’s towns (€24,755) and below compared French towns (€25,970). No commute at all: 3.7% of working residents here at the census.
Source: INSEE, census 2023 (commuting, employment, jobs at place of work); INSEE, Filosofi 2023 · Licence Ouverte
Primary schools aren’t graded: France doesn’t publish their results by school.
The nearest general lycée is 3.2 mi away. A collège lies 3 mi away.
| School | Level | Candidates | Passed, 2025 |
|---|---|---|---|
| Collège le Noyer MarchandNearest collègeCollège | Collège | 120 | 88%+5 pts |
| Lycée professionnel Denis DiderotNearest lycéeVocational lycée | Vocational lycée | 86 | 85%+4 pts |
Ministry of Education (DEPP) · brevet and bac 2025, value added (IVAC, IVAL) · Licence Ouverte
Rents are the ministry’s estimates of advertised rents, not rents actually paid.
From July 2023 to June 2026, 25 homes were sold in Conflans-sur-Seine.
Source: Housing Ministry, Carte des loyers 2025; INSEE, Filosofi 2023 · Licence Ouverte
Nothing in Conflans-sur-Seine is on the monuments historiques list. These are the nearest classé monuments, within 15.5 mi.
One notable person was born in Conflans-sur-Seine.
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 |
|---|---|---|---|---|---|---|
| Conflans-sur-Seine | 602 | — | — | — | — | — |
| Romilly-sur-Seine Aube | 14,959 | 3.5 | C− | B+ | D | C− |
| Villenauxe-la-Grande Aube | 2,605 | 6.2 | C | A | C− | D− |
| Nogent-sur-Seine Aube | 5,537 | 8.8 | C− | B+ | C | C |
| Sézanne | 4,576 | 12 | C+ | A | C− | B− |
| Provins Seine-et-Marne | 11,632 | 17 | D | C | D | C |
People: INSEE, census 2023. Miles: center to center.
Commune in Marne, Grand Est
Conflans-sur-Seine is a commune of 602 people in the Communauté de communes de Sézanne-Sud Ouest Marnais. 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) · 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 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.