Data highlights are ordered by what stands out in Notre-Dame-de-la-Mer.
Who lives here
A typical mix of ages for France
43.5median age
The 15-to-24 age group: 10%, lower than Yvelines’ towns (12%) and near compared French towns (11%). 18% of residents have reached 65. Graduates make up 29% of adults.
Notre-Dame-de-la-MerYvelines medianFrance median
Ages · share of residents
10%
Under 1515–2425–4445–6465+
Highest diploma · residents 15 and older who have left education
No diploma15%
CAP or BEP33%
Baccalauréat16%
Higher education29%
Women and men · all residents
50% women, 50% men
WomenFrance medianMen
About an even split. Median share of women: Yvelines 51.6%, France 51.8%.
Ministère de la Culture, Mérimée (Licence Ouverte 2.0) · INSEE, census 2023, homes by build period
Work & commute
Incomes in Notre-Dame-de-la-Mer come to a median €29,300 a year per consumption unit, against €32,600 in Yvelines’ towns and €25,970 in compared French towns
17%walk, cycle or take transit
At the census, 16.9% of commuters got to work without a car. 50 jobs are based in Notre-Dame-de-la-Mer, for 350 working residents (0.2 per worker). Unemployment stood at 8.5%, near Yvelines’ towns (8.7%) and lower than compared French towns (10.1%).
How working residents got to work · census 2023
Driving77%
Public transport14%
Bicycle2%
Motorbike or scooter1%
On foot1%
50
jobs based in Notre-Dame-de-la-Mer, 0.2 per working resident
8.5%
unemployment rate, ages 15 to 64 in the labor force · median of compared French towns 10.1%
€29,300
median annual income per consumption unit, 2023 · median of compared French towns €25,970
Ministry of Education (DEPP) · brevet and bac 2025, value added (IVAC, IVAL) · Licence Ouverte
Housing
The estimated advertised rent in Notre-Dame-de-la-Mer is €13.06/m² a month, against €18.40/m² in Yvelines’ towns and €12.41/m² in compared French towns
€13.06/m²estimated apartment rent a month
Rents are the ministry’s estimates of advertised rents, not rents actually paid.
Sales in Notre-Dame-de-la-Mer from July 2023 to June 2026: 16 houses and apartments. Of the homes sold, 94% were houses. House rents are put at about €13.62/m² a month.
Estimated advertised apartment rent per m² a month
Notre-Dame-de-la-Mer€13.06/m²
Median of towns€12.41/m²
Yvelines median€18.40/m²
€13.06/m²
estimated advertised apartment rent a month, charges included (€10.95 to €15.58/m² a month)
€13.62/m²
estimated advertised house rent a month, charges included
Notre-Dame-de-la-Mer is a commune of 742 people in the Communauté de communes Les Portes de l'Ile de France. 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
Population
742 (INSEE, census 2023)
Intercommunality
Communauté de communes Les Portes de l'Ile de France
Département
Yvelines (78)
Région
Île-de-France
Area
3.5 sq mi (9 km²)
INSEE code
78320
Notre-Dame-de-la-Mer’s neighbors
The nearest towns of 2,500 or more. The map uses IGN’s commune boundaries. See them on the map →
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.