Église Saint-Pierre: Photo: Jack ma · CC BY-SA 3.0
The data
Data highlights are ordered by what stands out in Mornac-sur-Seudre.
Who lives here
An older town: 35% of residents are 65 or over
54.9median age
12% are under 15, between Charente-Maritime’s towns (12%) and compared French towns (17%). Young adults of 15 to 24 are 7.8% of the population. Ages in Mornac-sur-Seudre split evenly at 54.9: half are older, half younger.
Mornac-sur-SeudreCharente-Maritime medianFrance median
Ages · share of residents
35%
Under 1515–2425–4445–6465+
Highest diploma · residents 15 and older who have left education
No diploma15%
CAP or BEP27%
Baccalauréat22%
Higher education29%
Women and men · all residents
53% women, 47% men
WomenFrance medianMen
About 90 men for every 100 women. Median share of women: Charente-Maritime 53.1%, France 51.8%. Women live longer than men, so towns with many older residents have more women.
Ministère de la Culture, Mérimée (Licence Ouverte 2.0) · INSEE, census 2023, homes by build period
Work & commute
Unemployment in Mornac-sur-Seudre, 8.3%, runs below Charente-Maritime’s towns and compared French towns
12%walk, cycle or take transit
Jobs located in Mornac-sur-Seudre: 100, for 350 residents in work (0.4 each). At the census, 2.5% of working residents in Mornac-sur-Seudre didn’t travel to work at all. Households’ median disposable income: €25,600 a year per consumption unit.
How working residents got to work · census 2023
Driving84%
On foot8%
Bicycle3%
Motorbike or scooter2%
Public transport1%
100
jobs based in Mornac-sur-Seudre, 0.4 per working resident
8.3%
unemployment rate, ages 15 to 64 in the labor force · median of compared French towns 10.1%
€25,600
median annual income per consumption unit, 2023 · median of compared French towns €25,970
Source: INSEE, census 2023 (commuting, employment, jobs at place of work); INSEE, Filosofi 2023 · Licence Ouverte
Housing
Estimated advertised rents run lower in Mornac-sur-Seudre than in Charente-Maritime’s towns or across compared French towns: €10.10/m² a month
€3,131/m²median sale price
Rents are the ministry’s estimates of advertised rents, not rents actually paid.
At the median, a home went for €3,131/m², lower than Charente-Maritime’s towns (€3,369/m²) yet higher than compared French towns (€2,430/m²). Between July 2023 and June 2026, buyers took 33 homes in Mornac-sur-Seudre. Houses made up 88% of the homes sold; apartments the rest.
Median sale price per m² · Jul 2023 to Jun 2026
Mornac-sur-Seudre€3,131/m²
Median of towns€2,430/m²
Charente-Maritime median€3,369/m²
€10.10/m²
estimated advertised apartment rent a month, charges included (€8.09 to €12.60/m² a month)
€10.04/m²
estimated advertised house rent a month, charges included
Mornac-sur-Seudre is a commune of 877 people in the Communauté d'agglomération Royan Atlantique. 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
877 (INSEE, census 2023)
Intercommunality
Communauté d'agglomération Royan Atlantique
Département
Charente-Maritime (17)
Région
Nouvelle-Aquitaine
Area
3.8 sq mi (9.7 km²)
INSEE code
17247
Mornac-sur-Seudre’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.
