More weak spots than strong ones. At D overall, Batz-sur-Mer is better than just over a tenth of compared French towns and ranks #90 of 93 in Loire-Atlantique. Its lowest grade is for cost of living — at the median price, a 70 m² home costs 11.9 times the median annual income per consumption unit in the intercommunality. Health is weaker too — after allowing for care homes, deaths from 2016 to 2025 were 3% below expected, against 12% below for the median of compared French towns. Walking, cycling and public transport work well here: 93% of residents live within 800 m of a bakery, and 15% of working residents walk, cycle or take public transport to work.
Figures: amenities, INSEE BPE 2025 · commuting, INSEE census 2023 · prices, DVF · income per consumption unit (an income adjusted for household size), INSEE Filosofi · deaths, INSEE (by commune of residence, 2016–2025).
Hazard risk isn’t graded in France yet: national flood maps cover only some areas. The overall grade uses the other six subjects.
Each subject compares Batz-sur-Mer 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.
Data highlights are ordered by what stands out in Batz-sur-Mer.
Who lives here
Batz-sur-Mer skews older, with 42% of residents 65 or over, more than Loire-Atlantique’s towns or compared French towns
11% are under 15, below both Loire-Atlantique’s towns (19%) and compared French towns (17%). People aged 15 to 24 make up 6.3% of the town. At 60.3, the median resident of Batz-sur-Mer sits in the middle of the age range.
60.3median age
Batz-sur-MerLoire-Atlantique medianFrance median
Ages · share of residents
42%
Under 1515–2425–4445–6465+
Highest diploma · residents 15 and older who have left education
No diploma14%
CAP or BEP28%
Baccalauréat18%
Higher education33%
Women and men · all residents
53% women, 47% men
WomenFrance medianMen
About 88 men for every 100 women. Median share of women: Loire-Atlantique 51.0%, France 51.8%. Women live longer than men, so towns with many older residents have more women.
INSEE, census 2023 · Loire-Atlantique median and France median: the median of compared communes
HousingCost of living D
Homes in Batz-sur-Mer cost more than in Loire-Atlantique’s towns or across compared French towns, with a median sale of €4,818/m²
Rents are the ministry’s estimates of advertised rents, not rents actually paid.
The estimated advertised rent is €14.18/m² a month, higher than both Loire-Atlantique’s towns (€12.75/m²) and compared French towns (€12.41/m²). Batz-sur-Mer recorded 221 home sales from July 2023 to June 2026. Among the homes sold, 80% were houses.
€4,818/m²median sale price
Median sale price per m² · Jul 2023 to Jun 2026
Batz-sur-Mer€4,818/m²
Median of towns€2,430/m²
Loire-Atlantique median€2,844/m²
By type
Median per m²
Sales
Houses
€4,851/m²
176
Apartments
€4,793/m²
45
€14.18/m²
estimated advertised apartment rent a month, charges included (€11.24 to €17.88/m² a month)
11.9
times the median annual income per consumption unit in the intercommunality, for 70 m² at the median price
€12.12/m²
estimated advertised house rent a month, charges included
€28,430
median annual income per consumption unit, Communauté d'agglomération de la Presqu'île de Guérande Atlantique (Cap Atlantique)
Source: DGFiP, DVF property sales (Etalab geolocated); Housing Ministry, Carte des loyers 2025; INSEE, Filosofi 2023 · Licence Ouverte
HealthHealth C
Batz-sur-Mer’s death rate, adjusted for age and care homes, is higher than in 74% of compared French towns
Care access and life expectancy are shown for context, not graded.
Ages and care homes taken into account, deaths in Batz-sur-Mer come to 97 per 100 predicted. France’s death rates at each age would predict 440 deaths in the town from 2016 to 2025; there were 478, 9% more. The nearest emergency department to Batz-sur-Mer is Centre hospitalier de Saint Nazaire, 10.2 mi away. Women in Loire-Atlantique live to 86.2 on average and men to 80.3 (2025), against 85.9 and 80.3 across France.
−3%deaths against expected, after care homesCHealth Grade
Deaths per 100 expected · 2016–2025
Raw109
Adjusted97
Median town88
Expected100
0
GPs in Batz-sur-Mer · 3.4 GP consultations a year per resident within reach (APL)
10.2 mi
to the nearest emergency department, Centre hospitalier de Saint Nazaire
10.2 mi
to the nearest maternity unit, Centre hospitalier de Saint Nazaire
86.2 · 80.3
years of life expectancy at birth, women · men, Loire-Atlantique, 2025 (provisional) · France 85.9 · 80.3
Batz-sur-Mer has fewer jobs than residents in work: 0.6 for each
At the census, 15.5% went to work on foot, by bike or by public transport, above Loire-Atlantique’s towns (10.3%) and compared French towns (13.4%) alike. The unemployment rate here is 9.6%. The median disposable income is €27,730 a year per consumption unit.
15%walk, cycle or take transit
How working residents got to work · census 2023
Driving77%
On foot7%
Public transport5%
Bicycle4%
Motorbike or scooter2%
600
jobs based in Batz-sur-Mer, 0.6 per working resident
9.6%
unemployment rate, ages 15 to 64 in the labor force · median of compared French towns 10.1%
€27,730
median annual income per consumption unit, 2023 · median of compared French towns €25,970
6%
worked without traveling (at or from home)
B+
Walkability: better than 72% of compared French towns
Source: INSEE, census 2023 (commuting, employment, jobs at place of work); INSEE, Filosofi 2023 · Licence Ouverte
Safety
Crime per resident in Batz-sur-Mer is higher than in 72% of compared French towns
Of the graded crimes in Batz-sur-Mer, burglary came up most often (2025). Per 1,000 residents a year, there were 5.8 cases of violence against people and 21.1 graded property crimes (2023–2025 average). Its tally for 2025: 60 recorded offenses.
5.8recorded violent incidents per 1,000 residents a yearCSafety Grade
Recorded by type · 2025
Burglary27
Criminal damage14
Family violence13
Theft from vehicles6
Armed robbery0
Fraud21
Theft without violence10
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.
5.8
recorded violent incidents per 1,000 residents a year, 2023–2025 average
21.1
recorded burglaries, vehicle thefts, thefts from vehicles and acts of criminal damage per 1,000 residents a year, 2023–2025 average
60
offenses recorded in the graded categories in 2025
14.3%
of the index rests on the département’s average, used where small counts aren’t published
Source: SSMSI (Interior Ministry), recorded crime by commune, 2023–2025 · Licence Ouverte · For other physical violence, sexual violence and vehicle theft, the count isn’t published when it’s small (five or fewer in a year of the last three), so the index uses the département’s average, 14.3% of the index here. As that share tops 10%, this Safety Grade carries more doubt than most. The count covers the offense categories the Safety Grade uses.
History
4 historic monuments in Batz-sur-Mer, the oldest from Antiquity
France has no History Grade yet: this card describes, it doesn’t grade.
Among the classé monuments in Batz-sur-Mer is Citernes antiques de Trémonday. Protection here reaches back to Antiquity. Part of the town has been a protected historic area, a site patrimonial remarquable, since 2007. Churches, chapels and other religious buildings, 3 of the 4, make up the bulk.
People: INSEE, census 2023. Miles: center to center.
Questions about Batz-sur-Mer
Is Batz-sur-Mer safe?
It grades C for safety, #76 of 93 in Loire-Atlantique. In 2025 police and gendarmerie recorded 27 burglaries and 14 acts of criminal damage.
Is Batz-sur-Mer expensive to live in?
By type: houses €4,851/m² (176 sales), apartments €4,793/m² (45 sales). Incomes are higher than in most compared French towns, so Batz-sur-Mer grades D for cost of living.
About Batz-sur-Mer
Commune in Loire-Atlantique, Pays de la Loire
Batz-sur-Mer is a commune of 2,892 people in the Communauté d'agglomération de la Presqu'île de Guérande Atlantique (Cap 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
2,892 (INSEE, census 2023)
Intercommunality
Communauté d'agglomération de la Presqu'île de Guérande Atlantique (Cap Atlantique)
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.
