Middle of the road on almost everything. Schools are its strong suit — brevet results at the expected rate. Overall, Derval earns a B−: better than 53% of compared French towns, and #63 of 93 in Loire-Atlantique. Buying 70 m² at the median €1,690/m² takes 5 years of the median income per consumption unit in the Communauté de communes Châteaubriant-Derval. Health is a weak point: after allowing for care homes, deaths from 2016 to 2025 were 6% below expected, against 12% below for the median of compared French towns. The rest of its grades are middling: B− for safety and B for jobs & income.
Figures: brevet and bac results, Ministry of Education · deaths, INSEE (by commune of residence, 2016–2025) · prices, DVF · income per consumption unit (an income adjusted for household size), INSEE Filosofi · recorded crime, SSMSI (Ministry of the Interior) · employment, INSEE census 2023.
Hazard risk isn’t graded in France yet: national flood maps cover only some areas. The overall grade uses the other six subjects.
What makes Derval stand out
The one thing Derval does most differently from other towns.
Each subject compares Derval 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.
Ministry of Education (DEPP) · brevet and bac 2025, value added (IVAC, IVAL) · Licence Ouverte
HealthHealth C
Fewer deaths than expected in Derval, 94 per 100, but more than in Loire-Atlantique’s towns or compared French towns
Care access and life expectancy are shown for context, not graded.
The nearest emergency department to Derval is Centre hospitalier Chateaubriant, 14.3 mi away. France’s death rates at each age would predict 369 deaths in the town from 2016 to 2025; there were 433, 17% more. Average lifespans in Loire-Atlantique: 86.2 years for women, 80.3 for men (2025), against 85.9 and 80.3 nationally. There are 5 general practitioners in the town.
−6%deaths against expected, after care homesCHealth Grade
Deaths per 100 expected · 2016–2025
Raw117
Adjusted94
Median town88
Expected100
5
GPs in Derval · 2.5 GP consultations a year per resident within reach (APL)
14.3 mi
to the nearest emergency department, Centre hospitalier Chateaubriant
14.3 mi
to the nearest maternity unit, Centre hospitalier Chateaubriant
86.2 · 80.3
years of life expectancy at birth, women · men, Loire-Atlantique, 2025 (provisional) · France 85.9 · 80.3
Money is tighter in Derval than in Loire-Atlantique’s towns or compared French towns: the median disposable income is €24,310 a year per consumption unit
1,650 jobs are based in Derval, for 1,600 working residents (1 per worker). 7.2% of commuters went to work on foot, by bike or by public transport at the census.
7%walk, cycle or take transit
How working residents got to work · census 2023
Driving84%
On foot4%
Motorbike or scooter2%
Bicycle2%
Public transport1%
1,650
jobs based in Derval, 1 per working resident
7.2%
unemployment rate, ages 15 to 64 in the labor force · median of compared French towns 10.1%
€24,310
median annual income per consumption unit, 2023 · median of compared French towns €25,970
6%
worked without traveling (at or from home)
C
Walkability: better than 35% of compared French towns
Source: INSEE, census 2023 (commuting, employment, jobs at place of work); INSEE, Filosofi 2023 · Licence Ouverte
History
Old homes shape Derval: 15% were built before 1919, more than in Loire-Atlantique’s towns or compared French towns
France has no History Grade yet: this card describes, it doesn’t grade.
The earliest of these monuments dates from the 14th century. Derval has 2 historic monuments on the Culture ministry’s list, none at the highest level (classé).
Ministère de la Culture, Mérimée (Licence Ouverte 2.0) · INSEE, census 2023, homes by build period
Who lives here
Students and young workers shape Derval: 13% are 15 to 24, above Loire-Atlantique’s towns and compared French towns
Graduates make up just over a quarter of adults. 19% are under 15, near Loire-Atlantique’s towns (19%) and higher than compared French towns (17%). Line up the people of Derval by age and the one in the middle is 41.6.
41.6median age
DervalLoire-Atlantique medianFrance median
Ages · share of residents
13%
Under 1515–2425–4445–6465+
Highest diploma · residents 15 and older who have left education
No diploma17%
CAP or BEP32%
Baccalauréat20%
Higher education26%
Women and men · all residents
49% women, 51% men
WomenFrance medianMen
About an even split. Median share of women: Loire-Atlantique 51.0%, France 51.8%.
INSEE, census 2023 · Loire-Atlantique median and France median: the median of compared communes
HousingCost of living B−
Buying in Derval costs less than in Loire-Atlantique’s towns or across compared French towns: the median sale is €1,690/m²
Rents are the ministry’s estimates of advertised rents, not rents actually paid.
The estimated advertised rent is €11.72/m² a month, below Loire-Atlantique’s towns (€12.75/m²) and compared French towns (€12.41/m²) alike. House rents are put at about €8.63/m² a month. Houses accounted for 98% of sales, apartments for the rest.
€1,690/m²median sale price
Median sale price per m² · Jul 2023 to Jun 2026
Derval€1,690/m²
Median of towns€2,430/m²
Loire-Atlantique median€2,844/m²
By type
Median per m²
Sales
Houses
€1,690/m²
105
€11.72/m²
estimated advertised apartment rent a month, charges included (€9.07 to €15.16/m² a month)
5
times the median annual income per consumption unit in the intercommunality, for 70 m² at the median price
€8.63/m²
estimated advertised house rent a month, charges included
€23,830
median annual income per consumption unit, Communauté de communes Châteaubriant-Derval
Source: DGFiP, DVF property sales (Etalab geolocated); Housing Ministry, Carte des loyers 2025; INSEE, Filosofi 2023 · Licence Ouverte
Safety
Per resident, Derval sees more crime than 51% of compared French towns
In 2025, 45 offenses were recorded in Derval. Violence against people ran at 8.4 per 1,000 residents a year and the graded property crimes at 13.1 (2023–2025 average). Police and gendarmerie recorded 45 offenses in the graded categories locally in 2025.
8.4recorded violent incidents per 1,000 residents a yearB−Safety Grade
Recorded by type · 2025
Burglary13
Family violence10
Criminal damage9
Vehicle theft7
Sexual violence6
Armed robbery0
Fraud23
Theft without violence13
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.
8.4
recorded violent incidents per 1,000 residents a year, 2023–2025 average
13.1
recorded burglaries, vehicle thefts, thefts from vehicles and acts of criminal damage per 1,000 residents a year, 2023–2025 average
45
offenses recorded in the graded categories in 2025
7.1%
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 · When other physical violence and theft from vehicles number five or fewer in a recent year, the figure is withheld, and the index uses the département’s average instead (7.1% of the index here). The count covers the offense categories the Safety Grade uses.
People: INSEE, census 2023. Miles: center to center.
Questions about Derval
Is Derval safe?
It grades B− for safety, #50 of 93 in Loire-Atlantique. In 2025 police and gendarmerie recorded 13 burglaries and 9 acts of criminal damage.
Are schools in Derval good?
They grade B+, better than 70% of compared French towns and #43 of 83 in Loire-Atlantique. Primary schools aren’t graded: France doesn’t publish their results by school.
Is Derval expensive to live in?
Incomes are lower than in most compared French towns too, so Derval grades B− for cost of living.
About Derval
Commune in Loire-Atlantique, Pays de la Loire
Derval is a commune of 3,601 people in the Communauté de communes Châteaubriant-Derval. 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
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.