Households here earn well (A−): 0.2 jobs per working resident; 5.7% unemployment. Its weakest is cost of living (D) — at the median price, a 70 m² home costs 10.7 times the median annual income per consumption unit in the intercommunality. It also trails on walkability (C−). Homes change hands at a median €4,209/m².
Figures: employment and commuting, INSEE census 2023 · prices, DVF · income per consumption unit (an income adjusted for household size), INSEE Filosofi · amenities, INSEE BPE 2025. Sonnaz has subject grades but no overall grade: French towns get one from 2,500 residents.
Hazard risk isn’t graded in France yet: national flood maps cover only some areas.
Each subject compares Sonnaz 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 Sonnaz.
HousingCost of living D
Estimated advertised rents run higher in Sonnaz than in Savoie’s towns or across compared French towns: €16.03/m² a month
Rents are the ministry’s estimates of advertised rents, not rents actually paid.
Houses made up just over two thirds of the homes sold; apartments the rest. 37 houses and apartments changed hands in Sonnaz from July 2023 to June 2026.
€4,209/m²median sale price
Median sale price per m² · Jul 2023 to Jun 2026
Sonnaz€4,209/m²
Median of towns€2,430/m²
Savoie median€3,542/m²
€16.03/m²
estimated advertised apartment rent a month, charges included (€12.55 to €20.47/m² a month)
10.7
times the median annual income per consumption unit in the intercommunality, for 70 m² at the median price
€14.97/m²
estimated advertised house rent a month, charges included
€27,440
median annual income per consumption unit, Communauté d'agglomération du Grand Chambéry
Source: DGFiP, DVF property sales (Etalab geolocated); Housing Ministry, Carte des loyers 2025; INSEE, Filosofi 2023 · Licence Ouverte
Work & commuteJobs & income A−
Incomes in Sonnaz run higher than in Savoie’s towns and across compared French towns: a median €32,540 a year per consumption unit
Of those in the labour force, 5.7% are unemployed. At the census, 7.7% went to work on foot, by bike or by public transport, below Savoie’s towns (19.2%) and compared French towns (13.4%) alike.
8%walk, cycle or take transit
How working residents got to work · census 2023
Driving90%
Public transport5%
Bicycle2%
Motorbike or scooter1%
On foot1%
200
jobs based in Sonnaz, 0.2 per working resident
5.7%
unemployment rate, ages 15 to 64 in the labor force · median of compared French towns 10.1%
€32,540
median annual income per consumption unit, 2023 · median of compared French towns €25,970
1%
worked without traveling (at or from home)
C−
Walkability: better than 18% of compared French towns
Source: INSEE, census 2023 (commuting, employment, jobs at place of work); INSEE, Filosofi 2023 · Licence Ouverte
Who lives here
Children make up 22% of Sonnaz, above Savoie’s towns and compared French towns
Young adults of 15 to 24 are nearly one in ten residents, below both Savoie’s towns (10%) and compared French towns (11%). Retirement age and beyond: 15% of residents are 65 or older. Graduates make up 46% of adults.
39.3median age
SonnazSavoie medianFrance median
Ages · share of residents
9%
Under 1515–2425–4445–6465+
Highest diploma · residents 15 and older who have left education
No diploma10%
CAP or BEP22%
Baccalauréat19%
Higher education46%
Women and men · all residents
49% women, 51% men
WomenFrance medianMen
About an even split. Median share of women: Savoie 51.5%, France 51.8%.
INSEE, census 2023 · Savoie median and France median: the median of compared communes
Schools
82.5% of candidates passed the brevet at the four collèges within 5 km, 6.7 points below the expected rate
Primary schools aren’t graded: France doesn’t publish their results by school.
A collège lies 1.9 mi away. Near Sonnaz, 94.0% of lycée candidates passed the bac, near both Savoie’s towns (94.3%) and compared French towns (92.9%). At the general lycée, 96% of 339 candidates passed the bac, a point below the expected rate.
96%passed the bac (general and technological)CSchool Grade
Ministry of Education (DEPP) · brevet and bac 2025, value added (IVAC, IVAL) · Licence Ouverte
History
Sonnaz has 1 historic monument, none of them classé
France has no History Grade yet: this card describes, it doesn’t grade.
The protected list starts in the 15th century. 7.8% of its homes were built before 1919, above both Savoie’s towns (5.9%) and compared French towns (7.4%).
Ministère de la Culture, Mérimée (Licence Ouverte 2.0) · INSEE, census 2023, homes by build period
HealthHealth C+
Sonnaz records 90 deaths for every 100 its ages predict, against 86 in Savoie’s towns and 88 in compared French towns
Care access and life expectancy are shown for context, not graded.
101 deaths in Sonnaz between 2016 and 2025, where France’s rates at each age predict 112: 10% below. Average lifespans in Savoie: 86.6 years for women, 81.2 for men (2025), against 85.9 and 80.3 nationally. The nearest emergency department to Sonnaz is Centre hospitalier Metropole Savoie site Chambery Mco, 3.7 mi away.
−10%deaths against expected, after care homesC+Health Grade
Deaths per 100 expected · 2016–2025
Raw90
Adjusted90
Median town88
Expected100
0
GPs in Sonnaz · 4.7 GP consultations a year per resident within reach (APL)
3.7 mi
to the nearest emergency department, Centre hospitalier Metropole Savoie site Chambery Mco
3.7 mi
to the nearest maternity unit, Centre hospitalier Metropole Savoie site Chambery Mco
86.6 · 81.2
years of life expectancy at birth, women · men, Savoie, 2025 (provisional) · France 85.9 · 80.3
People: INSEE, census 2023. Miles: center to center.
Questions about Sonnaz
Is Sonnaz safe?
Sonnaz has no Safety Grade: over a quarter of its index would rest on the département’s average. Recorded figures: an average of 2.8 recorded violent incidents and 10.9 recorded burglaries, vehicle thefts, thefts from vehicles and acts of criminal damage per 1,000 residents a year, 2023–2025. In 2025 police and gendarmerie recorded 13 burglaries and 5 acts of criminal damage.
Are schools in Sonnaz good?
They grade C, better than 25% of compared French towns. Primary schools aren’t graded: France doesn’t publish their results by school.
Is Sonnaz expensive to live in?
Incomes are higher than in most compared French towns, so Sonnaz grades D for cost of living.
About Sonnaz
Commune in Savoie, Auvergne-Rhône-Alpes
Sonnaz is a commune of 2,130 people in the Communauté d'agglomération du Grand Chambéry. 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.