Saint-Cassien

Identity

Saint-Cassien (INSEE 38373) is in Isère (38), part of CA du Pays Voironnais. Population 1,154 (2023). ^[1]

INSEE density class: Rural à habitat dispersé (level 6). ^[2]

Data vintages: INSEE BPE 2025 · INSEE SIRENE 2026-09 · INSEE census (RP) 2023 · INSEE COG 2026 · INSEE density grid 2026.

Permanent link: https://vivantrural.com/en/fr/38373-saint-cassien

Vitality score

Vitality score 30.5/100 — Few services (model fr-v0.2).

Confidence: high.

Better served than 28 % of the 13,465 communes of a similar size.

Compare this with communes of a similar size. The score measures how well a place is served relative to its own size band, and larger communes score higher as a rule — so it reads meaningfully against another village, and misleadingly against a town.

Measured but not scored in this model: Market. See the methodology for why.

Services

A school and somewhere to eat or drink, but no food shop. ^[3,4]

1 × Restaurant (PIZZA REGAL). ^[3,4]

1 × Café / bar (LE SAINT CASSIEN). ^[4]

1 × Primary school (élémentaire) (ECOLE PRIMAIRE). ^[3]

1 × Library (BIBLIOTHÈQUE COMMUNAUTAIRE DE SAINT-CASSIEN). ^[3]

1 × Gym / sports hall (COMPLEXE SPORTIF). ^[3]

2 × Hairdresser (CLIN D'OEIL COIFFURE). ^[3,4]

Not counted, because the business register records them as closed: 1 × Restaurant.

Not found in the commune: Bakery (boulangerie), Butcher (boucherie), Grocery (épicerie / supérette), Supermarket, Nursery school (maternelle), GP (médecin généraliste), Pharmacy, Post office / agence postale. ^[3,4]

Market and village life

Market day: unknown — nothing found in the datasets or on the commune website.

Trajectory

Population 1,155 (2012) → 1,154 (2023): -0.1 % over 10 years. ^[5,1]

Population 861 (1990) → 1,154 (2023): 34 % over 30 years. ^[6,1]

Dwellings (2023): 546, of which 2.4 % second homes and 4.8 % vacant. ^[7]

Access and surroundings

Bakery (Voiron): 1.6 km to the east (straight line). ^[8]

Food shop (La Murette): 2.4 km to the north (straight line). ^[9]

GP (Voiron): 1.7 km to the south-east (straight line). ^[8]

Pharmacy (La Murette): 2.3 km to the north (straight line). ^[9]

Primary school (Saint-Cassien): 0 km to the south-east (straight line). ^[10]

Climate

An average of 34 days a year at or above 30 °C and 45 days at or below 0 °C, over 20 complete years in 1995–2024. ^[11]

Measured at the COUBLEVIE weather station, 3.5 km away at 300 m; the village itself is at 362 m. ^[11]

The village sits 62 m above the station, so each day's reading was shifted by 6.06 °C per km of altitude before the days were counted. Expect the result to be within about 0.68 °C. ^[11]

Muggy days — a dew point at or above 18 °C — average 2 days a summer. ^[11]

Humidity measured at COUBLEVIE, 3.5 km away at 300 m, over 19 summers. ^[11]

That station sits 62 m below the village, so each day's humidity was shifted by 3.69 °C per km before the muggy days were counted. ^[11]

An average of 1,122 mm of rain a year, spread over 113 days — about 9.9 mm on a day it rains. ^[11]

Rainfall measured at COUBLEVIE, 3.5 km away at 300 m. Rainfall is not adjusted for altitude: unlike temperature it has no simple gradient to correct by. ^[11]

Uncertainties

No specific uncertainties flagged.

References

1. INSEE census (RP) 2023 — 38373/2023
2. INSEE density grid 2026
3. INSEE BPE 2025
4. INSEE SIRENE 2026-09
5. INSEE census (RP) 2023 — 38373/2012
6. INSEE census (RP) 2023 — 38373/1990
7. INSEE census (RP) 2023 — 38373/logement/2023
8. INSEE BPE 2025 — 38563
9. INSEE BPE 2025 — 38270
10. INSEE BPE 2025 — 38373
11. Météo-France daily climatology 1995-2024