La Roche-sur-Grane

Identity

La Roche-sur-Grane (INSEE 26277) is in Drôme (26), part of CC du Val de Drôme en Biovallée. Population 189 (2023). ^[1]

INSEE density class: Rural à habitat très dispersé (level 7). ^[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/26277-la-roche-sur-grane

Vitality score

Vitality score 21.2/100 — Few services (model fr-v0.2).

Confidence: high.

Better served than 67 % of the 15,632 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, but no food shop and nowhere to eat or drink. ^[3,4]

1 × Primary school (élémentaire) (ECOLE ELEMENTAIRE PRIVEE LE COLIBRI ASS. LES AMANINS). ^[3]

1 × Campsite (LA MAGERIE). ^[3,4]

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

Market and village life

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

Trajectory

Population 165 (2012) → 189 (2023): 14.5 % over 10 years. ^[5,1]

Population 137 (1990) → 189 (2023): 38 % over 30 years. ^[6,1]

Dwellings (2023): 111, of which 20.7 % second homes and 3.6 % vacant. ^[7]

Access and surroundings

Bakery (Chabrillan): 4.8 km to the north (straight line). ^[8]

Food shop (Puy-Saint-Martin): 5.9 km to the south (straight line). ^[9]

GP (Grane): 5.8 km to the north (straight line). ^[10]

Pharmacy (Grane): 5.8 km to the north (straight line). ^[10]

Primary school (La Roche-sur-Grane): 1.3 km to the south-east (straight line). ^[11]

Climate

An average of 36 days a year at or above 30 °C and 55 days at or below 0 °C, over 24 complete years in 1995–2024. ^[12]

Measured at the DIVAJEU weather station, 6.4 km away at 175 m; the village itself is at 282 m. ^[12]

The village sits 107 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. ^[12]

Muggy days — a dew point at or above 18 °C — average 2 days a summer. ^[12]

Humidity measured at DIVAJEU, 6.4 km away at 175 m, over 14 summers. ^[12]

That station sits 107 m below the village, so each day's humidity was shifted by 3.69 °C per km before the muggy days were counted. ^[12]

An average of 906 mm of rain a year, spread over 88 days — about 10.3 mm on a day it rains. ^[12]

Rainfall measured at DIVAJEU, 6.4 km away at 175 m. Rainfall is not adjusted for altitude: unlike temperature it has no simple gradient to correct by. ^[12]

What property sold for

10 houses sold between 2021 and 2025, at a median of 184,200 € — 2,591 € per m² of built surface. ^[13]

The median across Drôme is 2,174 € per m², so this commune sits above it. ^[13]

These are recorded sale prices, not valuations or asking prices, and a median over five years spans five different markets. Built surface excludes land, which carries much of a rural property's value.

Uncertainties

No specific uncertainties flagged.

References

1. INSEE census (RP) 2023 — 26277/2023
2. INSEE density grid 2026
3. INSEE BPE 2025
4. INSEE SIRENE 2026-09
5. INSEE census (RP) 2023 — 26277/2012
6. INSEE census (RP) 2023 — 26277/1990
7. INSEE census (RP) 2023 — 26277/logement/2023
8. INSEE BPE 2025 — 26065
9. INSEE BPE 2025 — 26258
10. INSEE BPE 2025 — 26144
11. INSEE BPE 2025 — 26277
12. Météo-France daily climatology 1995-2024
13. DVF (DGFiP property transactions) 2021-2025