Léaz

Identity

Léaz (INSEE 01209) is in Ain (01), part of CA du Pays de Gex. Population 912 (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/01209-leaz

Vitality score

Vitality score 33.5/100 — Few services (model fr-v0.2).

Confidence: high.

Better served than 47 % of the 14,902 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 (LA MAISON TERANGA). ^[3,4]

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

1 × Library (BIBLIOTHÈQUE DE LÉAZ). ^[3]

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, Café / bar, 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 614 (2012) → 912 (2023): 48.5 % over 10 years. ^[5,1]

Population 461 (1990) → 912 (2023): 97.8 % over 30 years. ^[6,1]

Dwellings (2023): 405, of which 7.4 % second homes and 7.4 % vacant. ^[7]

Access and surroundings

Bakery (Clarafond-Arcine): 2.7 km to the south (straight line). ^[8]

Food shop (Vulbens): 3.8 km to the east (straight line). ^[9]

GP (Valserhône): 4.5 km to the west (straight line). ^[10]

Pharmacy (Valserhône): 4.5 km to the west (straight line). ^[10]

Primary school (Léaz): 0.2 km to the east (straight line). ^[11]

Climate

An average of 18 days a year at or above 30 °C and 98 days at or below 0 °C, over 27 complete years in 1995–2024. ^[12]

Measured at the BELLEGARDE weather station, 5.6 km away at 350 m; the village itself is at 492 m. ^[12]

The village sits 142 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 0 days a summer. ^[12]

Humidity measured at BELLEGARDE, 5.6 km away at 350 m, over 27 summers. ^[12]

That station sits 142 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 1,264 mm of rain a year, spread over 124 days — about 10.2 mm on a day it rains. ^[12]

Rainfall measured at BELLEGARDE MAN, 2.9 km away at 500 m. Rainfall is not adjusted for altitude: unlike temperature it has no simple gradient to correct by. ^[12]

Uncertainties

No specific uncertainties flagged.

References

1. INSEE census (RP) 2023 — 01209/2023
2. INSEE density grid 2026
3. INSEE BPE 2025
4. INSEE SIRENE 2026-09
5. INSEE census (RP) 2023 — 01209/2012
6. INSEE census (RP) 2023 — 01209/1990
7. INSEE census (RP) 2023 — 01209/logement/2023
8. INSEE BPE 2025 — 74077
9. INSEE BPE 2025 — 74314
10. INSEE BPE 2025 — 01033
11. INSEE BPE 2025 — 01209
12. Météo-France daily climatology 1995-2024