Saint-Sylvestre

Identity

Saint-Sylvestre (INSEE 74254) is in Haute-Savoie (74), part of CA du Grand Annecy. Population 595 (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/74254-saint-sylvestre

Vitality score

Vitality score 35.9/100 — Few services (model fr-v0.2).

Confidence: high.

Better served than 70 % of the 17,131 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]

2 × Restaurant. ^[3,4]

1 × Primary school (élémentaire) (ECOLE ELEMENTAIRE PUBLIQUE ST SYLVESTRE). ^[3]

1 × Library (BIBLIOTHÈQUE DE SAINT-SYLVESTRE S/C MAIRIE). ^[3]

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 598 (2012) → 595 (2023): -0.5 % over 10 years. ^[5,1]

Population 378 (1990) → 595 (2023): 57.4 % over 30 years. ^[6,1]

Dwellings (2023): 308, of which 10.1 % second homes and 10.1 % vacant. ^[7]

Access and surroundings

Bakery (Viuz-la-Chiésaz): 2.3 km to the south-east (straight line). ^[8]

Food shop (Chapeiry): 1.6 km to the north-east (straight line). ^[9]

GP (Alby-sur-Chéran): 2 km to the south (straight line). ^[10]

Pharmacy (Alby-sur-Chéran): 2 km to the south (straight line). ^[10]

Primary school (Saint-Sylvestre): 0.1 km to the south (straight line). ^[11]

Climate

An average of 16 days a year at or above 30 °C and 105 days at or below 0 °C, over 29 complete years in 1995–2024. ^[12]

Measured at the BLOYE weather station, 6.1 km away at 375 m; the village itself is at 655 m. ^[12]

The village sits 280 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 MEYTHET, 11.6 km away at 455 m, over 29 summers. ^[12]

That station sits 200 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 1,203 mm of rain a year, spread over 118 days — about 10.2 mm on a day it rains. ^[12]

Rainfall measured at BLOYE, 6.1 km away at 375 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 — 74254/2023
2. INSEE density grid 2026
3. INSEE BPE 2025
4. INSEE SIRENE 2026-09
5. INSEE census (RP) 2023 — 74254/2012
6. INSEE census (RP) 2023 — 74254/1990
7. INSEE census (RP) 2023 — 74254/logement/2023
8. INSEE BPE 2025 — 74310
9. INSEE BPE 2025 — 74061
10. INSEE BPE 2025 — 74002
11. INSEE BPE 2025 — 74254
12. Météo-France daily climatology 1995-2024