Ersa

Identity

Ersa (INSEE 2B107) is in Haute-Corse (2B), part of CC du Cap Corse. Population 124 (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/2B107-ersa

Vitality score

Vitality score 25/100 — Few services (model fr-v0.2).

Confidence: medium (sources disagree on Restaurant).

Better served than 90 % of the 12,501 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 food shop and somewhere to eat or drink, but no school. ^[3,4]

1 × Bakery (boulangerie). ^[3,4]

3 × Restaurant (CHEZ MARLENE). ^[3,4]

1 × Post office / agence postale (LA POSTE). ^[3]

2 × Hotel (HOTEL PIETRA CINTA · HOTEL LE SAINT JEAN). ^[3,4]

Not found in the commune: Butcher (boucherie), Grocery (épicerie / supérette), Supermarket, Café / bar, Nursery school (maternelle), Primary school (élémentaire), GP (médecin généraliste), Pharmacy, Library. ^[3,4]

Market and village life

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

Trajectory

Population 152 (2012) → 124 (2023): -18.4 % over 10 years. ^[5,1]

Population 125 (1990) → 124 (2023): -0.8 % over 30 years. ^[6,1]

Dwellings (2023): 362, of which 76.2 % second homes and 2.5 % vacant. ^[7]

Access and surroundings

Bakery (Ersa): 1 km to the east (straight line). ^[8]

Food shop (Rogliano): 6.2 km to the east (straight line). ^[9]

GP (Centuri): 1.4 km to the south-west (straight line). ^[10]

Pharmacy (Rogliano): 6.6 km to the east (straight line). ^[9]

Primary school (Centuri): 2.5 km to the south-west (straight line). ^[10]

Climate

An average of 21 days a year at or above 30 °C and 0 days at or below 0 °C, over 28 complete years in 1995–2024. ^[11]

Measured at the CAP CORSE weather station, 3.4 km away at 72 m; the village itself is at 266 m. ^[11]

The village sits 194 m above the station, so each day's reading was shifted by 4.13 °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 24 days a summer. ^[11]

Humidity measured at CAP CORSE, 3.4 km away at 72 m, over 28 summers. ^[11]

That station sits 194 m below the village, so each day's humidity was shifted by 5.63 °C per km before the muggy days were counted. ^[11]

An average of 521 mm of rain a year, spread over 60 days — about 8.7 mm on a day it rains. ^[11]

Rainfall measured at CAP CORSE, 3.4 km away at 72 m. Rainfall is not adjusted for altitude: unlike temperature it has no simple gradient to correct by. ^[11]

Uncertainties

sources disagree on Restaurant

References

1. INSEE census (RP) 2023 — 2B107/2023
2. INSEE density grid 2026
3. INSEE BPE 2025
4. INSEE SIRENE 2026-09
5. INSEE census (RP) 2023 — 2B107/2012
6. INSEE census (RP) 2023 — 2B107/1990
7. INSEE census (RP) 2023 — 2B107/logement/2023
8. INSEE BPE 2025 — 2B107
9. INSEE BPE 2025 — 2B261
10. INSEE BPE 2025 — 2B086
11. Météo-France daily climatology 1995-2024