Clam

Identity

Clam (INSEE 17108) is in Charente-Maritime (17), part of CC de la Haute Saintonge. Population 418 (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/17108-clam

Vitality score

Vitality score 31.5/100 — Few services (model fr-v0.2).

Confidence: high.

Better served than 69 % of the 17,955 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 (LE VIEUX LOGIS). ^[3,4]

1 × Nursery school (maternelle) (ECOLE MATERNELLE DE CLAM). ^[3]

1 × Gym / sports hall (ECOLE MATERNELLE). ^[3]

1 × Hotel (LE VIEUX LOGIS). ^[3]

Not found in the commune: Bakery (boulangerie), Butcher (boucherie), Grocery (épicerie / supérette), Supermarket, Café / bar, Primary school (élémentaire), 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 406 (2012) → 418 (2023): 3 % over 10 years. ^[5,1]

Population 237 (1990) → 418 (2023): 76.4 % over 30 years. ^[6,1]

Dwellings (2023): 243, of which 8.6 % second homes and 10.3 % vacant. ^[7]

Access and surroundings

Bakery (Marignac): 3.8 km to the north-west (straight line). ^[8]

Food shop (Clion): 4.3 km to the west (straight line). ^[9]

GP (Jonzac): 4.9 km to the south (straight line). ^[10]

Pharmacy (Jonzac): 4.9 km to the south (straight line). ^[10]

Primary school (Clam): 0 km to the south-west (straight line). ^[11]

Climate

An average of 22 days a year at or above 30 °C and 29 days at or below 0 °C, over 30 complete years in 1995–2024. ^[12]

Measured at the ST GERMAIN DE LUSIGNAN weather station, 4.8 km away at 71 m; the village itself is at 62 m. ^[12]

Muggy days — a dew point at or above 18 °C — average 6 days a summer. ^[12]

Humidity measured at ST GERMAIN DE LUSIGNAN, 4.8 km away at 71 m, over 30 summers. ^[12]

An average of 898 mm of rain a year, spread over 123 days — about 7.3 mm on a day it rains. ^[12]

Rainfall measured at ST GERMAIN DE LUSIGNAN, 4.8 km away at 71 m. Rainfall is not adjusted for altitude: unlike temperature it has no simple gradient to correct by. ^[12]

What property sold for

22 houses sold between 2021 and 2025, at a median of 192,957 € — 1,159 € per m² of built surface. ^[13]

The median across Charente-Maritime is 2,339 € per m², so this commune sits below 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 — 17108/2023
2. INSEE density grid 2026
3. INSEE BPE 2025
4. INSEE SIRENE 2026-09
5. INSEE census (RP) 2023 — 17108/2012
6. INSEE census (RP) 2023 — 17108/1990
7. INSEE census (RP) 2023 — 17108/logement/2023
8. INSEE BPE 2025 — 17220
9. INSEE BPE 2025 — 17111
10. INSEE BPE 2025 — 17197
11. INSEE BPE 2025 — 17108
12. Météo-France daily climatology 1995-2024
13. DVF (DGFiP property transactions) 2021-2025