Aigremont

Identity

Aigremont (INSEE 78007) is in Yvelines (78), part of CA Saint Germain Boucles de Seine. Population 1,075 (2023). ^[1]

INSEE density class: Grands centres urbains (level 1). ^[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/78007-aigremont

Vitality score

Vitality score 19.5/100 — No daily shops (model fr-v0.2).

Confidence: high.

Better served than 5 % of the 13,902 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, but no food shop and nowhere to eat or drink. ^[3,4]

1 × Primary school (élémentaire) (ECOLE PRIMAIRE L'ECOLE DE LA FORET). ^[3]

1 × Library (BIBLIOTHÈQUE D'AIGREMONT). ^[3]

2 × Hairdresser (ALEXANDRE · CRISTIANE DOS PASSOS PEREIRA BARRETO). ^[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. ^[3,4]

Market and village life

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

Trajectory

Population 1,120 (2012) → 1,075 (2023): -4 % over 10 years. ^[5,1]

Population 914 (1990) → 1,075 (2023): 17.6 % over 30 years. ^[6,1]

Dwellings (2023): 419, of which 1 % second homes and 3.6 % vacant. ^[7]

Access and surroundings

Bakery (Chambourcy): 1.3 km to the north-east (straight line). ^[8]

Food shop (Chambourcy): 1.4 km to the north-east (straight line). ^[8]

GP (Chambourcy): 1.7 km to the east (straight line). ^[8]

Pharmacy (Chambourcy): 1.4 km to the north-east (straight line). ^[8]

Primary school (Aigremont): 0.2 km to the north (straight line). ^[9]

Climate

An average of 14 days a year at or above 30 °C and 63 days at or below 0 °C, over 19 complete years in 1995–2024. ^[10]

Measured at the CHAPET weather station, 9.7 km away at 42 m; the village itself is at 130 m. ^[10]

The village sits 88 m above the station, so each day's reading was shifted by 5.71 °C per km of altitude before the days were counted. Expect the result to be within about 0.68 °C. ^[10]

Muggy days — a dew point at or above 18 °C — average 1 day a summer. ^[10]

Humidity measured at CHAPET, 9.7 km away at 42 m, over 21 summers. ^[10]

That station sits 88 m below the village, so each day's humidity was shifted by 4.22 °C per km before the muggy days were counted. ^[10]

An average of 704 mm of rain a year, spread over 119 days — about 5.9 mm on a day it rains. ^[10]

Rainfall measured at ST-GERMAIN-EN-L, 3.4 km away at 85 m. Rainfall is not adjusted for altitude: unlike temperature it has no simple gradient to correct by. ^[10]

What property sold for

65 houses sold between 2021 and 2025, at a median of 670,000 € — 3,677 € per m² of built surface. ^[11]

The median across Yvelines is 3,657 € per m², so this commune sits about level with it. ^[11]

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 — 78007/2023
2. INSEE density grid 2026
3. INSEE BPE 2025
4. INSEE SIRENE 2026-09
5. INSEE census (RP) 2023 — 78007/2012
6. INSEE census (RP) 2023 — 78007/1990
7. INSEE census (RP) 2023 — 78007/logement/2023
8. INSEE BPE 2025 — 78133
9. INSEE BPE 2025 — 78007
10. Météo-France daily climatology 1995-2024
11. DVF (DGFiP property transactions) 2021-2025