Les Mesnuls

Identity

Les Mesnuls (INSEE 78398) is in Yvelines (78), part of CC Coeur d'Yvelines. Population 910 (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/78398-les-mesnuls

Vitality score

Vitality score 48.2/100 — Partly served (model fr-v0.2).

Confidence: high.

Better served than 84 % of the 14,915 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, a school and somewhere to eat or drink. ^[3,4]

1 × Bakery (boulangerie) (MICHA & MIE). ^[3,4]

1 × Grocery (épicerie / supérette) (L EPICERIE SERVICE). ^[3,4]

1 × Restaurant. ^[3,4]

1 × Café / bar (LE BISTROT DU JARDINIER). ^[4]

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

1 × Library (BIBLIOTHÈQUE DES MESNULS). ^[3]

Not counted, because the business register records them as closed: 2 × Bakery (boulangerie).

Not found in the commune: Butcher (boucherie), Supermarket, 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 852 (2012) → 910 (2023): 6.8 % over 10 years. ^[5,1]

Population 793 (1990) → 910 (2023): 14.8 % over 30 years. ^[6,1]

Dwellings (2023): 457, of which 15.8 % second homes and 6.6 % vacant. ^[7]

Access and surroundings

Bakery (Saint-Rémy-l'Honoré): 2.9 km to the east (straight line). ^[8]

Food shop (Les Mesnuls): 0.1 km to the south (straight line). ^[9]

GP (Montfort-l'Amaury): 2.8 km to the north-west (straight line). ^[10]

Pharmacy (Montfort-l'Amaury): 3 km to the north-west (straight line). ^[10]

Primary school (Les Mesnuls): 0 km to the north-east (straight line). ^[9]

Climate

An average of 13 days a year at or above 30 °C and 46 days at or below 0 °C, over 28 complete years in 1995–2024. ^[11]

Measured at the ST-LEGER_SAPC weather station, 8.8 km away at 176 m; the village itself is at 108 m. ^[11]

The village sits 68 m below 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. ^[11]

Muggy days — a dew point at or above 18 °C — average 4 days a summer. ^[11]

Humidity measured at ST-LEGER_SAPC, 8.8 km away at 176 m, over 18 summers. ^[11]

That station sits 68 m above the village, so each day's humidity was shifted by 4.22 °C per km before the muggy days were counted. ^[11]

An average of 743 mm of rain a year, spread over 125 days — about 5.9 mm on a day it rains. ^[11]

Rainfall measured at LE PERRAY, 7.5 km away at 174 m. Rainfall is not adjusted for altitude: unlike temperature it has no simple gradient to correct by. ^[11]

What property sold for

60 houses sold between 2021 and 2025, at a median of 549,046 € — 3,100 € per m² of built surface. ^[12]

The median across Yvelines is 3,657 € per m², so this commune sits below it. ^[12]

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 — 78398/2023
2. INSEE density grid 2026
3. INSEE BPE 2025
4. INSEE SIRENE 2026-09
5. INSEE census (RP) 2023 — 78398/2012
6. INSEE census (RP) 2023 — 78398/1990
7. INSEE census (RP) 2023 — 78398/logement/2023
8. INSEE BPE 2025 — 78576
9. INSEE BPE 2025 — 78398
10. INSEE BPE 2025 — 78420
11. Météo-France daily climatology 1995-2024
12. DVF (DGFiP property transactions) 2021-2025