Morainvilliers

Identity

Morainvilliers (INSEE 78431) is in Yvelines (78), part of CU Grand Paris Seine et Oise. Population 3,120 (2023). ^[1]

INSEE density class: Ceintures urbaines (level 4). ^[2]

Data vintages: INSEE BPE 2025 · INSEE SIRENE 2026-09 · INSEE census (RP) 2023 · INSEE COG 2026 · INSEE density grid 2026 · Commune website 2026-10-24.

Permanent link: https://vivantrural.com/en/fr/78431-morainvilliers

Vitality score

Vitality score 34.4/100 — Few services (model fr-v0.2).

Confidence: high.

Better served than 10 % of the 6,893 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) (BOULANGERIE PATISSERIE DE LA GRANDE RUE). ^[3,4]

5 × Restaurant (COTE FRANCE · TCF · MCDONALD'S · GESTION VAL DE SEINE · ROOM SERVICE BURES MORAINVILLIERS). ^[3,4]

2 × Nursery school (maternelle) (ECOLE MATERNELLE PUBLIQUE BURES · ECOLE MATERNELLE PUBLIQUE YVES DUTEIL). ^[3]

2 × Primary school (élémentaire) (ECOLE ELEMENTAIRE SUZANNE DEUTSCH DE LA MEURTHE · ECOLE ELEMENTAIRE BURES). ^[3]

1 × Pharmacy (SELARL PHARMACIE DE MORAINVILLIERS). ^[3,4]

1 × Library (ASSOCIATION BIBLIOTHÈQUE MORAINVILLIERS BURES 2 BIBLIOTHÈQUES MORAINVILLIERS ET BURES). ^[3]

1 × Gym / sports hall (SALLE DE LOISIRS). ^[3]

2 × Fuel station (STATION SERVICE). ^[3,4]

Not counted, because the business register records them as closed: 1 × Fishmonger, 1 × Restaurant, 1 × Hairdresser.

Not found in the commune: Butcher (boucherie), Grocery (épicerie / supérette), Supermarket, Café / bar, GP (médecin généraliste), 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 2,547 (2012) → 3,120 (2023): 22.5 % over 10 years. ^[5,1]

Population 1,614 (1990) → 3,120 (2023): 93.3 % over 30 years. ^[6,1]

Dwellings (2023): 1,207, of which 3.1 % second homes and 3.9 % vacant. ^[7]

Access and surroundings

Bakery (Morainvilliers): 0.1 km to the east (straight line). ^[8]

Food shop (Les Alluets-le-Roi): 1.9 km to the south-west (straight line). ^[9]

GP (Ecquevilly): 2.5 km to the north (straight line). ^[10]

Pharmacy (Morainvilliers): 0.2 km to the east (straight line). ^[8]

Primary school (Morainvilliers): 0.3 km to the north-east (straight line). ^[8]

Climate

An average of 15 days a year at or above 30 °C and 61 days at or below 0 °C, over 19 complete years in 1995–2024. ^[11]

Measured at the CHAPET weather station, 4.1 km away at 42 m; the village itself is at 117 m. ^[11]

The village sits 75 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. ^[11]

Muggy days — a dew point at or above 18 °C — average 1 day a summer. ^[11]

Humidity measured at CHAPET, 4.1 km away at 42 m, over 21 summers. ^[11]

That station sits 75 m below 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 605 mm of rain a year, spread over 111 days — about 5.5 mm on a day it rains. ^[11]

Rainfall measured at CHAPET, 4.1 km away at 42 m. Rainfall is not adjusted for altitude: unlike temperature it has no simple gradient to correct by. ^[11]

Uncertainties

No specific uncertainties flagged.

References

1. INSEE census (RP) 2023 — 78431/2023
2. INSEE density grid 2026
3. INSEE BPE 2025
4. INSEE SIRENE 2026-09
5. INSEE census (RP) 2023 — 78431/2012
6. INSEE census (RP) 2023 — 78431/1990
7. INSEE census (RP) 2023 — 78431/logement/2023
8. INSEE BPE 2025 — 78431
9. INSEE BPE 2025 — 78010
10. INSEE BPE 2025 — 78206
11. Météo-France daily climatology 1995-2024