Saudoy

Identity

Saudoy (INSEE 51526) is in Marne (51), part of CC de Sézanne-Sud Ouest Marnais. Population 377 (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/51526-saudoy

Vitality score

Vitality score 27/100 — Few services (model fr-v0.2).

Confidence: high.

Better served than 60 % of the 18,049 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. ^[3,4]

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

Not found in the commune: Bakery (boulangerie), Butcher (boucherie), Grocery (épicerie / supérette), Supermarket, Café / bar, Nursery school (maternelle), 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 366 (2012) → 377 (2023): 3 % over 10 years. ^[5,1]

Population 328 (1990) → 377 (2023): 14.9 % over 30 years. ^[6,1]

Dwellings (2023): 221, of which 11.8 % second homes and 8.1 % vacant. ^[7]

Access and surroundings

Bakery (Barbonne-Fayel): 3.1 km to the south-west (straight line). ^[8]

Food shop (Chichey): 3.1 km to the east (straight line). ^[9]

GP (Sézanne): 3.9 km to the north (straight line). ^[10]

Pharmacy (Sézanne): 4.5 km to the north (straight line). ^[10]

Primary school (Saudoy): 0.4 km to the north-west (straight line). ^[11]

Climate

An average of 14 days a year at or above 30 °C and 45 days at or below 0 °C, over 30 complete years in 1995–2024. ^[12]

Measured at the ESTERNAY weather station, 12.3 km away at 185 m; the village itself is at 111 m. ^[12]

The village sits 74 m below the station, so each day's reading was shifted by 5.89 °C per km of altitude before the days were counted. Expect the result to be within about 0.68 °C. ^[12]

Muggy days — a dew point at or above 18 °C — average 1 day a summer. ^[12]

Humidity measured at ESTERNAY, 12.3 km away at 185 m, over 30 summers. ^[12]

That station sits 74 m above the village, so each day's humidity was shifted by 3.63 °C per km before the muggy days were counted. ^[12]

An average of 756 mm of rain a year, spread over 124 days — about 6.1 mm on a day it rains. ^[12]

Rainfall measured at SEZANNE, 4.2 km away at 120 m. Rainfall is not adjusted for altitude: unlike temperature it has no simple gradient to correct by. ^[12]

What property sold for

33 houses sold between 2021 and 2025, at a median of 109,990 € — 1,256 € per m² of built surface. ^[13]

The median across Marne is 1,798 € 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 — 51526/2023
2. INSEE density grid 2026
3. INSEE BPE 2025
4. INSEE SIRENE 2026-09
5. INSEE census (RP) 2023 — 51526/2012
6. INSEE census (RP) 2023 — 51526/1990
7. INSEE census (RP) 2023 — 51526/logement/2023
8. INSEE BPE 2025 — 51036
9. INSEE BPE 2025 — 51151
10. INSEE BPE 2025 — 51535
11. INSEE BPE 2025 — 51526
12. Météo-France daily climatology 1995-2024
13. DVF (DGFiP property transactions) 2021-2025