The Culture ministry lists 2 historic monuments in Montigny-l'Allier: 2 classé (France’s highest heritage protection) and 0 inscrit (the second level).
The oldest protected part dates from the 12th century; the first monument here was protected in 1920.
39% of its homes were built before 1919, against 7.4% in the median compared French town.
2003First protected: Ancienne commanderie de templiers de Moisy
Ancienne commanderie de templiers de Moisy: Photo: so leblanc · CC BY-SA 3.0
The data
Data highlights are ordered by what stands out in Montigny-l'Allier.
Who lives here
A town of families: 22% of people in Montigny-l'Allier are under 15, more than in both Aisne’s towns and compared French towns
38.7median age
Nearly a quarter of adults hold a degree. People 65 and over make up 17% of the town, lower than both Aisne’s towns (23%) and compared French towns (22%). The share aged 15 to 24 is 8.6%.
Montigny-l'AllierAisne medianFrance median
Ages · share of residents
9%
Under 1515–2425–4445–6465+
Highest diploma · residents 15 and older who have left education
No diploma21%
CAP or BEP32%
Baccalauréat18%
Higher education24%
Women and men · all residents
51% women, 49% men
WomenFrance medianMen
About an even split. Median share of women: Aisne 52.5%, France 51.8%.
Ministère de la Culture, Mérimée (Licence Ouverte 2.0) · INSEE, census 2023, homes by build period
Work & commute
Incomes in Montigny-l'Allier come to a median €25,380 a year per consumption unit, against €20,680 in Aisne’s towns and €25,970 in compared French towns
11%walk, cycle or take transit
12.2% of the labour force were unemployed, lower than Aisne’s towns (20.3%) yet higher than compared French towns (10.1%). On foot, by bike or by bus and train: that was how one in ten commuters travelled at the census. At the census, 2.3% of working residents in Montigny-l'Allier didn’t travel to work at all.
How working residents got to work · census 2023
Driving86%
Public transport9%
On foot2%
Motorbike or scooter1%
Bicycle0%
0
jobs based in Montigny-l'Allier, 0.1 per working resident
12.2%
unemployment rate, ages 15 to 64 in the labor force · median of compared French towns 10.1%
€25,380
median annual income per consumption unit, 2023 · median of compared French towns €25,970
Montigny-l'Allier is a commune of 273 people in the Communauté d'agglomération de la Région de Château-Thierry. TownRatings compares communes, France’s local unit: each has its own mayor and its own statistics. Its area takes in the town and the countryside around it.
Built from INSEE’s 2026 official geography (COG) and IGN Admin Express boundaries
Population
273 (INSEE, census 2023)
Intercommunality
Communauté d'agglomération de la Région de Château-Thierry
Département
Aisne (02)
Région
Hauts-de-France
Area
4 sq mi (10.4 km²)
INSEE code
02512
Montigny-l'Allier’s neighbors
The nearest towns of 2,500 or more. The map uses IGN’s commune boundaries. See them on the map →
Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.
