Monthey
Municipality in the canton of Valais · FSO no. 6153
Parcel data from Nov 2026, statistics computed on 29 Oct 2026.
Open map at the Monthey centerThe parcel data lists 4’796 parcels in Monthey, covering 28.7 km². 62.7% of them have at least one registered building. The median parcel measures 1’065 m².
Key figures
- Parcels
- 4’796
- 0.8% of the canton
- Total area
- 28.7 km²
- 0.8% of the canton
- Median area
- 1’065 m²
- Canton: 518 m²
- Switzerland: 881 m²
- Built share
- 62.7%
- Canton: 26%
- Switzerland: 51%
- Median year built
- 1998
- Canton: 1980
- Switzerland: 1975
About Monthey
Monthey ranks 44th of 122 municipalities in the canton of Valais by number of parcels and holds 0.8% of the canton's parcels on 0.8% of its area. The median parcel in Monthey measures 1’065 m², larger than the canton median of 518 m². Monthey is more built-up than the canton as a whole: 62.7% of its parcels have a building, against 26% across the canton.
The zones with the most parcels are Aire forestière (14.7%), zone habitation faible densité A (R2) (14.6%) and zone habitation faible densité B (R1) (14.3%). In total, Monthey uses 53 zone designations.
According to the building register, Monthey has 4’660 buildings with 9’846 dwellings, 2.1 dwellings per building on average. Most residential buildings are single-family houses (62.5%). Non-residential buildings account for 41.5% of all buildings.
Built parcels most often have their newest building from 2011 to 2020 (29.1% of them), and 43% have one from 2001 or later. The median year built, 1998, is more recent than in the canton as a whole (1980).
Built and unbuilt parcels
Built: 3’007 (62.7%)
Unbuilt: 1’789 (37.3%)
Parcels by zone
| Zone | Parcels | Area | Built |
|---|---|---|---|
| Aire forestière | 703 | 11.12 km² | 11.1% |
| zone habitation faible densité A (R2) | 701 | 0.74 km² | 78.0% |
| zone habitation faible densité B (R1) | 684 | 0.81 km² | 76.9% |
| zone habitation faible densité de montagne (M1) | 432 | 0.56 km² | 75.0% |
| zone habitation faible densité (R3) | 260 | 0.24 km² | 90.8% |
| zone habitation forte densité A (R8) | 244 | 0.28 km² | 79.9% |
| zone centre | 217 | 0.10 km² | 76.5% |
| Zone agricole 2 | 169 | 2.01 km² | 43.2% |
| zone habitation moyenne densité C (R6) | 164 | 0.24 km² | 84.1% |
| zone industrielle (A1) | 116 | 1.23 km² | 69.0% |
| zone habitation forte densité B (R7) | 103 | 0.16 km² | 88.3% |
| zone agricole 1 | 91 | 1.20 km² | 19.8% |
| Other zones (41 labels) | 750 | 9.31 km² | 56.7% |
| No zone | 162 | 0.69 km² | 67.9% |
Zone names are the municipal designations. A canton lists each wording separately.
Building stock
The building register lists 4’660 buildings with 9’846 dwellings here; 1’663 of them are single-family houses.
- Buildings
- 4’660
- Dwellings
- 9’846
- Single-family houses
- 1’663
- Building volume
- 8.9 million m³
Buildings by category
Construction periods
Built parcels by construction period of their newest building
Maps and geodata for Monthey
geopool works as a GIS and geoportal for Monthey. Its parcel map shows the parcels of the official cadastral survey with their area, their zone from the municipal zoning plan and their buildings, on swisstopo maps. Building zones, the property map and the geodata of each parcel open on the geopool map. The ÖREB extract of a parcel (public-law restrictions on landownership) is in lookup.