Boswil
Municipality in the canton of Aargau · FSO no. 4228
Parcel data from Nov 2026, statistics computed on 29 Oct 2026.
Open map at the Boswil centerThe parcel data lists 1’538 parcels in Boswil, covering 11.8 km². 53.4% of them have at least one registered building. The median parcel measures 1’017 m².
Key figures
- Parcels
- 1’538
- 0.5% of the canton
- Total area
- 11.8 km²
- 0.8% of the canton
- Median area
- 1’017 m²
- Canton: 861 m²
- Switzerland: 881 m²
- Built share
- 53.4%
- Canton: 55.2%
- Switzerland: 51%
- Median year built
- 1988
- Canton: 1986
- Switzerland: 1975
About Boswil
Boswil ranks 75th of 196 municipalities in the canton of Aargau by number of parcels and holds 0.5% of the canton's parcels on 0.8% of its area. The median parcel in Boswil measures 1’017 m², larger than the canton median of 861 m². Boswil is about as built-up as the canton as a whole: 53.4% of its parcels have a building, against 55.2% across the canton.
The zones with the most parcels are Landwirtschaftszone (30.8%), Wohnzone 1 (18.7%) and Dorfzone (12.2%). In total, Boswil uses 29 zone designations.
According to the building register, Boswil has 1’434 buildings with 1’432 dwellings, 1.0 dwellings per building on average. Most residential buildings are single-family houses (70.6%). Non-residential buildings account for 47% of all buildings.
Built parcels most often have their newest building from 1981 to 2000 (30.7% of them), and 28.5% have one from 2001 or later. The median year built, 1988, is close to that of the canton as a whole (1986).
Built and unbuilt parcels
Built: 822 (53.4%)
Unbuilt: 716 (46.6%)
Parcels by zone
| Zone | Parcels | Area | Built |
|---|---|---|---|
| Landwirtschaftszone | 474 | 7.81 km² | 21.9% |
| Wohnzone 1 | 288 | 0.20 km² | 85.1% |
| Dorfzone | 188 | 0.13 km² | 73.9% |
| Wohn- und Arbeitszone 3 | 142 | 0.18 km² | 73.9% |
| Wohnzone 2 | 121 | 0.09 km² | 79.3% |
| Wald | 69 | 2.30 km² | 8.7% |
| Zentrumszone | 55 | 0.05 km² | 85.5% |
| Extensive Wiesen trockener Ausprägung | 30 | 0.20 km² | 23.3% |
| Arbeitszone 1 | 25 | 0.07 km² | 60.0% |
| Wohnzone 3 | 25 | 0.03 km² | 72.0% |
| Wohn- und Arbeitszone 2 | 23 | 0.02 km² | 78.3% |
| Zone für öffentliche Bauten und Anlagen | 20 | 0.07 km² | 50.0% |
| Other zones (17 labels) | 78 | 0.62 km² | 15.4% |
Zone names are the municipal designations. A canton lists each wording separately.
Building stock
The building register lists 1’434 buildings with 1’432 dwellings here; 505 of them are single-family houses.
- Buildings
- 1’434
- Dwellings
- 1’432
- Single-family houses
- 505
- Building volume
- 2.2 million m³
Buildings by category
Construction periods
Built parcels by construction period of their newest building
Maps and geodata for Boswil
geopool works as a GIS and geoportal for Boswil. 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.