Unterkulm
Municipality in the canton of Aargau · FSO no. 4146
Parcel data from Nov 2026, statistics computed on 29 Oct 2026.
Open map at the Unterkulm centerThe parcel data lists 1’702 parcels in Unterkulm, covering 8.9 km². 52.6% of them have at least one registered building. The median parcel measures 1’319 m².
Key figures
- Parcels
- 1’702
- 0.6% of the canton
- Total area
- 8.9 km²
- 0.6% of the canton
- Median area
- 1’319 m²
- Canton: 861 m²
- Switzerland: 881 m²
- Built share
- 52.6%
- Canton: 55.2%
- Switzerland: 51%
- Median year built
- 1975
- Canton: 1986
- Switzerland: 1975
About Unterkulm
Unterkulm ranks 66th of 196 municipalities in the canton of Aargau by number of parcels and holds 0.6% of the canton's parcels on 0.6% of its area. The median parcel in Unterkulm measures 1’319 m², larger than the canton median of 861 m². Unterkulm is about as built-up as the canton as a whole: 52.6% of its parcels have a building, against 55.2% across the canton.
The zones with the most parcels are Wohnzone 2 (35.9%), Landwirtschaftszone (33%) and Wald (14%). In total, Unterkulm uses 16 zone designations.
According to the building register, Unterkulm has 1’532 buildings with 1’772 dwellings, 1.2 dwellings per building on average. Most residential buildings are single-family houses (78.3%). Non-residential buildings account for 43.4% of all buildings.
Built parcels most often have their newest building from 1961 to 1980 (26.8% of them), and 20.2% have one from 2001 or later. The median year built, 1975, is earlier than in the canton as a whole (1986).
Built and unbuilt parcels
Built: 896 (52.6%)
Unbuilt: 806 (47.4%)
Parcels by zone
| Zone | Parcels | Area | Built |
|---|---|---|---|
| Wohnzone 2 | 611 | 0.48 km² | 87.2% |
| Landwirtschaftszone | 562 | 4.54 km² | 22.2% |
| Wald | 238 | 3.21 km² | 4.6% |
| Kernzone | 130 | 0.12 km² | 84.6% |
| Wohnzone 3 | 69 | 0.11 km² | 76.8% |
| Wohn- und Arbeitszone 3 | 26 | 0.07 km² | 92.3% |
| Arbeitszone II | 20 | 0.07 km² | 80.0% |
| Zone für öffentliche Bauten und Anlagen | 20 | 0.10 km² | 70.0% |
| Uferschutzzone | 10 | 0.01 km² | 50.0% |
| Arbeitszone I | 5 | 0.01 km² | 40.0% |
| Naturschutzzone / Magerwiese (trocken) | 3 | 0.02 km² | 0.0% |
| Verkehrsflächen innerhalb Bauzonen | 3 | 0.04 km² | 33.3% |
| Other zones (4 labels) | 5 | 0.10 km² | 40.0% |
Zone names are the municipal designations. A canton lists each wording separately.
Building stock
The building register lists 1’532 buildings with 1’772 dwellings here; 633 of them are single-family houses.
- Buildings
- 1’532
- Dwellings
- 1’772
- Single-family houses
- 633
- Building volume
- 1.9 million m³
Buildings by category
Construction periods
Built parcels by construction period of their newest building
Maps and geodata for Unterkulm
geopool works as a GIS and geoportal for Unterkulm. 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.