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Canton of Aargau

Canton · 195 municipalities with parcel data

Parcel data from Jul 2025, statistics computed on 26 Sept 2026.

Gaps in the parcel data

One municipality is missing from the current parcel data: Menziken. Its page shows no parcel figures.

The parcel data lists 294’789 parcels in the canton of Aargau, covering 1’393 km². 55.4% of them have at least one registered building. The median parcel measures 863 m².

Key figures

Parcels
294’789
8.3% of Switzerland
Total area
1’393 km²

4.2% of Switzerland

Median area
863 m²

Switzerland: 870 m²

Built share
55.4%

Switzerland: 52%

Median year built
1986

Switzerland: 1976

About the canton of Aargau

The canton of Aargau ranks 3rd of the 22 cantons with largely complete parcel data by number of parcels and 7th by total parcel area. Of its 195 municipalities with parcel data, Wohlen (AG) (4’894), Aarau (4’831) and Zurzach (4’609) have the most parcels, which together hold 4.9% of the canton's parcels in the data.

The median parcel in the canton measures 863 m², about the same as the Swiss median of 870 m². The canton is about as built-up as Switzerland as a whole: 55.4% of its parcels have a building, against 52% nationwide. Among its municipalities with at least 500 parcels, Aarburg has the highest share of built parcels (81.5%) and Mandach the lowest (22.9%). Schmiedrued has the largest median parcel (2’725 m²) and Kaiseraugst the smallest (479 m²).

According to the building register, a building in the canton's municipalities with parcel data holds 1.3 dwellings on average, against 1.6 across Switzerland. Most residential buildings are single-family houses (72%, against 63.5% across Switzerland). Non-residential buildings account for 39.2% of all buildings.

Built parcels most often have their newest building from 1981 to 2000 (27.7% of them), and 26.5% have one from 2001 or later. The median year built, 1986, is more recent than in Switzerland as a whole (1976).

Built and unbuilt parcels

Built: 163’276 (55.4%)Unbuilt: 131’513 (44.6%)

Parcels by zone

Parcels by zone, the 12 largest zones first
ZoneParcels
Landwirtschaftszone69’302581.77 km²16.6%
Wohnzone 233’27823.06 km²85.3%
Wald27’277460.18 km²5.1%
Wohnzone W221’92115.33 km²84.9%
Dorfzone9’0187.54 km²80.1%
Wohnzone 36’1546.71 km²80.8%
Dorfkernzone5’5554.56 km²78.1%
Wohnzone 2 Geschosse4’9703.75 km²84.5%
Einfamilienhauszone4’8063.29 km²83.6%
Kernzone3’4123.13 km²79.1%
Wohnzone W33’2303.69 km²80.8%
Zone für öffentliche Bauten und Anlagen3’14516.03 km²59.4%
Other zones (1’223 labels)102’721264.27 km²69.6%

Zone names are the municipal designations. A canton lists each wording separately.

Building stock

The building register lists 267’085 buildings with 350’146 dwellings here; 108’087 of them are single-family houses.

Buildings
267’085
Dwellings
350’146
Single-family houses
108’087
Building volume
396.5 million m³

Buildings by category

  • Residential150’117
  • Mixed use5’081
  • Non-residential104’627
  • Other7’260

Construction periods

Built parcels by construction period of their newest building
  • Before 192011’239
  • 1920-19459’749
  • 1946-196013’535
  • 1961-198033’333
  • 1981-200045’231
  • 2001-201021’022
  • 2011-202016’708
  • 2021 and later5’534
  • Unknown year6’925

Maps and geodata for the canton of Aargau

geopool works as a GIS and geoportal for the canton of Aargau. 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.

Municipalities in the canton of Aargau

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