← Canton Appenzell Ausserrhoden overview
Ranking · Data 2025 · Source: BFS
The largest municipalities by area in canton Appenzell Ausserrhoden (2025)
National ranking →Urnäsch is the largest municipality by area in canton Appenzell Ausserrhoden: 48.2 km² (2025). Next come Herisau (25.2 km²) and Hundwil (24.1 km²). Source: swisstopo.
Ranking
swisstopo · 2025| Rank | Municipality | Area | Residents |
|---|---|---|---|
| 1 | Urnäsch | 48.2 km² | 2'382 |
| 2 | Herisau | 25.2 km² | 16'100 |
| 3 | Hundwil | 24.1 km² | 967 |
| 4 | Gais | 21.2 km² | 3'150 |
| 5 | Schwellbrunn | 17.4 km² | 1'543 |
| 6 | Teufen | 15.3 km² | 6'646 |
| 7 | Trogen | 10 km² | 1'905 |
| 8 | Stein | 9.4 km² | 1'492 |
| 9 | Speicher | 8.2 km² | 4'505 |
| 10 | Heiden | 7.5 km² | 4'413 |
| 11 | Walzenhausen | 7 km² | 2'111 |
| 12 | Wolfhalden | 6.9 km² | 1'913 |
| 13 | Waldstatt | 6.8 km² | 1'906 |
| 14 | Wald | 6.8 km² | 916 |
| 15 | Rehetobel | 6.7 km² | 1'710 |
| 16 | Bühler | 5.6 km² | 1'958 |
| 17 | Schönengrund | 5.2 km² | 561 |
| 18 | Reute | 5 km² | 717 |
| 19 | Grub | 4.2 km² | 986 |
| 20 | Lutzenberg | 2.3 km² | 1'340 |
swisstopo, retrieved 24.08.2026
How we measure this
swisstopoMunicipal area in square kilometres from swisstopo's official boundaries (swissBOUNDARIES3D), as of 2025. It covers the total area including forest, water and unproductive land.
Frequently asked questions
- Which municipality in canton Appenzell Ausserrhoden is the largest by area?
- Urnäsch is the largest municipality by area in canton Appenzell Ausserrhoden, at 48.2 km² (2025).
- Is water area included in the municipal area?
- Yes. The figure is swisstopo's official total area including lakes, forest and unproductive land — not just the built-up zone.