9100
HerisauThis postal code extends over 4 municipalities: postal delivery areas do not follow municipal borders.
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Location information
PLZ 9100- Postal code
- 9100
- Place name
- Herisau
- Municipality
- Herisau
- Canton
- Appenzell AusserrhodenAR
- Language
- German (Deutsch)
- Area
- 22 km²
Geographic coordinates
swisstopo- Latitude
- 47.385600°
- Longitude
- 9.279500°
- Municipality key (BFS)
- 3001
About this postal code
Postal code 9100 serves the area of Herisau in the canton of AR, Switzerland. The municipality is identified by the official key 3001. The primary language in this region is German.
Which locality is in which municipality?
swisstopo · 4Municipalities in this postal code area
swisstopo · 4Localities
swisstopo · 1Taxes in Herisau
ESTV · 2026Municipal tax multiplier410%
Cantonal tax multiplier330%
Tax multipliers apply per municipality — shown for Herisau.
Tax rank 14 of 20 in canton Appenzell AusserrhodenAccessibility (municipality of Herisau)
ARE · NPVMMajor centrePT 111 min · Car 67 min
Remotest municipalities →Electricity (municipality of Herisau)
ElCom · 2027 · BFESecond homes15.9 %
Health-insurance premiums
BAG · 2024Ø premium in canton Appenzell Ausserrhoden370 CHF/mo
Estimate Switzerland 2026465.3 CHF/mo
Premiums are set not per municipality but per canton and premium region. Shown is the average adult premium paid in canton Appenzell Ausserrhoden (2024, BAG) — it applies canton-wide, not to any single location.
Nearby postal codes
swisstopo- Where is postal code 9100?
- Postal code 9100 lies in 4 municipalities: Waldstatt, Herisau, Schwellbrunn, Gossau (canton AR). Postal codes are delivery areas and do not follow municipal borders.
- Which localities and municipalities does postal code 9100 comprise?
- Postal code 9100 covers 1 localities across 4 municipalities. A postal code is a delivery area and does not follow municipal borders — the pairing is spelled out row by row. Waldstatt, Herisau, Schwellbrunn & Gossau. Herisau: Waldstatt, Herisau, Schwellbrunn, Gossau.