Population
8'771↑1.7%
About Au SG
City · St. Gallen
Au is a municipality in the Wahlkreis (constituency) of Rheintal in the canton of St. Gallen in Switzerland.
Population
8'771
Tax multiplier
99%
Au SG in numbers
Federal data — BFS (STATPOP, STATENT, land use), ESTV, BAKOM, ARE.99%↑6.5%
Bottom quartile in canton
Median taxable income
CHF 49'150↑2.4%
Middle in canton
Median net income
CHF 54'575↑0.8%
77%
Cantonal tax multiplier
105%
2.98%↑9.6%
Top 10% in canton
- Settlement52%
- Agriculture37%
- Other7%
- Forest5%
Foreign residents
39.0%↑1.7%
Top 10% in canton
Median rent
CHF 19/ m²
+4% vs CH
Dwellings
4'195↑0.1%
Jobs (FTE)
3'772↑3.2%
92%
Housing market in Au SG
The rental vacancy rate is 2.98%, 117% above the cantonal average (1.37 %) — a comparatively relaxed market. The municipal tax multiplier (Steuerfuss) is 99%, 12% below the cantonal average (113 %) — tax-favourable. Median taxable income is CHF 57'000, 8% below the Swiss median (CHF 61'929). Au SG has 8'771 residents (2025).
Source: Swiss Federal Statistical Office (BFS).