Population
19'265↑1.1%

City · Solothurn
Olten is a town in the canton of Solothurn in Switzerland and capital of the district of the same name.
The rental vacancy rate is 2.06%, roughly the cantonal average (2.06 %). The municipal tax multiplier (Steuerfuss) is 108%, 7% below the cantonal average (117 %) — tax-favourable. Median taxable income is CHF 58'200, 6% below the Swiss median (CHF 61'929). Olten has 19'265 residents (2025).
Source: Swiss Federal Statistical Office (BFS).