Population
526

City · Solothurn
Kienberg is a municipality in the district of Gösgen in the canton of Solothurn in Switzerland.
The rental vacancy rate is 1.57%, 24% below the cantonal average (2.06 %). The municipal tax multiplier (Steuerfuss) is 129%, 11% above the cantonal average (117 %). Median taxable income is CHF 57'500, 7% below the Swiss median (CHF 61'929). Kienberg has 526 residents (2025).
Source: Swiss Federal Statistical Office (BFS).