Solothurn

Solothurn
Municipality
Clockwise from top: Aare river and St. Ursus cathedral (background); St. Ursus Cathedral; Simson fountain; Old town street and Zeitglockenturm; Biel gate tower (Bieltorturm)
Flag Coat of arms
Location of Solothurn
Solothurn Location within Switzerland Solothurn Location within Canton of Solothurn
Coordinates: 47°12′30″N 7°32′14″E
Country	Switzerland
Canton	Solothurn
District	Solothurn
Government
• Executive	Gemeinderat with 30 members
• Mayor	Stadtpräsidentin (list) Stefanie Ingold SPS/PSS (as of 2021)
• Parliament	none (Gemeindeversammlung)
Area
• Total	6.28 km2 (2.42 sq mi)
Elevation (Chapel of St Peter)	432 m (1,417 ft)
Population  (December 2020)
• Total	16,802
• Density	2,680/km2 (6,930/sq mi)
Demonym	German: Solothurner(in)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
Postal code	4500
SFOS number	2601
ISO 3166 code	CH-SO
Surrounded by	Bellach, Biberist, Feldbrunnen-Sankt Niklaus, Langendorf, Rüttenen, Zuchwil
Twin towns	Heilbronn (Germany), Kraków (Poland), Le Landeron (Switzerland)
Website	www.stadt-solothurn.ch

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Solothurn (/ˈsoʊlətʊərn, ˈzoʊ-/ SOH-lə-toorn, ZOH-; Swiss Standard German: [ˈzoːlotʊrn] ^ⓘ; French: Soleure [sɔlœʁ]; Italian: Soletta [soˈletta]; Romansh: Soloturn^ⓘ) is a city, a municipality, and the capital of the canton of Solothurn in Switzerland. It is located in the north-west of Switzerland on the banks of the Aare and on the foot of the Weissenstein Jura mountains.

The city is the only municipality of the district of the same name.

The city got its name from Salodurum, a Roman-era settlement. From 1530 to 1792 it was the seat of the French ambassador to Switzerland. The pedestrian-only old town was built between 1530 and 1792 and shows an impressive array of Baroque architecture, combining Italian Grandezza, French style, and Swiss ideas. The city has eighteen structures listed as heritage sites.