
Postal code · Bern
Biel/Bienne is a bilingual city in the canton of Bern in Switzerland. With over 55,000 residents, it is the country's tenth-largest city by population. The Biel urban area has a population of around 100,000 inhabitants. Biel/Bienne is the capital of the Biel/Bienne administrative district. The city has been an industrial and watchmaking heart of Switzerland since the 19th century. With world-famous watch brands such as Rolex, Omega and Swatch based in Biel/Bienne, the city is one of the main centres of the Swiss watch industry and is also referred to as the "world capital of watchmaking".
The rental vacancy rate is 1.37%, 25% above the cantonal average (1.10 %). The municipal tax multiplier (Steuerfuss) is 163%, roughly the cantonal average (164 %) — tax-favourable. Median taxable income is CHF 53'800, 13% below the Swiss median (CHF 61'929). 2504 Biel/Bienne has 57'462 residents (2025).
Source: Swiss Federal Statistical Office (BFS).