Sigtuna Municipality (Sigtuna kommun) is a municipality in Stockholm County, Sweden. Its seat is located in the town of Märsta, approximately 37 km north of the Swedish capital, Stockholm. The municipality is a part of Metropolitan Stockholm. The municipality consists of several former local government units and was formed in 1971. It got its name from the small, but very old, City of Sigtuna, but the seat was placed in the larger modern town of Märsta. The three towns of the municipality are Märsta (pop. 23,000), Sigtuna (pop. 8,000) and Rosersberg (pop. 1,400), of which Märsta is the municipal seat and Sigtuna with its old and important history is a popular tourist destination. Sigtuna Municipality is also home to Stockholm Arlanda Airport, the main airport serving Stockholm, and the largest airport in Sweden.

Demography

Population development

2022 population by district

This is a demographic table based on Sigtuna Municipality's electoral districts in the 2022 Swedish general election sourced from SVT's election platform, in turn taken from SCB official statistics. There were 50,180 residents, including 33,030 Swedish citizens of voting age. 42.5% voted for the left coalition and 54.6% for the right coalition. Indicators are in percentage points except population totals and income.

Industry

In the municipality lies the largest workplace in Sweden, the Arlanda Airport, with 13,000 employees in 200 companies. As a result, Sigtuna is travelled through by 18,300,000 visitors yearly, and has the fourth most hotel stays, following to the commercial and regional centres Stockholm, Gothenburg and Malmö. Swedavia, the Swedish airport management company, has its head office on the airport property. Scandinavian Airlines previously had its head office on the airport property.

International relations

Twin towns – Sister cities

The municipality is twinned with: