Trosa Municipality

Trosa Municipality
Trosa kommun
Trosa town hall
Coordinates: 58°54′N 17°33′E / 58.900°N 17.550°E / 58.900; 17.550
CountrySweden
CountySödermanland County
SeatTrosa
Area
  Total
664.76 km2 (256.67 sq mi)
  Land209.73 km2 (80.98 sq mi)
  Water455.03 km2 (175.69 sq mi)
 Area as of 1 January 2014.
Population
 (31 December 2024)
  Total
14,927
  Density22/km2 (58/sq mi)
Time zoneUTC+1 (CET)
  Summer (DST)UTC+2 (CEST)
ISO 3166 codeSE
ProvinceSödermanland
Municipal code0488
Websitewww.trosa.se

Trosa Municipality (Swedish: Trosa kommun) is a municipality in Södermanland County in southeast Sweden. The municipality consists of the localities of Vagnhärad, Västerljung, Stensund, Sund and the town of Trosa. The seat of the municipality is located in the town of Trosa.

The present municipality was created as recently as 1992, when Nyköping Municipality, which Trosa had been a part of since 1974, was split in three parts.

The municipality borders to Nyköping Municipality, Gnesta Municipality, and in the north to Södertälje Municipality in Stockholm County.