Trosa

Trosa is a locality and the seat of Trosa Municipality in Södermanland County, Sweden. It lies on the Baltic coast in the traditional province of Södermanland, about 60 kilometers south of Stockholm, at the mouth of the Trosaån river and near the Stockholm archipelago.

The town originated as a fishing and trading village in the Middle Ages and grew into a small port during the early modern period. Its historic center is notable for wooden houses and narrow streets along the harbor, retaining a coastal-town character that attracts visitors.

The surrounding municipality encompasses coastal and rural landscapes, including forests, farmland and several small islands in the archipelago. The area offers nature experiences such as boating, hiking and birdlife, and the coastal environment shapes local life and recreation.

Administratively, Trosa Municipality is a self-governing unit within Stockholm County. It provides local services through a municipal council and executive, and it forms part of the larger Stockholm metropolitan region through commuting and economic ties.

Economy is driven by services, tourism, and small-scale industry, with many residents commuting to Stockholm or neighboring towns. The town is served by road connections and local bus services; rail access is available in nearby towns, with further connections accessible in the region.

Notable features include the historic waterfront and church area, a preserved ensemble of timber-framed houses, and the harbor that still serves recreational vessels. The town hosts local cultural events and maintains facilities that support residents and visitors.