Oxelösund makes its character in contrasts that sit close together: the cranes and industrial shoreline of a deep-water port, the timber lanes of Gamla Oxelösund, and the open Baltic rocks and pine woods of Femöre. It is a working place as well as a seaside break. The municipal population was 11,962 on 31 December 2025; that figure covers the whole municipality, including its rural and island areas, not only the built-up town.
A harbour settlement, then an industrial town
The local written record needs careful reading. Oxelö is documented as a place-name in the fifteenth century, but that alone does not prove that a town stood here then. The older coast was shaped by sailing, fishing and pilotage, and the sheltered waters drew travellers to the site that is now Gamla Oxelösund. A sea inn, Oxelö Krog, appears in written records in the 1670s. Its surviving setting makes the district a useful place to understand the scale of the earlier community: a few homes and maritime services along a working shore, rather than a planned city.
The modern town grew with transport and heavy industry. The railway reached the coast from Bergslagen in 1877, helping a port expand; an ironworks was established in 1913, followed by the steelworks that developed in the 1960s. Oxelösund received town privileges on 1 January 1950, when it had just over 5,000 residents, and became a municipality in the 1971 reform. Today SSAB and the harbour remain major economic anchors, alongside engineering suppliers, transport, logistics, public services, shops and a visitor economy built around the coast. Industrial change is still part of the present: the steelworks and port are in transition, so the town is not a museum piece but a place where work, ships and neighbourhood life share the same horizon.
Old lanes and working-waterfront memory
In Gamla Oxelösund, follow the blue markers of Kulturstigen between houses and the water. The route is an easy way to read the old fishing and pilotage settlement through its buildings, boat sheds and shoreline. The Skärgårdsmuseet recreates domestic life from about a century ago, while Oxelö Krog has served food and coffee in a building with a much older inn history. The municipality completed a careful renovation of the krog in 2025. Summer activity can include open heritage rooms and local events, but dates and opening hours vary; check before travelling.
For a different landmark, the old brick water tower stands on a rocky rise between the centre and the steelworks. Built in 1899 and protected as a building monument in 1985, its octagonal silhouette recalls the town's rapid growth around the turn of the twentieth century. The visitor information point, library and cultural venue Koordinaten are at Järntorget, a practical place to orient yourself and ask about current exhibitions or local services.
Femöre: cliffs, trails and a Cold War fort
South of the centre, a small bridge crosses the Femöre Canal onto the peninsula. Much of Femöre and the sea around it belongs to the municipal nature reserve. The paths move through conifer woodland and past grazed meadows before opening onto bare granite, bathing steps and wide water. Sörmlandsleden has marked loops of 2 km and 6 km here; orange markings help with navigation. The reserve also suits birdwatching and shoreline fishing, and the fishing harbour and marina bring everyday boat life into the landscape. Pack for exposed weather and follow the reserve's posted rules: camping overnight is not allowed within the reserve.
At Femörehuvud, the lighthouse keeper's houses recall a seafaring landscape, and the first lighthouse there was lit in 1867. Beneath the rock is Femörefortet, a coastal-artillery installation kept in service from 1966 to 2003. The underground rooms are visited only on a guided tour; exterior guns can be seen without entering the fort. This is a particularly striking meeting of natural shoreline and modern defence history, but tour dates, access and booking requirements must be checked with the operator.
Getting around and extending the visit
Regional bus 715 links Nyköping and Oxelösund; the centre stop moved to Torggatan by the former railway station in December 2025. Nyköping is the nearest larger service and rail hub, while Stjärnholm offers a nearby estate setting and an outdoor sculpture park. Within Oxelösund, choose a short town walk, the coastal reserve loops, or the longer marked trails toward Brannäs wetland and Jogersö. There are cafés, restaurants, bathing places and guest-harbour facilities, though much of the coast's visitor life is seasonal. Confirm bus departures, guided tours, food service and museum opening times before setting out.