Karlsøya (Østfold)
Karlsøya is an island in the municipality of Sarpsborg in Østfold county, Norway. Until 1992 it was part of Skjeberg municipality. The island’s only link to the mainland is a bridge to the Ullerøy peninsula. Its coordinates are 59°08′47″N 11°08′22″E.
This page was last edited on 2 February 2026, at 22:18 (CET).