Gemeente Cromstrijen
Cromstrijen was a municipality in the Hoeksche Waard in the Dutch province of South Holland and consisted of the villages of Klaaswaal and Numansdorp. Since 1 January 2019, the former municipality of Cromstrijen, together with the municipalities of Korendijk, Strijen, Binnenmaas and Oud-Beijerland have been part of the municipality of Hoeksche Waard.