Cromstrijen

Cromstrijen (; "Cromstrien" in local dialect) was a municipality on the Hoeksche Waard Island in the western Netherlands, in the province of South Holland. The municipality covers an area of of which is water. It was formed on 1 January 1984, when the municipalities on the Hoeksche Waard were merged into larger municipalities. On 1 January 2019 it was merged with the municipalities of Binnenmaas, Korendijk, Oud-Beijerland, and Strijen to form the municipality of Hoeksche Waard.
The municipality of Cromstrijen consists of the communities Klaaswaal and Numansdorp (townhall).
Its population was in .
Topography.
"Dutch topographic map of the municipality of Cromstrijen, June 2015"