Ridderkerk is a town and municipality located in the western part of the Netherlands within the province of South Holland. It serves as a residential and administrative area characterized by its location in the Dutch countryside.
The municipality covers a total area of 25.26 km² (9.75 sq mi), with approximately 1.54 km² (0.59 sq mi) of that land area being covered by water. As of 2021, the population of Ridderkerk was recorded at 46,671 residents.