Ilpendam is a village in the province of North Holland, Netherlands. It is a part of the municipality of Waterland, and lies about 4 km south of Purmerend. It covers an area of 2.46 km2 and had 1,780

Cornelis de Graeff was a member of the family De Graeff, a prominent regent family from the Dutch Golden Age. He held the title 20th Free Lord of Purmerland and Ilpendam.