Freehold Township is a township in Monmouth County, New Jersey, United States. As of the 2010 United States Census, the township's population was 36,184, reflecting an increase of 4,647 (+14.7%) from the 31,537 counted in the 2000 Census, which had in turn increased by 6,827 (+27.6%) from the 24,710 counted in the 1990 Census.