Middle Township is a township in Cape May County, New Jersey, United States. It is part of the Ocean City Metropolitan Statistical Area. As of the 2010 United States Census, the township's population was 18,911, reflecting an increase of 2,506 (+15.3%) from the 16,405 counted in the 2000 Census, which had in turn increased by 1,634 (+11.1%) from the 14,771 counted in the 1990 Census. The township's Cape May court House section is the county seat of Cape May County.