Mizpah is an unincorporated community and census-designated place located within the Mays Landing section of Hamilton Township, in Atlantic County, in the U.S. state of New Jersey. Mizpah was established as a Jewish colony in southern New Jersey and was planned out by a New York firm of cloak makers. It originally had a factory, 30 houses, and about 100 settlers. Uncle Dewey's is a popular barbecue stand located in Mizpah, along U.S. Route 40.