Cranford is a township in Union County, New Jersey, United States. As of the 2010 United States Census, the township's population was 22,625, reflecting an increase of 47 from the 22,578 counted in the 2000 Census, which had in turn declined by 55 from the 22,633 counted in the 1990 Census.New Jersey Monthly magazine ranked Cranford as its 34th best place to live in its 2010 rankings of the "Best Places To Live".