Dennisville is an unincorporated area in Dennis Township, in Cape May County, New Jersey, United States. It is part of the Ocean City Metropolitan Statistical Area. Its postal ZIP Code is 08214. Dennisville is on the south side of Dennis Creek and is the most important community within Dennis Township. The main transportation artery is New Jersey Route 47 (Delsea Drive). Dennisville was founded in 1726 by Anthony Ludlam. The first post office in the area was Dennis Creek, established September 7, 1802, with Jeremiah Johnson as first postmaster. The name was changed to Dennisville in 1854.