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.
^New Jersey Postal History: The Post Offices and First Postmasters, 1776–1976, p. 51. (1977) Kay, John L. and Smith, Chester M., Jr., Lawrence, Massachusetts: Quarterman Publications, Inc. ISBN 0-88000-095-3