Welcome to the official website of the WARREN COUNTY HISTORICAL SOCIETY! (A non-profit organization)
The museum of the Warren County Historical Society, located at 313 Mansfield Street, stands within the historic district in the county seat of Belvidere, New Jersey.
The Federal brick townhouse was built circa 1848 and was purchased by the Historical Society from Clara Smith in August 1980. It officially opened as a museum in August 1984.
The museum is open Sundays 2 - 4 p.m.
Mailing Address:
Warren County Historical Society, Inc.
PO Box 313, Belvidere, NJ 07823
(908) 520-6243
Email: warrencountynjhistorical@yahoo.com
New Moon Paranormal Investigations invites you to a Ghost Hunt at the Warren County Historical Society. Ghost hunts will be held at the museum on October 30th and November 6th, 2026. All proceeds benefit the Warren County Historical Society.
The Warren County Historical Society, in participating in the annual Explore Warren History Trail, invites you to visit our historic museum for a free tour on Saturday, November 8th, from 10 a.m. to 4 p.m.
The museum of the Warren County Historical Society, located at 313 Mansfield Street, stands within the historic district of the county seat of Belvidere, New Jersey. Built as a federal brick townhouse circa 1848, the museum holds an eclectic collection of Warren County memorabilia and antiques.
Step back in time and experience the magic of a Victorian Christmas at the Warren County Historical Society Museum.
The walk-through will be hosted on the 38th annual Belvidere Victorian Day, September 12th, 2026, 12 p.m. to 3 p.m. Click the flyer to enlarge.
Special Message
We gratefully accept donations, not only of a pecuniary nature, but of any items, photographs, paperwork, etcetera of a historical nature.
To become a supporter of the WARREN COUNTY HISTORICAL SOCIETY (a non-profit organization) and help us preserve and care for our unique collection, you can make a tax-deductible donation.
We accept help from individuals as well as corporate entities. You may leave the donation in the donation box in the museum foyer or participate in our corporate sponsorship program.
Books, DVDs, Antique Maps, and More
Copies of this map detailing the Belvidere Historic District are for sale at the Museum. Each is printed on 8-1/2" x 11" high-quality, glossy photo paper and comes in a protective plastic sleeve. Copies are only $5.00 each and may be picked up at the Museum during normal hours of operation. If you wish copies be mailed to you, there shall be additional First Class postage and packing fees. Thank you!
