Warren County, NJ
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County Clerk's Office
Warren County Courthouse
413 Second Street
Belvidere, NJ 07823
908-475-6211
908-475-6208 (Fax)
Hours
Monday - Friday
8:00 a.m. to 4:30 p.m.
Naturalization and Immigration
- For historical Declaration of Intentions and Petitions for Naturalization records of Warren County, please email the request and as much pertinent information as possible to clerk@co.warren.nj.us. We will search our records.