Warren County Property Search

Search free Warren County NJ property, land, and tax records through local government assessors, auditors, clerks, property appraisers, deeds recorders, treasurers, tax collectors, city halls, and town halls.


The Warren County Assessor is responsible for determining the value of property in order to determine Warren County property taxes. The Warren County Assessment Office collect data from on-site inspections, value assessments for construction or improvements, comparable sales, and calculations of depreciation. The Warren County Tax Assessor maintains current data on every parcel in the Warren County, which includes ownership information, maps of property lines, inventories of parcels and structures, and the value of all the property in the Warren County, NJ. The Warren County Assessor’s Office can answer questions regarding Warren County property tax appeals and assessments, Warren County property tax rates and payment due dates.

Allamuchy Township Assessor Allamuchy NJ 292 Alphano Road 07838 908-852-6514

Greenwich Township Assessor Stewartsville NJ 321 Greenwich Street 08886 908-859-0909

Hackettstown Assessor Hackettstown NJ 215 West Stiger Street 07840 908-852-6767

Mansfield Township Assessor Port Murray NJ 100 Port Murray Road 07865 908-689-2477

Washington Assessor Washington NJ 100 Belvidere Avenue 07882 908-689-3799


The Warren County Clerk files important documents and preserves municipal records in order to maintain an archive of Warren County property records that can be accessed by the public. The Clerk's Office is a valuable source of information on property in Warren County, New Jersey. The Warren County Clerk's Office contains documentation on real estate excise taxes, registered land, and property transactions, as well as land documents including Warren County deeds, mortgages, and liens on properties.

Allamuchy Township Clerk Great Meadows NJ Great Meadows Nj 07838 908-852-6765

Hope Township Clerk Blairstown NJ 407 Great Meadows Road 07825 908-459-5011

Warren County Clerk Belvidere NJ 413 2nd Street 07823 908-475-6211


The Warren County Recorders of Deeds maintain public records, particularly documents related to property and land records, and make them available for public access in Warren County, NJ. The Office of Recorder of Deeds in Warren County is a valuable source of information on property records The Recorder of Deeds maintains documents on land transactions within its jurisdictions, including Warren County deeds and titles, mortgages, property ownership records, surveys, and easements, as well as tax liens.

Warren County Recorder of Deeds Belvidere NJ 413 2nd Street 07823 908-475-6211


Warren County Town Halls and City Hall are the chief administrative offices that runs the town or city. The Town Hall or City Hall often maintains records related to the locality, including Warren County property taxes, property value assessments, and land transactions, as well as property sales and transfers in Warren County, New Jersey.

Hackettstown Town Hall Hackettstown NJ 215 West Stiger Street 07840 908-852-0688


The Warren County Treasurer and Tax Collector’s Office is responsible for the collection of Warren County property tax revenue. The Treasurer and Tax Collector maintains current Warren County property tax information including Warren County property ownership information, GIS Maps, tax maps, historical property tax rates, lists of sold parcels, and is also charged with the sale of properties due to a default on taxes in Warren County, New Jersey.

Alpha Tax Collector Phillipsburg NJ 1001 East Boulevard 08865 908-454-0088

Bethlehem Township Treasurer Asbury NJ 405 Mine Road 08802 908-735-4107

Blairstown Township Tax Collector Blairstown NJ 12 Mohican Road 07825 908-362-6663

Oxford Tax Collector Oxford NJ 11 Green Street 07863 908-453-3529

Warren County Board Of Taxation Belvidere NJ 202 Mansfield Street 07823 908-475-6071

Washington Tax Collector Washington NJ 100 Belvidere Avenue 07882 908-689-3601