FIPS: 34041 • Seat: Belvidere

Warren County Property Appraiser & Tax Assessor

Real property appraisal records, parcel search lookup, property tax rates, and assessment protest deadlines for Warren County, New Jersey.

Tax Rate 2.27% Effective Rate
Median Home $451k Census ACS Value
Annual Tax $10.238 Estimated Median
Assessment Ratio 100% Statutory Level

Warren County Assessor's Office Information

Physical Address

Warren County Appraisal & Assessment Office, Belvidere, NJ 34001

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Operating Hours

Monday - Friday: 8:00 AM - 4:30 PM (Local Time)

Closed on state & federal holidays.

Telephone / Contact

(609) 697-6071

Online Property Search Tool

Vital / Monmouth County Open Public Records

Warren County Property Tax Calculator

Estimated using Warren County's effective tax rate of 2.27% (Assessment ratio: 100%)

$
Quick Presets:
* Estimates do not account for local municipal surcharges, special district levies (MUD / ISD), or individual homestead exemption deductions.
Estimated Annual Tax
$10.238
per year
Monthly Escrow $853/mo
Assessed Value $451.000
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Appealing Your Warren County Assessment

Statutory Protest Deadline:

April 1 (or May 1 in towns undergoing municipal reassessment).

Under New Jersey property tax law, property owners in Warren County have the legal right to challenge an assessed valuation that exceeds fair market value, is unequally appraised compared to neighboring properties, or contains clerical errors.

Step 1: Informal Review

Contact the Warren County Assessor's Office to review your property record card, verify square footage, and present recent comparable sales (comps).

Step 2: Formal Hearing

If informal review does not resolve the valuation, file a written notice of appeal with the County Board of Taxation & Tax Court of New Jersey before the statutory deadline.

Save on Property Taxes

Was Your Warren County Home Over-Assessed This Year?

Studies show up to 30% to 60% of US residential properties are overvalued by automated municipal algorithms. Protesting your assessment before the statutory deadline can lower your tax bill by an average of $1,100/year.

⏰ Key Deadline: April 1 (or May 1 in towns undergoing municipal reassessment).

Warren County Homestead Exemptions & Tax Relief

Homeowners in Warren County who occupy their home as their permanent primary residence may qualify for property tax reductions under state and local homestead programs:

General Homestead Exemption:

ANCHOR program provides property tax relief up to $1,750 for homeowners making up to $250,000.

Seniors & Disabled Veterans:

Senior Freeze (Property Tax Reimbursement) program reimburses property tax increases for seniors 65+. 100% total exemption for wartime disabled veterans.

Public Records & Deeds Official Recording Partner

Need Deed, Lien, or Title Records for Warren County?

While the Property Appraiser values real estate for taxation, official legal property transfers, warranty deeds, mortgages, and marriage records in Warren County are maintained by the County Clerk & Recorder.

Frequently Asked Questions

Where is the Warren County Property Appraiser office located?

The official Warren County property appraisal and tax assessment office is located at Warren County Appraisal & Assessment Office, Belvidere, NJ 34001. Operating hours are typically Monday - Friday: 8:00 AM - 4:30 PM (Local Time). You can reach the customer service staff by phone at (609) 697-6071.

What is the property tax rate in Warren County, NJ?

The average effective property tax rate in Warren County is approximately 2.27%. For a home with the median county market value of $451.000, the estimated annual property tax is about $10.238 per year.

How do I search for a property or parcel in Warren County?

You can look up property record cards, assessed valuations, ownership history, and parcel boundary maps online through the official Warren County parcel search portal: https://wcponj.gov/assessor/parcel-search.

When is the deadline to appeal my property assessment in Warren County?

Property valuation protests and appeals in Warren County must be submitted by: April 1 (or May 1 in towns undergoing municipal reassessment). Appeals are formally reviewed and heard by the County Board of Taxation & Tax Court of New Jersey.

How does the Homestead Exemption work in Warren County?

ANCHOR program provides property tax relief up to $1,750 for homeowners making up to $250,000. Additional exemptions are available for senior citizens (65+) and disabled military veterans (Senior Freeze (Property Tax Reimbursement) program reimburses property tax increases for seniors 65+. 100% total exemption for wartime disabled veterans.).

Adjacent & Neighboring County Appraisers

County Overview

County Seat: Belvidere
Population (2023): 111.252
Land Area: 357 sq mi
Tax Assessor Ratio: 100%
State Agency: New Jersey Dept of Revenue
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