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Warren County, New Jersey Public Records

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Find the right office in Warren County. Court cases, deeds and parcels, sheriff and jail records, vital records and county filings, each linked to the office that keeps them.

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Most requested Warren County records

Every card below goes to the government office responsible for that record. Use the category buttons to narrow the list.

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Showing 11 official sources

Official

City records

Warren County Library System

Warren County Library System, with the catalog, branch information and the local history and reference collections it holds.

warrenlib.org
Open official site Warren County Library System
Official

State records

Warren County General Information

The Warren County government site gives the county's departments, the minutes of its governing board and the office to ask for each kind of county record.

warrencountynj.gov
Open official site Warren County General Information
Official

City records

Warren County Regional Chamber of Commerce

Warren County business and economic development page from the Belvidere administration building, pointing businesses to local and state economic development groups, downtown and commercial sites and the county tourism partnership.

warrencountynj.gov
Open official site Warren County Regional Chamber of Commerce

Everything else, organized

More official Warren County record sources

11 more Warren County sources not listed above.

More county sources

Local record guide

About public records in Warren County

County profile

Warren County at a glance

State
New Jersey
County seat
Belvidere
Population
109,632
Area
362 sq mi
Founded
1824
Cities and towns
17

Warren County offices and records

Sheriff & Law Enforcement. Warren County Sheriff's Office is responsible for maintaining law and order in Warren County. Notable divisions within the sheriff's office include the K-9 unit and the community outreach program, which engage with residents to foster a safer community environment.

Police Departments. Warren County is served by several law enforcement agencies, including Warren County Sheriff's Office and municipal police departments such as the Phillipsburg Police Department, Hackettstown Police Department, and Washington Township Police Department.

Law Enforcement & Arrests. Warren County Sheriff's Office, headquartered at 413 Second Street in Belvidere, New Jersey 07823, is the primary county law enforcement agency. The Sheriff's responsibilities include court security, civil process service, warrant execution, and operation of Warren County Correctional Facility located at 1200 State Route 94 South in Blairstown. Arrest records in Warren County are considered public records under the New Jersey Open Public Records Act (OPRA), 47:1A-1 et seq, and can be requested from either the arresting municipal police department or Warren County Prosecutor's Office at 413 Second Street, Belvidere, though certain records may be redacted for ongoing investigations or privacy concerns.

Arrest Records. Arrest records in Warren County are maintained by Warren County Sheriff's Office and local police departments.

Mugshots & Booking Photos. Mugshots in Warren County are taken and retained by Warren County Sheriff's Office during the booking process.

However, Warren County Tax Board, located at 413 Second Street, Suite 210, Belvidere (908-475-6256), provides oversight and coordination of assessments and maintains some county-wide tax information. 413 Second Street, Belvidere, NJ 07823 • Phone: (908-475-6336 413 Second Street, Belvidere, NJ 07823 • Phone: (908-475-6620

Abandoned mine records

Old mine workings in Warren County

Where the workings are, and the office that holds the mine maps.

From the old mine records

What is on record in Warren County

Old mine sites
170
Still producing
8
Worked underground, in the mine records
35
Main minerals
Iron; Limestone, General; dimension stone
Holes drawn on the old survey maps
51
Shafts and tunnels
7
What they are
gravel pit, open pit mine or quarry, adit, mine shaft
Maps surveyed
1954 to 1993
Records behind them
259 records for 229 sites, the rest are the same working written down more than once
Sources
USGS mineral file and USGS topographic mine features

Is an old working under a property here?

The mine records hold 178 named mine sites inside the county, 170 of them worked out or abandoned; the old survey maps add 51 holes drawn inside the county, 7 of them shafts or tunnels. The minerals the records name are Iron; Limestone, General; dimension stone.

A point in either file is a location, not a property line: the sheet shows the opening on the surface, not the rooms under it. The record that shows what runs under a parcel is the mine map. The OSMRE National Mine Map Repository holds scanned underground mine maps and answers requests for a named mine or an area.

Warren County: the boundary from the Census Bureau, and one dot for each old mine or hole on record inside it. The purple dots come off the old survey maps and the darkest of those are shafts and tunnels; the red, green and orange ones are mine records. Hover a dot for its name.
New Jersey mine map and abandoned mine records
Named workings recorded in Warren County (185 shown, 44 unnamed on the map)

Rows taken off the old survey maps open the USGS record of what sits at that spot, because no single feature on those maps has a page of its own. Rows from the mine records open their own USGS page.

Disclaimer: The mine information here is for general information only. Old mine records can be incomplete, outdated or wrong, and finding nothing here does not mean there is nothing there. Check with the mine map office named here before you rely on it, and have a qualified engineer look at any ground you are worried about. PublicRecordCenter.com assumes no responsibility or liability for any errors, omissions, or consequences arising from the use of this information.

Straight answers

Warren County public-records FAQs

Open only the answer you need.

Where can I find mugshots or booking photos in Warren County, New Jersey?

Booking photos are kept by the agency that made the arrest, such as the Warren County Sheriff's Office or a city police department in Warren County. Ask that agency for its record. P.L.2017, c.123 bars anyone from asking for or accepting payment in exchange for not publishing information that identifies a person as arrested, charged or convicted, including any photograph taken at the time of arrest.

How do I get a criminal background check in Warren County, New Jersey?

The New Jersey criminal history record comes from the New Jersey State Police, Criminal Information Unit. Fingerprint based New Jersey only Personal Record Request: schedule live scan fingerprinting at an IdentoGO site (IDEMIA) online or at 1-877-503-5981; the letter is downloaded at njportal.com/NJSP/prr. Fee: $45.73 fingerprinting service fee (includes the $15.73 vendor fee and state sales tax).

How can I look up sex offenders in Warren County, New Jersey?

Search the New Jersey Sex Offender Internet Registry (New Jersey State Police), or every state at once on the National Sex Offender Public Website run by the U.S. Department of Justice.

How do I register to vote in Warren County, New Jersey?

Register with the County Commissioner of Registration or Superintendent of Elections or through the New Jersey Division of Elections. You can also register online with the state online registration. The registration deadline is 21 days before the election (October 13 for the November 3, 2026 general election).

How do I look up property records in Warren County, New Jersey?

Deeds and other recorded land documents in Warren County are kept by the Warren County clerk. Property values are set by the municipal tax assessor, and tax bills come from the municipal tax collector. Source: official state page.

How do I get a birth or death certificate in Warren County, New Jersey?

Certified birth and death certificates for New Jersey come from the New Jersey Department of Health, Office of Vital Statistics and Registry. Local Vital Records Offices in New Jersey municipalities also issue copies; their fees and processing times vary. Online or by phone through VitalChek, the vendor the office names, by mail with a check or money order payable to Treasurer, State of New Jersey, or by walk in at 140 E. Front Street, Trenton. Fee: $25 for the search and one certified copy, $2 for each added copy of the same record ordered at the same time (state office; fees vary by municipality).

How do I find business license records in Warren County, New Jersey?

Business entity filings are searched with the New Jersey Department of the Treasury, Division of Revenue and Enterprise Services.

Same county

Cities, towns and neighboring counties

Use the city page when a record was created by a municipal police department or city office; use the county page for courts, deeds, vital records and jail custody.

PhillipsburgWashingtonBelvidereAlphaOxfordViennaStewartsvilleBlairstownJohnsonburgGreat MeadowsColumbiaHopeDelawareButtzvilleBroadwayChangewaterPort MurrayMonroe County, PennsylvaniaNorthampton County, PennsylvaniaHunterdon CountyMorris CountySussex CountyBucks County, Pennsylvania