Official
County court
Mercer County Courts
Access county filings, cases and information.
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Most requested Mercer County records
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Official
Property records
Mercer County Real Estate Records
Search deeds, mortgages and related documents.
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Police & jail
Mercer County Sheriff's Department
The Mercer County Sheriff's Office serves court papers and warrants and provides courthouse security, and it holds the records of the process its deputies serve and the sheriff's sales.
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Vital records
Mercer County Death Records
Official death certificates from the county of Mercer.
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City records
Mercer County Directory
Index of Mercer's services and resources.
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Official
County court
Mercer County Civil Court
Information on divorces, other civil cases and probation matters.
Open official site Mercer County Civil Court
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Property records
Mercer County Board of Taxation
Review and obtain property taxes and more.
Open official site Mercer County Board of Taxation
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Police & jail
Mercer County Corrections Center
Search for inmates held in the county.
Open official site Mercer County Corrections Center
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Vital records
Mercer County Marriage License
Information to obtain marriage license in Mercer.
Open official site Mercer County Marriage License
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City records
Mercer County General Information
The Mercer 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.
Open official site Mercer County General Information
Official
City records
Mercer County Superintendent of Elections
The Mercer County Superintendent of Elections holds the county's voter roll, takes new registrations and address changes, and runs the elections held in the county.
Open official site Mercer County Superintendent of ElectionsNothing in this category on this page.
Everything else, organized
More official Mercer County record sources
11 more Mercer County sources not listed above.
More county sources
- Mercer County Most WantedSearch the Sheriff's warrants database.
- Mercer County Superintendent of SchoolsInformation for students, parents and teachers.
- Court FormsHow to request a court form.
- Mercer County Library SystemInformation on county libraries.
- Mercer County Park CommisionFind information on area parks and recreation.
- Trenton-Mercer AirportFind airport and airline information.
- Motion Calendar Search PageSuperior court calendar Motions.
- Mercer County Public RecordsSearch and order recorded documents in the county.
- Represent Yourself in Court (Pro Se)Self-Help resource center and court forms
- Mercer County Criminal InformationBegin search for criminal history records.
- Mercer County Sex Offender SearchLocate offenders in your area.
Local record guide
About public records in Mercer County
County profile
Mercer County at a glance
- State
- New Jersey
- County seat
- Trenton
- Population
- 387,340
- Area
- 226 sq mi
- Founded
- 1838
- Cities and towns
- 5
Mercer County offices and records
Sheriff & Law Enforcement. Mercer County Sheriff's Office is responsible for maintaining law and order in Mercer County.
Police Departments. Mercer County is served by several law enforcement agencies, including Mercer County Sheriff's Office and municipal police departments such as the Trenton Police Department, Princeton Police Department, and Hamilton Township Police Department.
Law Enforcement & Arrests. Law enforcement in Mercer County is provided by Mercer County Sheriff's Office, headquartered at 601 North Broad Street Extension, Trenton, NJ 08638, which handles court security, warrant service, civil process, and operation of Mercer County Correction Center. Arrest records in New Jersey are considered public records under the New Jersey Open Public Records Act (47:1A-1 et seq, commonly known as OPRA), and citizens may request arrest records from the individual municipal police departments where the arrest occurred or from the New Jersey State Police for state-level arrests. Mugshots and booking photos may be available through the arresting police department or Mercer County Prosecutor's Office at 209 South Broad Street, Trenton, NJ 08608, though New Jersey law limits the commercial use of mugshots.
Arrest Records. They are maintained by the arresting agency, primarily the County Sheriff's Office and municipal police departments.
Abandoned mine records
Old mine workings in Mercer County
Where the workings are, and the office that holds the mine maps.
From the old mine records
What is on record in Mercer County
- Old mine sites
- 17
- Sites with no status in the records
- 2
- Still producing
- 3
- Worked underground, in the mine records
- 2
- Main minerals
- crushed stone; dimension stone; Copper
- Holes drawn on the old survey maps
- 45
- Shafts and tunnels
- 0
- What they are
- open pit mine or quarry, gravel/borrow pit - undifferentiated, quarry
- Maps surveyed
- 1942 to 1995
- Sources
- USGS mineral file and USGS topographic mine features
Is an old working under a property here?
The mine records hold 22 named mine sites inside the county, 17 of them worked out or abandoned; the old survey maps add 45 holes drawn inside the county, 0 of them shafts or tunnels. The minerals the records name are crushed stone; dimension stone; Copper.
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.
New Jersey mine map and abandoned mine records
- New Jersey Geological and Water Survey, Abandoned Mines Map ArchiveThe survey's archive of historical maps of New Jersey's abandoned mines.
- New Jersey Geological and Water Survey, Mine Hazard and Resources ProgramThe survey program on abandoned mine openings and hazards in the Highlands iron district.
Named workings recorded in Mercer County (22 shown, 45 unnamed on the map)
- Hopewell Barite MineBarium-Barite | Past Producer
- Woosamonsa ProspectCopper | Occurrence
- Barnes MineIron | Unknown | Surface and underground
- American Legion QuarryStone, Crushed/Broken | Past Producer
- Crusher Road QuarryStone, Crushed/Broken | Past Producer | Surface
- Delaware Quarry & Construction CompanyStone, Crushed/Broken | Past Producer | Surface
- J.L. Burrough's QuarryStone, Crushed/Broken | Past Producer | Surface
- Mercer County Workhouse QuarryStone, Crushed/Broken | Past Producer | Surface
- Moores Station QuarryStone, Crushed/Broken | Producer | Surface
- Nj & Philadelphia Traction Co.Stone, Crushed/Broken | Past Producer
- Pennington QuarryStone, Crushed/Broken | Producer | Surface
- Quarry Swim Club TrapStone, Crushed/Broken | Past Producer
- Traprock Industries QuarryStone, Crushed/Broken | Producer
- Washington Road SandstoneStone, Crushed/Broken | Past Producer
- De FlescoStone, Dimension | Past Producer
- Margerum BrothersStone, Dimension | Past Producer
- Mccarthy Sons QuarryStone, Dimension | Past Producer | Surface
- Savage QuarryStone, Dimension | Past Producer | Surface
- Scudders QuarryStone, Dimension | Past Producer
- Zonolite Co/ Trenton, N.J.Vermiculite | Plant | A processing plant, not a working
- N L Industries/ Hightstown, N.J.Zirconium | Past Producer | A processing plant, not a working
- Lafayette ProspectProspect | Underground
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
Mercer County public-records FAQs
Open only the answer you need.
Where can I find mugshots or booking photos in Mercer County, New Jersey?
Booking photos are kept by the agency that made the arrest, such as the Mercer County Sheriff's Office or a city police department in Mercer 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 Mercer 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 Mercer 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 Mercer 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 Mercer County, New Jersey?
Deeds and other recorded land documents in Mercer County are kept by the Mercer 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 Mercer 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 Mercer 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.