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New Jersey · 451 communities

Private Investigators in New Jersey by City

Choose your community to see which courts hear local cases, how New Jersey licenses investigators and how to request a match with a vetted, licensed investigator within our network who works that county.

Licensing

How New Jersey Licenses Private Investigators

New Jersey regulates private detectives under the Private Detective Act of 1939, N.J.S.A. 45:19-8 and following. The New Jersey State Police Private Detective Unit administers the Act. The unit screens applicants, keeps records of licensed agencies and their employees, conducts inspections and audits, and investigates complaints. A business that does private detective work for hire in New Jersey generally needs a license issued through the State Police.

For a client, the main check is the agency license. Individual employees are registered with the Private Detective Unit under that agency rather than licensed on their own. There is no simple public search on the unit's page, so the practical step is to get the license number and confirm it with the unit by phone or email before signing anything.

Courts

How New Jersey Courts Are Organized

New Jersey's main trial court is the Superior Court, a statewide court organized into 15 vicinages that cover the 21 counties. Its Law Division hears civil and criminal cases, and its Chancery Division hears equity cases, family matters in the Family Part and contested estates in the Probate Part. Each county Surrogate handles routine probate and guardianship filings. Municipal courts, run by a town or shared among towns, hear traffic, minor criminal and local ordinance cases. The Tax Court hears property tax appeals.

Communities

New Jersey Communities With a Private Investigator Page

Every New Jersey community over 3,000 residents, by population (U.S. Census Bureau, April 1, 2020 estimates base and July 1, 2024 estimates (Vintage 2024)).

CommunityCountyPopulation (2024 est.)
NewarkEssex County317,303
Jersey CityHudson County302,824
PatersonPassaic County160,463
Lakewood TownshipOcean County141,985
ElizabethUnion County140,413
Edison TownshipMiddlesex County110,002
Woodbridge TownshipMiddlesex County106,101
Toms River TownshipOcean County99,873
Hamilton TownshipMercer County93,911
TrentonMercer County91,193
CliftonPassaic County90,322
Cherry Hill TownshipCamden County78,988
Brick TownshipOcean County76,629
BayonneHudson County74,532
East OrangeEssex County71,850
CamdenCamden County71,749
PassaicPassaic County70,722
Old Bridge TownshipMiddlesex County70,506
Franklin TownshipSomerset County69,862
Middletown TownshipMonmouth County66,940
Union CityHudson County66,918
Gloucester TownshipCamden County66,896
Union TownshipUnion County63,171
Piscataway TownshipMiddlesex County62,733
VinelandCumberland County62,070
Irvington TownshipEssex County61,838
North Bergen TownshipHudson County61,668
Jackson TownshipOcean County60,704
HobokenHudson County59,149
New BrunswickMiddlesex County57,487
Perth AmboyMiddlesex County56,939
Parsippany-Troy Hills TownshipMorris County56,729
PlainfieldUnion County56,507
Bloomfield TownshipEssex County55,416
Howell TownshipMonmouth County54,397
Wayne TownshipPassaic County54,096
West New YorkHudson County52,975
East Brunswick TownshipMiddlesex County51,086
Monroe TownshipMiddlesex County50,157
Washington TownshipGloucester County49,756
West Orange TownshipEssex County49,211
Evesham TownshipBurlington County49,050
Egg Harbor TownshipAtlantic County48,538
South Brunswick TownshipMiddlesex County47,896
Mount Laurel TownshipBurlington County47,211
SayrevilleMiddlesex County47,165
Bridgewater TownshipSomerset County46,871
HackensackBergen County46,630
Manchester TownshipOcean County46,252
Hillsborough TownshipSomerset County45,421
LindenUnion County45,393
North Brunswick TownshipMiddlesex County45,323
Berkeley TownshipOcean County45,211
Teaneck TownshipBergen County42,578
Marlboro TownshipMonmouth County41,852
Montclair TownshipEssex County41,076
KearnyHudson County40,866
Manalapan TownshipMonmouth County40,762
Fort LeeBergen County40,566
Winslow TownshipCamden County40,458
Atlantic CityAtlantic County38,959
Belleville TownshipEssex County38,672
Galloway TownshipAtlantic County38,347
Monroe TownshipGloucester County38,043
Pennsauken TownshipCamden County37,665
Fair LawnBergen County36,489
Ewing TownshipMercer County35,858
Freehold TownshipMonmouth County35,800
City of Orange TownshipEssex County35,079
GarfieldBergen County33,530
Long BranchMonmouth County33,214
Deptford TownshipGloucester County32,570
Willingboro TownshipBurlington County32,511
Lawrence TownshipMercer County32,388
West Windsor TownshipMercer County32,241
Livingston TownshipEssex County32,160
WestfieldUnion County32,050
Voorhees TownshipCamden County31,473
PrincetonMercer County31,445
RahwayUnion County30,763
Stafford TownshipOcean County30,585
Nutley TownshipEssex County30,508
East Windsor TownshipMercer County30,436
EnglewoodBergen County30,221
Lacey TownshipOcean County30,041
Mount Olive TownshipMorris County29,499
BergenfieldBergen County28,921
Bernards TownshipSomerset County28,718
Hamilton TownshipAtlantic County28,669
Neptune TownshipMonmouth County28,210
Ocean TownshipMonmouth County27,992
MillvilleCumberland County27,838
BridgetonCumberland County27,722
Pemberton TownshipBurlington County27,333
Rockaway TownshipMorris County26,893
ParamusBergen County26,786
Randolph TownshipMorris County26,780
Wall TownshipMonmouth County26,722
RidgewoodBergen County26,701
LodiBergen County26,358
Cliffside ParkBergen County26,183
Maplewood TownshipEssex County26,127
CarteretMiddlesex County26,003
Barnegat TownshipOcean County25,871
Mahwah TownshipBergen County25,806
Medford TownshipBurlington County25,294
Raritan TownshipHunterdon County25,288
Scotch Plains TownshipUnion County25,223
South PlainfieldMiddlesex County25,062
West Milford TownshipPassaic County24,990
Plainsboro TownshipMiddlesex County24,558
Cranford TownshipUnion County24,513
Montville TownshipMorris County24,456
Burlington TownshipBurlington County24,392
GlassboroGloucester County24,322
Montgomery TownshipSomerset County24,254
Morris TownshipMorris County23,727
Roxbury TownshipMorris County23,397
SummitUnion County23,102
North PlainfieldSomerset County23,072
RoselleUnion County23,064
Vernon TownshipSussex County22,879
Millburn TownshipEssex County22,756
SecaucusHudson County22,710
Hillside TownshipUnion County22,690
West Deptford TownshipGloucester County22,653
Lyndhurst TownshipBergen County22,642
HarrisonHudson County22,182
LindenwoldCamden County21,919
Moorestown TownshipBurlington County21,796
Lower TownshipCape May County21,705
Elmwood ParkBergen County21,680
Little Egg Harbor TownshipOcean County21,587
PleasantvilleAtlantic County20,924
MorristownMorris County20,732
Jefferson TownshipMorris County20,705
Hazlet TownshipMonmouth County20,641
Palisades ParkBergen County20,520
Sparta TownshipSussex County20,362
Maple Shade TownshipBurlington County20,322
HawthornePassaic County20,006
Middle TownshipCape May County19,944
Point PleasantOcean County19,565
Tinton FallsMonmouth County19,435
Aberdeen TownshipMonmouth County19,376
RutherfordBergen County19,214
DoverMorris County18,909
South Orange Village TownshipEssex County18,736
Delran TownshipBurlington County18,717
DumontBergen County18,606
Washington TownshipMorris County18,364
Hopewell TownshipMercer County17,916
Weehawken TownshipHudson County17,877
Cinnaminson TownshipBurlington County17,724
Springfield TownshipUnion County17,630
Holmdel TownshipMonmouth County17,488
Denville TownshipMorris County17,376
Wyckoff TownshipBergen County17,366
New MilfordBergen County17,229
Warren TownshipSomerset County16,819
North ArlingtonBergen County16,694
Franklin TownshipGloucester County16,691
MadisonMorris County16,555
South RiverMiddlesex County16,392
Readington TownshipHunterdon County16,371
Clark TownshipUnion County16,277
Robbinsville TownshipMercer County15,928
Pequannock TownshipMorris County15,741
Branchburg TownshipSomerset County15,619
Haddon TownshipCamden County15,612
FairviewBergen County15,606
Mantua TownshipGloucester County15,565
Asbury ParkMonmouth County15,473
MetuchenMiddlesex County15,470
TenaflyBergen County15,455
PhillipsburgWarren County15,393
Highland ParkMiddlesex County15,386
EdgewaterBergen County15,116
Little Falls TownshipPassaic County15,099
Hanover TownshipMorris County15,093
HammontonAtlantic County15,036
RamseyBergen County15,003
MiddlesexMiddlesex County14,874
Verona TownshipEssex County14,779
HopatcongSussex County14,750
Woolwich TownshipGloucester County14,658
Florham ParkMorris County14,533
Saddle Brook TownshipBergen County14,516
Berkeley Heights TownshipUnion County14,510
SomervilleSomerset County14,428
Roselle ParkUnion County14,390
CollingswoodCamden County14,344
New ProvidenceUnion County13,957
Harrison TownshipGloucester County13,924
Cedar Grove TownshipEssex County13,766
EatontownMonmouth County13,582
Woodland ParkPassaic County13,477
Clinton TownshipHunterdon County13,405
Ridgefield ParkBergen County13,400
Florence TownshipBurlington County13,247
Lumberton TownshipBurlington County13,040
OaklandBergen County12,926
Pennsville TownshipSalem County12,855
Red BankMonmouth County12,830
Bordentown TownshipBurlington County12,732
HaddonfieldCamden County12,707
Bound BrookSomerset County12,643
East Greenwich TownshipGloucester County12,565
FreeholdMonmouth County12,530
Upper TownshipCape May County12,406
Glen RockBergen County12,346
Hasbrouck HeightsBergen County12,253
River EdgeBergen County12,235
WallingtonBergen County12,060
GuttenbergHudson County11,945
BellmawrCamden County11,846
RingwoodPassaic County11,762
RidgefieldBergen County11,666
Gloucester CityCamden County11,618
WestwoodBergen County11,434
WanaquePassaic County11,346
Chatham TownshipMorris County11,284
Franklin LakesBergen County11,251
BeachwoodOcean County11,242
East Hanover TownshipMorris County11,232
Ocean CityCape May County11,219
West Caldwell TownshipEssex County11,157
Pompton LakesPassaic County11,156
Little FerryBergen County11,137
Wantage TownshipSussex County11,087
TotowaPassaic County11,064
ManvilleSomerset County11,031
Lincoln ParkMorris County11,030
Pine HillCamden County10,894
East RutherfordBergen County10,624
Somers PointAtlantic County10,611
South AmboyMiddlesex County10,549
Waterford TownshipCamden County10,539
Southampton TownshipBurlington County10,458
River Vale TownshipBergen County10,407
Wood-RidgeBergen County10,397
Millstone TownshipMonmouth County10,378
WaldwickBergen County10,308
HillsdaleBergen County10,266
MaywoodBergen County10,221
HackettstownWarren County10,182
Mount Holly TownshipBurlington County10,172
BurlingtonBurlington County10,143
WoodburyGloucester County10,138
KinnelonMorris County10,108
ChathamMorris County10,062
Colts Neck TownshipMonmouth County9,961
BogotaBergen County9,799
MatawanMonmouth County9,739
KeansburgMonmouth County9,689
MontvaleBergen County9,663
Park RidgeBergen County9,634
Lopatcong TownshipWarren County9,502
LeoniaBergen County9,492
Washington TownshipBergen County9,437
Plumsted TownshipOcean County9,387
Ventnor CityAtlantic County9,372
Westampton TownshipBurlington County9,350
CaldwellEssex County9,326
CresskillBergen County9,311
AbseconAtlantic County9,249
Ocean TownshipOcean County9,242
Edgewater Park TownshipBurlington County9,196
Mansfield TownshipBurlington County9,091
HaledonPassaic County9,063
Chesterfield TownshipBurlington County9,022
ClaytonGloucester County9,016
Pittsgrove TownshipSalem County8,972
PitmanGloucester County8,943
BoontonMorris County8,894
North HaledonPassaic County8,854
AudubonCamden County8,801
ClosterBergen County8,730
Upper Saddle RiverBergen County8,696
Carneys Point TownshipSalem County8,693
Long Hill TownshipMorris County8,692
West Long BranchMonmouth County8,604
RaritanSomerset County8,584
KenilworthUnion County8,527
NorthfieldAtlantic County8,527
Hardyston TownshipSussex County8,472
NewtonSussex County8,435
RunnemedeCamden County8,425
DunellenMiddlesex County8,411
Bedminster TownshipSomerset County8,356
OradellBergen County8,344
SpotswoodMiddlesex County8,306
Byram TownshipSussex County8,217
Glen RidgeEssex County8,204
Fairfield TownshipEssex County8,204
ButlerMorris County8,196
Riverside TownshipBurlington County8,146
North Hanover TownshipBurlington County8,102
BernardsvilleSomerset County8,020
Upper Deerfield TownshipCumberland County7,978
FanwoodUnion County7,968
Mansfield TownshipWarren County7,889
BloomingdalePassaic County7,795
Chester TownshipMorris County7,776
BrigantineAtlantic County7,697
BerlinCamden County7,614
Haddon HeightsCamden County7,588
PalmyraBurlington County7,587
Green Brook TownshipSomerset County7,451
WhartonMorris County7,444
EmersonBergen County7,413
WashingtonWarren County7,375
Upper Freehold TownshipMonmouth County7,241
MountainsideUnion County7,228
Buena Vista TownshipAtlantic County7,197
RumsonMonmouth County7,191
StratfordCamden County7,185
KeyportMonmouth County7,182
MilltownMiddlesex County7,170
BarringtonCamden County7,140
Midland ParkBergen County7,104
LinwoodAtlantic County7,072
Tabernacle TownshipBurlington County6,948
AllendaleBergen County6,928
Washington TownshipWarren County6,927
North CaldwellEssex County6,769
RockawayMorris County6,651
WatchungSomerset County6,606
Morris PlainsMorris County6,590
Shamong TownshipBurlington County6,582
Union TownshipHunterdon County6,536
Eastampton TownshipBurlington County6,524
CarlstadtBergen County6,454
OceanportMonmouth County6,383
Prospect ParkPassaic County6,382
RoselandEssex County6,370
Old TappanBergen County6,342
New Hanover TownshipBurlington County6,339
PaulsboroGloucester County6,316
Lebanon TownshipHunterdon County6,237
Woodcliff LakeBergen County6,234
Hainesport TownshipBurlington County6,128
Logan TownshipGloucester County6,116
Fair HavenMonmouth County6,114
Little SilverMonmouth County6,101
Dennis TownshipCape May County6,098
Mendham TownshipMorris County6,057
Berlin TownshipCamden County6,044
Rochelle Park TownshipBergen County6,002
Mount ArlingtonMorris County5,979
HightstownMercer County5,978
ManasquanMonmouth County5,925
Tewksbury TownshipHunterdon County5,919
Mullica TownshipAtlantic County5,878
JamesburgMiddlesex County5,869
NorwoodBergen County5,854
BelmarMonmouth County5,846
Blairstown TownshipWarren County5,783
SomerdaleCamden County5,712
Union BeachMonmouth County5,691
Andover TownshipSussex County5,685
Independence TownshipWarren County5,651
ClementonCamden County5,600
Greenwich TownshipWarren County5,528
Allamuchy TownshipWarren County5,475
Englewood CliffsBergen County5,443
Fairfield TownshipCumberland County5,395
SalemSalem County5,369
Frankford TownshipSussex County5,349
GarwoodUnion County5,346
Margate CityAtlantic County5,239
Holland TownshipHunterdon County5,232
Maurice River TownshipCumberland County5,184
WildwoodCape May County5,098
Harrington ParkBergen County5,088
FranklinSussex County5,059
Greenwich TownshipGloucester County5,033
MendhamMorris County5,000
NorthvaleBergen County4,979
South Bound BrookSomerset County4,965
Delanco TownshipBurlington County4,953
DemarestBergen County4,941
Point Pleasant BeachOcean County4,941
BrielleMonmouth County4,938
Hampton TownshipSussex County4,938
Penns GroveSalem County4,921
FlemingtonHunterdon County4,905
Spring Lake HeightsMonmouth County4,859
Alexandria TownshipHunterdon County4,845
White TownshipWarren County4,729
Commercial TownshipCumberland County4,724
Mount EphraimCamden County4,700
Mountain LakesMorris County4,644
Neptune CityMonmouth County4,599
Delaware TownshipHunterdon County4,592
BuenaAtlantic County4,555
Elk TownshipGloucester County4,506
Boonton TownshipMorris County4,460
Hopewell TownshipCumberland County4,452
Egg Harbor CityAtlantic County4,442
Atlantic HighlandsMonmouth County4,402
MagnoliaCamden County4,396
WestvilleGloucester County4,350
Medford LakesBurlington County4,347
Ho-Ho-KusBergen County4,342
HighlandsMonmouth County4,337
Pilesgrove TownshipSalem County4,267
MerchantvilleCamden County4,226
LambertvilleHunterdon County4,197
Mine Hill TownshipMorris County4,171
Cranbury TownshipMiddlesex County4,170
ShrewsburyMonmouth County4,167
RiverdaleMorris County4,142
Bradley BeachMonmouth County4,140
Stillwater TownshipSussex County4,093
BordentownBurlington County4,068
OaklynCamden County3,979
East Amwell TownshipHunterdon County3,948
Harding TownshipMorris County3,936
NetcongMorris County3,925
Montague TownshipSussex County3,880
Kingwood TownshipHunterdon County3,863
Bethlehem TownshipHunterdon County3,774
WoodstownSalem County3,757
South Toms RiverOcean County3,756
Green TownshipSussex County3,712
TuckertonOcean County3,701
High BridgeHunterdon County3,607
StanhopeSussex County3,599
North WildwoodCape May County3,555
Upper Pittsgrove TownshipSalem County3,507
South Harrison TownshipGloucester County3,472
HaworthBergen County3,450
Saddle RiverBergen County3,443
HamburgSussex County3,351
LawnsideCamden County3,333
Alloway TownshipSalem County3,327
Fredon TownshipSussex County3,316
Franklin TownshipHunterdon County3,307
Pohatcong TownshipWarren County3,296
Springfield TownshipBurlington County3,293
Monmouth BeachMonmouth County3,218
Deerfield TownshipCumberland County3,216
MoonachieBergen County3,168
Long Beach TownshipOcean County3,157
Woodbury HeightsGloucester County3,155
Lawrence TownshipCumberland County3,130
National ParkGloucester County3,085
Wildwood CrestCape May County3,036
West Amwell TownshipHunterdon County3,034
Franklin TownshipWarren County3,021

Read the full New Jersey investigator guide

Neighboring states: Delaware · New York · Pennsylvania

How this service works

Investigator Consulting in New Jersey

Delator Group is a private investigation firm licensed in Tennessee and headquartered in Nashville. In New Jersey, Delator Group is not licensed as a private investigator or private investigative agency and does not perform, supervise or direct investigations. We review requests and refer them to independent investigators who hold the license New Jersey requires. Those investigators contract with clients directly, set their own fees and are responsible for the work. Delator Group may receive compensation from participating investigators for referrals.

FAQ

Questions About Finding an Investigator in New Jersey

Which New Jersey communities have their own page?

Every incorporated New Jersey city, town or village with more than 3,000 residents, plus every township or town government of that size, has its own page here, 451 in all. Smaller places are covered by the nearest page and the statewide guide.

Is Delator Group licensed in New Jersey?

No. In New Jersey, Delator Group provides investigator consulting and referral only. Investigations are performed by independently licensed New Jersey investigators who contract with you directly.

Who licenses private investigators in New Jersey?

The New Jersey State Police, Private Detective Unit, under Private Detective Act of 1939, N.J.S.A. 45:19-8 et seq.. Any person or business that engages in or advertises the private detective business for hire needs a license issued through the State Police, and agency employees are registered with the Private Detective Unit.

How do I check an investigator's New Jersey license?

Ask the agency for its license number and licensee's name, then confirm them directly with the New Jersey State Police Private Detective Unit.

Is New Jersey a one-party or two-party consent state?

New Jersey is generally a one-party consent state. Under N.J.S.A. 2A:156A-4(d), a person may record a communication they are part of, or one where a party has given prior consent, unless the purpose is criminal or tortious. Recording other people's conversations without any party's consent is a crime. An attorney can confirm what applies.