State 34 · NJ

New Jersey county map

New Jersey has 21 counties. Burlington County is the largest by land at 799 square miles, and Bergen County is the most populous with 978,641 residents.

Population 2024
9,500,851
#11 of 51
Land area
7,355 sq mi
#46 of 51
Density
1,291.8 / sq mi
#2 of 51
Counties
21
Capital: Trenton
N
Trenton 40.22° N, 74.76° W

Map of all 21 counties in New Jersey

Every county is labeled on Census 2024 boundaries. Download it as a PDF to print, a PNG, or an editable SVG. For blank, colored or city versions, see the printable New Jersey map sheets.

AtlanticBergenBurlingtonCamdenCape MayCumberlandEssexGloucesterHudsonHunterdonMercerMiddlesexMonmouthMorrisOceanPassaicSalemSomersetSussexUnionWarrenNew Jersey county map. Online Map Tools (onlinemaptools.com), Census 2024 boundaries, free to reuse with credit.
21 units labeled. The orange dot marks the capital.

New Jersey population and land area

New Jersey had 9,500,851 residents in the Census Vintage 2024 estimates, the sum of its counties. That ranks 11th of the 50 states and DC. Its 7,355 square miles of land rank 46th. New Jersey averages 1,291.8 people per square mile of land, 13.4 times the national figure of 96.3. By density it ranks 2nd.

Population, 2024
9,500,85111th of 51
Land area
7,355 sq mi46th of 51
Density
1,291.8 per sq mi2nd of 51
Number of counties
21
Capital
Trenton40.221° N, 74.756° W
State FIPS code
34

New Jersey counties by population, density and income

Each shape is shaded by quintile, darker for higher values. Switch the measure above the map. Select a shape to open that county's page. The pin marks the capital, Trenton.

Camden County: 2,412Hunterdon County: 308Warren County: 314Sussex County: 284Bergen County: 4,204Atlantic County: 502Hudson County: 15,938Essex County: 6,992Union County: 5,781Cumberland County: 322Burlington County: 595Monmouth County: 1,383Passaic County: 2,829Gloucester County: 968Mercer County: 1,747Salem County: 198Somerset County: 1,184Ocean County: 1,061Morris County: 1,135Cape May County: 373Middlesex County: 2,878
Density
  1. < 322
  2. 322+
  3. 968+
  4. 1,383+
  5. 2,878+
no data

Largest county in New Jersey by land area

Burlington County ranks first at 799 square miles and Hudson County last at 46 square miles. The top value is 17 times the bottom one.

  1. 01Burlington County799
  2. 02Ocean County628
  3. 03Atlantic County556
  4. 04Sussex County518
  5. 05Cumberland County483
  6. 06Monmouth County468
  7. 07Morris County461
  8. 08Hunterdon County428
  9. 09Warren County357
  10. 10Salem County332

Most populous county in New Jersey

Bergen County ranks first at 978,641 residents and Salem County last at 65,874 residents. The top value is 15 times the bottom one.

  1. 01Bergen County978,641
  2. 02Middlesex County890,119
  3. 03Essex County881,527
  4. 04Hudson County736,185
  5. 05Ocean County666,434
  6. 06Monmouth County647,520
  7. 07Union County594,160
  8. 08Camden County533,988
  9. 09Passaic County526,597
  10. 10Morris County523,053

Least populous county in New Jersey

The smallest populations, fewest first. Estimates for small counties carry more uncertainty than those for large ones.

  1. 01Salem County65,874
  2. 02Cape May County93,875
  3. 03Warren County112,031
  4. 04Hunterdon County131,708
  5. 05Sussex County147,444
Log scale, so small counties stay visible next to the largest.

Most densely populated county in New Jersey

Hudson County ranks first at 15,938.2 people per square mile and Salem County last at 198.5 people per square mile. The top value is 80 times the bottom one.

  1. 01Hudson County15,938.2
  2. 02Essex County6,991.8
  3. 03Union County5,781.5
  4. 04Bergen County4,204.0
  5. 05Middlesex County2,878.3
  6. 06Passaic County2,829.2
  7. 07Camden County2,412.3
  8. 08Mercer County1,746.9
  9. 09Monmouth County1,383.0
  10. 10Somerset County1,184.2
People per square mile of land, log scale.

Highest median household income in New Jersey

Somerset County ranks first at $140,242 and Cumberland County last at $64,240. The top value is 2.2 times the bottom one.

  1. 01Somerset County$140,242
  2. 02Hunterdon County$136,407
  3. 03Morris County$134,308
  4. 04Monmouth County$117,752
  5. 05Bergen County$116,157
  6. 06Sussex County$109,884
  7. 07Middlesex County$104,637
  8. 08Burlington County$102,384
  9. 09Union County$100,031
  10. 10Warren County$98,857

Towns and cities in New Jersey

The Census Vintage 2024 subcounty estimates list 294 incorporated places in New Jersey with 1,000 or more residents, holding 4,519,878 people together, or 48% of the state total. 194 of them have 5,000 or more. The northernmost is Sussex at 41.209° N and the southernmost is Cape May at 38.941° N. Among places of 5,000+, Garwood grew fastest from July 2020 to July 2024, by 20.7%.

  1. 01Newark317,303
  2. 02Jersey City302,824
  3. 03Paterson160,463
  4. 04Elizabeth140,413
  5. 05Trenton91,193
  6. 06Clifton90,322
  7. 07Bayonne74,532
  8. 08East Orange71,850
  9. 09Camden71,749
  10. 10Passaic70,722
  11. 11Union City66,918
  12. 12Vineland62,070
Largest incorporated places, Vintage 2024 estimates.

Trenton, the capital

100.0% of New Jersey's place population, 4,519,878 of 4,519,878 people, lives in places within 100 miles of Trenton. That ranks 6th of 51 for how central the capital is.

See all states in the capital radius ranking and the most remote towns ranking. Sunrise and sunset times for Trenton, month by month, are on the Trenton daylight page.

States bordering New Jersey

New Jersey borders 3 states or districts. The nearest neighboring capital is Dover, 84 miles SSW of Trenton in a straight line.

UTM zones in New Jersey

The internal points of New Jersey's counties fall in UTM zone 18. Zones are 6 degrees of longitude wide, numbered from 180° W: zone = floor((longitude + 180) / 6) + 1.

All 21 counties in New Jersey

Sort by any column. The small orange number marks the top 3 in the state by population.

FIPS
34003Bergen County978,641#12334,204.0$116,157
34023Middlesex County890,119#23092,878.3$104,637
34013Essex County881,527#31266,991.8$80,005
34017Hudson County736,1854615,938.2$88,469
34029Ocean County666,4346281,060.7$85,239
34025Monmouth County647,5204681,383.0$117,752
34039Union County594,1601035,781.5$100,031
34007Camden County533,9882212,412.3$82,678
34031Passaic County526,5971862,829.2$81,823
34027Morris County523,0534611,134.5$134,308
34005Burlington County475,515799594.9$102,384
34021Mercer County392,1382241,746.9$95,502
34035Somerset County357,4673021,184.2$140,242
34015Gloucester County311,783322968.2$96,965
34001Atlantic County279,114556502.4$75,904
34011Cumberland County155,678483322.1$64,240
34037Sussex County147,444518284.4$109,884
34019Hunterdon County131,708428307.8$136,407
34041Warren County112,031357314.2$98,857
34009Cape May County93,875252373.2$81,007
34033Salem County65,874332198.5$84,008

Download all 21 counties as CSV

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 Gazetteer, places
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.