New Jersey County Map with Cities — All 21 Counties
All 21 of New Jersey's counties, mapped from official U.S. Census boundaries with population, income, and unemployment for every one. Color the map by any measure, tap a county for its data, or download a print-ready copy.
Tap any county for its population, income, and more.
New Jersey at a glance
- Scale. New Jersey is divided into 21 counties across 7,355 sq mi of land, an average of 350 sq mi each. calculated from Census TIGER 2026
- People. Its counties are home to 9,548,215 residents. That averages 454,677 each, or 1,298 per square mile statewide. calculated from Census PEP V2025 · Census TIGER 2026
- Water. Another 1,364 sq mi is water, or 15.6% of the state’s area. Cape May County has the most. calculated from Census TIGER 2026
New Jersey’s 21 counties, by the numbers
The table lists every county’s population, median household income, unemployment, density, and land area. Sort it by any column to find yours or rank them. A few patterns stand out:
- Concentrated. Half of New Jersey’s 9,548,215 residents live in just 6 of 21 counties, and the 5 largest hold 43.6% of the total. calculated from Census PEP V2025
- Income tracks poverty. The gap from richest to poorest runs 2.0×, and the 10 highest-income counties average 6.5% in poverty against 11.6% for the 10 lowest. calculated from Census SAIPE 2024
- The median county. Half of New Jersey’s counties have fewer than 481,439 residents, and half report a median household income below $101,023. calculated from Census PEP V2025 · Census SAIPE 2024
- Lopsided density. Only 9 of 21 counties are denser than New Jersey’s statewide average of 1,298 people per square mile. calculated from Census PEP V2025 · Census TIGER 2026
| Atlantic County | 278,657 | $74,693 | 4.8% | 502/sq mi | 556 sq mi | Mays Landing |
| Bergen County | 977,026 | $121,894 | 3.5% | 4,197/sq mi | 233 sq mi | Hackensack |
| Burlington County | 481,439 | $106,525 | 3.8% | 602/sq mi | 799 sq mi | Mount Holly |
| Camden County | 535,799 | $91,411 | 4.5% | 2,420/sq mi | 221 sq mi | Camden |
| Cape May County | 93,390 | $91,758 | 5.1% | 371/sq mi | 252 sq mi | Middle Township |
| Cumberland County | 157,148 | $66,986 | 6.1% | 325/sq mi | 483 sq mi | Bridgeton |
| Essex County | 896,379 | $84,900 | 5.1% | 7,110/sq mi | 126 sq mi | Newark |
| Gloucester County | 312,638 | $104,403 | 3.9% | 971/sq mi | 322 sq mi | Woodbury |
| Hudson County | 735,033 | $93,468 | 3.8% | 15,913/sq mi | 46 sq mi | Jersey City |
| Hunterdon County | 131,781 | $136,956 | 3.3% | 308/sq mi | 428 sq mi | Flemington |
| Mercer County | 399,289 | $102,760 | 4.2% | 1,779/sq mi | 224 sq mi | Trenton |
| Middlesex County | 883,335 | $113,828 | 4.2% | 2,856/sq mi | 309 sq mi | New Brunswick |
| Monmouth County | 651,035 | $121,051 | 3.7% | 1,391/sq mi | 468 sq mi | Freehold |
| Morris County | 524,251 | $137,213 | 3.5% | 1,137/sq mi | 461 sq mi | Morristown |
| Ocean County | 673,746 | $94,954 | 4.0% | 1,072/sq mi | 628 sq mi | Toms River |
| Passaic County | 531,624 | $85,224 | 4.7% | 2,856/sq mi | 186 sq mi | Paterson |
| Salem County | 66,280 | $81,009 | 5.1% | 200/sq mi | 332 sq mi | Salem |
| Somerset County | 356,486 | $134,499 | 3.7% | 1,181/sq mi | 302 sq mi | Somerville |
| Sussex County | 148,063 | $114,993 | 3.7% | 286/sq mi | 518 sq mi | Newton |
| Union County | 601,863 | $101,023 | 4.4% | 5,856/sq mi | 103 sq mi | Elizabeth |
| Warren County | 112,953 | $94,865 | 3.8% | 317/sq mi | 357 sq mi | Belvidere |
Click a column heading to sort all 21 counties. A suppressed estimate (coefficient of variation ≥ 0.30) shows a marker, never a guess. County seats are from Wikidata (CC0), each validated to a Census place inside its county. Where Wikidata has none, the seat comes from the page cited for that county in the seat file, and where the table names no seat, it says why. See the methodology.
Download & print this New Jersey map
New Jersey maps, colored by the data
Cities in New Jersey
New Jersey has 324 incorporated cities, towns, boroughs, and villages. The largest is Newark in Essex County with 310,178 residents. Use the search on the map above to find any city and highlight the county it sits in.
| Newark | Essex County | 310,178 |
| Jersey City | Hudson County | 294,078 |
| Paterson | Passaic County | 158,735 |
| Elizabeth | Union County | 137,302 |
| Trenton | Mercer County | 90,338 |
| Clifton | Passaic County | 89,379 |
| Bayonne | Hudson County | 71,553 |
| Camden | Camden County | 71,496 |
| East Orange | Essex County | 70,090 |
| Passaic | Passaic County | 70,002 |
| Union City | Hudson County | 66,463 |
| Vineland | Cumberland County | 61,006 |
| Hoboken | Hudson County | 58,668 |
| New Brunswick | Middlesex County | 56,345 |
| Perth Amboy | Middlesex County | 55,855 |
| Plainfield | Union County | 55,236 |
| West New York (town) | Hudson County | 52,004 |
| Hackensack | Bergen County | 46,057 |
| Sayreville (borough) | Middlesex County | 45,838 |
| Linden | Union County | 44,192 |
| Kearny (town) | Hudson County | 40,614 |
| Fort Lee (borough) | Bergen County | 40,067 |
| Atlantic City | Atlantic County | 38,632 |
| Fair Lawn (borough) | Bergen County | 35,610 |
| Garfield | Bergen County | 32,783 |
| Long Branch | Monmouth County | 32,530 |
| Westfield (town) | Union County | 31,111 |
| Princeton | Mercer County | 30,756 |
| Rahway | Union County | 30,109 |
| Englewood | Bergen County | 29,638 |
| Bergenfield (borough) | Bergen County | 28,450 |
| Millville | Cumberland County | 27,511 |
| Bridgeton | Cumberland County | 27,001 |
| Paramus (borough) | Bergen County | 26,568 |
| Ridgewood (village) | Bergen County | 26,308 |
| Lodi (borough) | Bergen County | 26,082 |
| Cliffside Park (borough) | Bergen County | 25,781 |
| Carteret (borough) | Middlesex County | 25,496 |
| South Plainfield (borough) | Middlesex County | 24,473 |
| Glassboro (borough) | Gloucester County | 23,717 |
| North Plainfield (borough) | Somerset County | 22,809 |
| Summit | Union County | 22,705 |
| Roselle (borough) | Union County | 22,646 |
| Secaucus (town) | Hudson County | 21,778 |
| Lindenwold (borough) | Camden County | 21,719 |
| Elmwood Park (borough) | Bergen County | 21,412 |
| Pleasantville | Atlantic County | 20,712 |
| Morristown (town) | Morris County | 20,453 |
| Harrison (town) | Hudson County | 20,369 |
| Palisades Park (borough) | Bergen County | 20,290 |
The table shows the 50 most populous. Search the map above for the other 274.
A city can reach into more than one county. The table names the one its center falls in; “+N more” counts the others, from the Census Bureau’s count of each city by county part Census ACS 2020–2024 place parts.
Which New Jersey county is the richest, largest, most crowded? The answers
- New Jersey’s highest median household income is in Morris County ($137,213); the lowest is in Cumberland County ($66,986). Census SAIPE 2024
- New Jersey’s most populous county is Bergen County (977,026); the least populous is Salem County (66,280), a 15× spread. calculated from Census PEP V2025
- New Jersey’s largest county by land area is Burlington County (799 sq mi); the smallest is Hudson County (46 sq mi). Census TIGER 2026
- New Jersey’s highest population density is in Hudson County (15,913/sq mi); the lowest is in Salem County (200/sq mi). calculated from Census PEP V2025 · Census TIGER 2026
- New Jersey’s highest poverty rate is in Hudson County (14.7%); the lowest is in Hunterdon County (4.5%). Census SAIPE 2024
- In New Jersey, unemployment is highest in Cumberland County (6.1%) and lowest in Hunterdon County (3.3%), for September 2026 (preliminary). BLS LAUS September 2026, preliminary
- New Jersey’s highest median age is in Cape May County (51.8); the lowest is in Hudson County (35.8). Census ACS 2020–2024
- New Jersey’s highest share of adults 25 and over with a bachelor’s degree or higher is in Morris County and Somerset County (tied at 57.8%); the lowest is in Cumberland County (18.9%). Census ACS 2020–2024
Every figure is a current official estimate from the source named, never a crowd-sourced or copied value. Suppressed estimates (coefficient of variation ≥ 0.30) are omitted, never guessed. See the full methodology.
New Jersey counties: common questions
How many counties are in New Jersey?
New Jersey has 21 counties covering 7,355 sq mi and about 9.5M residents. Every one is on the map and in the table above.
What is the largest county in New Jersey?
It depends on the measure. By land area it’s Burlington County (799 sq mi); by population it’s Bergen County (977,026 residents).
What county is Newark in?
Newark, population 310,178, is in Essex County. Use the search on the map to find any New Jersey city’s county.
What is the richest county in New Jersey?
By median household income, Morris County is the richest at $137,213; the poorest is Cumberland County at $66,986. Census SAIPE 2024
What is the most populous county in New Jersey?
Bergen County, with 977,026 residents, about 10.2% of New Jersey’s people. That is 15× the least populous, Salem County (66,280).
Sources & vintages
- Source: U.S. Census Bureau, Population Estimates, Vintage 2025 (July 1, 2025) — retrieved Nov 2026
- Source: U.S. Census Bureau, Small Area Income and Poverty Estimates (SAIPE), 2024 — retrieved Nov 2026
- Source: U.S. Census Bureau, American Community Survey 5-year estimates 2020–2024, B01002 median age — retrieved Nov 2026
- Source: U.S. Census Bureau, American Community Survey 5-year estimates 2020–2024, S1501 educational attainment — retrieved Nov 2026
- Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics (LAUS), September 2026, preliminary — retrieved Nov 2026
- Source: U.S. Census Bureau, TIGERweb county boundaries, January 1, 2026 vintage — retrieved Nov 2026
- Source: U.S. Census Bureau, TIGERweb incorporated places, January 1, 2026 vintage — retrieved Nov 2026
- Source: U.S. Census Bureau, American Community Survey 5-year estimates 2020–2024, B01003 total population by place — retrieved Nov 2026
- Source: Wikidata, county seats (P36), query of 2026-11-11 — retrieved Nov 2026
- Source: County, state and Census sources, seats and no-seat reasons for 92 county-equivalents (3 rows cite the Virginia Association of Counties) — retrieved Nov 2026
- Calculated: population density = population ÷ land area (people per sq mi) (method)
- Calculated: state totals = sum over the state’s counties (population, land area, water area) (method)
- Calculated: averages per county = state total ÷ number of counties (method)
- Calculated: population shares = county (or top-5) population ÷ state total × 100; “half the residents” = fewest largest counties whose populations sum to ≥ 50% of the total (method)
- Calculated: medians across counties = middle value of the county values (mean of the two middle values for an even count) (method)
- Calculated: spreads = highest county value ÷ lowest county value (method)
- Calculated: income tiers vs poverty = mean poverty rate of the N highest- and N lowest-income counties, N = min(10, ⌊counties ÷ 2⌋), only for states with ≥ 6 counties (method)
- Calculated: rankings and superlatives = highest / lowest county value; suppressed values excluded (method)
- Calculated: water share = water area ÷ (land area + water area) × 100 (method)
- Calculated: square miles = TIGER AREALAND or AREAWATER (m²) ÷ 2,589,988.11, rounded to 2 dp (method)
Data current through .