Essex County, New Jersey
County seat: Newark · Population 896,379 (2025) · 126 sq mi
Essex County is the 2nd most populous of New Jersey's 21 counties, with 896,379 people (2025 estimate). Its county seat is Newark. The map shows its 7 cities and towns and the 5 neighboring counties.
Essex County facts
- County seat
- Newark
- Population (2025 estimate)
- 896,379 +3.9% since 2020
- Land area
- 126 sq mi 19th largest of 21
- Water area
- 3 sq mi
- Population density
- 7,110 per sq mi
- Established
- 1683
- Same name
- One of 5 Essex Counties in the US
- Named after
- Essex ceremonial county in England (use Q21272241 for administrative non-metropolitan county)
- Largest city
- Newark 323,808
- Median household income
- $80,789
- Cities and towns
- 7 plus 10 CDPs
- ZIP codes
- 31
- Time zone
- Eastern
- FIPS code
- 34013
Cities and towns in Essex County
Essex County has 7 incorporated cities, towns and villages. Populations count the people living inside Essex County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Newark (county seat) | City | 323,808 | |
| East Orange | City | 72,159 | |
| Caldwell | Borough | 9,375 | |
| Glen Ridge | Borough | 8,259 | |
| North Caldwell | Borough | 6,815 | |
| Roseland | Borough | 6,417 | |
| Essex Fells | Borough | 2,235 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Short Hills | 14,923 | |
| Upper Montclair | 12,457 | |
| Brookdale | 9,960 | |
| Watsessing | 8,232 | |
| Ampere North | 5,029 | |
| Silver Lake | 3,917 | |
| Pleasantdale | 2,145 | |
| Llewellyn Park | 560 | |
| Montclair State University | 251 | Passaic County |
| Vauxhall | 198 | Union County |
ZIP codes in Essex County
31 ZIP codes reach into Essex County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 07003
- 07004
- 07006
- 07009 also Passaic County
- 07017
- 07018
- 07021
- 07028
- 07039
- 07040
- 07041
- 07042
- 07043 also Passaic County
- 07044
- 07050
- 07052
- 07068
- 07078
- 07079
- 07102
- 07103
- 07104
- 07105
- 07106
- 07107
- 07108
- 07109
- 07110 also Passaic County
- 07111
- 07112
- 07114
Population of Essex County, 2020–2025
Essex County grew by 33,604 people (+3.9%) between April 2020 and July 2025: 16,366 more births than deaths and a net gain of 16,795 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 859,934 |
| 2021 | 854,485 |
| 2022 | 855,294 |
| 2023 | 871,153 |
| 2024 | 891,241 |
| 2025 | 896,379 |
Neighboring counties
- Morris County west · 524,251 people
- Union County south · 601,863 people
- Hudson County southeast · 735,033 people
- Passaic County north · 531,624 people
- Bergen County northeast · 977,026 people
Printable Essex County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (108 KB)
- PNG (2400 px) (114 KB)
Paste this code to embed the map on your site:
Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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