County Census Records

New Jersey Counties

21 counties with population data from the decennial US Census, 1790 to 2020.

21 counties

Population as of 2020 census
Atlantic
274,534
Bergen
955,732
Burlington
461,860
Camden
523,485
Cape May
95,263
Cumberland
154,152
Essex
863,728
Gloucester
302,294
Hudson
724,854
Hunterdon
128,947
Mercer
387,340
Middlesex
863,162
Monmouth
643,615
Morris
509,285
Ocean
637,229
Passaic
524,118
Salem
64,837
Somerset
345,361
Sussex
144,221
Union
575,345
Warren
109,632
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The Land
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Geology
The bedrock beneath the site, its age and rock type, reaching back millions of years.
LiDAR Terrain
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Conflict & War
The battles, raids and skirmishes fought near here, across every era of American conflict.
The Civil War
The Civil War on this ground, 1861 to 1865: who held it, and the battles, camps and regiments nearby.
The Soldiers
The men who marched from here in the Civil War, named and traced where the record allows.
Native Heritage
The Native nations who held this land, mapped across time from before European contact to today.
Settlement
Who claimed and held this ground, from Indigenous homelands through the colonial powers to the United States.
The Community
How the town grew, who came, and what kind of place it became, traced through the census record.
Rivers & Rail
The rivers, canals and railroads that connected this place between 1830 and 1911.
Notable People
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Historical Maps
Historic maps of the location layered over how it looks today.
Finds & Access
Museum objects tied to the area, and the laws on searching, collecting and access here.
Literature
The old books, county histories and archives that mention this place, quoted with their sources.
Spotlight
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Points of Interest
The most significant historic sites and landmarks near the location, and why they matter.
Timeline
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