New Jersey

Warren

109,632
2020 population
1830
first census record
20
census records

About Warren

Warren, New Jersey, first appears in the United States federal census in 1830, when it recorded a population of 18,627. At the most recent census, in 2020, its population stood at 109,632.

The county's recorded population has risen across the decades to its highest level in 2020.

On the ground today, 44 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
2020109,632
2010108,692
2000102,437
199091,607
198084,429
197073,879
196063,220
195054,374
194050,181
193049,319
192045,057
191043,187
190037,781
189036,553
188036,589
187034,336
186028,433
185022,358
184020,366
183018,627
Source

Population data from the United States decennial census, U.S. Census Bureau (public domain).

Historic places in Warren

National Register of Historic Places listings in Warren, New Jersey.

Lander-Stewart Mansion and Stites Building
Phillipsburg Town
Beattystown
Beattystown
Centenary Collegiate Institute
Hackettstown
Belvidere Historic District
Belvidere
Johnsonburg Historic District
Johnsonburg
St. James Lutheran Church and Cemetery
Pohatcong Township
Shippen Manor
Oxford
Rutherford Hall
Allamuchy
Oxford Industrial Historic District
Oxford
Port Murray Historic District
Washington
Port Colden Historic District
Washington Township
Perry-Petty Farmstead
Mansfield Township
Hope District
Hope
Vass Farmstead
Hardwick
Imlaydale Historic District
Hampton
Washington Railroad Station
Washington
Allamuchy Freight House
Allamuchy
Hixson-Skinner Mill Complex
Phillipsburg
Richey, John, House
Franklin
Oxford Furnace
Oxford
Seigle Homestead
Finesville
Blair Presbyterial Academy
Blairstown
Miller Farmstead
Anderson
Van Nest-Hoff-Vannatta Farmstead
Harmony
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Other counties in New Jersey

Explore census history and historic records for more New Jersey counties.

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Everything a full report reveals about Warren County, New Jersey

This page charts the census history of Warren County, New Jersey. A full Aubrey report for an address here pulls together everything the historical record holds about the ground, from the earliest settlement to the twentieth century:

Overview
An interactive map of the location with historic sites, battles and Native heritage plotted, and its full story era by era.
The Land
The historic sites and place names around the location, and how this land was settled and used.
Geology
The bedrock beneath the site, its age and rock type, reaching back millions of years.
LiDAR Terrain
Laser-scanned terrain that reveals earthworks and old features hidden in the landscape.
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
The people born, buried or genuinely tied to this exact place, with their stories.
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
A deep dive into the most remarkable, lesser-known history of the place, traced back to the record.
Points of Interest
The most significant historic sites and landmarks near the location, and why they matter.
Timeline
The whole story of the location told era by era, from first peoples to the present day.
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Frequently asked about Warren

When does Warren first appear in the US census?
Warren, New Jersey first appears in the federal census in 1830, with a recorded population of 18,627.
What is the population of Warren?
At the most recent federal census (2020), Warren had a recorded population of 109,632.
How many historic places are in Warren?
44 sites are listed on the National Register of Historic Places in Warren, New Jersey.
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