Iowa

Warren

52,403
2020 population
1850
first census record
18
census records

About Warren

Warren, Iowa, first appears in the United States federal census in 1850, when it recorded a population of 961. At the most recent census, in 2020, its population stood at 52,403.

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

On the ground today, 12 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
202052,403
201046,225
200040,671
199036,033
198034,878
197027,432
196020,829
195017,758
194017,695
193017,700
192018,047
191018,194
190020,376
189018,269
188019,578
187017,980
186010,281
1850961
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, Iowa.

Coal Creek Bridge
Carlisle
United Presbyterian Church, Summerset
Scotch Ridge
Palmyra Methodist Episcopal Church
Palmyra
Indianola High School
Indianola
Polled Hereford Breed Origin Site
Indianola
Science Hall
Indianola
Indianola Carnegie Library
Indianola
Browse all Iowahistoric sites ›

Other counties in Iowa

Explore census history and historic records for more Iowa counties.

ClarkeClayClaytonClintonCrawfordDallasDavisDecaturDelawareDes MoinesDickinsonDubuqueEmmetFayetteFloydFranklinFremontGreeneGrundyGuthrie
Unlimited access

Everything a full report reveals about Warren County, Iowa

This page charts the census history of Warren County, Iowa. 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.
First month just $5.99, then $11.99 a month. Unlimited locations, cancel anytime.

Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.

Start your Warren County, Iowa report
Or see a real report first

Explore Iowa records

Iowahistory ›NRHP historic sites ›Notable people from Iowa›

Frequently asked about Warren

When does Warren first appear in the US census?
Warren, Iowa first appears in the federal census in 1850, with a recorded population of 961.
What is the population of Warren?
At the most recent federal census (2020), Warren had a recorded population of 52,403.
How many historic places are in Warren?
12 sites are listed on the National Register of Historic Places in Warren, Iowa.
Aubrey Research

Research the history of any US location

Aubrey searches federal archives, archaeological records, historic registers, and primary sources to build a full historical report for any address or place in the United States.

Research your locationView a free sample report