Iowa

Cerro Gordo

43,127
2020 population
1860
first census record
17
census records

About Cerro Gordo

Cerro Gordo, Iowa, first appears in the United States federal census in 1860, when it recorded a population of 940. At the most recent census, in 2020, its population stood at 43,127.

Its recorded population peaked at 49,894 in 1960, and has since declined by roughly 14 percent.

On the ground today, 49 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
202043,127
201044,151
200046,447
199046,733
198048,458
197049,335
196049,894
195046,053
194043,845
193038,476
192034,675
191025,011
190020,672
189014,864
188011,461
18704,722
1860940
Source

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

Historic places in Cerro Gordo

National Register of Historic Places listings in Cerro Gordo, Iowa.

Mason City Public Library
Mason City
First National Bank of Mason City
Mason City
MBA (Modern Brotherhood of America) Building
Mason City
Winnebago River Bridge
Mason City
Rock Falls Bridge
Rock Falls
Yelland, Curtis, House
Mason City
Surf Ballroom
Clear Lake
State Street Bridge
Mason City
Parker's Opera House
Mason City
Rye, Chris, House
Mason City
Rule, Duncan, House
Mason City
Forest Park Historic District
Mason City
East Park Band Shell
Mason City
Jewell Apartments
Mason City
St. John Baptist Church
Mason City
Park Inn Hotel
Mason City
Wolf, Mier, House
Mason City
Andrus, A. J., Duplex
Mason City
Stewart Avenue Bridge
Mason City
Elks-Rogers Hotel
Clear Lake
Cannon, Amaziah and Cornelia (Wait), House
Mason City
Wagner-Mozart Music Hall
Mason City
Rock Crest-Rock Glen Historic District
Mason City
Mason City Downtown Historic District
Mason City
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Everything a full report reveals about Cerro Gordo County, Iowa

This page charts the census history of Cerro Gordo 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.
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Frequently asked about Cerro Gordo

When does Cerro Gordo first appear in the US census?
Cerro Gordo, Iowa first appears in the federal census in 1860, with a recorded population of 940.
What is the population of Cerro Gordo?
At the most recent federal census (2020), Cerro Gordo had a recorded population of 43,127.
When did Cerro Gordo's population peak?
Cerro Gordo's recorded population peaked at 49,894 in 1960.
How many historic places are in Cerro Gordo?
49 sites are listed on the National Register of Historic Places in Cerro Gordo, Iowa.
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