Cerro Gordo County, Iowa
Cerro Gordo County: county in Iowa, United States
About
Cerro Gordo County is a county located in the U.S. state of Iowa. As of the 2010 census, the population was 44,151 and a population density of 30 people per km². After 10 years in 2020 county had an estimated population of 42,103 inhabitants. Its county seat is Mason City. The county was created 175 years ago in 1850.
County Snapshot
Cerro Gordo County at a glance
Cerro Gordo County currently has 9 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
9
These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.
Iowa counties
99
Open related pagesLargest city
Mason CityPopulation 26,931
Top linked places
Quick Facts about Cerro Gordo County
| Population | 42,103 (2020) |
| Country | United States of America |
| State | Iowa (United States) |
| Twitter username | cgcounty |
| Area | 1490 km2 |
| Water as percent of area | 1.2% |
| Land as percent of area | 98.8% |
| Latitude & Longitude | 43.0816,-93.2608 |
| Named for | Battle of Cerro Gordo |
| Altitude | 1,211 feet / 369 meters |
| Capital | Mason City |
| Establishment | January 01, 1851 |
| Time Zone | America/Chicago |
| Local time | 17:21:03 (18th April 2026) |
| Density | 28 Pop. per km² as of 2020 |
| Population growth | -4.86% (2010-2020) |
| Weather | 46℉ Sunny 7-days weather |
Geography
Cerro Gordo County is located at 43°4'54"N 93°15'39"W (43.0815600, -93.2608200). It has 2 neighbors: Franklin County and Worth County.
Cerro Gordo County map
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The largest city of Cerro Gordo County is Mason City with a population of 26,931. Other cities include, Clear Lake population 7,517, Rockwell population 979, Ventura population 706 and Thornton population 401. See all Cerro Gordo County cities & populated places.
Cerro Gordo County Populated Places
Cities, towns, neighborhoods & other populated places in Cerro Gordo County.
| City Name | Population | Title |
|---|---|---|
| Mason City | 26,931 | City in Cerro Gordo County, Iowa |
| Clear Lake | 7,517 | City in Iowa, United States |
| Rockwell | 979 | City in Cerrro Gordo County, Iowa, United States |
| Ventura | 706 | Human settlement in Cerro Gordo County, Iowa, United States of America |
| Thornton | 401 | Human settlement in Cerro Gordo County, Iowa, United States of America |
| Meservey | 237 | Human settlement in Cerro Gordo County, Iowa, United States of America |
| Swaledale | 157 | City in Iowa, USA |
| Rock Falls | 146 | City in Cerro Gordo County, Iowa, United States |
| Dougherty | 56 | Township in Cerro Gordo County, Iowa |
Weather
Sunny, with a high near 46. Northwest wind 18 to 23 mph, with gusts as high as 31 mph.
7-Day Forecast- Mason City
Demographics
According to census records, the population of Cerro Gordo County decreased by 4.86% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 44,151 | - | census |
| 2011 | 43,971 | -0.41% | estimation process |
| 2012 | 43,699 | -0.62% | estimation process |
| 2013 | 43,528 | -0.39% | estimation process |
| 2014 | 43,206 | -0.75% | estimation process |
| 2015 | 42,983 | -0.52% | estimation process |
| 2016 | 43,096 | 0.26% | estimation process |
| 2017 | 42,999 | -0.23% | estimation process |
| 2018 | 42,642 | -0.84% | estimation process |
| 2019 | 42,450 | -0.45% | estimation process |
| 2020 | 42,103 | -0.82% | estimation process |
Iowa Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| Indiana | 820,445 | A city located in the state of Iowa. |
| Polk County | 494,281 | County in Iowa, United States |
| Linn County | 227,854 | County in Oregon, United States |
| Des Moines | 212,312 | The capital of Iowa. |
| Scott County | 173,216 | County in Tennessee, United States |
| Johnson County | 153,740 | County in Iowa, United States |
| Cedar Rapids | 134,027 | The second most populous city in Iowa. |
| Black Hawk County | 130,786 | County in Iowa, United States |
| Woodbury County | 103,138 | County in Iowa, United States of America |
| Davenport | 101,799 | The most populous city in Scott County, Iowa. |
| Story County | 98,237 | County in Iowa, United States |
| Dubuque County | 97,590 | County in Iowa, United States |
| Dallas County | 96,963 | County in Iowa, United States |
| Pottawattamie County | 93,328 | County in Iowa, United States of America |
| Sioux City | 82,651 | The second most populous city in Iowa. |
| Iowa City | 75,130 | The most populous city in Johnson County, Iowa. |