Washington County, Iowa
Washington County: county in Iowa, United States
About
Washington County is a county located in the U.S. state of Iowa. As of the 2010 census, the population was 21,704 and a population density of 38 people per km². After 10 years in 2020 county had an estimated population of 21,992 inhabitants. Its county seat is Washington. The county was created 188 years ago in 1837.
County Snapshot
Washington County at a glance
Washington County currently has 8 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
8
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
KalonaPopulation 2,560
Top linked places
Quick Facts about Washington County
| Population | 21,992 (2020) |
| Country | United States of America |
| State | Iowa (United States) |
| Different from | Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington Parish, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County, Washington County |
| Area | 571 km2 |
| Water as percent of area | 0.4% |
| Land as percent of area | 99.6% |
| Latitude & Longitude | 41.3356,-91.7179 |
| Named for | George Washington |
| Capital | Washington |
| Establishment | January 01, 1838 |
| Time Zone | America/Chicago |
| Local time | 17:23:02 (18th April 2026) |
| Density | 39 Pop. per km² as of 2020 |
| Population growth | 1.31% (2010-2020) |
| Weather | 36℉ Mostly Cloudy 7-days weather |
Geography
Washington County is located at 41°20'8"N 91°43'4"W (41.3355900, -91.7178700). It has 3 neighbors: Henry County, Jefferson County and Johnson County.
Washington County map
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The largest city of Washington County is Kalona with a population of 2,560. Other cities include, Wellman population 1,401, Washington population 1,131, Riverside population 1,021 and Brighton population 641. See all Washington County cities & populated places.
Washington County Populated Places
Cities, towns, neighborhoods & other populated places in Washington County.
| City Name | Population | Title |
|---|---|---|
| Kalona | 2,560 | Town in the U. |
| Wellman | 1,401 | City in Iowa, USA |
| Washington | 1,131 | City in Washington County, Kansas |
| Riverside | 1,021 | City in Washington County, Iowa, USA |
| Brighton | 641 | City in Washington County, Iowa, United States |
| Ainsworth | 577 | Human settlement in Washington County, Iowa, United States of America |
| Crawfordsville | 267 | City in Washington County, Iowa |
| West Chester | 147 | Human settlement in Washington County, Iowa, United States of America |
Weather
Mostly cloudy. Low around 36, with temperatures rising to around 39 overnight. Northwest wind around 15 mph, with gusts as high as 30 mph.
7-Day ForecastOfficial website of Washington County
Official Website- Washington
Demographics
The population of Washington County increased by 1.31% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 21,704 | - | census |
| 2011 | 21,822 | 0.54% | estimation process |
| 2012 | 21,903 | 0.37% | estimation process |
| 2013 | 21,944 | 0.19% | estimation process |
| 2014 | 22,029 | 0.39% | estimation process |
| 2015 | 22,145 | 0.52% | estimation process |
| 2016 | 22,126 | -0.09% | estimation process |
| 2017 | 22,204 | 0.35% | estimation process |
| 2018 | 22,058 | -0.66% | estimation process |
| 2019 | 21,965 | -0.42% | estimation process |
| 2020 | 21,992 | 0.12% | estimation process |
People born in Washington County (7)
People born in Washington County, including politician Earl W. Vincent, rancher, outlaw George Coe, sports coach Anthony Chez, .
More notable people
- Bill Karns (American baseball player) he was born in 28/12/1875
- Charles Burroughs (American sprinter) he was born in 03/12/1876
- Larry Marek (American politician) he was born in 01/01/1940
- James L. Gillis (American librarian) he was born in 03/10/1857
Other places with the same name (29)
- Washington County, Oregon county in Oregon, United States with a population of 603,514 people.
- Washington County, Minnesota county in Minnesota, United States with a population of 265,476 people.
- Washington County, Arkansas county in Arkansas, United States with a population of 243,216 people.
- Washington County, Pennsylvania county in Pennsylvania, United States with a population of 206,803 people.
- Washington County, Utah county in southwestern Utah, United States with a population of 184,913 people.
- Washington County, Maryland county in Maryland, United States with a population of 151,146 people.
- Washington County, Wisconsin county in Wisconsin, United States with a population of 136,445 people.
- Washington County, Tennessee county in Tennessee, United States with a population of 130,367 people.
- Washington County, Rhode Island county in Rhode Island, United States with a population of 125,746 people.
- Washington County, New York county in New York, United States with a population of 60,606 people.
- Washington County, Ohio county in Ohio, United States with a population of 59,652 people.
- Washington County, Vermont county in Vermont, United States with a population of 58,328 people.
- Washington County, Virginia county in Virginia, United States with a population of 53,695 people.
- Washington County, Oklahoma county in Oklahoma, United States with a population of 52,222 people.
- Washington County, Mississippi county in Mississippi, United States with a population of 42,837 people.
- Washington County, Texas county in Texas, United States with a population of 35,771 people.
- Washington County, Maine county in Maine, United States with a population of 31,473 people.
- Washington County, Indiana county in Indiana, United States with a population of 28,213 people.
- Washington County, Florida county in Florida, United States with a population of 25,932 people.
- Washington County, Missouri county in Missouri, United States with a population of 24,604 people.
- Washington County, Nebraska county in Nebraska, United States with a population of 20,901 people.
- Washington County, Georgia county in Georgia, United States with a population of 20,150 people.
- Washington County, Alabama county in Alabama, United States with a population of 15,976 people.
- Washington County, Illinois county in Illinois, United States with a population of 13,764 people.
- Washington County, Kentucky county in Kentucky, United States with a population of 12,147 people.
- Washington County, North Carolina county in North Carolina, United States with a population of 11,485 people.
- Washington County, Idaho county in Idaho, United States with a population of 10,194 people.
- Washington County, Kansas county in Kansas, United States with a population of 5,427 people.
- Washington County, Colorado county in Colorado, United States with a population of 4,875 people.
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. |