Adams County, Washington
Adams County: County in the state of Washington, United States
About
Adams County is a county located in the U.S. state of Washington. As of the 2010 census, the population was 18,728 and a population density of 4 people per km². After 10 years in 2020 county had an estimated population of 20,027 inhabitants. Its county seat is Ritzville. The county was created 142 years ago in 1882.
Quick Facts about Adams County
| Population : | 20,027 (2020) |
| Country : | United States of America |
| State : | Washington (United States) |
| Different from : | Adams County, Adams County, Adams County, Adams County, Adams County, Adams County, Adams County, Adams County, Adams County, Adams County, Adams County |
| Area : | 4998 km2 |
| Water as percent of area : | 0.3% |
| Land as percent of area : | 99.7% |
| Named for : | John Adams |
| Capital : | Ritzville |
| Establishment : | January 01, 1883 |
| Time Zone : | America/Los_Angeles |
| Local time : | 23:15:33 (22nd February 2025) |
| Density : | 4 Pop. per km² as of 2020 |
| Population growth : | 6.49% (2010-2020) |
Geography
Adams County is located at 46°59'0"N 118°33'38"W (46.9833800, -118.5605000). It has 4 neighbors: Franklin County, Grant County, Lincoln County and Whitman County.
Adams County map
Click "full screen" 
icon to open full mode. View satellite images
icon to open full mode. View satellite images
The largest city of Adams County is Othello with a population of 8,454. Other cities include and Ritzville population 1,641. See all Adams County cities & populated places.
Adams County Populated Places
Cities, towns, neighborhoods & other populated places in Adams County.
| City Name | Population | Title |
|---|---|---|
| Othello | 8,454 | City |
| Ritzville | 1,641 | Small city, county seat of Adams County, Washington, USA |
| Lind | 555 | Town of the United States |
| Washtucna | 204 | Town of the United States |
| Hatton | 106 | Town in Adams County, Washington, USA |
- Official Website
Official website of Adams County
Adams County has 4 neighbours.
- Franklin County county in the state of Washington, United States
- Grant County county in the state of Washington, United States
- Lincoln County county in the state of Washington, United States
- Whitman County county in the state of Washington, United States
- Ritzville
Demographics
The population of Adams County increased by 6.49% in 10 years.
| Year | Population | % Change | Method |
| 2010 | 18,728 | - | census |
| 2011 | 18,877 | 0.79% | estimation process |
| 2012 | 18,944 | 0.35% | estimation process |
| 2013 | 19,098 | 0.81% | estimation process |
| 2014 | 19,177 | 0.41% | estimation process |
| 2015 | 19,233 | 0.29% | estimation process |
| 2016 | 19,369 | 0.7% | estimation process |
| 2017 | 19,651 | 1.44% | estimation process |
| 2018 | 19,736 | 0.43% | estimation process |
| 2019 | 19,983 | 1.24% | estimation process |
| 2020 | 20,027 | 0.22% | estimation process |
Adams, Adams Kontlugu, Adams Kontluğu, Adams Kun, Adams Kūn, Adams konderria, Adams megye, Adams qrafligi, Adams qraflığı, Comitatul Adams, Comte d'Adams, Comte dAdams, Comté d'Adams, Comté dAdams, Condado de Adams, Condado han Adams, Contea di Adams, Hrabstwo Adams, Kantono Adams, Okrug Adams, Quan Adams, Quận Adams, adamasa ka'unti, adamuzu jun, aedeomseu gun, mqatʿt admz, shhrstan adamz washyngtn, ya dang si xian, Адамс, Округ Адамс, ایڈمز کاؤنٹی، واشنگٹن, شهرستان آدامز، واشینگتن, مقاطعة ادمز, আডামস কাউন্টি, アダムズ郡, 亚当斯县, 애덤스 군
Other places with the same name (12)
- Adams County , Colorado county in Colorado, United States with a population of 519,883 people.
- Adams County , Pennsylvania county in Pennsylvania, United States with a population of 102,742 people.
- Adams County , Illinois county in Illinois, United States with a population of 64,783 people.
- Adams County , Indiana county in Indiana, United States with a population of 35,839 people.
- Adams County , Nebraska county in Nebraska, United States with a population of 31,321 people.
- Adams County , Mississippi county in Mississippi, United States with a population of 30,275 people.
- Adams County , Ohio county in Ohio, United States with a population of 27,531 people.
- Adams County , Wisconsin county in Wisconsin, United States with a population of 20,498 people.
- Adams County , Idaho county in Idaho, United States with a population of 4,294 people.
- Adams County , Iowa county in Iowa, United States with a population of 3,588 people.
- Adams County , North Dakota county in North Dakota, United States with a population of 2,188 people.
Washington Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| King County | 2,274,315 | County in the state of Washington, United States |
| Pierce County | 913,890 | County in the state of Washington, United States |
| Snohomish County | 830,393 | County in the state of Washington, United States |
| Seattle | 769,714 | The eighteenth most populous city in the United States and the center of the Seattle metropolitan area. |
| Spokane County | 528,225 | County in the state of Washington, United States |
| Clark County | 496,865 | County in Washington, United States |
| Thurston County | 294,074 | County in the state of Washington, United States |
| Kitsap County | 272,787 | County in the state of Washington, United States |
| Yakima County | 251,879 | County in the state of Washington, United States |
| Whatcom County | 231,016 | County in the state of Washington, United States |
| Spokane | 222,050 | The second most populous city in Washington. |
| Tacoma | 219,945 | The third most populous city in Washington. |
| Benton County | 206,426 | County in Arkansas, United States |
| Vancouver | 186,192 | The third most populous city in Washington. |
| Bellevue | 148,073 | The most populous city in Washington. |
| Skagit County | 130,789 | County in the state of Washington, United States |
