Washington
County in Iowa
County
The population development of Washington.
| Name | Status | Population Census 1990-04-01 | Population Census 2000-04-01 | Population Census 2010-04-01 | Population Census 2020-04-01 | |
|---|---|---|---|---|---|---|
| Washington | County | 19,612 | 20,670 | 21,704 | 22,565 | → |
| Iowa | State | 2,776,755 | 2,926,324 | 3,046,355 | 3,190,369 |
Contents: Places
The population development of the places in Washington.
icon links to further information about a selected place including its population structure (gender, age groups, age distribution, urbanization, »race«, ethnicity).| Name | Status | County | Population Census 1990-04-01 | Population Census 2000-04-01 | Population Census 2010-04-01 | Population Census 2020-04-01 | |
|---|---|---|---|---|---|---|---|
| Ainsworth | City | Washington | 510 | 523 | 567 | 509 | → |
| Brighton | City | Washington | 684 | 683 | 658 | 601 | → |
| Coppock | City | Washington / Henry / Jefferson | 50 | 51 | 47 | 39 | → |
| Crawfordsville | City | Washington | 265 | 292 | 264 | 278 | → |
| Kalona | City | Washington | 1,996 | 2,301 | 2,373 | 2,634 | → |
| Keota | City | Keokuk / Washington | 1,000 | 1,024 | 1,011 | 897 | → |
| Riverside | City | Washington | 824 | 941 | 992 | 1,058 | → |
| Washington | City | Washington | 7,148 | 7,087 | 7,270 | 7,357 | → |
| Wellman | City | Washington | 1,146 | 1,414 | 1,411 | 1,527 | → |
| West Chester | City | Washington | 178 | 162 | 146 | 146 | → |
Source: U.S. Census Bureau (web).
Explanation: Latest available rebased population figures are used. In case of significant changes, they were recalculated by using census block data.