Clark
County in Illinois
County
The population development of Clark.
| Name | Status | Population Census 1990-04-01 | Population Census 2000-04-01 | Population Census 2010-04-01 | Population Census 2020-04-01 | |
|---|---|---|---|---|---|---|
| Clark | County | 15,921 | 17,008 | 16,335 | 15,463 | → |
| Illinois | State | 11,430,602 | 12,419,293 | 12,830,632 | 12,813,469 |
Contents: Places
The population development of the places in Clark.
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 | |
|---|---|---|---|---|---|---|---|
| Casey | City | Clark / Cumberland | 2,916 | 2,943 | 2,784 | 2,411 | → |
| Marshall | City | Clark | 3,626 | 3,979 | 3,950 | 3,961 | → |
| Martinsville | City | Clark | 1,215 | 1,218 | 1,166 | 1,115 | → |
| West Union | Census-Designated Place | Clark | 210 | 176 | 288 | 271 | → |
| Westfield | Village | Clark | 676 | 678 | 601 | 536 | → |
Source: U.S. Census Bureau.
Explanation: Latest available rebased population figures are used. In case of significant changes, they were recalculated by using census block data.