| Name | Status | Population census 1990-04-01 | Population census 2000-04-01 | Population census 2010-04-01 | |
|---|---|---|---|---|---|
| Washington | County | 62,254 | 63,242 | 61,778 | o |
| Ohio | Federal State | 10,847,115 | 11,353,336 | 11,536,504 |
| Name | Status | Population census 1990-04-01 | Population census 2000-04-01 | Population census 2010-04-01 | |
|---|---|---|---|---|---|
| Belpre | City | 6,924 | 6,660 | 6,441 | o |
| Beverly | Village | 1,449 | 1,282 | 1,313 | o |
| Devola | Census-Designated Place | 2,736 | 2,771 | 2,652 | o |
| Little Hocking | Census-Designated Place | ... | ... | 263 | o |
| Lowell | Village | 617 | 628 | 549 | o |
| Lower Salem | Village | 103 | 109 | 86 | o |
| Macksburg | Village | 218 | 202 | 186 | o |
| Marietta | City | 15,308 | 14,660 | 14,085 | o |
| Matamoras | Village | 1,018 | 957 | 896 | o |
| Newport | Census-Designated Place | ... | ... | 1,003 | o |
| Reno | Census-Designated Place | ... | ... | 1,293 | o |
| Vincent | Census-Designated Place | ... | ... | 339 | o |
| Waterford | Census-Designated Place | ... | ... | 450 | o |
Source: US Census Bureau (web).
2011-04-03WWW.CITYPOPULATION.DE