| Name | Status | Population census 1990-04-01 | Population census 2000-04-01 | Population census 2010-04-01 | |
|---|---|---|---|---|---|
| Marion | County | 57,249 | 56,603 | 56,418 | o |
| West Virginia | Federal State | 1,793,477 | 1,808,193 | 1,852,994 |
| Name | Status | County | Population census 1990-04-01 | Population census 2000-04-01 | Population census 2010-04-01 | |
|---|---|---|---|---|---|---|
| Barrackville | Town | Marion | 1,365 | 1,287 | 1,302 | o |
| Carolina | Census-Designated Place | Marion | ... | ... | 411 | o |
| Fairmont | City | Marion | 21,667 | 19,461 | 18,704 | o |
| Fairview | Town | Marion | ... | 549 | 408 | o |
| Farmington | Town | Marion | 395 | 389 | 375 | o |
| Grant Town | Town | Marion | 611 | 657 | 613 | o |
| Idamay | Census-Designated Place | Marion | ... | ... | 611 | o |
| Mannington | City | Marion | 2,431 | 2,180 | 2,063 | o |
| Monongah | Town | Marion | ... | 1,270 | 1,044 | o |
| Pleasant Valley | City | Marion | ... | 3,076 | 3,149 | o |
| Rachel | Census-Designated Place | Marion | ... | ... | 248 | o |
| Rivesville | Town | Marion | 1,177 | 902 | 934 | o |
| White Hall | Town | Marion | 421 | 612 | 648 | o |
| Worthington | Town | Marion | 209 | 169 | 158 | o |
Source: US Census Bureau (web).
2000 and 2010 population of incorporated places in the boundaries of 2010.
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