| 2000 Census: Summary of Race and Hispanic or Latino Origin | |||||||||||
| Race | |||||||||||
| One Race | |||||||||||
| Geographic Area | Total Population | Total Population Over 18 | Total One Race | White | Black or African American | American Indian and Alaska Native | Asian | Native Hawaiian and Other Pacific Islander | Some other race | Two or more races | Hispanic or Latino (origin any race) |
| Pennsylvania | 12 281 054 | 9 358 833 | 12 138 830 | 10 484 203 | 1 224 612 | 18 348 | 219 813 | 3 417 | 188 437 | 142 224 | 394 088 |
| Clarion County | 41 765 | 32 730 | 41 548 | 40 998 | 329 | 45 | 142 | 2 | 32 | 217 | 172 |
| Ashland township | 1 081 | 784 | 1 068 | 1 056 | 0 | 0 | 9 | 0 | 3 | 13 | 1 |
| Beaver township | 1 753 | 1 359 | 1 749 | 1 747 | 0 | 2 | 0 | 0 | 0 | 4 | 4 |
| Brady township | 62 | 46 | 62 | 62 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Callensburg borough | 224 | 173 | 223 | 223 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
| Clarion borough | 6 185 | 5 638 | 6 138 | 5 848 | 215 | 5 | 61 | 0 | 9 | 47 | 51 |
| Clarion township | 3 273 | 2 576 | 3 243 | 3 176 | 54 | 2 | 7 | 0 | 4 | 30 | 13 |
| East Brady borough | 1 038 | 838 | 1 033 | 1 032 | 0 | 0 | 1 | 0 | 0 | 5 | 3 |
| Elk township | 1 519 | 1 163 | 1 507 | 1 504 | 0 | 1 | 2 | 0 | 0 | 12 | 2 |
| Emlenton borough | 10 | 6 | 10 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Farmington township | 1 986 | 1 551 | 1 983 | 1 974 | 4 | 3 | 2 | 0 | 0 | 3 | 3 |
| Foxburg borough | 275 | 207 | 275 | 275 | 0 | 0 | 0 | 0 | 0 | 0 | 5 |
| Hawthorn borough | 587 | 414 | 585 | 576 | 8 | 0 | 0 | 0 | 1 | 2 | 2 |
| Highland township | 633 | 479 | 626 | 615 | 6 | 3 | 2 | 0 | 0 | 7 | 0 |
| Knox borough | 1 176 | 909 | 1 173 | 1 164 | 0 | 7 | 2 | 0 | 0 | 3 | 10 |
| Knox township | 1 045 | 797 | 1 044 | 1 039 | 0 | 4 | 0 | 0 | 1 | 1 | 1 |
| Licking township | 479 | 361 | 476 | 475 | 1 | 0 | 0 | 0 | 0 | 3 | 0 |
| Limestone township | 1 773 | 1 334 | 1 769 | 1 766 | 1 | 0 | 2 | 0 | 0 | 4 | 0 |
| Madison township | 1 442 | 1 065 | 1 441 | 1 438 | 2 | 1 | 0 | 0 | 0 | 1 | 7 |
| Millcreek township | 415 | 337 | 411 | 409 | 2 | 0 | 0 | 0 | 0 | 4 | 0 |
| Monroe township | 1 587 | 1 199 | 1 582 | 1 576 | 0 | 2 | 2 | 0 | 2 | 5 | 6 |
| New Bethlehem borough | 1 057 | 856 | 1 052 | 1 041 | 8 | 1 | 1 | 0 | 1 | 5 | 6 |
| Paint township | 1 778 | 1 407 | 1 773 | 1 738 | 12 | 0 | 23 | 0 | 0 | 5 | 14 |
| Perry township | 1 064 | 805 | 1 057 | 1 055 | 0 | 1 | 1 | 0 | 0 | 7 | 3 |
| Piney township | 516 | 412 | 513 | 505 | 0 | 0 | 6 | 0 | 2 | 3 | 2 |
| Porter township | 1 466 | 1 107 | 1 460 | 1 453 | 0 | 3 | 3 | 0 | 1 | 6 | 4 |
| Redbank township | 1 502 | 1 143 | 1 491 | 1 483 | 1 | 0 | 7 | 0 | 0 | 11 | 5 |
| Richland township | 553 | 418 | 553 | 549 | 2 | 1 | 1 | 0 | 0 | 0 | 3 |
| Rimersburg borough | 1 051 | 795 | 1 048 | 1 045 | 1 | 2 | 0 | 0 | 0 | 3 | 1 |
| St. Petersburg borough | 405 | 296 | 403 | 402 | 0 | 0 | 0 | 0 | 1 | 2 | 2 |
| Salem township | 852 | 624 | 847 | 844 | 0 | 1 | 2 | 0 | 0 | 5 | 4 |
| Shippenville borough | 505 | 395 | 505 | 500 | 0 | 0 | 3 | 2 | 0 | 0 | 3 |
| Sligo borough | 728 | 528 | 722 | 709 | 0 | 5 | 1 | 0 | 7 | 6 | 8 |
| Strattanville borough | 542 | 416 | 537 | 530 | 5 | 0 | 2 | 0 | 0 | 5 | 0 |
| Toby township | 1 166 | 861 | 1 161 | 1 155 | 5 | 1 | 0 | 0 | 0 | 5 | 4 |
| Washington township | 2 037 | 1 431 | 2 028 | 2 024 | 2 | 0 | 2 | 0 | 0 | 9 | 3 |
| Source: US Census Bureau | Prepared by the Pennsylvania State Data Center | ||||||||||