| 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 |
| Butler County | 174 083 | 131 235 | 173 143 | 170 302 | 1 367 | 149 | 978 | 54 | 293 | 940 | 1 016 |
| Adams township | 6 774 | 4 748 | 6 743 | 6 613 | 54 | 2 | 58 | 1 | 15 | 31 | 53 |
| Allegheny township | 555 | 424 | 554 | 542 | 9 | 0 | 1 | 0 | 2 | 1 | 3 |
| Brady township | 1 452 | 1 007 | 1 443 | 1 439 | 1 | 2 | 0 | 0 | 1 | 9 | 7 |
| Bruin borough | 534 | 393 | 527 | 527 | 0 | 0 | 0 | 0 | 0 | 7 | 3 |
| Buffalo township | 6 827 | 5 127 | 6 808 | 6 763 | 16 | 8 | 20 | 0 | 1 | 19 | 15 |
| Butler city | 15 121 | 11 541 | 14 949 | 14 444 | 335 | 21 | 66 | 4 | 79 | 172 | 215 |
| Butler township | 17 185 | 13 630 | 17 104 | 16 904 | 92 | 9 | 78 | 9 | 12 | 81 | 67 |
| Callery borough | 444 | 309 | 440 | 440 | 0 | 0 | 0 | 0 | 0 | 4 | 0 |
| Center township | 8 182 | 6 380 | 8 147 | 8 040 | 36 | 3 | 47 | 1 | 20 | 35 | 28 |
| Cherry township | 1 053 | 782 | 1 048 | 1 036 | 5 | 1 | 3 | 3 | 0 | 5 | 6 |
| Cherry Valley borough | 72 | 56 | 72 | 72 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Chicora borough | 1 021 | 750 | 1 021 | 1 016 | 2 | 3 | 0 | 0 | 0 | 0 | 0 |
| Clay township | 2 628 | 1 933 | 2 617 | 2 604 | 6 | 0 | 3 | 0 | 4 | 11 | 21 |
| Clearfield township | 2 705 | 2 022 | 2 691 | 2 673 | 6 | 5 | 2 | 0 | 5 | 14 | 14 |
| Clinton township | 2 779 | 2 080 | 2 747 | 2 739 | 4 | 1 | 3 | 0 | 0 | 32 | 11 |
| Concord township | 1 493 | 1 125 | 1 484 | 1 483 | 1 | 0 | 0 | 0 | 0 | 9 | 0 |
| Connoquenessing borough | 564 | 403 | 562 | 560 | 1 | 1 | 0 | 0 | 0 | 2 | 8 |
| Connoquenessing township | 3 653 | 2 700 | 3 644 | 3 620 | 4 | 5 | 9 | 1 | 5 | 9 | 17 |
| Cranberry township | 23 625 | 16 376 | 23 463 | 22 869 | 208 | 15 | 320 | 5 | 46 | 162 | 166 |
| Donegal township | 1 722 | 1 270 | 1 719 | 1 711 | 5 | 1 | 1 | 0 | 1 | 3 | 9 |
| East Butler borough | 679 | 537 | 679 | 677 | 0 | 0 | 1 | 1 | 0 | 0 | 1 |
| Eau Claire borough | 355 | 261 | 355 | 353 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
| Evans City borough | 2 009 | 1 521 | 2 002 | 1 991 | 3 | 2 | 5 | 1 | 0 | 7 | 1 |
| Fairview borough | 220 | 162 | 219 | 217 | 1 | 1 | 0 | 0 | 0 | 1 | 0 |
| Fairview township | 2 061 | 1 518 | 2 058 | 2 050 | 4 | 2 | 2 | 0 | 0 | 3 | 4 |
| Forward township | 2 687 | 1 946 | 2 683 | 2 654 | 5 | 6 | 15 | 0 | 3 | 4 | 9 |
| Franklin township | 2 292 | 1 789 | 2 280 | 2 268 | 2 | 0 | 3 | 4 | 3 | 12 | 8 |
| Harmony borough | 937 | 751 | 936 | 929 | 5 | 2 | 0 | 0 | 0 | 1 | 6 |
| Harrisville borough | 883 | 702 | 881 | 867 | 5 | 1 | 1 | 0 | 7 | 2 | 1 |
| Jackson township | 3 645 | 2 824 | 3 625 | 3 573 | 33 | 3 | 10 | 0 | 6 | 20 | 11 |
| Jefferson township | 5 690 | 4 363 | 5 677 | 5 659 | 9 | 0 | 3 | 0 | 6 | 13 | 15 |
| Karns City borough | 244 | 179 | 244 | 243 | 1 | 0 | 0 | 0 | 0 | 0 | 1 |
| Lancaster township | 2 511 | 1 860 | 2 501 | 2 486 | 6 | 0 | 6 | 1 | 2 | 10 | 11 |
| Marion township | 1 330 | 997 | 1 326 | 1 310 | 8 | 3 | 1 | 4 | 0 | 4 | 3 |
| Mars borough | 1 746 | 1 422 | 1 742 | 1 723 | 8 | 1 | 7 | 1 | 2 | 4 | 7 |
| Mercer township | 1 183 | 919 | 1 177 | 1 171 | 6 | 0 | 0 | 0 | 0 | 6 | 7 |
| Middlesex township | 5 586 | 4 065 | 5 564 | 5 524 | 14 | 5 | 9 | 1 | 11 | 22 | 38 |
| Muddy Creek township | 2 267 | 1 713 | 2 255 | 2 233 | 4 | 8 | 7 | 1 | 2 | 12 | 10 |
| Oakland township | 3 074 | 2 278 | 3 071 | 3 060 | 3 | 5 | 3 | 0 | 0 | 3 | 2 |
| Parker township | 700 | 506 | 696 | 689 | 0 | 0 | 1 | 6 | 0 | 4 | 1 |
| Penn township | 5 210 | 3 869 | 5 193 | 5 145 | 13 | 3 | 28 | 2 | 2 | 17 | 22 |
| Petrolia borough | 218 | 172 | 218 | 218 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Portersville borough | 268 | 197 | 267 | 267 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| Prospect borough | 1 234 | 935 | 1 228 | 1 226 | 0 | 1 | 0 | 1 | 0 | 6 | 5 |
| Saxonburg borough | 1 629 | 1 355 | 1 627 | 1 618 | 4 | 0 | 0 | 0 | 5 | 2 | 25 |
| Seven Fields borough | 1 986 | 1 406 | 1 971 | 1 898 | 14 | 0 | 55 | 0 | 4 | 15 | 31 |
| Slippery Rock borough | 3 068 | 2 806 | 3 031 | 2 801 | 100 | 6 | 101 | 2 | 21 | 37 | 34 |
| Slippery Rock township | 5 251 | 4 631 | 5 204 | 5 017 | 120 | 3 | 57 | 0 | 7 | 47 | 38 |
| Summit township | 4 728 | 3 390 | 4 712 | 4 512 | 188 | 1 | 10 | 0 | 1 | 16 | 37 |
| Valencia borough | 384 | 307 | 382 | 377 | 2 | 0 | 0 | 3 | 0 | 2 | 0 |
| Venango township | 732 | 544 | 728 | 725 | 0 | 1 | 0 | 1 | 1 | 4 | 2 |
| Washington township | 1 419 | 1 016 | 1 416 | 1 402 | 1 | 9 | 3 | 0 | 1 | 3 | 11 |
| West Liberty borough | 325 | 246 | 324 | 323 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |
| West Sunbury borough | 104 | 76 | 104 | 104 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
| Winfield township | 3 585 | 2 685 | 3 574 | 3 552 | 6 | 6 | 3 | 1 | 6 | 11 | 10 |
| Worth township | 1 331 | 977 | 1 320 | 1 308 | 0 | 0 | 7 | 0 | 5 | 11 | 7 |
| Zelienople borough | 4 123 | 3 254 | 4 090 | 4 037 | 16 | 3 | 27 | 0 | 7 | 33 | 13 |
| Source: US Census Bureau | Prepared by the Pennsylvania State Data Center | ||||||||||