| 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 |
| Union County | 41 624 | 33 258 | 41 053 | 37 496 | 2 878 | 67 | 443 | 17 | 152 | 571 | 1 622 |
| Buffalo township | 3 207 | 2 269 | 3 180 | 3 138 | 18 | 3 | 8 | 1 | 12 | 27 | 31 |
| East Buffalo township | 5 730 | 4 541 | 5 696 | 5 499 | 69 | 2 | 102 | 4 | 20 | 34 | 107 |
| Gregg township | 4 687 | 4 457 | 4 425 | 2 586 | 1 716 | 14 | 91 | 2 | 16 | 262 | 964 |
| Hartleton borough | 260 | 188 | 253 | 253 | 0 | 0 | 0 | 0 | 0 | 7 | 1 |
| Hartley township | 1 714 | 1 278 | 1 708 | 1 700 | 3 | 0 | 3 | 2 | 0 | 6 | 3 |
| Kelly township | 4 502 | 3 859 | 4 476 | 3 566 | 852 | 11 | 39 | 0 | 8 | 26 | 279 |
| Lewis township | 1 405 | 948 | 1 395 | 1 381 | 7 | 1 | 2 | 0 | 4 | 10 | 9 |
| Lewisburg borough | 5 620 | 5 058 | 5 522 | 5 146 | 147 | 10 | 157 | 6 | 56 | 98 | 131 |
| Limestone township | 1 572 | 1 107 | 1 561 | 1 553 | 6 | 1 | 1 | 0 | 0 | 11 | 3 |
| Mifflinburg borough | 3 594 | 2 686 | 3 568 | 3 528 | 16 | 3 | 8 | 1 | 12 | 26 | 27 |
| New Berlin borough | 838 | 605 | 832 | 825 | 2 | 0 | 0 | 0 | 5 | 6 | 8 |
| Union township | 1 427 | 1 077 | 1 420 | 1 385 | 4 | 15 | 14 | 1 | 1 | 7 | 2 |
| West Buffalo township | 2 795 | 1 939 | 2 777 | 2 742 | 12 | 7 | 9 | 0 | 7 | 18 | 27 |
| White Deer township | 4 273 | 3 246 | 4 240 | 4 194 | 26 | 0 | 9 | 0 | 11 | 33 | 30 |
| Source: US Census Bureau | Prepared by the Pennsylvania State Data Center | ||||||||||