| Population Change 1990-2000 | ||||
| County or Municipality | 2000 Population | 1990 Population | Population Change | Percent Change |
| Pennsylvania | 12 281 054 | 11 881 643 | 399 411 | 3.4 |
| Bradford County | 62 761 | 60 967 | 1 794 | 2.9 |
| Alba borough | 186 | 170 | 16 | 9.4 |
| Albany township | 927 | 927 | 0 | 0.0 |
| Armenia township | 166 | 134 | 32 | 23.9 |
| Asylum township | 1 097 | 981 | 116 | 11.8 |
| Athens borough | 3 415 | 3 468 | - 53 | - 1.5 |
| Athens township | 5 058 | 4 755 | 303 | 6.4 |
| Burlington borough | 182 | 479 | - 297 | - 62.0 |
| Burlington township | 799 | 705 | 94 | 13.3 |
| Canton borough | 1 807 | 1 966 | - 159 | - 8.1 |
| Canton township | 2 084 | 2 099 | - 15 | - 0.7 |
| Columbia township | 1 162 | 1 077 | 85 | 7.9 |
| Franklin township | 698 | 557 | 141 | 25.3 |
| Granville township | 873 | 837 | 36 | 4.3 |
| Herrick township | 676 | 647 | 29 | 4.5 |
| Le Raysville borough | 318 | 336 | - 18 | - 5.4 |
| Leroy township | 627 | 610 | 17 | 2.8 |
| Litchfield township | 1 307 | 1 296 | 11 | 0.8 |
| Monroe township | 514 | 540 | - 26 | -4.8 |
| Monroe borough | 1 271 | 1 235 | 36 | 2.9 |
| New Albany borough | 306 | 306 | 0 | 0.0 |
| North Towanda township | 927 | 909 | 18 | 2.0 |
| Orwell township | 1 097 | 1 107 | - 10 | - 0.9 |
| Overton township | 187 | 157 | 30 | 19.1 |
| Pike township | 657 | 684 | - 27 | - 3.9 |
| Ridgebury township | 1 982 | 2 026 | - 44 | - 2.2 |
| Rome borough | 382 | 475 | - 93 | - 19.6 |
| Rome township | 1 221 | 1 043 | 178 | 17.1 |
| Sayre borough | 5 813 | 5 791 | 22 | 0.4 |
| Sheshequin township | 1 300 | 1 211 | 89 | 7.3 |
| Smithfield township | 1 538 | 1 520 | 18 | 1.2 |
| South Creek township | 1 261 | 1 229 | 32 | 2.6 |
| South Waverly borough | 987 | 1 049 | - 62 | - 5.9 |
| Springfield township | 1 167 | 1 118 | 49 | 4.4 |
| Standing Stone township | 596 | 436 | 160 | 36.7 |
| Stevens township | 414 | 401 | 13 | 3.2 |
| Sylvania borough | 200 | 203 | - 3 | - 1.5 |
| Terry township | 942 | 871 | 71 | 8.2 |
| Towanda borough | 3 024 | 3 242 | - 218 | - 6.7 |
| Towanda township | 1 131 | 1 133 | - 2 | - 0.2 |
| Troy borough | 1 508 | 1 262 | 246 | 19.5 |
| Troy township | 1 645 | 1 797 | - 152 | - 8.5 |
| Tuscarora township | 1 072 | 996 | 76 | 7.6 |
| Ulster township | 1 340 | 1 295 | 45 | 3.5 |
| Warren township | 1 025 | 927 | 98 | 10.6 |
| Wells township | 1 278 | 1 018 | 260 | 25.5 |
| West Burlington township | 782 | 417 | 365 | 87.5 |
| Wilmot township | 1 177 | 1 057 | 120 | 11.4 |
| Windham township | 967 | 862 | 105 | 12.2 |
| Wyalusing borough | 564 | 686 | - 122 | - 17.8 |
| Wyalusing township | 1 341 | 1 235 | 106 | 8.6 |
| Wysox township | 1 763 | 1 685 | 78 | 4.6 |
| Source: U.S. Census Bureau | Prepared by: Pennsylvania State Data Center | |||