| 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 |
| |
|
|
|
|
| Westmoreland County |
369 993 |
370 321 |
- 328 |
- 0.1 |
| Adamsburg borough |
221 |
257 |
- 36 |
- 14.0 |
| Allegheny township |
8 002 |
7 895 |
107 |
1.4 |
| Arnold city |
5 667 |
6 113 |
- 446 |
- 7.3 |
| Arona borough |
407 |
397 |
10 |
2.5 |
| Avonmore borough |
820 |
1 089 |
- 269 |
- 24.7 |
| Bell township |
2 458 |
2 353 |
105 |
4.5 |
| Bolivar borough |
501 |
544 |
- 43 |
- 7.9 |
| Cook township |
2 403 |
2 033 |
370 |
18.2 |
| Delmont borough |
2 497 |
2 041 |
456 |
22.3 |
| Derry borough |
2 991 |
2 950 |
41 |
1.4 |
| Derry township |
14 726 |
15 446 |
- 720 |
- 4.7 |
| Donegal borough |
165 |
212 |
- 47 |
- 22.2 |
| Donegal township |
2 442 |
2 419 |
23 |
1.0 |
| East Huntingdon township |
7 781 |
7 708 |
73 |
0.9 |
| East Vandergrift borough |
742 |
787 |
- 45 |
- 5.7 |
| Export borough |
895 |
981 |
- 86 |
- 8.8 |
| Fairfield township |
2 536 |
2 276 |
260 |
11.4 |
| Greensburg city |
15 889 |
16 318 |
- 429 |
- 2.6 |
| Hempfield township |
40 721 |
42 609 |
- 1
888 |
- 4.4 |
| Hunker borough |
329 |
328 |
1 |
0.3 |
| Hyde Park borough |
513 |
542 |
- 29 |
- 5.4 |
| Irwin borough |
4 366 |
4 604 |
- 238 |
- 5.2 |
| Jeannette city |
10 654 |
11 221 |
- 567 |
- 5.1 |
| Latrobe borough |
8 994 |
9 265 |
- 271 |
- 2.9 |
| Laurel Mountain borough |
185 |
195 |
- 10 |
- 5.1 |
| Ligonier borough |
1 695 |
1 638 |
57 |
3.5 |
| Ligonier township |
6 973 |
6 979 |
- 6 |
- 0.1 |
| Lower Burrell city |
12 608 |
12 251 |
357 |
2.9 |
| Loyalhanna township |
2 301 |
2 171 |
130 |
6.0 |
| Madison borough |
510 |
539 |
- 29 |
- 5.4 |
| Manor borough |
2 796 |
2 627 |
169 |
6.4 |
| Monessen city |
8 669 |
9 901 |
- 1
232 |
- 12.4 |
| Mount Pleasant borough |
4 728 |
4 787 |
- 59 |
- 1.2 |
| Mount Pleasant township |
11 153 |
11 341 |
- 188 |
- 1.7 |
| Municipality of Murrysville
Borough |
18 872 |
17 240 |
1 632 |
9.5 |
| New Alexandria borough |
595 |
571 |
24 |
4.2 |
| New Florence borough |
784 |
854 |
- 70 |
- 8.2 |
| New Kensington city |
14 701 |
15 894 |
- 1
193 |
- 7.5 |
| New Stanton borough |
1 906 |
2 081 |
- 175 |
- 8.4 |
| North Belle Vernon borough |
2 107 |
2 112 |
- 5 |
- 0.2 |
| North Huntingdon township |
29 123 |
28 158 |
965 |
3.4 |
| North Irwin borough |
879 |
956 |
- 77 |
- 8.1 |
| Oklahoma borough |
915 |
977 |
- 62 |
- 6.3 |
| Penn borough |
460 |
511 |
- 51 |
- 10.0 |
| Penn township |
19 591 |
15 945 |
3 646 |
22.9 |
| Rostraver township |
11 634 |
11 224 |
410 |
3.7 |
| St. Clair township |
1 398 |
1 603 |
- 205 |
- 12.8 |
| Salem township |
6 939 |
7 282 |
- 343 |
- 4.7 |
| Scottdale borough |
4 772 |
5 184 |
- 412 |
- 7.9 |
| Seward borough |
484 |
522 |
- 38 |
- 7.3 |
| Sewickley township |
6 230 |
6 642 |
- 412 |
- 6.2 |
| Smithton borough |
444 |
388 |
56 |
14.4 |
| South Greensburg borough |
2 280 |
2 293 |
- 13 |
- 0.6 |
| South Huntingdon township |
6 175 |
6 352 |
- 177 |
- 2.8 |
| Southwest Greensburg borough |
2 398 |
2 456 |
- 58 |
- 2.4 |
| Sutersville borough |
636 |
755 |
- 119 |
- 15.8 |
| Trafford borough |
3 205 |
3 255 |
- 50 |
- 1.5 |
| Unity township |
21 137 |
20 109 |
1 028 |
5.1 |
| Upper Burrell township |
2 240 |
2 258 |
- 18 |
- 0.8 |
| Vandergrift borough |
5 455 |
5 904 |
- 449 |
- 7.6 |
| Washington township |
7 384 |
7 725 |
- 341 |
- 4.4 |
| West Leechburg borough |
1 290 |
1 359 |
- 69 |
- 5.1 |
| West Newton borough |
3 083 |
3 152 |
- 69 |
- 2.2 |
| Youngstown borough |
400 |
370 |
30 |
8.1 |
| Youngwood borough |
4 138 |
3 372 |
766 |
22.7 |
|
| Source: U.S. Census Bureau |
Prepared by: Pennsylvania
State Data Center |
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