| Housing Unit Type 2000 | |||||
| Pennsylvania Counties | |||||
| Vacant Housing Units | |||||
| Total | Occupied | Total | Seasonal | ||
| Housing | Housing | Housing | Housing | ||
| Area | Units | Units | Units | Units | |
| Pennsylvania | 5,249,750 | 4,777,003 | 472,747 | 148,230 | |
| Adams County | 35,831 | 33,652 | 2,179 | 672 | |
| Allegheny County | 583,646 | 537,150 | 46,496 | 2,098 | |
| Armstrong County | 32,387 | 29,005 | 3,382 | 1,422 | |
| Beaver County | 77,765 | 72,576 | 5,189 | 344 | |
| Bedford County | 23,529 | 19,768 | 3,761 | 2,387 | |
| Berks County | 150,222 | 141,570 | 8,652 | 744 | |
| Blair County | 55,061 | 51,518 | 3,543 | 322 | |
| Bradford County | 28,664 | 24,453 | 4,211 | 2,620 | |
| Bucks County | 225,498 | 218,725 | 6,773 | 898 | |
| Butler County | 69,868 | 65,862 | 4,006 | 826 | |
| Cambria County | 65,796 | 60,531 | 5,265 | 626 | |
| Cameron County | 4,592 | 2,465 | 2,127 | 1,932 | |
| Carbon County | 30,492 | 23,701 | 6,791 | 4,757 | |
| Centre County | 53,161 | 49,323 | 3,838 | 1,536 | |
| Chester County | 163,773 | 157,905 | 5,868 | 571 | |
| Clarion County | 19,426 | 16,052 | 3,374 | 2,331 | |
| Clearfield County | 37,855 | 32,785 | 5,070 | 2,758 | |
| Clinton County | 18,166 | 14,773 | 3,393 | 2,557 | |
| Columbia County | 27,733 | 24,915 | 2,818 | 1,304 | |
| Crawford County | 42,416 | 34,678 | 7,738 | 4,964 | |
| Cumberland County | 86,951 | 83,015 | 3,936 | 379 | |
| Dauphin County | 111,133 | 102,670 | 8,463 | 570 | |
| Delaware County | 216,978 | 206,320 | 10,658 | 423 | |
| Elk County | 18,115 | 14,124 | 3,991 | 3,039 | |
| Erie County | 114,322 | 106,507 | 7,815 | 1,126 | |
| Fayette County | 66,490 | 59,969 | 6,521 | 1,486 | |
| Forest County | 8,701 | 2,000 | 6,701 | 6,560 | |
| Franklin County | 53,803 | 50,633 | 3,170 | 572 | |
| Fulton County | 6,790 | 5,660 | 1,130 | 628 | |
| Greene County | 16,678 | 15,060 | 1,618 | 417 | |
| Huntingdon County | 21,058 | 16,759 | 4,299 | 3,180 | |
| Indiana County | 37,250 | 34,123 | 3,127 | 644 | |
| Jefferson County | 22,104 | 18,375 | 3,729 | 2,404 | |
| Juniata County | 10,031 | 8,584 | 1,447 | 945 | |
| Lackawanna County | 95,362 | 86,218 | 9,144 | 1,915 | |
| Lancaster County | 179,990 | 172,560 | 7,430 | 808 | |
| Lawrence County | 39,635 | 37,091 | 2,544 | 302 | |
| Lebanon County | 49,320 | 46,551 | 2,769 | 458 | |
| Lehigh County | 128,910 | 121,906 | 7,004 | 398 | |
| Luzerne County | 144,686 | 130,687 | 13,999 | 2,517 | |
| Lycoming County | 52,464 | 47,003 | 5,461 | 2,522 | |
| McKean County | 21,644 | 18,024 | 3,620 | 2,234 | |
| Mercer County | 49,859 | 46,712 | 3,147 | 482 | |
| Mifflin County | 20,745 | 18,413 | 2,332 | 1,082 | |
| Monroe County | 67,581 | 49,454 | 18,127 | 14,705 | |
| Montgomery County | 297,434 | 286,098 | 11,336 | 1,038 | |
| Montour County | 7,627 | 7,085 | 542 | 82 | |
| Northampton County | 106,710 | 101,541 | 5,169 | 495 | |
| Northumberland County | 43,164 | 38,835 | 4,329 | 246 | |
| Perry County | 18,941 | 16,695 | 2,246 | 1,270 | |
| Philadelphia County | 661,958 | 590,071 | 71,887 | 1,790 | |
| Pike County | 34,681 | 17,433 | 17,248 | 15,350 | |
| Potter County | 12,159 | 7,005 | 5,154 | 4,711 | |
| Schuylkill County | 67,806 | 60,530 | 7,276 | 865 | |
| Snyder County | 14,890 | 13,654 | 1,236 | 495 | |
| Somerset County | 37,163 | 31,222 | 5,941 | 3,750 | |
| Sullivan County | 6,017 | 2,660 | 3,357 | 3,114 | |
| Susquehanna County | 21,829 | 16,529 | 5,300 | 3,924 | |
| Tioga County | 19,893 | 15,925 | 3,968 | 2,965 | |
| Union County | 14,684 | 13,178 | 1,506 | 904 | |
| Venango County | 26,904 | 22,747 | 4,157 | 2,586 | |
| Warren County | 23,058 | 17,696 | 5,362 | 4,125 | |
| Washington County | 87,267 | 81,130 | 6,137 | 324 | |
| Wayne County | 30,593 | 18,350 | 12,243 | 10,855 | |
| Westmoreland County | 161,058 | 149,813 | 11,245 | 1,614 | |
| Wyoming County | 12,713 | 10,762 | 1,951 | 1,316 | |
| York County | 156,720 | 148,219 | 8,501 | 946 | |