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
Tioga County	41 373	41 126	247	0.6
Bloss township	354	388	-  34	- 8.8
Blossburg borough	1 480	1 571	-  91	- 5.8
Brookfield township	443	432	11	2.5
Charleston township	3 233	2 957	276	9.3
Chatham township	587	607	-  20	- 3.3
Clymer township	597	597	0	0.0
Covington township	1 047	918	129	14.1
Deerfield township	659	647	12	1.9
Delmar township	2 893	3 048	-  155	- 5.1
Duncan township	213	248	-  35	- 14.1
Elk township	51	42	9	21.4
Elkland borough	1 786	1 849	-  63	- 3.4
Farmington township	636	644	-  8	- 1.2
Gaines township	553	601	-  48	- 8.0
Hamilton township	462	496	-  34	- 6.9
Jackson township	2 054	2 072	-  18	- 0.9
Knoxville borough	617	589	28	4.8
Lawrence township	1 721	1 519	202	13.3
Lawrenceville borough	627	481	146	30.4
Liberty borough	230	199	31	15.6
Liberty township	868	930	-  62	- 6.7
Mansfield borough	3 411	3 538	-  127	- 3.6
Middlebury township	1 221	1 244	-  23	- 1.8
Morris township	646	675	-  29	- 4.3
Nelson township	587	575	12	2.1
Osceola township	700	772	-  72	- 9.3
Putnam township	428	444	-  16	- 3.6
Richmond township	2 475	2 305	170	7.4
Roseville borough	207	230	-  23	- 10.0
Rutland township	736	646	90	13.9
Shippen township	472	508	-  36	- 7.1
Sullivan township	1 322	1 140	182	16.0
Tioga borough	622	638	-  16	- 2.5
Tioga township	995	1 019	-  24	- 2.4
Union township	945	931	14	1.5
Ward township	128	55	73	132.7
Wellsboro borough	3 328	3 430	-  102	- 3.0
Westfield borough	1 190	1 119	71	6.3
Westfield township	849	1 022	-  173	- 16.9
Source: U.S. Census Bureau	Prepared by: Pennsylvania State Data Center