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
Montgomery County	750 097	678 111	71 986	10.6
Abington township	56 103	56 322	-  219	- 0.4
Ambler borough	6 426	6 609	-  183	- 2.8
Bridgeport borough	4 371	4 292	79	1.8
Bryn Athyn borough	1 351	1 081	270	25.0
Cheltenham township	36 875	34 923	1 952	5.6
Collegeville borough	8 032	4 227	3 805	90.0
Conshohocken borough	7 589	8 064	-  475	- 5.9
Douglass township	9 104	7 048	2 056	29.2
East Greenville borough	3 103	3 117	-  14	- 0.4
East Norriton township	13 211	13 324	-  113	- 0.8
Franconia township	11 523	7 224	4 299	59.5
Green Lane borough	584	442	142	32.1
Hatboro borough	7 393	7 382	11	0.1
Hatfield borough	2 605	2 650	-  45	- 1.7
Hatfield township	16 712	15 357	1 355	8.8
Horsham township	24 232	21 896	2 336	10.7
Jenkintown borough	4 478	4 574	-  96	- 2.1
Lansdale borough	16 071	16 362	-  291	- 1.8
Limerick township	13 534	6 691	6 843	102.3
Lower Frederick township	4 795	3 396	1 399	41.2
Lower Gwynedd township	10 422	9 958	464	4.7
Lower Merion township	59 850	58 003	1 847	3.2
Lower Moreland township	11 281	11 768	-  487	- 4.1
Lower Pottsgrove township	11 213	8 808	2 405	27.3
Lower Providence township	22 390	19 351	3 039	15.7
Lower Salford township	12 893	10 735	2 158	20.1
Marlborough township	3 104	3 116	-  12	- 0.4
Montgomery township	22 025	12 179	9 846	80.8
Narberth borough	4 233	4 278	-  45	- 1.1
New Hanover township	7 369	5 956	1 413	23.7
Norristown borough	31 282	30 749	533	1.7
North Wales borough	3 342	3 802	-  460	- 12.1
Pennsburg borough	2 732	2 460	272	11.1
Perkiomen township	7 093	3 200	3 893	121.7
Plymouth township	16 045	15 958	87	0.5
Pottstown borough	21 859	21 831	28	0.1
Red Hill borough	2 196	1 794	402	22.4
Rockledge borough	2 577	2 679	-  102	- 3.8
Royersford borough	4 246	4 458	-  212	- 4.8
Salford township	2 363	2 216	147	6.6
Schwenksville borough	1 693	1 326	367	27.7
Skippack township	6 516	8 790	- 2 274	- 25.9
Souderton borough	6 730	5 957	773	13.0
Springfield township	19 533	19 612	-  79	- 0.4
Telford borough	2 469	2 565	-  96	- 3.7
Towamencin township	17 597	14 167	3 430	24.2
Trappe borough	3 210	2 115	1 095	51.8
Upper Dublin township	25 878	24 028	1 850	7.7
Upper Frederick township	3 141	2 165	976	45.1
Upper Gwynedd township	14 243	12 197	2 046	16.8
Upper Hanover township	4 885	4 604	281	6.1
Upper Merion township	26 863	25 722	1 141	4.4
Upper Moreland township	24 993	25 313	-  320	- 1.3
Upper Pottsgrove township	4 102	3 315	787	23.7
Upper Providence township	15 398	9 682	5 716	59.0
Upper Salford township	3 024	2 719	305	11.2
West Conshohocken borough	1 446	1 294	152	11.7
West Norriton township	14 901	15 209	-  308	- 2.0
West Pottsgrove township	3 815	3 829	-  14	- 0.4
Whitemarsh township	16 702	14 863	1 839	12.4
Whitpain township	18 562	15 673	2 889	18.4
Worcester township	7 789	4 686	3 103	66.2
Source: U.S. Census Bureau	Prepared by: Pennsylvania State Data Center