Top Ten Pennsylvania Municipalities Experiencing the Fastest Population Growth (Percent Increase), 2004-2005
Municipality	April 1, 2000 Estimates Base	July 1, 2004 Estimate	July 1, 2005 Estimate	Numeric Change 2000 Estimate Base to July 1, 2005	Percent Change 2000 Estimate Base to July 1, 2005	Numeric Change July 1, 2004 to July 1, 2005	Percent Change July 1, 2004 to July 1, 2005
East Caln township	2,857	3,164	4,232	1,375	48.1	1,068	33.8
East Coventry township	4,566	4,880	5,698	1,132	24.8	818	16.8
Ivyland borough	492	696	804	312	63.4	108	15.5
Penn township	2,812	4,158	4,708	1,896	67.4	550	13.2
Springfield township	3,889	4,195	4,708	819	21.1	513	12.2
Allen township	2,630	3,278	3,660	1,030	39.2	382	11.7
Crescent township	2,314	2,505	2,741	427	18.5	236	9.4
Ohio township	3,086	3,543	3,858	772	25.0	315	8.9
East Manchester township	5,078	6,065	6,597	1,519	29.9	532	8.8
London Grove township	5,265	5,747	6,248	983	18.7	501	8.7