2000  Age Groups
Pennsylvania Counties
		AGE
Area	Median Age	Under 5	5 - 17	18 - 64	65+	85+
Pennsylvania	38.0	727,804	2,194,417	7,439,668	1,919,165	237,567
Adams County	37.0	5,405	17,359	55,872	12,656	1,556
Allegheny County	39.6	71,081	210,095	772,074	228,416	28,143
Armstrong County	40.4	3,913	12,661	42,765	13,053	1,530
Beaver County	40.7	9,860	31,202	106,926	33,424	3,499
Bedford County	39.5	3,004	8,770	29,967	8,243	840
Berks County	37.4	23,032	68,877	225,539	56,190	7,260
Blair County	39.5	7,257	22,025	77,406	22,456	2,850
Bradford County	38.9	3,804	12,218	36,874	9,865	1,205
Bucks County	37.7	38,288	115,198	370,055	74,094	8,223
Butler County	37.6	11,141	31,707	106,414	24,821	3,506
Cambria County	41.2	7,669	24,406	90,436	30,087	3,606
Cameron County	41.3	288	1,176	3,330	1,180	162
Carbon County	40.6	3,025	10,004	34,907	10,866	1,194
Centre County	28.7	6,273	18,193	97,215	14,077	1,639
Chester County	36.9	29,330	84,252	269,242	50,677	5,767
Clarion County	36.3	2,267	6,768	26,394	6,336	744
Clearfield County	39.3	4,563	14,359	50,366	14,094	1,736
Clinton County	37.8	2,055	6,088	23,408	6,363	688
Columbia County	37.5	3,154	10,198	40,597	10,202	1,183
Crawford County	38.1	5,366	16,954	53,994	14,052	1,785
Cumberland County	38.1	11,662	35,323	134,935	31,754	3,920
Dauphin County	37.9	15,490	45,623	154,841	35,844	4,243
Delaware County	37.4	34,394	102,439	328,362	85,669	10,868
Elk County	39.4	2,008	6,435	20,596	6,073	725
Erie County	36.2	17,440	52,871	170,276	40,256	4,892
Fayette County	40.2	8,454	25,280	87,980	26,930	3,197
Forest County	44.2	178	943	2,840	985	83
Franklin County	38.3	8,087	22,965	77,510	20,751	2,452
Fulton County	38.2	898	2,609	8,686	2,068	207
Greene County	38.2	2,098	6,881	25,500	6,193	811
Huntingdon County	37.7	2,481	7,412	28,945	6,748	758
Indiana County	36.2	4,424	14,441	57,417	13,323	1,627
Jefferson County	39.8	2,542	8,277	26,887	8,226	1,074
Juniata County	37.7	1,491	4,212	13,647	3,471	450
Lackawanna County	40.3	11,213	35,214	125,326	41,542	5,698
Lancaster County	36.1	32,680	92,611	279,307	66,060	8,965
Lawrence County	40.5	5,305	16,575	54,540	18,223	2,228
Lebanon County	38.7	7,360	21,156	72,115	19,696	2,692
Lehigh County	38.3	18,762	55,922	187,972	49,434	6,734
Luzerne County	40.8	15,811	51,255	189,444	62,740	8,481
Lycoming County	38.4	6,601	21,376	72,816	19,251	2,393
McKean County	38.7	2,620	8,278	27,375	7,663	1,041
Mercer County	39.6	6,915	21,269	70,369	21,740	2,638
Mifflin County	38.8	2,926	8,525	27,128	7,907	978
Monroe County	37.2	8,280	28,848	84,523	17,036	1,571
Montgomery County	38.2	47,290	133,855	457,155	111,797	14,717
Montour County	39.8	1,036	3,410	10,670	3,120	482
Northampton County	38.5	14,862	47,405	162,769	42,030	5,230
Northumberland County	40.8	4,803	15,896	55,855	18,002	2,325
Perry County	37.5	2,664	8,466	27,127	5,345	542
Philadelphia County	34.2	98,161	285,308	920,359	213,722	27,339
Pike County	39.6	2,723	9,629	26,933	7,017	541
Potter County	39.1	1,112	3,585	10,369	3,014	367
Schuylkill County	40.9	7,357	23,994	89,119	29,866	3,876
Snyder County	36.7	2,098	6,916	23,257	5,275	583
Somerset County	40.2	4,201	13,642	47,744	14,436	1,797
Sullivan County	43.0	281	1,085	3,756	1,434	188
Susquehanna County	39.5	2,400	8,364	24,928	6,546	776
Tioga County	38.5	2,234	7,578	24,953	6,608	780
Union County	35.8	2,005	6,361	27,674	5,584	829
Venango County	40.2	3,268	10,679	33,961	9,657	1,067
Warren County	40.5	2,480	8,107	25,964	7,312	849
Washington County	40.8	11,235	33,762	121,577	36,323	4,251
Wayne County	40.8	2,677	8,770	27,923	8,352	1,013
Westmoreland County	41.3	19,175	62,055	220,982	67,781	7,637
Wyoming County	37.8	1,627	5,537	17,199	3,717	429
York County	37.8	23,220	70,763	236,276	51,492	6,107