Population by Age, Pennsylvania Counties:  July 1, 2004
Area	July 1, 2004 Total Population	Under 5 Years	Ages      5 - 13	Ages      14 - 17	Ages     18 - 24	Age 16+	Age 18+	Ages     15 - 44	Ages     45 - 64	Age 65+	Age 85+	Median Age	Median Age (Male)	Median Age (Female)
Pennsylvania	12,406,292	719,125	1,416,987	700,897	1,185,180	9,915,414	9,569,283	5,000,722	3,193,221	1,896,503	290,886	39.2	37.7	40.7
Adams	98,322	5,350	11,487	5,813	10,596	78,543	75,672	41,826	24,612	13,526	1,738	38	36.9	38.9
Allegheny	1,250,867	68,693	133,812	65,026	108,591	1,015,530	983,336	482,554	333,295	215,799	34,863	41.1	39.1	43
Armstrong	71,395	3,478	7,742	3,841	6,165	58,261	56,334	26,951	19,613	12,626	1,867	42.1	40.8	43.3
Beaver	178,601	9,141	19,484	9,752	15,532	145,068	140,224	66,029	48,771	32,763	4,483	42.4	40.9	43.8
Bedford	50,230	2,811	5,612	2,798	4,179	40,369	39,009	19,014	13,515	8,557	1,150	41	39.8	42.2
Berks	391,640	23,959	46,699	22,545	39,402	309,463	298,437	162,333	96,995	55,741	8,678	38	36.9	39.1
Blair	127,468	7,207	13,656	6,755	12,652	103,239	99,850	49,150	33,790	22,001	3,165	40.8	38.8	42.6
Bradford	62,569	3,580	7,428	3,868	5,366	49,627	47,693	23,561	16,971	10,038	1,523	40.7	39.5	41.7
Bucks	617,558	35,475	75,400	37,231	51,569	487,829	469,452	246,793	170,510	79,769	10,092	39.7	38.7	40.5
Butler	180,663	10,250	21,445	10,267	17,343	143,801	138,701	73,692	46,910	25,767	4,013	39.1	38.1	40
Cambria	148,496	7,337	14,667	7,520	14,843	122,756	118,972	56,094	40,131	28,432	4,644	42.4	40.3	44.5
Cameron	5,652	275	627	347	513	4,588	4,403	1,996	1,589	1,083	193	43.1	41.8	44.5
Carbon	61,194	3,006	6,269	3,410	5,227	50,199	48,509	24,215	16,067	10,771	1,579	41.1	39.7	42.4
Centre	140,476	6,092	11,652	5,637	26,781	119,865	117,095	79,202	27,075	15,009	2,000	29.2	28.8	29.9
Chester	465,795	29,651	58,183	28,288	42,684	363,517	349,673	191,711	124,040	54,993	7,129	38.2	37.2	39
Clarion	41,123	1,941	4,206	2,045	5,759	33,940	32,931	17,937	10,027	6,464	861	37.4	37	37.9
Clearfield	82,913	3,951	8,858	4,550	7,391	67,851	65,554	32,945	21,926	14,093	2,122	40.9	39.1	42.8
Clinton	37,486	2,051	3,821	1,898	4,854	30,688	29,716	15,701	9,288	6,161	865	38.3	37	39.6
Columbia	65,015	3,052	6,148	3,273	9,074	54,146	52,542	28,420	16,208	10,318	1,501	38.3	37.3	39.2
Crawford	89,890	5,313	10,304	5,203	9,330	71,657	69,070	35,147	23,696	14,115	2,134	39.4	38	40.8
Cumberland	221,397	11,199	23,427	11,423	24,472	181,106	175,348	92,555	58,250	33,035	4,483	39.4	37.9	40.8
Dauphin	253,282	15,846	30,235	14,382	20,287	199,968	192,819	99,619	67,988	35,870	5,124	39.4	38	40.7
Delaware	555,040	33,685	66,816	33,274	55,857	438,007	421,265	225,821	138,629	81,708	13,022	38.5	36.7	40.1
Elk	34,064	1,701	3,787	1,977	2,864	27,588	26,599	12,884	9,110	6,096	906	41.7	40.6	42.9
Erie	282,355	17,159	33,878	16,250	32,028	222,996	215,068	116,364	70,527	40,207	6,369	37.3	35.5	39.1
Fayette	145,651	7,608	16,028	7,823	12,350	118,043	114,192	54,629	39,403	25,944	4,252	41.6	39.7	43.2
Forest	4,994	170	409	512	429	4,233	3,903	1,847	1,392	1,090	130	44.8	41.2	47.9
Franklin	134,864	8,227	15,519	7,515	11,796	107,350	103,603	53,111	34,164	21,965	3,179	39.4	38.2	40.5
Fulton	14,641	810	1,716	853	1,213	11,683	11,262	5,703	3,934	2,262	297	39.8	38.9	40.8
Greene	40,133	1,909	4,233	2,081	4,199	32,964	31,910	16,713	10,812	5,947	993	39.2	37.2	41.9
Huntingdon	45,995	2,446	4,547	2,439	5,182	37,798	36,563	19,616	11,795	6,978	975	38.9	37.1	41.1
Indiana	89,062	4,099	8,461	4,303	13,220	74,323	72,199	39,828	22,061	13,505	2,086	37.1	36	38.2
Jefferson	45,952	2,462	4,976	2,572	4,275	37,226	35,942	17,546	12,072	8,251	1,336	41.3	39.8	42.8
Juniata	23,391	1,533	2,750	1,321	2,051	18,447	17,787	9,139	5,909	3,722	514	39.2	37.9	40.3
Lackawanna	209,932	10,633	21,941	11,182	20,278	171,702	166,176	81,302	54,376	38,834	6,932	41.3	39.3	43.1
Lancaster	487,332	33,667	62,698	29,553	47,468	375,711	361,414	196,229	118,057	69,059	10,549	37.1	35.7	38.4
Lawrence	93,374	5,028	10,360	5,201	8,928	75,419	72,785	34,508	24,694	17,505	2,787	41.7	39.7	43.5
Lebanon	124,489	7,424	14,097	6,775	11,561	99,483	96,193	48,778	32,059	20,312	2,962	39.8	38.5	41.1
Lehigh	326,050	19,899	38,206	18,560	29,063	258,487	249,385	130,839	82,640	49,608	8,199	39.1	37.7	40.5
Luzerne	313,431	15,031	31,422	16,499	28,748	258,839	250,479	121,637	82,706	58,511	10,271	41.8	39.7	43.8
Lycoming	118,542	6,394	12,756	6,626	13,182	96,063	92,766	47,594	30,942	19,172	2,969	39.8	37.9	41.5
McKean	44,708	2,351	5,031	2,524	4,154	36,086	34,802	17,618	11,602	7,491	1,208	40.2	38.3	42.1
Mercer	119,797	6,381	13,223	7,034	12,502	96,631	93,159	45,913	31,087	21,428	3,288	40.8	39.1	42.5
Mifflin	46,210	2,885	5,413	2,720	3,692	36,543	35,192	17,243	11,875	8,089	1,261	40.4	39	41.8
Monroe	158,925	8,559	20,265	10,635	16,775	124,740	119,466	68,740	40,097	18,504	2,102	37.3	36.3	38
Montgomery	774,029	47,385	91,032	43,590	61,398	613,386	592,022	307,076	203,258	114,132	17,232	39.7	38.4	40.9
Montour	18,069	1,049	2,028	1,142	1,410	14,455	13,850	6,672	4,815	3,238	447	41.7	40.3	42.8
Northampton	282,554	14,949	31,518	16,008	29,348	227,860	220,079	116,579	73,350	42,007	6,871	39.3	37.8	40.6
Northumberland	92,879	4,788	9,182	5,157	7,883	76,319	73,752	35,493	24,925	17,192	2,773	42	39.9	44.3
Perry	44,652	2,571	5,289	2,738	4,051	35,412	34,054	18,048	12,505	5,555	684	39.1	38.6	39.6
Philadelphia	1,470,151	104,890	180,494	87,158	150,711	1,139,956	1,097,609	634,546	332,258	195,041	32,932	35.1	33.1	37.1
Pike	54,117	2,340	6,911	3,689	4,648	42,942	41,177	21,810	14,243	7,858	786	39.9	39.4	40.4
Potter	17,950	1,056	2,190	1,149	1,543	14,178	13,555	6,681	4,728	3,030	406	40.5	39.4	41.5
Schuylkill	147,670	7,093	14,482	7,452	12,581	122,298	118,643	57,315	38,963	27,925	4,751	41.9	39.7	44.4
Snyder	38,112	2,180	4,164	2,282	4,599	30,600	29,486	16,116	9,587	5,468	765	38	37.1	38.8
Somerset	79,515	3,867	8,145	4,246	7,153	65,365	63,257	30,784	21,258	14,418	2,188	41.7	39.7	43.7
Sullivan	6,413	274	540	475	653	5,452	5,124	2,378	1,699	1,444	204	44.4	43.2	45.6
Susquehanna	42,047	2,200	4,922	2,657	3,808	33,621	32,268	15,948	11,645	6,670	929	41.1	40.1	42.1
Tioga	41,849	2,226	4,471	2,416	5,004	33,937	32,736	16,791	10,880	6,874	995	39.7	38.7	40.5
Union	42,720	2,016	3,913	2,064	6,247	35,756	34,727	20,481	9,928	5,876	1,000	36.5	35	39.1
Venango	56,285	2,928	6,227	3,530	4,869	45,367	43,600	20,881	15,793	9,564	1,239	41.9	40.4	43.3
Warren	42,576	2,243	4,748	2,526	3,507	34,315	33,059	15,271	12,387	7,299	995	42.5	41.3	43.7
Washington	205,738	10,500	22,242	10,684	18,468	167,604	162,312	77,904	56,887	35,513	5,602	41.8	40.2	43.2
Wayne	49,561	2,465	5,604	2,877	4,175	40,065	38,615	18,604	13,463	8,701	1,115	41.7	40.7	42.8
Westmoreland	368,660	17,446	38,647	19,931	30,443	302,542	292,636	135,763	104,752	66,996	9,678	42.9	41.3	44.4
Wyoming	28,168	1,535	3,267	1,722	2,796	22,482	21,644	11,109	7,857	3,930	576	39.7	38.5	40.8
York	401,613	23,405	47,277	23,303	35,460	319,129	307,628	163,425	106,830	54,653	7,924	39.2	38.2	40.1
Source:  U.S. Census Bureau, Population Estimates Division