Source Data:  2005 Population Estimates, U.S. Census Bureau
FIPS	Geography	Total Population by Age Group					White Alone by Age Group					Black Alone by Age Group					Asian Alone by Age Group					Native Hawaiian or Pacific Islander Alone by Age Group					All Other Races by Age Group					Hispanic by Age Group
		Total	<20	20-44	45-64	65+	Total	<20	20-44	45-64	65+	Total	<20	20-44	45-64	65+	Total	<20	20-44	45-64	65+	Total	<20	20-44	45-64	65+	Total	<20	20-44	45-64	65+	Total	<20	20-44	45-64	65+
19000	State of Iowa	2,966,334	756,930	1,014,069	760,115	435,220	2,816,321	700,756	951,701	735,978	427,886	69,141	24,672	28,391	12,142	3,936	9,905	3,621	4,068	1,885	331	44,297	12,134	22,649	7,471	2,043	26,670	15,747	7,260	2,639	1,024	108,968	42,712	49,802	13,143	3,311
19001	Adair County, Iowa	7,859	1,756	2,243	2,137	1,723	7,800	1,740	2,209	2,128	1,723	6	1	3	2	0	2	0	2	0	0	40	10	25	5	0	11	5	4	2	0	61	16	27	10	8
19003	Adams County, Iowa	4,264	981	1,155	1,185	943	4,231	963	1,144	1,181	943	1	1	0	0	0	22	14	6	2	0	10	3	5	2	0	0	0	0	0	0	27	12	8	5	2
19005	Allamakee County, Iowa	14,709	3,601	4,561	3,949	2,598	14,565	3,540	4,503	3,926	2,596	27	10	12	4	1	45	17	21	6	1	31	7	12	12	0	41	27	13	1	0	1,012	331	604	57	20
19007	Appanoose County, Iowa	13,666	3,251	4,236	3,597	2,582	13,462	3,182	4,143	3,570	2,567	89	29	34	14	12	8	3	4	1	0	60	15	38	6	1	47	22	17	6	2	146	70	52	15	9
19009	Audubon County, Iowa	6,457	1,582	1,655	1,773	1,447	6,411	1,556	1,637	1,771	1,447	10	7	3	0	0	4	0	4	0	0	15	9	5	1	0	17	10	6	1	0	37	14	18	3	2
19011	Benton County, Iowa	27,000	6,923	9,504	6,704	3,869	26,754	6,808	9,408	6,677	3,861	45	12	19	11	3	25	3	17	5	0	64	26	31	4	3	112	74	29	7	2	164	66	59	22	17
19013	Black Hawk County, Iowa	125,891	30,328	47,014	30,573	17,976	112,754	25,480	42,176	28,108	16,990	9,882	3,563	3,476	1,985	858	223	62	111	43	7	1,566	349	846	303	68	1,466	874	405	134	53	3,131	1,226	1,465	317	123
19015	Boone County, Iowa	26,602	6,432	8,883	7,117	4,170	26,225	6,291	8,715	7,061	4,158	184	68	94	20	2	48	16	15	14	3	86	18	52	12	4	59	39	7	10	3	264	118	107	31	8
19017	Bremer County, Iowa	23,677	5,872	7,611	6,296	3,898	23,290	5,714	7,435	6,254	3,887	124	46	66	9	3	22	4	16	2	0	138	45	64	23	6	103	63	30	8	2	171	59	75	28	9
19019	Buchanan County, Iowa	21,019	5,832	6,670	5,472	3,045	20,731	5,687	6,581	5,428	3,035	66	40	15	10	1	50	19	19	11	1	94	37	39	12	6	78	49	16	11	2	145	58	51	28	8
19021	Buena Vista County, Iowa	20,151	5,565	6,284	5,156	3,146	18,934	5,131	5,784	4,922	3,097	268	85	152	30	1	46	18	20	8	0	796	251	302	195	48	107	80	26	1	0	3,756	1,568	1,676	415	97
19023	Butler County, Iowa	15,072	3,494	4,363	4,311	2,904	14,963	3,429	4,331	4,304	2,899	20	13	5	1	1	4	0	3	1	0	37	15	16	4	2	48	37	8	1	2	101	40	37	15	9
19025	Calhoun County, Iowa	10,443	2,228	2,953	2,944	2,318	10,283	2,199	2,851	2,921	2,312	104	13	78	13	0	20	4	11	4	1	24	8	10	3	3	12	4	3	3	2	113	36	51	19	7
19027	Carroll County, Iowa	21,034	5,351	6,251	5,424	4,008	20,787	5,243	6,146	5,400	3,998	67	24	36	5	2	35	15	13	5	2	101	33	50	14	4	44	36	6	0	2	290	107	136	35	12
19029	Cass County, Iowa	14,219	3,181	4,099	3,920	3,019	14,078	3,136	4,038	3,895	3,009	32	13	10	6	3	11	1	5	4	1	66	17	40	6	3	32	14	6	9	3	155	46	84	19	6
19031	Cedar County, Iowa	18,254	4,380	5,780	5,241	2,853	17,993	4,269	5,678	5,201	2,845	66	26	32	5	3	37	7	16	13	1	69	17	37	14	1	89	61	17	8	3	223	77	101	38	7
19033	Cerro Gordo County, Iowa	44,645	10,697	13,695	12,399	7,854	43,314	10,111	13,182	12,225	7,796	466	191	188	65	22	91	19	51	18	3	377	121	165	65	26	397	255	109	26	7	1,337	484	507	217	129
19035	Cherokee County, Iowa	12,237	2,814	3,285	3,609	2,529	12,080	2,750	3,232	3,578	2,520	46	21	13	11	1	29	4	15	9	1	59	22	21	10	6	23	17	4	1	1	229	101	98	23	7
19037	Chickasaw County, Iowa	12,563	3,142	3,610	3,532	2,279	12,472	3,097	3,581	3,519	2,275	9	4	2	2	1	1	0	1	0	0	46	19	18	6	3	35	22	8	5	0	123	65	30	19	9
19039	Clarke County, Iowa	9,161	2,364	2,796	2,460	1,541	9,045	2,305	2,767	2,439	1,534	13	7	5	0	1	37	17	9	8	3	42	16	13	12	1	24	19	2	1	2	549	185	259	92	13
19041	Clay County, Iowa	16,897	3,983	5,238	4,563	3,113	16,654	3,878	5,150	4,523	3,103	35	17	13	5	0	13	2	9	2	0	149	56	55	29	9	46	30	11	4	1	329	89	210	25	5
19043	Clayton County, Iowa	18,337	4,389	5,382	5,124	3,442	18,192	4,318	5,328	5,105	3,441	30	14	8	8	0	50	16	27	7	0	25	10	10	4	1	40	31	9	0	0	170	49	101	13	7
19045	Clinton County, Iowa	49,717	12,424	15,894	13,442	7,957	47,665	11,621	15,167	13,034	7,843	1,098	382	426	225	65	144	41	67	34	2	295	85	104	87	19	515	295	130	62	28	800	313	355	104	28
19047	Crawford County, Iowa	16,889	4,554	5,114	4,482	2,739	16,503	4,372	4,959	4,450	2,722	197	90	98	7	2	80	46	26	8	0	85	27	28	15	15	24	19	3	2	0	2,827	1,013	1,510	266	38
19049	Dallas County, Iowa	51,762	13,210	22,057	11,851	4,644	49,916	12,644	21,047	11,618	4,607	586	157	328	88	13	98	30	50	17	1	783	181	481	102	19	379	198	151	26	4	3,022	1,147	1,480	358	37
19051	Davis County, Iowa	8,659	2,308	2,662	2,245	1,444	8,574	2,263	2,637	2,235	1,439	18	13	3	1	1	11	4	6	1	0	16	3	7	5	1	40	25	9	3	3	78	24	36	12	6
19053	Decatur County, Iowa	8,605	2,149	3,005	1,964	1,487	8,344	2,069	2,856	1,940	1,479	104	40	57	5	2	14	2	9	3	0	89	20	61	8	0	54	18	22	8	6	184	54	100	22	8
19055	Delaware County, Iowa	18,025	4,782	5,588	4,788	2,867	17,923	4,725	5,564	4,768	2,866	17	11	2	4	0	14	4	7	3	0	31	14	8	8	1	40	28	7	5	0	146	68	48	26	4
19057	Des Moines County, Iowa	40,810	10,216	12,266	11,542	6,786	38,383	9,233	11,437	11,090	6,623	1,546	564	540	330	112	122	33	58	25	6	303	91	118	61	33	456	295	113	36	12	958	365	412	142	39
19059	Dickinson County, Iowa	16,687	3,534	4,864	4,855	3,434	16,541	3,468	4,805	4,836	3,432	30	16	12	2	0	34	9	20	4	1	35	12	11	12	0	47	29	16	1	1	149	56	70	17	6
19061	Dubuque County, Iowa	91,631	24,217	30,121	23,498	13,795	88,749	22,976	28,895	23,169	13,709	1,196	488	565	131	12	123	43	46	26	8	804	230	423	109	42	759	480	192	63	24	1,418	478	737	161	42
19063	Emmet County, Iowa	10,534	2,675	3,113	2,782	1,964	10,402	2,615	3,058	2,771	1,958	29	11	16	0	2	45	19	18	8	0	44	17	20	3	4	14	13	1	0	0	525	247	196	70	12
19065	Fayette County, Iowa	21,298	5,109	6,507	5,642	4,040	20,911	4,994	6,271	5,608	4,038	164	46	106	12	0	25	3	18	4	0	123	27	83	11	2	75	39	29	7	0	322	113	128	55	26
19067	Floyd County, Iowa	16,443	3,981	4,796	4,478	3,188	16,138	3,861	4,664	4,432	3,181	96	29	53	13	1	15	1	10	4	0	109	29	53	22	5	85	61	16	7	1	266	106	97	52	11
19069	Franklin County, Iowa	10,732	2,602	3,079	3,004	2,047	10,609	2,540	3,027	2,997	2,045	12	10	2	0	0	26	9	15	2	0	64	24	34	5	1	21	19	1	0	1	1,132	425	539	143	25
19071	Fremont County, Iowa	7,759	1,904	2,129	2,213	1,513	7,675	1,875	2,094	2,194	1,512	7	4	0	3	0	19	5	11	3	0	33	6	16	10	1	25	14	8	3	0	183	66	76	35	6
19073	Greene County, Iowa	9,963	2,396	2,829	2,654	2,084	9,838	2,339	2,787	2,634	2,078	20	12	7	0	1	27	5	15	6	1	36	16	9	9	2	42	24	11	5	2	208	114	69	20	5
19075	Grundy County, Iowa	12,329	2,930	3,625	3,462	2,312	12,240	2,875	3,608	3,447	2,310	15	7	5	3	0	1	0	0	1	0	38	22	8	6	2	35	26	4	5	0	90	32	38	11	9
19077	Guthrie County, Iowa	11,547	2,660	3,604	3,133	2,150	11,484	2,621	3,589	3,125	2,149	17	11	4	1	1	0	0	0	0	0	10	2	7	1	0	36	26	4	6	0	224	88	111	20	5
19079	Hamilton County, Iowa	16,209	4,002	5,030	4,333	2,844	15,717	3,760	4,866	4,274	2,817	69	35	29	5	0	47	20	20	6	1	290	116	104	46	24	86	71	11	2	2	342	132	159	36	15
19081	Hancock County, Iowa	11,786	2,855	3,411	3,351	2,169	11,656	2,803	3,347	3,338	2,168	14	7	6	1	0	13	4	7	2	0	70	18	43	8	1	33	23	8	2	0	415	142	196	64	13
19083	Hardin County, Iowa	18,003	4,508	4,940	4,876	3,679	17,724	4,366	4,842	4,853	3,663	139	71	59	4	5	27	16	8	3	0	76	28	25	13	10	37	27	6	3	1	517	214	208	79	16
19085	Harrison County, Iowa	15,884	3,976	4,962	4,247	2,699	15,725	3,923	4,884	4,224	2,694	18	12	3	2	1	20	2	12	6	0	59	11	40	7	1	62	28	23	8	3	185	84	75	20	6
19087	Henry County, Iowa	20,246	4,866	7,159	5,240	2,981	19,247	4,561	6,649	5,092	2,945	362	82	241	34	5	62	15	36	11	0	445	120	204	91	30	130	88	29	12	1	376	122	211	34	9
19089	Howard County, Iowa	9,700	2,425	2,840	2,549	1,886	9,624	2,380	2,821	2,538	1,885	18	7	8	2	1	19	8	5	6	0	17	10	4	3	0	22	20	2	0	0	64	25	21	13	5
19091	Humboldt County, Iowa	9,973	2,352	2,740	2,847	2,034	9,847	2,318	2,661	2,836	2,032	40	7	33	0	0	6	3	3	0	0	53	13	29	9	2	27	11	14	2	0	232	58	154	14	6
19093	Ida County, Iowa	7,379	1,735	2,008	2,042	1,594	7,319	1,716	1,981	2,033	1,589	21	5	15	0	1	5	2	1	2	0	15	3	4	5	3	19	9	7	2	1	55	28	21	4	2
19095	Iowa County, Iowa	16,055	4,097	5,041	4,217	2,700	15,932	4,041	4,995	4,200	2,696	37	17	15	5	0	17	7	7	3	0	50	17	22	8	3	19	15	2	1	1	189	81	75	22	11
19097	Jackson County, Iowa	20,335	4,959	6,236	5,536	3,604	20,122	4,865	6,144	5,514	3,599	36	20	14	1	1	30	9	15	6	0	55	7	37	8	3	92	58	26	7	1	134	38	60	20	16
19099	Jasper County, Iowa	37,674	9,079	12,545	10,047	6,003	36,657	8,789	12,012	9,886	5,970	459	84	309	59	7	106	18	48	37	3	265	89	125	34	17	187	99	51	31	6	476	157	238	59	22
19101	Jefferson County, Iowa	15,972	3,507	4,767	5,545	2,153	15,432	3,372	4,496	5,426	2,138	152	34	82	27	9	29	6	16	7	0	282	54	149	73	6	77	41	24	12	0	350	124	152	63	11
19103	Johnson County, Iowa	117,067	27,978	56,471	23,178	9,440	105,979	24,489	50,344	21,953	9,193	3,920	1,289	2,081	479	71	352	99	181	59	13	5,197	1,254	3,251	567	125	1,619	847	614	120	38	3,434	1,197	1,804	356	77
19105	Jones County, Iowa	20,509	4,666	7,265	5,362	3,216	19,908	4,555	6,845	5,296	3,212	402	50	307	44	1	68	10	47	10	1	50	17	29	4	0	81	34	37	8	2	283	82	162	28	11
19107	Keokuk County, Iowa	11,157	2,774	3,257	3,014	2,112	11,077	2,745	3,230	2,999	2,103	13	8	4	0	1	12	4	4	4	0	38	5	17	8	8	17	12	2	3	0	76	40	24	8	4
19109	Kossuth County, Iowa	16,142	3,883	4,204	4,725	3,330	15,990	3,801	4,161	4,705	3,323	31	11	16	3	1	27	15	7	4	1	58	23	17	13	5	36	33	3	0	0	163	66	54	30	13
19111	Lee County, Iowa	36,705	8,871	10,956	10,813	6,065	34,919	8,331	10,267	10,388	5,933	1,133	270	467	298	98	62	14	22	25	1	234	49	115	52	18	357	207	85	50	15	940	294	315	219	112
19113	Linn County, Iowa	198,903	52,646	70,855	50,350	25,052	186,300	47,350	65,783	48,591	24,576	5,904	2,274	2,460	923	247	470	145	214	100	11	3,212	943	1,692	481	96	3,017	1,934	706	255	122	3,090	1,165	1,348	443	134
19115	Louisa County, Iowa	11,842	3,231	3,742	3,092	1,777	11,723	3,195	3,695	3,062	1,771	37	10	15	10	2	12	0	6	5	1	49	12	24	12	1	21	14	2	3	2	1,675	736	705	192	42
19117	Lucas County, Iowa	9,672	2,391	3,048	2,477	1,756	9,580	2,355	3,013	2,460	1,752	17	14	3	0	0	8	1	3	4	0	49	17	24	6	2	18	4	5	7	2	91	36	36	12	7
19119	Lyon County, Iowa	11,750	3,235	3,512	2,949	2,054	11,645	3,194	3,469	2,931	2,051	31	9	21	1	0	15	6	6	2	1	26	6	6	13	1	33	20	10	2	1	64	33	26	3	2
19121	Madison County, Iowa	15,158	3,967	5,084	4,021	2,086	14,992	3,888	5,029	3,994	2,081	23	9	8	5	1	45	19	16	9	1	32	10	17	4	1	66	41	14	9	2	134	56	55	15	8
19123	Mahaska County, Iowa	22,364	5,754	7,511	5,639	3,460	21,670	5,507	7,170	5,565	3,428	209	69	129	8	3	52	20	19	13	0	272	66	142	40	24	161	92	51	13	5	292	102	151	32	7
19125	Marion County, Iowa	32,984	8,486	11,020	8,268	5,210	32,280	8,207	10,792	8,114	5,167	154	41	45	51	17	67	23	25	17	2	335	120	132	64	19	148	95	26	22	5	360	126	176	52	6
19127	Marshall County, Iowa	39,418	10,215	12,039	10,832	6,332	37,999	9,615	11,513	10,613	6,258	468	168	209	71	20	186	61	80	34	11	401	140	150	78	33	364	231	87	36	10	5,022	2,195	2,221	500	106
19129	Mills County, Iowa	15,284	3,971	5,082	4,411	1,820	15,080	3,906	4,984	4,379	1,811	61	15	38	4	4	36	6	23	6	1	44	16	16	10	2	63	28	21	12	2	338	123	155	54	6
19131	Mitchell County, Iowa	10,919	2,830	2,946	2,858	2,285	10,867	2,800	2,937	2,847	2,283	19	11	4	3	1	8	1	4	2	1	20	14	1	5	0	5	4	0	1	0	65	30	21	7	7
19133	Monona County, Iowa	9,520	2,126	2,616	2,592	2,186	9,389	2,069	2,569	2,572