Annual Estimates of the Population for Counties of Iowa

Annual Estimates of the Population for Counties of Iowa: April 1, 2000 to July 1, 2006
Geographic Area	Population Estimates							April 1, 2000
Geographic Area	July 1, 2006	July 1, 2005	July 1, 2004	July 1, 2003	July 1, 2002	July 1, 2001	July 1, 2000	Estimates Base	Census
Iowa	2,982,085	2,965,524	2,953,679	2,942,070	2,935,295	2,932,151	2,928,703	2,926,382	2,926,324
Adair County	7,714	7,795	7,875	7,961	8,003	8,095	8,212	8,243	8,243
Adams County	4,192	4,223	4,307	4,371	4,386	4,415	4,479	4,482	4,482
Allamakee County	14,796	14,782	14,699	14,600	14,452	14,413	14,682	14,675	14,675
Appanoose County	13,422	13,584	13,617	13,616	13,451	13,622	13,704	13,721	13,721
Audubon County	6,278	6,363	6,465	6,487	6,587	6,663	6,810	6,830	6,830
Benton County	26,962	26,944	26,780	26,368	26,159	25,729	25,345	25,308	25,308
Black Hawk County	126,106	125,960	125,701	125,753	126,456	127,481	127,919	128,013	128,012
Boone County	26,584	26,495	26,397	26,240	26,093	26,247	26,257	26,224	26,224
Bremer County	23,837	23,590	23,492	23,374	23,271	23,429	23,295	23,325	23,325
Buchanan County	21,045	21,021	21,037	20,910	20,855	20,957	21,081	21,093	21,093
Buena Vista County	20,091	20,103	20,154	20,260	20,300	20,240	20,368	20,409	20,411
Butler County	15,073	15,045	15,027	15,006	15,015	15,156	15,319	15,305	15,305
Calhoun County	10,437	10,482	10,540	10,652	10,812	11,001	11,088	11,115	11,115
Carroll County	20,963	21,015	21,015	21,062	21,162	21,193	21,366	21,421	21,421
Cass County	14,124	14,161	14,255	14,367	14,310	14,573	14,684	14,684	14,684
Cedar County	18,326	18,240	18,233	18,239	18,171	18,120	18,220	18,187	18,187
Cerro Gordo County	44,384	44,594	44,794	45,235	45,330	45,733	46,338	46,447	46,447
Cherokee County	12,094	12,245	12,411	12,529	12,676	12,925	13,019	13,037	13,035
Chickasaw County	12,412	12,472	12,607	12,687	12,858	13,087	13,073	13,095	13,095
Clarke County	9,156	9,118	9,239	9,216	9,158	9,164	9,196	9,133	9,133
Clay County	16,801	16,838	16,931	16,976	17,075	17,283	17,386	17,372	17,372
Clayton County	18,251	18,224	18,332	18,340	18,379	18,532	18,623	18,678	18,678
Clinton County	49,782	49,744	49,787	49,782	49,829	49,950	50,081	50,149	50,149
Crawford County	16,948	16,888	16,879	16,904	16,993	16,961	16,937	16,942	16,942
Dallas County	54,525	51,879	49,526	46,519	44,458	42,764	41,087	40,773	40,750
Davis County	8,602	8,597	8,665	8,575	8,624	8,633	8,552	8,541	8,541
Decatur County	8,656	8,645	8,613	8,581	8,630	8,698	8,684	8,689	8,689
Delaware County	17,848	17,938	18,077	18,188	18,293	18,296	18,397	18,404	18,404
Des Moines County	40,885	40,975	41,033	41,440	41,431	41,960	42,294	42,351	42,351
Dickinson County	16,924	16,746	16,583	16,414	16,413	16,479	16,469	16,424	16,424
Dubuque County	92,384	91,603	91,223	90,635	89,571	89,216	89,265	89,156	89,143
Emmet County	10,479	10,536	10,602	10,729	10,825	10,890	10,995	11,027	11,027
Fayette County	20,996	21,195	21,233	21,458	21,544	21,723	22,002	22,008	22,008
Floyd County	16,441	16,453	16,517	16,572	16,616	16,642	16,864	16,900	16,900
Franklin County	10,708	10,759	10,730	10,672	10,684	10,654	10,689	10,704	10,704
Fremont County	7,737	7,698	7,736	7,819	7,838	7,916	8,001	8,010	8,010
Greene County	9,809	9,962	10,070	10,104	10,178	10,172	10,345	10,366	10,366
Grundy County	12,320	12,307	12,368	12,314	12,348	12,311	12,374	12,369	12,369
Guthrie County	11,344	11,419	11,524	11,466	11,313	11,292	11,352	11,353	11,353
Hamilton County	16,087	16,223	16,226	16,304	16,305	16,269	16,426	16,438	16,438
Hancock County	11,680	11,758	11,794	11,861	11,832	11,950	12,105	12,100	12,100
Hardin County	17,791	17,925	18,109	18,265	18,429	18,625	18,823	18,812	18,812
Harrison County	15,745	15,759	15,770	15,706	15,564	15,697	15,706	15,666	15,666
Henry County	20,405	20,379	20,228	20,262	20,093	20,350	20,304	20,336	20,336
Howard County	9,677	9,721	9,784	9,792	9,854	9,895	9,916	9,932	9,932
Humboldt County	9,975	10,001	10,083	10,114	10,136	10,325	10,373	10,381	10,381
Ida County	7,180	7,342	7,417	7,508	7,614	7,690	7,807	7,837	7,837
Iowa County	16,140	16,054	15,958	15,946	15,818	15,831	15,717	15,671	15,671
Jackson County	20,290	20,243	20,217	20,212	20,240	20,337	20,312	20,296	20,296
Jasper County	37,409	37,538	37,644	37,690	37,591	37,451	37,253	37,213	37,213
Jefferson County	15,945	16,000	16,038	16,000	15,963	16,110	16,168	16,181	16,181
Johnson County	118,038	117,194	116,401	114,975	113,936	112,926	111,283	111,006	111,006
Jones County	20,505	20,495	20,527	20,374	20,268	20,191	20,217	20,221	20,221
Keokuk County	11,081	11,121	11,225	11,329	11,408	11,380	11,426	11,400	11,400
Kossuth County	16,011	16,181	16,323	16,433	16,593	16,814	17,133	17,163	17,163
Lee County	36,338	36,519	36,697	36,701	36,982	37,497	37,941	38,052	38,052
Linn County	201,853	199,553	197,555	196,224	195,416	194,011	192,257	191,701	191,701
Louisa County	11,858	11,813	12,029	12,212	12,219	12,214	12,172	12,183	12,183
Lucas County	9,543	9,627	9,665	9,494	9,452	9,445	9,411	9,422	9,422
Lyon County	11,636	11,690	11,725	11,709	11,694	11,668	11,751	11,763	11,763
Madison County	15,547	15,148	14,904	14,575	14,417	14,192	14,065	14,019	14,019
Mahaska County	22,298	22,309	22,112	22,051	22,350	22,380	22,309	22,335	22,335
Marion County	32,987	32,738	32,610	32,522	32,561	32,581	32,121	32,054	32,052
Marshall County	39,555	39,572	39,571	39,315	39,246	39,345	39,330	39,311	39,311
Mills County	15,595	15,255	14,973	14,851	14,723	14,586	14,575	14,547	14,547
Mitchell County	10,856	10,872	10,933	10,857	10,861	10,747	10,871	10,874	10,874
Monona County	9,343	9,504	9,652	9,795	9,757	9,861	10,005	10,020	10,020
Monroe County	7,725	7,798	7,826	7,850	7,800	7,925	7,996	8,016	8,016
Montgomery County	11,365	11,364	11,314	11,306	11,363	11,536	11,792	11,771	11,771
Muscatine County	42,883	42,567	42,334	42,089	42,075	41,939	41,803	41,722	41,722
O'Brien County	14,409	14,410	14,483	14,717	14,754	14,916	15,065	15,102	15,102
Osceola County	6,629	6,648	6,760	6,802	6,839	6,945	6,984	7,003	7,003
Page County	16,263	16,291	16,229	16,326	16,493	16,889	16,927	16,976	16,976
Palo Alto County	9,549	9,669	9,758	9,740	9,886	10,042	10,142	10,147	10,147
Plymouth County	24,906	24,880	24,931	24,769	24,661	24,859	24,868	24,849	24,849
Pocahontas County	7,794	7,931	8,074	8,232	8,387	8,513	8,614	8,662	8,662
Polk County	408,888	401,755	394,211	389,862	385,479	380,625	375,832	374,582	374,601
Pottawattamie County	90,218	89,673	89,261	88,366	88,116	87,765	87,989	87,803	87,704
Poweshiek County	19,007	18,923	18,995	18,946	18,854	18,898	18,845	18,832	18,815
Ringgold County	5,289	5,255	5,333	5,346	5,332	5,423	5,465	5,469	5,469
Sac County	10,682	10,651	10,815	10,892	11,056	11,365	11,476	11,529	11,529
Scott County	162,621	161,170	160,105	159,349	159,111	158,778	158,744	158,689	158,668
Shelby County	12,489	12,566	12,753	12,821	12,893	13,020	13,082	13,074	13,173
Sioux County	32,525	32,332	32,203	31,997	31,974	31,860	31,579	31,589	31,589
Story County	80,145	79,787	80,296	80,331	80,784	79,602	80,041	79,981	79,981
Tama County	17,890	17,937	17,962	17,850	17,914	18,020	18,086	18,103	18,103
Taylor County	6,540	6,553	6,660	6,750	6,827	6,869	6,988	6,958	6,958
Union County	12,093	11,978	11,974	11,933	12,148	12,239	12,283	12,309	12,309
Van Buren County	7,836	7,732	7,739	7,732	7,801	7,743	7,823	7,809	7,809
Wapello County	36,010	35,976	35,768	35,844	35,921	36,027	36,011	36,051	36,051
Warren County	43,926	43,165	42,408	42,093	41,426	41,104	40,804	40,671	40,671
Washington County	21,529	21,372	21,307	21,197	21,136	21,052	20,721	20,670	20,670
Wayne County	6,542	6,548	6,591	6,630	6,652	6,660	6,736	6,730	6,730
Webster County	38,960	38,963	39,186	39,572	39,812	40,116	40,199	40,235	40,235
Winnebago County	11,216	11,360	11,376	11,424	11,427	11,576	11,760	11,723	11,723
Winneshiek County	21,263	21,224	21,187	21,159	21,306	21,345	21,307	21,310	21,310
Woodbury County	102,972	102,518	103,191	103,132	103,447	103,535	103,876	103,877	103,877
Worth County	7,698	7,755	7,728	7,726	7,793	7,832	7,911	7,909	7,909
Wright County	13,419	13,601	13,677	13,789	13,959	14,150	14,325	14,334	14,334

Source: Population Division, U.S. Census Bureau

Iowa Counties Population Estimates