County ID	Area Name	Estimates Base (4/1/2000)	2000	2001	2002	2003	2004	2005	2006	2007
19000	Iowa	2,926,382	2,928,246	2,930,031	2,931,084	2,935,991	2,946,009	2,955,587	2,972,566	2,988,046
19001	Adair County	8,243	8,209	8,078	7,969	7,924	7,856	7,731	7,686	7,624
19003	Adams County	4,482	4,475	4,398	4,354	4,325	4,261	4,166	4,149	4,096
19005	Allamakee County	14,675	14,668	14,353	14,348	14,437	14,457	14,522	14,553	14,610
19007	Appanoose County	13,721	13,701	13,561	13,385	13,465	13,374	13,339	13,194	13,019
19009	Audubon County	6,830	6,808	6,656	6,551	6,440	6,382	6,256	6,163	6,072
19011	Benton County	25,308	25,340	25,620	25,992	26,177	26,496	26,650	26,576	26,546
19013	Black Hawk County	128,013	128,001	127,659	126,719	126,230	126,436	126,776	127,319	127,446
19015	Boone County	26,224	26,259	26,227	26,059	26,153	26,263	26,357	26,325	26,391
19017	Bremer County	23,325	23,284	23,404	23,215	23,295	23,405	23,442	23,609	23,734
19019	Buchanan County	21,093	21,078	20,944	20,764	20,782	20,861	20,774	20,855	20,927
19021	Buena Vista County	20,409	20,354	20,208	20,177	20,036	19,864	19,789	19,738	19,776
19023	Butler County	15,305	15,291	15,010	14,834	14,794	14,798	14,733	14,682	14,660
19025	Calhoun County	11,115	11,089	10,947	10,723	10,528	10,399	10,261	10,145	9,987
19027	Carroll County	21,421	21,371	21,212	21,142	20,996	20,907	20,937	20,844	20,923
19029	Cass County	14,684	14,671	14,476	14,215	14,231	14,084	13,929	13,929	13,884
19031	Cedar County	18,187	18,201	18,080	18,060	18,074	18,050	17,960	18,006	17,990
19033	Cerro Gordo County	46,447	46,351	45,747	45,276	45,165	44,691	44,373	44,161	44,016
19035	Cherokee County	13,037	13,011	12,844	12,542	12,362	12,228	12,042	11,846	11,686
19037	Chickasaw County	13,095	13,065	13,054	12,776	12,573	12,461	12,292	12,297	12,215
19039	Clarke County	9,133	9,189	9,183	9,176	9,224	9,238	9,094	9,080	8,995
19041	Clay County	17,372	17,370	17,251	17,068	16,959	16,920	16,790	16,737	16,689
19043	Clayton County	18,678	18,608	18,455	18,224	18,131	18,058	17,892	17,782	17,685
19045	Clinton County	50,149	50,051	49,848	49,614	49,487	49,387	49,304	49,239	49,051
19047	Crawford County	16,942	16,927	16,891	16,852	16,759	16,685	16,605	16,555	16,579
19049	Dallas County	40,773	41,066	42,722	44,341	46,347	49,437	51,839	54,669	57,288
19051	Davis County	8,541	8,543	8,573	8,570	8,501	8,565	8,517	8,543	8,572
19053	Decatur County	8,689	8,660	8,658	8,555	8,484	8,470	8,480	8,423	8,409
19055	Delaware County	18,404	18,388	18,213	18,128	17,988	17,810	17,636	17,502	17,459
19057	Des Moines County	42,351	42,286	41,920	41,323	41,275	40,849	40,668	40,614	40,701
19059	Dickinson County	16,424	16,461	16,475	16,350	16,328	16,489	16,619	16,684	16,696
19061	Dubuque County	89,156	89,235	89,002	89,231	90,154	90,681	91,032	91,486	92,359
19063	Emmet County	11,027	10,990	10,874	10,800	10,690	10,519	10,482	10,439	10,414
19065	Fayette County	22,008	21,992	21,678	21,438	21,319	21,051	20,973	20,733	20,433
19067	Floyd County	16,900	16,853	16,619	16,592	16,521	16,432	16,326	16,379	16,306
19069	Franklin County	10,704	10,686	10,611	10,648	10,597	10,637	10,646	10,540	10,568
19071	Fremont County	8,010	7,997	7,870	7,777	7,723	7,626	7,580	7,580	7,571
19073	Greene County	10,366	10,340	10,148	10,105	10,016	9,951	9,806	9,600	9,505
19075	Grundy County	12,369	12,364	12,290	12,311	12,251	12,259	12,250	12,263	12,149
19077	Guthrie County	11,353	11,343	11,225	11,225	11,326	11,372	11,229	11,102	11,053
19079	Hamilton County	16,438	16,416	16,172	16,218	16,170	16,037	15,952	15,794	15,596
19081	Hancock County	12,100	12,095	11,905	11,765	11,777	11,680	11,632	11,566	11,379
19083	Hardin County	18,812	18,814	18,654	18,435	18,234	18,027	17,797	17,630	17,551
19085	Harrison County	15,666	15,691	15,640	15,505	15,557	15,560	15,544	15,512	15,409
19087	Henry County	20,336	20,292	20,337	19,971	20,112	20,083	20,180	20,114	20,123
19089	Howard County	9,932	9,916	9,871	9,801	9,723	9,693	9,638	9,562	9,545
19091	Humboldt County	10,381	10,370	10,287	10,086	10,032	9,959	9,828	9,762	9,615
19093	Ida County	7,837	7,797	7,660	7,550	7,448	7,301	7,176	7,007	6,940
19095	Iowa County	15,671	15,707	15,786	15,768	15,846	15,825	15,941	15,999	15,912
19097	Jackson County	20,296	20,304	20,260	20,131	20,121	20,106	20,071	20,097	20,035
19099	Jasper County	37,213	37,216	37,273	37,382	37,425	37,293	37,061	36,852	36,748
19101	Jefferson County	16,181	16,162	16,043	15,816	15,737	15,707	15,583	15,521	15,618
19103	Johnson County	111,006	111,474	113,893	115,679	117,649	119,987	121,485	123,470	125,692
19105	Jones County	20,221	20,210	20,161	20,157	20,225	20,384	20,329	20,346	20,402
19107	Keokuk County	11,400	11,420	11,377	11,350	11,207	11,091	10,912	10,805	10,770
19109	Kossuth County	17,163	17,126	16,782	16,502	16,298	16,161	15,961	15,715	15,605
19111	Lee County	38,052	37,920	37,387	36,868	36,487	36,416	36,151	35,911	35,619
19113	Linn County	191,701	192,293	194,320	195,955	196,799	198,261	200,338	202,673	205,836
19115	Louisa County	12,183	12,170	12,171	12,205	12,194	12,071	11,799	11,793	11,795
19117	Lucas County	9,422	9,405	9,446	9,442	9,480	9,627	9,598	9,480	9,421
19119	Lyon County	11,763	11,743	11,640	11,593	11,576	11,536	11,479	11,387	11,266
19121	Madison County	14,019	14,059	14,153	14,323	14,466	14,704	14,884	15,217	15,416
19123	Mahaska County	22,335	22,304	22,381	22,323	22,041	22,090	22,257	22,180	22,280
19125	Marion County	32,054	32,100	32,507	32,418	32,287	32,277	32,339	32,767	32,775
19127	Marshall County	39,311	39,316	39,278	39,054	39,084	39,312	39,136	39,049	39,316
19129	Mills County	14,547	14,558	14,489	14,545	14,613	14,716	14,875	15,137	15,180
19131	Mitchell County	10,874	10,868	10,738	10,830	10,834	10,901	10,797	10,801	10,738
19133	Monona County	10,020	10,003	9,821	9,710	9,689	9,520	9,357	9,200	9,131
19135	Monroe County	8,016	8,001	7,935	7,792	7,811	7,785	7,728	7,652	7,586
19137	Montgomery County	11,771	11,792	11,508	11,304	11,195	11,173	11,191	11,152	11,002
19139	Muscatine County	41,722	41,801	41,801	41,823	41,714	41,862	42,029	42,271	42,423
19141	O'Brien County	15,102	15,067	14,886	14,691	14,601	14,357	14,269	14,214	14,062
19143	Osceola County	7,003	6,982	6,939	6,853	6,820	6,776	6,636	6,593	6,468
19145	Page County	16,976	16,919	16,873	16,433	16,175	16,013	16,019	16,054	15,874
19147	Palo Alto County	10,147	10,136	10,032	9,850	9,676	9,668	9,595	9,488	9,442
19149	Plymouth County	24,849	24,854	24,755	24,572	24,610	24,726	24,594	24,502	24,373
19151	Pocahontas County	8,662	8,602	8,462	8,346	8,156	7,987	7,815	7,708	7,686
19153	Polk County	374,582	375,960	381,216	386,216	390,788	394,969	403,490	411,027	418,339
19155	Pottawattamie County	87,803	87,968	87,677	87,966	88,091	88,850	89,060	89,373	89,409
19157	Poweshiek County	18,832	18,836	18,854	18,765	18,822	18,823	18,662	18,695	18,672
19159	Ringgold County	5,469	5,463	5,392	5,297	5,266	5,251	5,198	5,158	5,152
19161	Sac County	11,529	11,476	11,362	11,048	10,862	10,739	10,553	10,559	10,385
19163	Scott County	158,689	158,669	158,533	158,688	158,846	159,411	160,218	161,695	162,687
19165	Shelby County	13,074	13,071	12,998	12,848	12,764	12,668	12,431	12,319	12,313
19167	Sioux County	31,589	31,561	31,744	31,799	31,795	31,886	31,929	32,132	32,351
19169	Story County	79,981	80,135	80,112	81,738	81,649	82,176	82,102	83,804	84,752
19171	Tama County	18,103	18,075	18,017	17,912	17,864	17,958	17,933	17,862	17,855
19173	Taylor County	6,958	6,978	6,901	6,826	6,758	6,701	6,549	6,518	6,397
19175	Union County	12,309	12,271	12,203	12,087	11,888	11,930	11,960	12,066	12,146
19177	Van Buren County	7,809	7,818	7,736	7,739	7,673	7,669	7,632	7,684	7,690
19179	Wapello County	36,051	36,008	35,961	35,818	35,739	35,687	35,816	35,766	35,551
19181	Warren County	40,671	40,782	41,024	41,309	41,983	42,325	42,998	43,740	44,503
19183	Washington County	20,670	20,701	21,004	20,995	21,017	21,041	21,072	21,179	21,346
19185	Wayne County	6,730	6,727	6,643	6,643	6,579	6,515	6,438	6,390	6,292
19187	Webster County	40,235	40,199	40,049	39,690	39,397	38,964	38,618	38,703	38,587
19189	Winnebago County	11,723	11,744	11,537	11,342	11,325	11,224	11,215	11,052	10,961
19191	Winneshiek County	21,310	21,285	21,241	21,134	20,914	20,922	20,908	20,879	20,909
19193	Woodbury County	103,877	103,826	103,356	103,116	102,659	102,637	101,604	102,095	102,287
19195	Worth County	7,909	7,901	7,804	7,799	7,727	7,720	7,729	7,670	7,685
19197	Wright County	14,334	14,313	14,060	13,834	13,649	13,562	13,399	13,192	13,064