Updated voter registration numbers in Iowa's Congressional districts

by: desmoinesdem

Thu Apr 05, 2012 at 06:13:58 AM CDT

The Republican voter registration edge is likely to grow, because there are many more competitive GOP than Democratic primaries for the Iowa House and Senate. Republicans also have competitive primaries in two of the four Congressional districts, whereas Democrats have two candidates only in IA-02. On June 5, a significant number of Democrats and no-party voters will switch to the GOP in order to vote in a primary.

After the jump I've posted updated active voter registration numbers for Democrats, Republicans, and no-party voters in all 99 Iowa counties, grouped by Congressional district. The data come from this page on the Iowa Secretary of State website (pdf), except that I placed Wayne County in IA-02 where it belongs, rather than in IA-03. (UPDATE: That error has been corrected on the official site.) In some counties, the numbers are barely changed from last month's figures. Other county auditors have taken many more people off the active voter rolls.  

IA-01

County	Democrats	Republicans	no-party voters
Allamakee	2,440	3,600	3,478
Benton	4,607	5,014	7,232
Black Hawk	28,437	20,690	30,229
Bremer	3,615	4,897	6,962
Buchanan	4,014	3,155	6,293
Clayton	3,291	3,192	4,450
Delaware	2,684	3,937	4,870
Dubuque	24,751	14,263	21,659
Fayette	3,538	3,963	4,087
Howard	1,938	1,483	2,462
Iowa	2,791	3,691	4,699
Jackson	5,991	2,658	5,317
Jones	3,602	3,722	5,676
Linn	48,385	39,111	49,682
Marshall	7,452	8,027	9,151
Mitchell	1,823	2,501	2,645
Poweshiek	3,433	3,660	4,538
Tama	3,150	3,440	4,193
Winnishiek	3,579	4,389	4,797
Worth	1,657	1,599	2,105
total	161,178	136,992	184,525

IA-02

County	Democrats	Republicans	no-party voters
Appanoose	2,721	2,917	2,997
Cedar	3,069	3,655	4,443
Clarke	1,652	1,803	2,399
Clinton	10,466	7,424	12,666
Davis	1,907	1,509	1,356
Decatur	1,737	1,781	1,766
Des Moines	11,267	6,088	7,908
Henry	3,087	4,780	5,185
Jasper	9,350	7,534	7,760
Jefferson	3,035	3,630	3,330
Johnson	35,455	17,764	27,488
Keokuk	2,293	2,287	2,300
Lee	9,661	4,371	8,129
Louisa	1,854	2,560	2,549
Lucas	1,444	2,061	2,037
Mahaska	2,981	5,821	4,685
Marion	5,880	8,772	7,326
Monroe	1,783	1,508	1,418
Muscatine	7,761	8,294	10,363
Scott	34,920	30,544	45,955
Van Buren	1,086	2,162	1,629
Wapello	9,502	5,220	6,595
Washington	2,997	5,306	4,916
Wayne	1,025	1,306	1,117
total	166,933	139,097	176,317

IA-03

County	Democrats	Republicans	no-party voters
Adair	1,139	2,024	1,917
Adams	755	996	1,221
Cass	1,619	4,906	2,945
Dallas	10,334	15,570	17,328
Fremont	1,335	2,172	1,840
Guthrie	1,999	2,807	2,705
Madison	3,028	3,867	3,649
Mills	1,919	4,483	3,116
Montgomery	1,085	3,687	1,991
Page	1,614	4,351	3,463
Polk	96,439	79,890	70,530
Pottawattamie	15,834	19,330	17,780
Ringgold	1,007	1,284	768
Taylor	909	1,632	1,453
Union	1,754	2,783	2,809
Warren	9,676	10,224	10,241
total	150,446	160,006	143,756

IA-04

County	Democrats	Republicans	no-party voters
Audubon	1,349	1,442	1,452
Boone	5,415	5,074	6,530
Buena Vista	2,778	3,887	4,385
Butler	1,799	4,463	3,279
Calhoun	1,456	2,273	2,731
Carroll	4,277	3,910	6,168
Cerro Gordo	9,439	8,038	12,261
Cherokee	2,056	3,157	3,199
Chickasaw	2,959	2,216	3,579
Clay	2,634	4,469	4,310
Crawford	2,661	3,026	3,440
Dickinson	2,795	4,663	4,891
Emmet	2,258	1,690	3,066
Floyd	3,168	2,725	4,577
Franklin	1,273	2,937	2,319
Greene	1,743	2,243	2,421
Grundy	1,507	3,941	3,084
Hamilton	2,905	3,766	3,917
Hancock	1,620	3,304	2,890
Hardin	2,762	4,225	4,079
Harrison	2,449	3,512	2,378
Humboldt	1,380	2,440	2,425
Ida	961	2,160	1,864
Kossuth	3,599	3,278	4,120
Lyon	1,075	5,121	1,980
Monona	2,108	1,868	2,372
O'Brien	1,360	5,153	2,801
Osceola	530	2,447	1,146
Palo Alto	2,163	1,611	2,261
Plymouth	3,429	7,613	5,852
Pocahontas	1,182	1,733	2,301
Sac	1,364	3,056	2,558
Shelby	2,252	3,188	3,123
Sioux	1,566	14,186	3,422
Story	16,626	16,069	20,268
Webster	8,904	6,828	8,430
Winnebago	1,649	2,716	2,704
Woodbury	18,059	18,096	18,905
Wright	1,932	3,371	2,618
total	129,442	175,895	174,106