| County Name |
County Seat |
Census QuickFacts
 |
Adair
 |
400 Public Square
Greenfield IA, 50849 |
19/19001
|
| Adams |
500 9th St
Corning IA, 50841 |
19/19003
|
|
Allamakee
|
110 Allamakee St
Waukon IA, 52172 |
19/19005
|
| Appanoose |
201 N 12th
Centerville IA, 52544 |
19/19007
|
| Audubon |
318 Leroy
Audubon IA, 50025 |
19/19009
|
| Benton |
111 E 4th St
Vinton IA, 52349 |
19/19011
|
|
Black Hawk
|
316 E 5th St
Waterloo IA, 50703 |
19/19013
|
| Boone
|
201 State St
Boone IA, 50036 |
19/19015
|
| Bremer
|
415 E Bremer Av
Waverly IA, 50677 |
19/19017
|
|
Buchanan
|
210 5th Av NE
Independence IA, 50644 |
19/19019
|
|
Buena Vista
|
215 E 5th St
Storm Lake IA, 50588 |
19/19021
|
| Butler
|
428 6th St
Allison IA, 50602 |
19/19023
|
| Calhoun |
416 4th St
Rockwell City IA, 50579 |
19/19025
|
|
Carroll
|
114 E 6th St
Carroll IA, 51401 |
19/19027
|
| Cass
|
5 W 7th
Atlantic IA, 50022 |
19/19029
|
| Cedar
|
400 Cedar St
Tipton IA, 52772 |
19/19031
|
|
Cerro Gordo
|
220 N Washington
Mason City IA, 50401 |
19/19033
|
| Cherokee |
520 W Main St
Cherokee IA, 51012 |
19/19035
|
| Chickasaw |
8 E Prospect
New Hampton IA, 50659 |
19/19037
|
| Clarke |
100 S Main
Osceola IA, 50213 |
19/19039
|
| Clay
|
300 W 4th St
Spencer IA, 51301 |
19/19041
|
| Clayton |
111 High St NE
Elkader IA, 52043 |
19/19043
|
|
Clinton
|
612 N 2nd St
Clinton IA, 52732 |
19/19045
|
| Crawford |
1202 Broadway
Denison IA, 51442 |
19/19047
|
| Dallas
|
801 Court St
Adel IA, 50003 |
19/19049
|
| Davis |
100 Courthouse Square
Bloomfield IA,
52537 |
19/19051
|
| Decatur |
207 N Main
Leon IA, 50144 |
19/19053
|
|
Delaware
|
308 E Main
Manchester IA, 52057 |
19/19055
|
| Des
Moines
|
513 N Main
Burlington IA, 52601 |
19/19057
|
|
Dickinson
|
1802 Hill Av
Spirit Lake IA, 51360 |
19/19059
|
|
Dubuque
|
720 Central Av
Dubuque IA, 52001 |
19/19061
|
| Emmet
|
609 1st Av N
Estherville IA, 51334 |
19/19063
|
|
Fayette
|
114 N Vine St
West Union IA, 52175 |
19/19065
|
| Floyd
|
101 S Main
Charles City IA, 50616 |
19/19067
|
| Franklin |
12 1st Av NW
Hampton IA, 50441 |
19/19069
|
|
Fremont
|
506 Filmore
Sidney IA, 51652 |
19/19071
|
| Greene |
114 N Chestnut
Jefferson IA, 50129 |
19/19073
|
| Grundy
|
706 G Av
Grundy Center IA, 50638 |
19/19075
|
| Guthrie |
200 N 5th
Guthrie Center IA, 50115 |
19/19077
|
|
Hamilton
|
2300 Superior
Webster City IA, 50595 |
19/19079
|
|
Hancock
|
855 State St
Garner IA, 50438 |
19/19081
|
| Hardin
|
1215 Edgington Av
Eldora IA, 50627 |
19/19083
|
| Harrison
|
111 N 2nd Av
Logan IA, 51546 |
19/19085
|
| Henry |
100 E Washington St
Mount Pleasant IA,
52641 |
19/19087
|
|
Howard
|
137 N Elm
Cresco IA, 52136 |
19/19089
|
| Humboldt |
203 Main St
Dakota City IA, 50529 |
19/19091
|
| Ida |
401 Moorehead
Ida Grove IA, 51445 |
19/19093
|
| Iowa |
901 Court Av
Marengo IA, 52301 |
19/19095
|
|
Jackson
|
201 W Platt St
Maquoketa IA, 52060 |
19/19097
|
| Jasper
|
101 1st St N
Newton IA, 50208 |
19/19099
|
| Jefferson |
Court & Briggs
Fairfield IA, 52556 |
19/19101
|
|
Johnson
|
417 S Clinton St
Iowa City IA, 52240 |
19/19103
|
|
Jones
|
500 W Main St
Anamosa IA, 52205 |
19/19105
|
|
Keokuk
|
101 S Main St
Sigourney IA, 52591 |
19/19107
|
|
Kossuth
|
114 W State
Algona IA, 50511 |
19/19109
|
| Lee
|
933 Av H
Fort Madison & Keokuk IA, 52627 |
19/19111
|
| Linn
|
930 1st St SW
Cedar Rapids IA, 52404 |
19/19113
|
|
Louisa
|
117 S Main
Wapello IA, 52653 |
19/19115
|
| Lucas |
916 Braden Av
Chariton IA, 50049 |
19/19117
|
| Lyon |
206 S 2nd Av
Rock Rapids IA, 51246 |
19/19119
|
| Madison
|
112 N John Wayne Dr
Winterset IA, 50273 |
19/19121
|
|
Mahaska
|
106 S 1st
Oskaloosa IA, 52577 |
19/19123
|
|
Marion
|
214 E Main
Knoxville IA, 50138 |
19/19125
|
|
Marshall
|
1 E Main
Marshalltown IA, 50158 |
19/19127
|
| Mills
|
418 Sharp
Glenwood IA, 51534 |
19/19129
|
| Mitchell |
508 State St
Osage IA, 50461 |
19/19131
|
| Monona |
610 Iowa Av
Onawa IA, 51040 |
19/19133
|
| Monroe |
10 Benton Av E
Albia IA, 52531 |
19/19135
|
| Montgomery |
105 Coolbaugh St
Red Oak IA, 51566 |
19/19137
|
|
Muscatine
|
401 E 3rd
Muscatine IA, 52761 |
19/19139
|
|
O'Brien
|
155 S Hayes Av
Primghar IA, 51245 |
19/19141
|
|
Osceola
|
300 7th
Sibley IA, 51249 |
19/19143
|
| Page |
112 E Main St
Clarinda IA, 51632 |
19/19145
|
| Palo Alto |
1010 Broadway
Emmetsburg IA, 50536 |
19/19147
|
|
Plymouth
|
215 4th Av SE
Le Mars IA, 51031 |
19/19149
|
| Pocahontas |
99 Courthouse Square
Pocahontas IA, 50574 |
19/19151
|
| Polk
|
5th Av & Mulberry St
Des Moines IA, 50309 |
19/19153
|
|
Pottawattamie
|
227 S 6th St
Council Bluffs IA, 51501 |
19/19155
|
| Poweshiek |
302 E Main St
Montezuma IA, 50171 |
19/19157
|
| Ringgold |
109 W Madison
Mount Ayr IA, 50854 |
19/19159
|
| Sac
|
100 NW State St
Sac City IA, 50583 |
19/19161
|
|
Scott |
600 W. 4th St.
Davenport IA, 52801 |
19/19163
|
| Shelby
|
612 Court St
Harlan IA, 51537 |
19/19165
|
| Sioux
|
210 Central Av SW
Orange City IA, 51041 |
19/19167
|
| Story
|
900 6th St
Nevada IA, 50010 |
19/19169
|
| Tama
|
100 W High St
Toledo IA, 52342 |
19/19171
|
| Taylor |
405 Jefferson
Bedford IA, 50833 |
19/19173
|
| Union |
300 N Pine
Creston IA, 50801 |
19/19175
|
| Van
Buren
|
406 Dodge St
Keosauqua IA, 52565 |
19/19177
|
|
Wapello
|
101 W 4th St
Ottumwa IA, 52501 |
19/19179
|
| Warren
|
301 N Buxton
Indianola IA, 50125 |
19/19181
|
|
Washington
|
222 W Main St
Washington IA, 52353 |
19/19183
|
| Wayne |
100 N Lafayette St
Corydon IA, 50060 |
19/19185
|
|
Webster
|
703 Central Av
Fort Dodge IA, 50501 |
19/19187
|
| Winnebago |
126 S Clark
Forest City IA, 50436 |
19/19189
|
| Winneshiek |
201 W Main
Decorah IA, 52101 |
19/19191
|
|
Woodbury
|
620 Douglas
Sioux City IA, 51101 |
19/19193
|
| Worth |
1000 Central Av
Northwood IA, 50459 |
19/19195
|
| Wright
|
115 N Main St
Clarion IA, 50525 |
19/19197
|
|
Rock Island
|
210 15th St
Rock Island IL, 61201 |
17/17161
|
