Iowa County Map, List of Counties in Iowa with Seats

The U.S. state of Iowa is divided into 99 Counties. Explore the Iowa County Map, all Counties list along with their County Seats in alphabetical order and their population, areas and the date of formation.

Iowa County Map

Iowa County Map About Iowa County Map: The map showing the county boundary, all counties boundary, state capital and neighbouring states.
  • Iowa Map
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  • About Counties of Iowa

    Iowa is a state of United States of America which is situated in midwestern region of the country. The state is bordered with Wisconsin to the northeast, Illinois positioned to the east, Missouri to the south, Nebraska to the west and Minnesota to the north. The state is very popular as it excelled in science and technology, invention and creativity. Iowa was an administrative district of French and Spanish colonies during 18th and 19th centuries. The state ranks as the 26th state in terms of having area in the country. Iowa has the total area of 55857 square miles. According to the 2020 census the population of Iowa was 3,190,369 and indeed the 31st most populous state of all the states of United Nations. The former capital city of the state was Iowa city but now Des Moines; it is the largest city in the state which has 210,723 population.

    The state of Iowa was divided into 99 counties for the administrative purpose. Iowa has 947 cities. Among all the cities of the state Den Moines is the largest in area and population. The smallest city of the state in terms of population is Beaconsfield and Le Roy. Dickinson is the tiniest city of area. Iowa is number one state in producing corn. The state depends on agriculture and manufacturing sectors for its income.

    The famous places to visit in the area are National Mississippi River Museum and Aquarium, National Czech and Slovak Museum and Library, the state Capitol building Maquoketa Caves State Park and Amana Colonies.

    The U.S. state of Iowa has 99 Counties. This is list of Iowa Counties and County Seats in alphabetical order along with check their population, areas and the date of formation.

    List of Counties in Iowa with County Seats

    S.NCountyCounty SeatPopulation(2011)Area Formed
    1Adair CountyGreenfield7,682569 sq miJanuary 15, 1851
    2Adams CountyCorning4,029424 sq miJanuary 15, 1851
    3Allamakee CountyWaukon14,330640 sq miFebruary 20, 1847
    4Appanoose CountyCenterville12,884496 sq miFebruary 17, 1843
    5Audubon CountyAudubon6,119443 sq miJanuary 15, 1851
    6Benton CountyVinton26,076716 sq miDecember 21, 1837
    7Black Hawk CountyWaterloo131,090567 sq miFebruary 17, 1843
    8Boone CountyBoone26,306572 sq miJanuary 13, 1846
    9Bremer CountyWaverly24,276428 sq miJanuary 15, 1851
    10Buchanan CountyIndependence20,958571 sq miDecember 21, 1837
    11Buena Vista CountyStorm Lake20,260575 sq miJanuary 15, 1851
    12Butler CountyAllison14,867580 sq miJanuary 15, 1851
    13Calhoun CountyRockwell City9,670570 sq miJanuary 15, 1851
    14Carroll CountyCarroll20,816569 sq miJanuary 15, 1851
    15Cass CountyAtlantic13,956564 sq miJanuary 15, 1851
    16Cedar CountyTipton18,499580 sq miDecember 21, 1837
    17Cerro Gordo CountyMason City44,151568 sq miJanuary 15, 1851
    18Cherokee CountyCherokee12,072577 sq miJanuary 15, 1851
    19Chickasaw CountyNew Hampton12,439505 sq miJanuary 15, 1851
    20Clarke CountyOsceola9,286431 sq miJanuary 13, 1846
    21Clay CountySpencer16,667569 sq miJanuary 15, 1851
    22Clayton CountyElkader18,129779 sq miDecember 21, 1837
    23Clinton CountyClinton49,116695 sq miDecember 21, 1837
    24Crawford CountyDenison17,096714 sq miJanuary 15, 1851
    25Dallas CountyAdel66,135586 sq miJanuary 13, 1846
    26Davis CountyBloomfield8,753503 sq miFebruary 17, 1843
    27Decatur CountyLeon8,457532 sq miJanuary 13, 1846
    28Delaware CountyManchester17,764578 sq miDecember 21, 1837
    29Des Moines CountyBurlington40,325416 sq miSeptember 6, 1834
    30Dickinson CountySpirit Lake16,667381 sq miJanuary 15, 1851
    31Dubuque CountyDubuque93,653608 sq miSeptember 6, 1834
    32Emmet CountyEstherville10,302396 sq miJanuary 15, 1851
    33Fayette CountyWest Union20,880731 sq miDecember 21, 1837
    34Floyd CountyCharles City16,303501 sq miJanuary 15, 1851
    35Franklin CountyHampton10,680582 sq miJanuary 15, 1851
    36Fremont CountySidney7,441511 sq miFebruary 24, 1847
    37Greene CountyJefferson9,336568 sq miJanuary 15, 1851
    38Grundy CountyGrundy Center12,453503 sq miJanuary 15, 1851
    39Guthrie CountyGuthrie Center10,954591 sq miJuly 8, 1851
    40Hamilton CountyWebster City15,673577 sq miDecember 22, 1856
    41Hancock CountyGarner11,341571 sq miJanuary 15, 1851
    42Hardin CountyEldora17,534569 sq miJanuary 15, 1851
    43Harrison CountyLogan14,928697 sq miJanuary 15, 1851
    44Henry CountyMount Pleasant20,145434 sq miDecember 7, 1836
    45Howard CountyCresco9,566473 sq miJanuary 15, 1851
    46Humboldt CountyDakota City9,815434 sq miFebruary 26, 1857
    47Ida CountyIda Grove7,089432 sq miJanuary 15, 1851
    48Iowa CountyMarengo16,355586 sq miFebruary 17, 1843
    49Jackson CountyMaquoketa19,848636 sq miDecember 21, 1837
    50Jasper CountyNewton36,842730 sq miJanuary 13, 1846
    51Jefferson CountyFairfield16,843435 sq miJanuary 21, 1839
    52Johnson CountyIowa City130,882614 sq miDecember 21, 1837
    53Jones CountyAnamosa20,638575 sq miDecember 21, 1837
    54Keokuk CountySigourney10,511579 sq miDecember 21, 1837
    55Kossuth CountyAlgona15,543973 sq miJanuary 15, 1851
    56Lee CountyFort Madison and Keokuk35,862517 sq miDecember 7, 1836
    57Linn CountyCedar Rapids211,226718 sq miDecember 21, 1837
    58Louisa CountyWapello11,387402 sq miDecember 7, 1836
    59Lucas CountyChariton8,898431 sq miJanuary 13, 1846
    60Lyon CountyRock Rapids11,581588 sq miJanuary 15, 1851
    61Madison CountyWinterset15,679561 sq miJanuary 13, 1846
    62Mahaska CountyOskaloosa22,381571 sq miFebruary 17, 1843
    63Marion CountyKnoxville33,309554 sq miJune 10, 1845
    64Marshall CountyMarshalltown40,648572 sq miJanuary 13, 1846
    65Mills CountyGlenwood15,059437 sq miJanuary 15, 1851
    66Mitchell CountyOsage10,776469 sq miJanuary 15, 1851
    67Monona CountyOnawa9,243693 sq miJanuary 15, 1851
    68Monroe CountyAlbia7,970433 sq miFebruary 17, 1843
    69Montgomery CountyRed Oak10,740424 sq miJanuary 15, 1851
    70Muscatine CountyMuscatine42,745439 sq miDecember 7, 1836
    71O'Brien CountyPrimghar14,398573 sq miJanuary 15, 1851
    72Osceola CountySibley6,462399 sq miJanuary 15, 1851
    73Page CountyClarinda15,932535 sq miFebruary 24, 1847
    74Palo Alto CountyEmmetsburg9,421564 sq miJanuary 15, 1851
    75Plymouth CountyLe Mars24,986864 sq miJanuary 15, 1851
    76Pocahontas CountyPocahontas7,310578 sq miJanuary 15, 1851
    77Polk CountyDes Moines430,640570 sq miJanuary 13, 1846
    78Pottawattamie CountyCouncil Bluffs93,158954 sq miFebruary 24, 1847
    79Poweshiek CountyMontezuma18,914585 sq miFebruary 17, 1843
    80Ringgold CountyMount Ayr5,131538 sq miFebruary 24, 1847
    81Sac CountySac City10,350576 sq miJanuary 15, 1851
    82Scott CountyDavenport165,224458 sq miDecember 21, 1837
    83Shelby CountyHarlan12,167591 sq miJanuary 15, 1851
    84Sioux CountyOrange City33,704768 sq miJanuary 15, 1851
    85Story CountyNevada89,542573 sq miJanuary 13, 1846
    86Tama CountyToledo17,767721 sq miFebruary 17, 1843
    87Taylor CountyBedford6,317534 sq miFebruary 24, 1847
    88Union CountyCreston12,534424 sq miJanuary 15, 1851
    89Van Buren CountyKeosauqua7,570485 sq miDecember 7, 1836
    90Wapello CountyOttumwa35,625432 sq miFebruary 17, 1843
    91Warren CountyIndianola46,225572 sq miJanuary 13, 1846
    92Washington CountyWashington21,704569 sq miJanuary 25, 1839
    93Wayne CountyCorydon6,403526 sq miJanuary 13, 1846
    94Webster CountyFort Dodge38,013715 sq miJanuary 12, 1853
    95Winnebago CountyForest City10,866400 sq miJanuary 15, 1851
    96Winneshiek CountyDecorah21,056690 sq miFebruary 20, 1847
    97Woodbury CountySioux City102,172873 sq miJanuary 12, 1853
    98Worth CountyNorthwood7,598400 sq miJanuary 15, 1851
    99Wright CountyClarion13,229581 sq miJanuary 15, 1851
    Edited by: Vijay Kanth | Updated: September 26, 2021