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Iowa Genealogy Records By County

NameCreatedCreated fromCounty seat
Adair County1851CassGreenfield
Adams County1851TaylorCorning
Allamakee County1847ClaytonWaukon
Appanoose County1843DavisCenterville
Audubon County1851Cass, Black HawkAudubon
Benton County1837Indian Land Purchase; Wisconsin TerritoryVinton
Black Hawk County1843DelawareWaterloo
Boone County1846PolkBoone
Bremer County1851Winnebago, Indian ReserveWaverly
Buchanan County1837Delaware, Wisconsin TerritoryIndependence
Buena Vista County1851Sac, ClayStorm Lake
Butler County1851Buchanan, Black HawkAllison
Calhoun County1855formerly called FoxRockwell City
Carroll County1851GuthrieCarroll
Cass County1851PottawattamieAtlantic
Cedar County1837Wisconsin TerritoryTipton
Cerro Gordo County1851FloydMason City
Cherokee County1851CrawfordCherokee
Chickasaw County1851FayetteNew Hampton
Clarke County1846LucasOsceola
Clay County1851Indian LandsSpencer
Clayton County1837Dubuque, Wisconsin TerritoryElkader
Clinton County1837Dubuque, Wisconsin TerritoryClinton
Crawford County1851ShelbyDenison
Dallas County1846PolkAdel
Davis County1843Van BurenBloomfield
Decatur County1846AppanooseLeon
Delaware County1837Dubuque, Wisconsin TerritoryManchester
Des Moines County (Originally Demoine)1834Michigan Territory; 1836 Wisconsin TerritoryBurlington
Dickinson County1851KossuthSpirit Lake
Dubuque County1834Michigan Territory; 1836 Wisconsin TerritoryDubuque
Emmet County1851Kossuth, DickinsonEstherville
Fayette County1837Clayton, Wisconsin TerritoryWest Union
Floyd County1851ChickasawCharles City
Franklin County1851ChickasawHampton
Fremont County1847PottawattamieSidney
Greene County1851DallasJefferson
Grundy County1851Black HawkGrundy Center
Guthrie County1851JacksonGuthrie Center
Hamilton County1856WebsterWebster City
Hancock County1851WrightGarner
Hardin County1851Black HawkEldora
Harrison County1851PottawattamieLogan
Henry County1836Wisconsin TerritoryMount Pleasant
Howard County1851Chickasaw, FloydCresco
Humboldt County1851Webster (originally spelled Humbolt)Dakota City
Ida County1851CherokeeIda Grove
Iowa County1843WashingtonMarengo
Jackson County1837Wisconsin TerritoryMaquoketa
Jasper County1846MahaskaNewton
Jefferson County1839Indian Land PurchaseFairfield
Johnson County1837Des Moines, Wisconsin TerritoryIowa City
Jones County1837Wisconsin TerritoryAnamosa
Keokuk County1843WashingtonSigourney
Kossuth County1851WebsterAlgona
Lee County1836Des MoinesFort Madison
Linn County1837Wisconsin TerritoryCedar Rapids
Louisa County1836Des MoinesWapello
Lucas County1846MonroeChariton
Lyon County1851WoodburyRock Rapids
Madison County1846PolkWinterset
Mahaska County1843Fox, Sac Indian PurchaseOskaloosa
Marion County1845WashingtonKnoxville
Marshall County1846JasperMarshalltown
Mills County1851PottawattamieGlenwood
Mitchell County1851ChickasawOsage
Monona County1851HarrisonOnawa
Monroe County1843Monroe (formerly Kishkekosh)Albia
Montgomery County1851PolkRed Oak
Muscatine County1836Des MoinesMuscatine
O'Brien County1851CherokeePrimghar
Osceola County1851WoodburySibley
Page County1847PottawattamieClarinda
Palo Alto County1858KossuthEmmetsburg
Plymouth County1851WoodburyLe Mars
Pocahontas County1851Humboldt, GreenePocahantas
Polk County1846Indian LandsDes Moines
Pottawattamie County1848Indian LandsCouncil Bluffs
Poweshiek County1843Mesquakie Indian LandsMontezuma
Ringgold County1847TaylorMount Ayr
Sac County1851GreeneSac City
Scott County1837Wisconsin TerritoryDavenport
Shelby County1851CassHarlan
Sioux County1851PlymouthOrange City
Story County1846Jasper, Polk, BooneNevada
Tama County1843Boone, BentonToledo
Taylor County1847PageBedford
Union County1851ClarkeCreston
Van Buren County1836Des MoinesKeosauqua
Wapello County1843Indian LandsOttumwa
Warren County1846PolkIndianola
Washington County1837Wisconsin Territory; formerly SlaughterWashington
Wayne County1846AppanooseCorydon
Webster County1851Yell, RisleyFort Dodge
Winnebago County1851KossuthForest City
Winneshiek County1847Indian LandsDecorah
Woodbury County1851Indian Lands (formerly Wahkaw)Sioux City
Worth County1851MitchellNorthwood
Wright County1851WebsterClarion


Counties No Longer In Existance

CountyCreatedCreated FromChange
Bancroft1851-Extinct
Buncombe--Changed to Lyon,1862
Cook1836Demoin & DubuqueExtinct
Fox1851-Renamed Calhoun, 1855
Keokuk1837Wisconsin TerritoryExtinct
Kishkekosh--Changed to Monroe, 1846
Madison1844-Extinct
Risley1851-Changed to Webster, 1853
Slaughter1837Wisconsin TerritoryRenamed Washington, 1838
Wahkaw1851-Changed to Woodbury, 1853
Yell1851-Extinct


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