Polk County, Iowa
[1] It is Iowa's most populous county, and home to over 15% of the state's residents.The county seat is Des Moines,[2] which is also the capital city of Iowa.Due to construction delays and the onset of the Civil War, the structure was not completed until 1866.As of the census of 2020, there were 492,401 people and 207,290 households in the county, with a population density of 833.5383/sq mi (321.8310/km2).As of the census of 2010, there were 430,640 people and 170,197 households in the county, with a population density of 756.371/sq mi (292.037/km2).[13] The population ranking of the following table is based on the 2020 census of Polk County.
CountyNamed forJames K. PolkDes MoinesTime zoneUTC−6CentralUTC−5U.S. state2020 censuscounty seatWest Des MoinesMetropolitan Statistical AreaIowa TerritoryCivil WarcourthouseUnited States Census BureauDes Moines RiverInterstate 35Interstate 80Interstate 235U.S. Highway 6U.S. Highway 65U.S Route 69Iowa Highway 5Iowa Highway 17Iowa Highway 28Iowa Highway 141Iowa Highway 160Iowa Highway 163Iowa Highway 415Iowa Highway 210Des Moines Area Regional TransitBurlington TrailwaysJefferson LinesDes Moines Bus StationDallasJasperMadisonMarionWarrenAllemanAltoonaAnkenyBondurantCarlisleElkhartGrangerGrimesJohnstonMitchellvilleNorwalkPleasant HillPolk CityRunnellsSheldahlUrbandaleWindsor HeightsSaylorvilleBerwickEnterpriseFarrarHerroldBeaverBloomfieldCrockerDelawareDouglasFour MileFranklinJeffersonLincolnSaylorWalnutWashingtonWebsterpopulation pyramidcensusAfrican AmericanNative AmericanPacific IslanderHispanicLatinoGermanEnglishpoverty lineIowa Department of CorrectionsIowa Correctional Institution for WomenRepublicanDemocraticThird party(ies)Warren CountyMadison CountiesJasper CountyStory CountiesAnkeny Community School DistrictBallard Community School DistrictBondurant-Farrar Community School DistrictCarlisle Community School DistrictCollins-Maxwell Community School DistrictDallas Center-Grimes Community School DistrictDes Moines Independent Community School DistrictJohnston Community School DistrictMadrid Community School DistrictNorth Polk Community School DistrictPCM Community School DistrictSaydel Community School DistrictSoutheast Polk Community School DistrictUrbandale Community School DistrictWest Des Moines Community School DistrictWoodward-Granger Community School DistrictAdventureland ResortBlank Park ZooIowa State CapitolIowa State FairLiving History FarmsScience Center of IowaValley JunctionWells Fargo ArenaPolk County CourthouseTerrace HillNational Register of Historic Places listings in Polk County, IowaUnited States Office of Management and BudgetWayback MachineBoone CountyStory County