Regional Economics & Community Analysis Program

College-educated adults, historical

Table ID: WRK-7
Unit of measure: Percentage of population 25 years and older
Vintage: 1940-2000

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County IDArea Name1940195019601970198019902000
19000Iowa4.1%5.0%6.4%9.1%13.9%16.9%21.2%
19001Adair County2.4%2.3%2.8%6.7%8.8%9.8%11.2%
19003Adams County2.3%2.7%3.6%6.2%9.9%9.4%12.0%
19005Allamakee County2.8%3.1%4.1%4.5%9.4%8.9%14.4%
19007Appanoose County2.3%2.6%3.2%5.3%9.1%11.5%12.2%
19009Audubon County2.3%1.8%3.6%4.2%9.0%9.8%12.3%
19011Benton County2.9%3.2%4.0%5.6%8.6%9.6%13.9%
19013Black Hawk County5.2%5.9%7.5%10.1%15.4%17.3%23.0%
19015Boone County2.8%3.5%5.1%6.2%12.1%13.7%18.8%
19017Bremer County3.3%3.0%5.8%8.9%13.9%15.1%21.5%
19019Buchanan County2.9%2.6%5.0%6.2%9.3%11.2%12.7%
19021Buena Vista County4.7%5.5%6.5%8.7%14.6%15.2%18.7%
19023Butler County2.5%2.6%3.3%4.6%7.2%9.4%12.4%
19025Calhoun County3.2%3.5%4.3%7.3%9.6%11.6%15.4%
19027Carroll County3.6%4.9%4.5%6.1%9.6%11.3%16.0%
19029Cass County3.2%3.2%5.5%8.4%9.9%12.5%16.6%
19031Cedar County3.2%4.1%4.4%6.8%10.6%12.8%16.3%
19033Cerro Gordo County4.4%5.7%6.3%9.7%13.8%15.5%20.3%
19035Cherokee County3.3%3.8%4.4%7.9%11.7%10.8%15.2%
19037Chickasaw County2.6%2.5%4.1%4.1%8.5%9.9%12.2%
19039Clarke County2.5%3.6%3.5%4.3%7.9%8.8%12.1%
19041Clay County4.2%4.4%6.5%8.9%12.8%14.5%16.3%
19043Clayton County2.7%3.1%3.3%4.0%8.8%9.0%12.8%
19045Clinton County3.3%4.1%5.4%7.9%10.8%12.9%14.4%
19047Crawford County2.6%2.1%2.9%5.8%8.6%9.8%12.4%
19049Dallas County3.7%3.3%5.8%6.9%13.3%16.3%26.8%
19051Davis County2.1%3.1%3.2%5.6%7.2%10.5%11.4%
19053Decatur County2.6%3.4%5.7%7.7%13.8%12.3%15.1%
19055Delaware County4.0%4.0%3.3%5.5%8.1%11.0%13.0%
19057Des Moines County3.5%4.2%5.7%7.7%11.5%12.7%16.0%
19059Dickinson County3.5%4.1%5.1%7.0%13.7%17.5%21.3%
19061Dubuque County4.6%5.8%7.0%10.1%15.0%16.8%21.3%
19063Emmet County3.4%4.5%4.9%6.5%10.8%11.0%13.0%
19065Fayette County3.4%4.2%5.2%6.5%11.3%11.8%13.8%
19067Floyd County3.8%4.1%5.5%7.2%11.5%12.2%14.8%
19069Franklin County3.1%3.4%3.8%5.4%10.2%12.3%14.5%
19071Fremont County3.7%3.4%5.2%7.4%10.5%11.3%14.0%
19073Greene County3.6%5.1%5.5%7.0%10.8%13.7%14.6%
19075Grundy County3.1%2.7%3.9%6.6%10.0%12.3%17.2%
19077Guthrie County3.0%2.7%3.3%4.5%7.2%9.9%14.9%
19079Hamilton County3.4%3.4%5.3%7.3%11.2%12.8%17.5%
19081Hancock County2.9%3.5%3.5%4.9%9.2%10.3%15.4%
19083Hardin County4.6%5.6%5.5%7.7%11.0%12.4%17.1%
19085Harrison County2.8%2.7%3.2%4.3%8.2%9.1%12.7%
19087Henry County4.5%5.8%6.6%10.6%12.5%14.5%16.2%
19089Howard County3.0%3.0%4.7%2.8%7.7%8.2%12.6%
19091Humboldt County3.6%3.3%5.3%7.3%9.6%11.6%15.4%
19093Ida County3.4%3.8%3.8%5.8%10.8%11.0%13.6%
19095Iowa County2.7%3.2%4.3%5.7%9.5%11.1%15.8%
19097Jackson County2.3%3.2%3.0%4.8%8.5%10.0%12.1%
19099Jasper County3.5%4.3%4.6%7.2%9.8%12.7%15.9%
19101Jefferson County4.8%6.5%8.1%10.4%18.5%26.5%31.2%
19103Johnson County12.9%18.8%21.8%30.8%38.6%44.0%47.6%
19105Jones County3.0%3.4%3.8%6.4%9.4%10.6%12.7%
19107Keokuk County3.0%2.6%3.8%6.0%7.3%9.4%11.6%
19109Kossuth County3.6%4.4%4.7%6.2%8.6%11.8%13.6%
19111Lee County2.8%3.9%5.3%7.1%9.5%10.7%12.5%
19113Linn County6.1%7.0%9.4%11.9%16.7%21.5%27.7%
19115Louisa County3.3%3.2%4.5%7.1%8.5%9.2%12.7%
19117Lucas County2.6%3.2%4.8%4.8%7.8%9.5%11.1%
19119Lyon County2.8%3.0%3.5%6.1%9.3%10.2%14.2%
19121Madison County2.7%1.9%4.0%4.8%8.5%12.0%14.4%
19123Mahaska County4.2%4.2%5.1%7.3%11.0%13.1%16.5%
19125Marion County3.2%3.2%5.8%7.1%10.5%12.9%18.9%
19127Marshall County4.1%4.9%5.7%8.3%14.2%15.8%17.0%
19129Mills County3.0%2.4%4.5%6.0%10.2%12.6%16.3%
19131Mitchell County3.1%3.6%4.3%5.8%8.5%11.1%12.8%
19133Monona County3.0%3.9%4.0%5.8%8.2%10.3%13.4%
19135Monroe County2.2%2.8%3.2%5.4%6.5%8.0%12.6%
19137Montgomery County3.8%3.7%5.2%6.5%10.4%12.8%12.9%
19139Muscatine County3.2%3.8%5.6%8.6%11.8%13.0%17.2%
19141O'Brien County3.4%3.8%4.8%7.0%11.7%12.6%14.7%
19143Osceola County2.8%2.8%3.1%3.5%8.5%10.0%13.4%
19145Page County4.1%5.0%5.9%7.6%10.8%13.5%16.6%
19147Palo Alto County3.6%3.7%5.5%6.6%11.4%12.8%13.9%
19149Plymouth County3.6%3.9%5.2%8.2%11.9%15.0%19.3%
19151Pocahontas County3.4%4.2%4.6%6.6%9.7%12.8%15.0%
19153Polk County6.8%8.0%9.5%12.8%19.2%23.9%29.7%
19155Pottawattamie County3.2%3.5%4.2%5.5%9.2%11.0%15.0%
19157Poweshiek County5.3%6.1%7.5%11.8%14.8%16.2%18.5%
19159Ringgold County2.5%3.0%3.4%4.3%8.4%10.3%13.4%
19161Sac County3.5%5.0%4.4%6.9%10.6%12.7%13.6%
19163Scott County4.6%6.1%7.5%10.7%18.4%21.9%24.9%
19165Shelby County2.6%3.5%3.7%6.1%9.6%12.8%15.3%
19167Sioux County2.8%3.3%3.8%7.1%12.0%14.4%19.8%
19169Story County11.9%16.9%19.4%28.0%33.9%38.4%44.5%
19171Tama County3.1%3.2%3.8%4.5%10.1%11.2%12.9%
19173Taylor County2.5%2.7%2.9%5.3%7.1%8.7%12.0%
19175Union County3.4%3.2%3.6%6.2%9.2%12.8%14.7%
19177Van Buren County2.8%3.1%4.4%5.4%8.4%9.6%11.8%
19179Wapello County3.5%4.1%5.2%5.8%9.9%11.0%14.6%
19181Warren County4.3%5.1%7.2%9.1%13.9%16.2%21.2%
19183Washington County3.5%4.4%5.5%7.2%11.8%11.7%16.4%
19185Wayne County2.4%2.0%4.1%5.0%7.8%8.4%12.1%
19187Webster County4.1%4.8%5.9%8.3%12.6%13.7%16.9%
19189Winnebago County3.1%3.6%5.4%7.7%10.6%14.0%16.5%
19191Winneshiek County3.3%3.2%5.3%8.8%13.3%17.1%20.5%
19193Woodbury County5.0%5.7%7.1%9.9%14.9%16.7%18.9%
19195Worth County2.3%3.0%4.3%5.0%8.2%10.9%12.7%
19197Wright County3.7%3.8%5.1%6.7%10.2%11.3%13.5%

Release Date: February 2003
Source: "Educational Attainment by County, Years 1940 to 2000," originated by Chris Kahle, Iowa Department of Natural Resources, Iowa Geological Survey, compiled from various U.S. Census Bureau sources.
Notes: These data show percentage of the total population age 25 years and older with a bachelor's degree or higher educational attainment.