About Iowa on hearthmap
hearthmap aggregates housing, demographic, school, crime, and environmental data for every county, town, and ZIP code in Iowa. Use the interactive map to compare areas side by side, filter by what matters to you, or rank places with a custom match score.
Data is refreshed periodically from public sources including the U.S. Census Bureau, the National Center for Education Statistics, the FBI Uniform Crime Reporting Program, the EPA, Zillow, and Redfin. Source attribution is shown on each metric in the app.
Counties in Iowa
99 counties, ranked by population.
- 1Polk503,175
- 2Linn230,004
- 3Scott174,608
- 4Johnson156,639
- 5Black Hawk131,049
- 6Dallas107,968
- 7Woodbury106,247
- 8Story100,466
- 9Dubuque99,030
- 10Pottawattamie93,424
- 11Warren54,409
- 12Clinton46,268
- 13Cerro Gordo42,632
- 14Muscatine42,559
- 15Marshall40,114
- 16Des Moines38,487
- 17Jasper37,954
- 18Webster36,886
- 19Sioux36,212
- 20Wapello35,362
- 21Marion33,642
- 22Lee32,893
- 23Boone26,668
- 24Plymouth25,747
- 25Benton25,724
- 26Bremer25,204
- 27Washington22,561
- 28Mahaska22,021
- 29Jones20,896
- 30Buena Vista20,753
- 31Buchanan20,694
- 32Carroll20,594
- 33Henry20,004
- 34Winneshiek19,873
- 35Jackson19,390
- 36Fayette19,288
- 37Poweshiek18,545
- 38Cedar18,349
- 39Dickinson17,990
- 40Delaware17,558
- 41Clayton17,013
- 42Madison16,926
- 43Tama16,868
- 44Hardin16,639
- 45Iowa16,507
- 46Clay16,461
- 47Crawford16,277
- 48Jefferson15,705
- 49Floyd15,328
- 50Page15,131
- 51Hamilton14,886
- 52Harrison14,632
- 53Mills14,568
- 54Kossuth14,516
- 55Butler14,268
- 56O'Brien14,126
- 57Allamakee14,092
- 58Cass13,096
- 59Wright12,791
- 60Grundy12,384
- 61Appanoose12,184
- 62Lyon12,162
- 63Union11,993
- 64Chickasaw11,807
- 65Shelby11,778
- 66Cherokee11,600
- 67Guthrie10,688
- 68Louisa10,678
- 69Hancock10,671
- 70Winnebago10,583
- 71Mitchell10,575
- 72Montgomery10,214
- 73Franklin9,956
- 74Keokuk9,924
- 75Calhoun9,803
- 76Sac9,689
- 77Clarke9,662
- 78Humboldt9,591
- 79Howard9,445
- 80Emmet9,262
- 81Davis9,157
- 82Palo Alto8,863
- 83Lucas8,716
- 84Greene8,688
- 85Monona8,557
- 86Decatur7,759
- 87Monroe7,513
- 88Adair7,460
- 89Worth7,350
- 90Van Buren7,241
- 91Pocahontas7,046
- 92Ida6,911
- 93Wayne6,532
- 94Fremont6,514
- 95Osceola6,100
- 96Taylor5,868
- 97Audubon5,599
- 98Ringgold4,645
- 99Adams3,622
County rankings in Iowa
Every county in Iowa, ranked on one decision metric at a time.
- 01Cheapest home pricesCheapest Counties to Buy a House in Iowa
- 02Lowest monthly housing paymentCounties With the Lowest Monthly Housing Payment in Iowa
- 03Lowest property taxLowest Property Taxes in Iowa by County
- 04Cheapest homeowners insuranceCounties With the Cheapest Homeowners Insurance in Iowa
- 05Cheapest childcare costCounties With the Cheapest Childcare in Iowa
- 06Lowest natural disaster riskLowest Natural Disaster Risk Counties in Iowa
- 07Lowest flood riskLowest Flood Risk Counties in Iowa
- 08Lowest wildfire riskLowest Wildfire Risk Counties in Iowa
- 09Safest countiesSafest Counties (Lowest Violent Crime) in Iowa
- 10Best school ratingsIowa School Rankings by County
- 11Highest household incomeCounties With the Highest Household Income in Iowa
- 12Shortest commute timeCounties With the Shortest Commute in Iowa
- 13Fastest-selling homesCounties Where Homes Sell Fastest in Iowa
Iowa at a glance: frequently asked questions
- What is the population of Iowa?
- Iowa has a population of 3,210,507 based on the most recent US Census estimate.
- What is the median home price in Iowa?
- The median home value in Iowa is $237,481. Hover any county on the map for that county's value, or open Compare to put two states side by side.
- What is the median household income in Iowa?
- Median household income in Iowa is $75,059 per year, sourced from the US Census American Community Survey.
- How many counties are in Iowa?
- Iowa has 99 counties. Each county page on hearthmap shows housing, school, crime, and demographic data town by town.
- What is the average commute time in Iowa?
- The average one-way commute in Iowa is 19.8 minutes, based on US Census ACS journey-to-work data.
Compare Iowa with other places
Put up to four states, counties, towns, or ZIPs side by side on income, housing, crime, education, and more.