Open the workspace
Menu

HomeCoverageIowa

Iowa: county data, all 99 of them.

3,210,507 residents across 99 county-equivalents, 82,731 business establishments, and 3,729 SBA approvals worth $1.92 bn. Every figure on this page is those counties summed, and every county has its own page.

32 state-level values · 99 county pages · underlined figures are computed by MMCG Analytics, not published by the agency

How many people live in Iowa?

  • Population3,210,507
  • Households1,315,707
  • Average household size2.44
  • County-equivalents99
  • People per square mile57

Iowa has 3,210,507 residents in 1,315,707 households across 99 county-equivalents, every one of which has its own data page below.

US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.

What is the Iowa economy?

  • Combined county product, 2024$265.79 bn
  • County product per resident$82,789
  • Covered employment1,554,895
  • Average annual pay$61,193

The average annual pay of $61,193 is weighted by each county's covered employment, not averaged across counties, so a large labour market counts for more than a small one.

US Bureau of Economic Analysis, Regional, table CAGDP2, CAGDP2, through 2024. US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.

How many businesses are in Iowa?

  • Business establishments82,731
  • Establishments per 1,000 residents25.8
  • Employment at those establishments1,361,814
  • Annual payroll$76.74 bn

US Census Bureau, County Business Patterns, 2023.

Building permits in Iowa

  • Housing units permitted12,544
  • Permitted construction value$3.40 bn
  • Units permitted per 1,000 households9.5

US Census Bureau, Building Permits Survey, 2024 annual.

SBA loans in Iowa (7(a) and 504)

  • 7(a) approvals recorded2,460
  • 7(a) approval dollars$1.06 bn
  • Average 7(a) approval$429,282
  • 504 approvals recorded1,269
  • 504 approval dollars$860.6 m
  • Average 504 approval$678,153
  • Counties with a 7(a) record95 of 99

US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30. US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.

SBA loan default and charge-off rates in Iowa

  • 7(a) charge-off rate over resolved loans5.40 percent
  • Resolved 7(a) loans behind that rate606
  • 7(a) loans charged off33
  • 504 charge-off rate over resolved loans2.80 percent
  • Resolved 504 loans behind that rate435
  • 504 loans charged off12

Of the 606 Iowa 7(a) loans that have reached a final outcome, 5.40 percent were charged off. The rate is taken over resolved loans only, because a loan still running has not yet succeeded or failed.

Compare against the national and state SBA charge-off rates, computed the same way over resolved loans only.

US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30. US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.

How large is Iowa?

  • Land area55,857 sq mi
  • County-equivalents99
  • People per square mile57

US Census Bureau county boundary geometry, TIGER, adjacency computed from shared boundary vertices, TIGER county boundaries. US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.

The largest counties in Iowa.

Iowa county-equivalents by population, with the figures a site search compares them on
GeographyPopulationMedian incomeEstablishmentsCounty GDPSBA approvals
Polk County503,175$83,57613,890$63.82 bn824
Linn County230,004$77,6495,744$21.90 bn338
Scott County174,608$78,2774,525$13.29 bn215
Johnson County156,639$74,9353,490$12.64 bn132
Black Hawk County131,049$66,4173,105$10.04 bn200
Dallas County107,968$102,3792,521$11.11 bn154
Woodbury County106,247$73,6582,622$7.03 bn97
Story County100,466$69,6852,162$7.79 bn91
Dubuque County99,030$77,6302,804$9.16 bn99
Pottawattamie County93,424$73,6021,920$6.26 bn80

Counties

All 99 Iowa county-equivalents.

Iowa counties: population, income, establishments and SBA activity
GeographyPopulationMedian incomeEstablishmentsCounty GDPSBA approvalsLand area, sq mi
Adair County7,460$68,092208$662.6 m3569
Adams County3,622$71,87598$265.9 mNone recorded423
Allamakee County14,092$70,694365$780.2 m4639
Appanoose County12,184$54,934302$518.5 m29497
Audubon County5,599$58,229184$472.6 mNone recorded443
Benton County25,724$86,962535$1.14 bn26716
Black Hawk County131,049$66,4173,105$10.04 bn200566
Boone County26,668$83,531603$1.29 bn32572
Bremer County25,204$86,784552$1.58 bn35435
Buchanan County20,694$78,236490$1.09 bn18571
Buena Vista County20,753$71,719491$1.94 bn13575
Butler County14,268$73,715324$705.3 m10580
Calhoun County9,803$64,964280$559.9 m8570
Carroll County20,594$72,930827$1.84 bn23569
Cass County13,096$63,013444$990.9 m2564
Cedar County18,349$80,602460$811.5 m24579
Cerro Gordo County42,632$68,1891,357$3.73 bn84568
Cherokee County11,600$71,269340$1.09 bn11577
Chickasaw County11,807$75,675353$1.09 bn15504
Clarke County9,662$71,641188$638.9 m4431
Clay County16,461$65,428570$1.54 bn28567
Clayton County17,013$67,242487$1.18 bn8779
Clinton County46,268$66,9811,122$2.95 bn62695
Crawford County16,277$67,027415$1.12 bn18714
Dallas County107,968$102,3792,521$11.11 bn154588
Davis County9,157$77,194179$407.3 m10502
Decatur County7,759$59,044146$277.6 m2532
Delaware County17,558$74,989522$1.26 bn19578
Des Moines County38,487$62,9281,065$2.92 bn18416
Dickinson County17,990$75,432784$1.53 bn64381
Dubuque County99,030$77,6302,804$9.16 bn99608
Emmet County9,262$63,730268$519.1 m7396
Fayette County19,288$60,165524$1.07 bn18731
Floyd County15,328$68,557371$1.17 bn23501
Franklin County9,956$59,894285$789.8 m7582
Fremont County6,514$71,621190$394.1 m4511
Greene County8,688$63,409252$720.8 m3570
Grundy County12,384$87,205299$731.7 m15502
Guthrie County10,688$77,711313$752.5 m14591
Hamilton County14,886$72,432367$1.12 bn8577
Hancock County10,671$70,601302$1.20 bn17571
Hardin County16,639$65,069499$1.14 bn7569
Harrison County14,632$79,535338$674.6 m9697
Henry County20,004$67,436482$1.15 bn17434
Howard County9,445$67,446270$727.4 m3473
Humboldt County9,591$71,946305$598.2 m15434
Ida County6,911$63,073244$745.6 m26432
Iowa County16,507$71,223459$1.27 bn15586
Jackson County19,390$74,186515$906.7 m9636
Jasper County37,954$71,311767$1.52 bn36730
Jefferson County15,705$61,620608$911.3 m13436
Johnson County156,639$74,9353,490$12.64 bn132614
Jones County20,896$73,531514$858.3 m23576
Keokuk County9,924$62,329236$442.6 m12579
Kossuth County14,516$67,697536$1.40 bn10973
Lee County32,893$62,382786$2.26 bn6518
Linn County230,004$77,6495,744$21.90 bn338717
Louisa County10,678$77,354211$930.4 m3402
Lucas County8,716$61,793187$362.4 mNone recorded431
Lyon County12,162$76,746402$1.43 bn34588
Madison County16,926$90,855435$684.3 m16561
Mahaska County22,021$70,940538$1.19 bn18571
Marion County33,642$78,680859$2.88 bn35555
Marshall County40,114$73,315786$2.32 bn13573
Mills County14,568$90,753331$645.3 m11437
Mitchell County10,575$71,365302$994.8 m12469
Monona County8,557$68,377228$462.0 m5694
Monroe County7,513$70,996183$619.0 m12434
Montgomery County10,214$63,666294$557.2 m9424
Muscatine County42,559$69,396949$3.24 bn35437
O'Brien County14,126$68,356488$1.25 bn14573
Osceola County6,100$69,239192$602.1 m4399
Page County15,131$57,953404$810.6 m5535
Palo Alto County8,863$72,781272$796.3 m12564
Plymouth County25,747$83,251667$2.00 bn29863
Pocahontas County7,046$61,875200$641.7 m7577
Polk County503,175$83,57613,890$63.82 bn824574
Pottawattamie County93,424$73,6021,920$6.26 bn80950
Poweshiek County18,545$67,391571$1.65 bn13585
Ringgold County4,645$73,346131$233.7 m7535
Sac County9,689$73,838321$793.7 m6575
Scott County174,608$78,2774,525$13.29 bn215458
Shelby County11,778$72,738384$1.05 bn10591
Sioux County36,212$86,0981,345$3.92 bn52768
Story County100,466$69,6852,162$7.79 bn91573
Tama County16,868$70,781282$847.9 m12721
Taylor County5,868$67,740140$375.9 m5532
Union County11,993$57,772305$964.9 m9424
Van Buren County7,241$61,161149$295.0 m7485
Wapello County35,362$64,766699$2.16 bn33432
Warren County54,409$94,5881,020$1.89 bn103570
Washington County22,561$75,647687$1.86 bn19569
Wayne County6,532$61,964143$316.5 m3525
Webster County36,886$68,975997$2.76 bn30716
Winnebago County10,583$67,642300$690.1 m7400
Winneshiek County19,873$79,066604$1.35 bn12690
Woodbury County106,247$73,6582,622$7.03 bn97873
Worth County7,350$78,008163$485.0 m5400
Wright County12,791$67,190358$1.25 bn5580

The register

Every source behind these 99 pages.

SourcePeriod coveredLicence
US Census Bureau, American Community Survey 5-Year Estimates2020-2024 5-yearUS Census Bureau, public domain
US Census Bureau, Population Estimates Program, Vintage 2024Vintage 2024, estimates 2020 to 2024US Census Bureau, public domain
US Bureau of Economic Analysis, Regional, table CAGDP2CAGDP2, through 2024US Bureau of Economic Analysis, public domain
US EPA, Map of Radon Zones, county spreadsheet2024-05 publication, EPA 402/A-16/001US EPA, public domain
FEMA OpenFEMA, NFIP Community Status BookCommunity Status Book, as retrievedFEMA OpenFEMA, public domain
US Small Business Administration, 7(a) FOIA releaseFY2020 to FY2026 year to date, as of 2026-06-30FOIA release, public domain
US Small Business Administration, 504 FOIA releaseFY2010 to FY2026 year to date, as of 2026-06-30FOIA release, public domain
US Census Bureau county boundary geometry, TIGER, adjacency computed from shared boundary verticesTIGER county boundariesUS Census Bureau, public domain
US Census Bureau, County Business Patterns2023US Census Bureau, public domain
US Bureau of Labor Statistics, Quarterly Census of Employment and Wages2024 annual averagesUS BLS, public domain
US Census Bureau, Building Permits Survey2024 annualUS Census Bureau, public domain
US Internal Revenue Service, Statistics of Income county migration flows2021 to 2022 filing yearsIRS SOI, public domain

An Iowa statutory guide is in preparation.

How a county page is built →