Data / Rankings / Real GDP growth / Counties in Iowa

Counties in Iowa by real GDP growth

Adair County had the highest real GDP growth of 99 counties in 2020, at 19.9%. Washington County had the lowest, at -13.9%. The median was -2.5% and the figure for Iowa was -1.7%. Source: the U.S. Bureau of Economic Analysis.

Highest19.9Adair County
Lowest-13.9Washington County
Median-2.599 counties
Iowa-1.7History

Top 40 counties, 2020

CSVChart (SVG)

Adair CountyAdair County: 19.9 %19.9Dallas CountyDallas County: 9.7 %9.7Ida CountyIda County: 9.3 %9.3Guthrie CountyGuthrie County: 8.3 %8.3Union CountyUnion County: 6.6 %6.6Sioux CountySioux County: 6.5 %6.5Lyon CountyLyon County: 6.4 %6.4Winnebago CountyWinnebago County: 6.4 %6.4Tama CountyTama County: 6.3 %6.3Lee CountyLee County: 4.8 %4.8Buena Vista CountyBuena Vista County: 4.6 %4.6Jackson CountyJackson County: 3.7 %3.7Winneshiek CountyWinneshiek County: 3.4 %3.4Poweshiek CountyPoweshiek County: 2.8 %2.8Lucas CountyLucas County: 2.1 %2.1Polk CountyPolk County: 2 %2Cherokee CountyCherokee County: 1.6 %1.6Allamakee CountyAllamakee County: 1.3 %1.3Grundy CountyGrundy County: 1.2 %1.2Delaware CountyDelaware County: 0.9 %0.9Henry CountyHenry County: 0.9 %0.9Appanoose CountyAppanoose County: 0.7 %0.7Madison CountyMadison County: 0.5 %0.5Boone CountyBoone County: 0.3 %0.3Cerro Gordo CountyCerro Gordo County: 0.2 %0.2Dubuque CountyDubuque County: -0.2 %-0.2Jones CountyJones County: -0.4 %-0.4Carroll CountyCarroll County: -0.5 %-0.5Greene CountyGreene County: -0.5 %-0.5Warren CountyWarren County: -0.5 %-0.5Clay CountyClay County: -0.6 %-0.6Clinton CountyClinton County: -0.9 %-0.9Monroe CountyMonroe County: -0.9 %-0.9O'Brien CountyO'Brien County: -0.9 %-0.9Clarke CountyClarke County: -1 %-1Des Moines CountyDes Moines County: -1 %-1Buchanan CountyBuchanan County: -1.1 %-1.1Benton CountyBenton County: -1.3 %-1.3Howard CountyHoward County: -1.3 %-1.3Linn CountyLinn County: -1.3 %-1.3
%. Source: BEA. Retrieved 2026-10-08.

Full ranking

RankCounties2020 (%)Change on 2019
1Adair County19.9+17.1 pts
2Dallas County9.7-2.5 pts
3Ida County9.3+8.1 pts
4Guthrie County8.3+21.2 pts
5Union County6.6+2.6 pts
6Sioux County6.5+18.7 pts
7Lyon County6.4+20 pts
7Winnebago County6.4+11.5 pts
9Tama County6.3+6.7 pts
10Lee County4.8+6.5 pts
11Buena Vista County4.6+14.8 pts
12Jackson County3.7+6.1 pts
13Winneshiek County3.4+4.3 pts
14Poweshiek County2.8+1.6 pts
15Lucas County2.1+3.5 pts
16Polk County2-1.7 pts
17Cherokee County1.6+14.5 pts
18Allamakee County1.3+4.1 pts
19Grundy County1.2-0.1 pts
20Delaware County0.9+8.9 pts
20Henry County0.9+4.6 pts
22Appanoose County0.7+2.2 pts
23Madison County0.5+3.5 pts
24Boone County0.3-2.1 pts
25Cerro Gordo County0.2+3.3 pts
26Dubuque County-0.2-4.2 pts
27Jones County-0.4+1.9 pts
28Carroll County-0.5+5.9 pts
28Greene County-0.5+1.7 pts
28Warren County-0.5-3.1 pts
31Clay County-0.6-1 pts
32Clinton County-0.9+4.4 pts
32Monroe County-0.9+3.1 pts
32O'Brien County-0.9+7.2 pts
35Clarke County-1+9.2 pts
35Des Moines County-1+3.4 pts
37Buchanan County-1.1+0.8 pts
38Benton County-1.3-3.1 pts
38Howard County-1.3+1.6 pts
38Linn County-1.3+0.8 pts
38Marshall County-1.3+1.5 pts
38Muscatine County-1.3+3.2 pts
43Wapello County-1.5+1.4 pts
44Scott County-1.6-3.5 pts
45Black Hawk County-2-0.7 pts
45Dickinson County-2-3 pts
47Woodbury County-2.2+0.4 pts
48Decatur County-2.3+3.5 pts
48Story County-2.3-3.4 pts
50Taylor County-2.5-2.4 pts
50Worth County-2.5-3.7 pts
52Fayette County-2.6+3.9 pts
53Johnson County-2.7-1.9 pts
54Jasper County-2.9-6.2 pts
54Montgomery County-2.9-2.8 pts
56Marion County-3.4-11.1 pts
57Bremer County-3.5-3.1 pts
58Osceola County-3.6+20.9 pts
59Audubon County-3.7-14.7 pts
59Davis County-3.7+3.7 pts
61Wayne County-3.8+1.7 pts
62Butler County-3.9-3.4 pts
63Jefferson County-4.1-3.1 pts
64Webster County-4.2-1.3 pts
65Cass County-4.3+0.3 pts
66Crawford County-4.4+1.4 pts
66Van Buren County-4.4+2.6 pts
68Page County-4.5-6.4 pts
69Franklin County-4.7+1 pts
70Wright County-4.8+11.3 pts
71Calhoun County-5-1.2 pts
71Chickasaw County-5+3.1 pts
71Monona County-5-11.2 pts
71Sac County-5+1.7 pts
75Shelby County-5.1-4.6 pts
76Plymouth County-5.2+0.9 pts
77Floyd County-5.3+3.1 pts
78Pottawattamie County-5.7-2.1 pts
79Harrison County-5.8-7.3 pts
79Mahaska County-5.8+1.9 pts
79Ringgold County-5.8-2.4 pts
82Cedar County-6-3.3 pts
83Clayton County-6.3-5.2 pts
84Keokuk County-6.7-3.2 pts
85Hardin County-7.1+1.8 pts
86Humboldt County-7.3-8.4 pts
87Louisa County-7.6-9.3 pts
88Hancock County-7.9-0.7 pts
89Kossuth County-8.5-1.2 pts
90Fremont County-8.7-32.7 pts
91Emmet County-9.3-1.1 pts
92Palo Alto County-9.4+7.2 pts
93Iowa County-9.6-5.4 pts
94Adams County-10.2-9.5 pts
95Hamilton County-11.1+4.1 pts
96Mills County-13-24.4 pts
96Pocahontas County-13-11.9 pts
98Mitchell County-13.2-13.4 pts
99Washington County-13.9-11.9 pts

Other periods

About this ranking

Annual percentage change of GDP in chain-linked volumes, or at constant prices in the World Bank series.

Each value comes from one official source for that place: national statistics offices, Eurostat, for the United States the Bureau of Economic Analysis or, for other countries and the World, the World Bank. Annual values compare one calendar year with the previous one; quarterly values compare a quarter with the same quarter a year earlier. Past values can be revised. United States figures come from BEA tables SAGDP11 for the nation and states and CAGDP11 for counties. Growth in small counties can swing widely from year to year.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Bureau of Economic Analysis. CAGDP11: annual percent change in real GDP, all industry total, individual counties and county equivalents. https://apps.bea.gov/regional/zip/CAGDP11.zip. Retrieved 2026-10-08.

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Questions

Which county has the highest real GDP growth?

Adair County, with 19.9% in 2020, according to the U.S. Bureau of Economic Analysis.

Which county has the lowest real GDP growth?

Washington County, with -13.9% in 2020.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Bureau of Economic Analysis, CAGDP11: annual percent change in real GDP, all industry total, individual counties and county equivalents. Retrieved 2026-10-08.

Real GDP growth: other rankings

Counties in Iowa: more rankings