RANKING · 2020 CENSUS · 44 SHOWN OF 44

Highest Slovak population share, Iowa counties · 2020

Iowa counties ranked by the share of all residents who are Slovak ancestry (2020 American Community Survey). A concentration measure: Slovak residents as a percentage of total population. This list covers the 44 counties in Iowa that qualify, ranked against each other statewide.

Slovak Americans: full group profile →

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SAME RANKING BYCities States Metros

RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPSLOVAK SHAREVS 2010

01Emmet County, IAIA9,1070.3%+0.1 pts

02Des Moines County, IAIA38,0770.3%+0.2 pts

03Jones County, IAIA21,2530.3%–

04Fayette County, IAIA19,0470.2%–

05Monroe County, IAIA7,4060.2%−0.6 pts

06Poweshiek County, IAIA18,3680.1%+0.1 pts

07Mahaska County, IAIA21,8800.1%–

08Boone County, IAIA26,7990.1%–

09Dallas County, IAIA118,4570.1%+0.1 pts

10Scott County, IAIA175,2590.1%+0.0 pts

11Marshall County, IAIA39,8900.1%+0.1 pts

12Johnson County, IAIA160,0440.1%−0.1 pts

13Jasper County, IAIA38,1530.1%–

14Linn County, IAIA232,0280.1%+0.0 pts

15Humboldt County, IAIA9,4090.1%+0.0 pts

16Story County, IAIA101,2910.1%+0.0 pts

17Adair County, IAIA7,4030.1%–

18Adams County, IAIA3,6170.1%–

19Cedar County, IAIA18,3590.1%–

20Bremer County, IAIA25,2960.1%–

21Polk County, IAIA516,5460.0%−0.1 pts

22Jefferson County, IAIA15,2910.0%−0.3 pts

23Howard County, IAIA9,4150.0%−0.1 pts

24Marion County, IAIA34,1920.0%−0.0 pts

25Muscatine County, IAIA41,8530.0%+0.0 pts

26Webster County, IAIA36,8380.0%+0.0 pts

27Dickinson County, IAIA18,0770.0%+0.0 pts

28Cherokee County, IAIA11,3690.0%–

29Dubuque County, IAIA99,3810.0%+0.0 pts

30Cerro Gordo County, IAIA42,3720.0%−0.1 pts

31Black Hawk County, IAIA131,5320.0%−0.1 pts

32Wayne County, IAIA6,7380.0%–

33Iowa County, IAIA16,5040.0%–

34Montgomery County, IAIA10,0020.0%–

35Lee County, IAIA32,3060.0%–

36Henry County, IAIA19,3490.0%−0.1 pts

37Crawford County, IAIA16,2370.0%−0.0 pts

38Grundy County, IAIA12,3610.0%–

39Clinton County, IAIA46,0020.0%+0.0 pts

40Washington County, IAIA22,6670.0%−0.2 pts

41Woodbury County, IAIA106,6490.0%−0.0 pts

42Hamilton County, IAIA14,9440.0%–

43Mills County, IAIA14,7930.0%–

44Floyd County, IAIA14,9010.0%–

SHOWING 1–44 OF 44

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS