Ranking of US Counties By Percentage of Population with Czechoslovakian Ancestry in 2021
Updated on March 2, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, among all US counties with a population of at least 50K, Shiawassee County, MI had the highest percentage of population with Czechoslovakian ancestry (0.79%), followed by Jefferson County, OH (0.73%), and Ashland County, OH (0.64%).
The chart below shows the top 10 counties with high percentage of population with Czechoslovakian ancestry, and the table below shows the ranking of the top 200 counties.
You can see similar information for other ancestry groups in the US.
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Related Topics: US Census 2021 Topic List.
Data Source: US Census Bureau.
Ranking of US Counties By Percentage of Population with Czechoslovakian Ancestry in 2021
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| Rank | County | Percentage of Pop. |
|---|---|---|
| 1 | Shiawassee County, MI | 0.79 |
| 2 | Jefferson County, OH | 0.73 |
| 3 | Ashland County, OH | 0.64 |
| 4 | Butler County, PA | 0.63 |
| 5 | Rice County, MN | 0.58 |
| 6 | Carbon County, PA | 0.53 |
| 7 | Washington County, PA | 0.52 |
| 8 | Cambria County, PA | 0.51 |
| 9 | Story County, IA | 0.47 |
| 9 | Geauga County, OH | 0.47 |
| 9 | Portage County, OH | 0.47 |
| 10 | Monroe County, FL | 0.44 |
| 11 | Union County, OH | 0.42 |
| 12 | Scott County, MN | 0.41 |
| 13 | Fayette County, PA | 0.40 |
| 14 | Broome County, NY | 0.39 |
| 15 | Carver County, MN | 0.38 |
| 15 | Lewis County, WA | 0.38 |
| 16 | Garfield County, CO | 0.37 |
| 16 | Clay County, MN | 0.37 |
| 16 | Westmoreland County, PA | 0.37 |
| 17 | Schuylkill County, PA | 0.36 |
| 18 | Somerset County, ME | 0.35 |
| 18 | Centre County, PA | 0.35 |
| 19 | Medina County, OH | 0.34 |
| 20 | Linn County, IA | 0.33 |
| 20 | Hunterdon County, NJ | 0.33 |
| 20 | Grand Forks County, ND | 0.33 |
| 21 | Clinton County, MI | 0.32 |
| 21 | Sarpy County, NE | 0.32 |
| 21 | Chemung County, NY | 0.32 |
| 21 | Jackson County, OR | 0.32 |
| 22 | St. Francois County, MO | 0.31 |
| 22 | Luzerne County, PA | 0.31 |
| 22 | Washington County, WI | 0.31 |
| 23 | Martin County, FL | 0.29 |
| 23 | Cascade County, MT | 0.29 |
| 23 | Douglas County, NE | 0.29 |
| 23 | Hall County, NE | 0.29 |
| 23 | Columbiana County, OH | 0.29 |
| 23 | Indiana County, PA | 0.29 |
| 24 | Mesa County, CO | 0.28 |
| 24 | Barry County, MI | 0.28 |
| 24 | Fulton County, NY | 0.28 |
| 24 | Beaver County, PA | 0.28 |
| 24 | Chippewa County, WI | 0.28 |
| 24 | Columbia County, WI | 0.28 |
| 24 | Waukesha County, WI | 0.28 |
| 25 | Erie County, OH | 0.27 |
| 25 | Mahoning County, OH | 0.27 |
| 25 | Douglas County, OR | 0.27 |
| 25 | Allegheny County, PA | 0.27 |
| 26 | Saline County, KS | 0.26 |
| 26 | Lancaster County, NE | 0.26 |
| 26 | Cuyahoga County, OH | 0.26 |
| 26 | Lorain County, OH | 0.26 |
| 26 | Fauquier County, VA | 0.26 |
| 26 | Ozaukee County, WI | 0.26 |
| 27 | Pottawattamie County, IA | 0.25 |
| 27 | Genesee County, MI | 0.25 |
| 27 | Isabella County, MI | 0.25 |
| 27 | Wright County, MN | 0.25 |
| 27 | Lewis and Clark County, MT | 0.25 |
| 27 | Richland County, OH | 0.25 |
| 27 | Stark County, OH | 0.25 |
| 27 | Clearfield County, PA | 0.25 |
| 27 | Crawford County, PA | 0.25 |
| 27 | Comal County, TX | 0.25 |
| 28 | Cecil County, MD | 0.24 |
| 28 | Dakota County, MN | 0.24 |
| 28 | Cass County, ND | 0.24 |
| 28 | Belmont County, OH | 0.24 |
| 28 | Pennington County, SD | 0.24 |
| 28 | Skagit County, WA | 0.24 |
| 28 | Rock County, WI | 0.24 |
| 29 | Johnson County, IA | 0.23 |
| 29 | Livingston County, NY | 0.23 |
| 29 | Rockland County, NY | 0.23 |
| 29 | Summit County, OH | 0.23 |
| 29 | Wood County, OH | 0.23 |
| 29 | Columbia County, OR | 0.23 |
| 29 | Lehigh County, PA | 0.23 |
| 30 | Will County, IL | 0.22 |
| 30 | Lawrence County, PA | 0.22 |
| 30 | Stafford County, VA | 0.22 |
| 31 | Douglas County, CO | 0.21 |
| 31 | Litchfield County, CT | 0.21 |
| 31 | Highlands County, FL | 0.21 |
| 31 | DeKalb County, IL | 0.21 |
| 31 | Madison County, IL | 0.21 |
| 31 | Carroll County, MD | 0.21 |
| 31 | Anoka County, MN | 0.21 |
| 31 | Somerset County, NJ | 0.21 |
| 31 | Huron County, OH | 0.21 |
| 31 | Trumbull County, OH | 0.21 |
| 31 | Oconee County, SC | 0.21 |
| 31 | Ellis County, TX | 0.21 |
| 31 | Van Zandt County, TX | 0.21 |
| 31 | La Crosse County, WI | 0.21 |
| 31 | Sauk County, WI | 0.21 |
| 32 | Boulder County, CO | 0.20 |
| 32 | Jackson County, IL | 0.20 |
| 32 | Sherburne County, MN | 0.20 |
| 32 | Warren County, NJ | 0.20 |
| 32 | Saratoga County, NY | 0.20 |
| 32 | Washington County, NY | 0.20 |
| 32 | Delaware County, OH | 0.20 |
| 32 | Greene County, OH | 0.20 |
| 32 | Lake County, OH | 0.20 |
| 32 | Walworth County, WI | 0.20 |
| 33 | Chatham County, GA | 0.19 |
| 33 | Sangamon County, IL | 0.19 |
| 33 | Sussex County, NJ | 0.19 |
| 33 | Otsego County, NY | 0.19 |
| 33 | Monroe County, PA | 0.19 |
| 33 | Somerset County, PA | 0.19 |
| 33 | Rockwall County, TX | 0.19 |
| 33 | St. Croix County, WI | 0.19 |
| 33 | Winnebago County, WI | 0.19 |
| 34 | La Plata County, CO | 0.18 |
| 34 | Putnam County, FL | 0.18 |
| 34 | Porter County, IN | 0.18 |
| 34 | Lapeer County, MI | 0.18 |
| 34 | Marquette County, MI | 0.18 |
| 34 | Saginaw County, MI | 0.18 |
| 34 | Hennepin County, MN | 0.18 |
| 34 | Olmsted County, MN | 0.18 |
| 34 | Ocean County, NJ | 0.18 |
| 34 | Klamath County, OR | 0.18 |
| 34 | Erie County, PA | 0.18 |
| 34 | Kaufman County, TX | 0.18 |
| 34 | Waller County, TX | 0.18 |
| 34 | Walla Walla County, WA | 0.18 |
| 34 | Eau Claire County, WI | 0.18 |
| 34 | Kenosha County, WI | 0.18 |
| 34 | Manitowoc County, WI | 0.18 |
| 35 | Black Hawk County, IA | 0.17 |
| 35 | Butler County, KS | 0.17 |
| 35 | Douglas County, KS | 0.17 |
| 35 | Shawnee County, KS | 0.17 |
| 35 | Worcester County, MD | 0.17 |
| 35 | Kent County, MI | 0.17 |
| 35 | St. Clair County, MI | 0.17 |
| 35 | Crow Wing County, MN | 0.17 |
| 35 | Cayuga County, NY | 0.17 |
| 35 | Putnam County, NY | 0.17 |
| 35 | Tuscarawas County, OH | 0.17 |
| 35 | Armstrong County, PA | 0.17 |
| 35 | Northampton County, PA | 0.17 |
| 35 | Newport County, RI | 0.17 |
| 35 | Racine County, WI | 0.17 |
| 36 | Larimer County, CO | 0.16 |
| 36 | Collier County, FL | 0.16 |
| 36 | Sumter County, FL | 0.16 |
| 36 | Walton County, GA | 0.16 |
| 36 | Ada County, ID | 0.16 |
| 36 | Boone County, IL | 0.16 |
| 36 | DuPage County, IL | 0.16 |
| 36 | Grundy County, IL | 0.16 |
| 36 | LaSalle County, IL | 0.16 |
| 36 | McHenry County, IL | 0.16 |
| 36 | Wyandotte County, KS | 0.16 |
| 36 | Frederick County, MD | 0.16 |
| 36 | Lenawee County, MI | 0.16 |
| 36 | Midland County, MI | 0.16 |
| 36 | Monmouth County, NJ | 0.16 |
| 36 | Linn County, OR | 0.16 |
| 36 | Lackawanna County, PA | 0.16 |
| 36 | Brazos County, TX | 0.16 |
| 36 | Victoria County, TX | 0.16 |
| 36 | Harrison County, WV | 0.16 |
| 36 | Monongalia County, WV | 0.16 |
| 36 | Portage County, WI | 0.16 |
| 36 | Laramie County, WY | 0.16 |
| 37 | Baldwin County, AL | 0.15 |
| 37 | Hartford County, CT | 0.15 |
| 37 | Lake County, IL | 0.15 |
| 37 | Peoria County, IL | 0.15 |
| 37 | Dallas County, IA | 0.15 |
| 37 | Hancock County, ME | 0.15 |
| 37 | Oakland County, MI | 0.15 |
| 37 | Missoula County, MT | 0.15 |
| 37 | Morris County, NJ | 0.15 |
| 37 | Warren County, NY | 0.15 |
| 37 | Ashtabula County, OH | 0.15 |
| 37 | Grady County, OK | 0.15 |
| 37 | Washington County, OR | 0.15 |
| 37 | Bucks County, PA | 0.15 |
| 37 | Hanover County, VA | 0.15 |
| 37 | Pittsylvania County, VA | 0.15 |
| 37 | Spotsylvania County, VA | 0.15 |
| 37 | Brown County, WI | 0.15 |
| 37 | Dane County, WI | 0.15 |
| 38 | Anchorage Municipality, AK | 0.14 |
| 38 | Butte County, CA | 0.14 |
| 38 | Marin County, CA | 0.14 |
| 38 | Tehama County, CA | 0.14 |
| 38 | Middlesex County, CT | 0.14 |
| 38 | Tolland County, CT | 0.14 |
| 38 | Clay County, FL | 0.14 |