Ranking of Missouri Counties By Percentage of Population with Irish Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 750.02K people in Missouri with Irish ancestry (12.21% of Missouri population). Among all Missouri counties, Ripley County had the highest percentage of its population with Irish ancestry (17.31%), followed by DeKalb County (17.05%), and Hickory County (16.74%).
The chart and table below shows the top 10 counties with high percentage of its population having Irish ancestry.
You can see similar information for other states and for other ancestry groups in Missouri.
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Related Topics: Missouri ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Ranking of Missouri Counties By Percentage of Population with Irish Ancestry in 2021
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| Rank | County | Percentage of Pop. (%) |
|---|---|---|
| 1 | Ripley County | 17.31 |
| 2 | DeKalb County | 17.05 |
| 3 | Hickory County | 16.74 |
| 4 | St. Charles County | 16.30 |
| 5 | New Madrid County | 16.24 |
| 6 | Reynolds County | 16.10 |
| 7 | Washington County | 15.70 |
| 8 | Jefferson County | 15.51 |
| 9 | Carter County | 15.10 |
| 10 | Franklin County | 15.01 |
| 11 | Crawford County | 14.77 |
| 12 | Laclede County | 14.60 |
| 13 | Atchison County | 14.35 |
| 14 | Gasconade County | 14.13 |
| 15 | Oregon County | 14.04 |
| 16 | Christian County | 14.00 |
| 17 | Bates County | 13.94 |
| 18 | Platte County | 13.93 |
| 19 | Worth County | 13.92 |
| 20 | Cass County | 13.86 |
| 21 | Butler County | 13.83 |
| 22 | Ray County | 13.76 |
| 23 | Maries County | 13.71 |
| 24 | Polk County | 13.70 |
| 25 | Clinton County | 13.69 |
| 26 | Johnson County | 13.64 |
| 27 | Stoddard County | 13.51 |
| 28 | Clay County | 13.38 |
| 29 | Clark County | 13.37 |
| 29 | Vernon County | 13.37 |
| 30 | Henry County | 13.32 |
| 30 | Lawrence County | 13.32 |
| 31 | Lincoln County | 13.19 |
| 31 | Randolph County | 13.19 |
| 32 | Dunklin County | 13.14 |
| 33 | Montgomery County | 13.12 |
| 34 | Monroe County | 13.06 |
| 35 | Stone County | 13.00 |
| 36 | Miller County | 12.97 |
| 37 | Wright County | 12.78 |
| 38 | Warren County | 12.77 |
| 39 | St. Louis County | 12.71 |
| 40 | St. Francois County | 12.70 |
| 41 | Ralls County | 12.69 |
| 42 | Buchanan County | 12.63 |
| 43 | Iron County | 12.62 |
| 44 | Taney County | 12.53 |
| 45 | Webster County | 12.46 |
| 46 | Shannon County | 12.23 |
| 47 | Boone County | 12.16 |
| 48 | Cedar County | 12.14 |
| 49 | Benton County | 11.92 |
| 50 | Jasper County | 11.85 |
| 51 | Ozark County | 11.75 |
| 52 | Andrew County | 11.70 |
| 52 | Newton County | 11.70 |
| 53 | Douglas County | 11.64 |
| 54 | Callaway County | 11.60 |
| 54 | Holt County | 11.60 |
| 55 | Camden County | 11.58 |
| 56 | Moniteau County | 11.30 |
| 57 | Wayne County | 11.22 |
| 58 | Dent County | 11.21 |
| 59 | Nodaway County | 11.16 |
| 60 | Marion County | 11.15 |
| 61 | Barton County | 11.14 |
| 62 | Adair County | 11.05 |
| 63 | Macon County | 10.96 |
| 64 | Gentry County | 10.91 |
| 65 | Jackson County | 10.88 |
| 66 | Phelps County | 10.81 |
| 67 | Harrison County | 10.57 |
| 68 | Pike County | 10.36 |
| 69 | Ste. Genevieve County | 10.32 |
| 70 | Dade County | 10.27 |
| 71 | Greene County | 10.25 |
| 72 | Pemiscot County | 10.24 |
| 73 | Pettis County | 10.21 |
| 74 | Pulaski County | 10.14 |
| 74 | Saline County | 10.14 |
| 75 | Daviess County | 9.92 |
| 76 | Madison County | 9.84 |
| 77 | St. Louis city | 9.74 |
| 78 | Howell County | 9.69 |
| 79 | Carroll County | 9.65 |
| 80 | Mercer County | 9.58 |
| 81 | Perry County | 9.52 |
| 82 | Audrain County | 9.40 |
| 83 | Lafayette County | 9.31 |
| 84 | Texas County | 9.29 |
| 85 | Cooper County | 9.16 |
| 86 | Scott County | 9.15 |
| 87 | Cole County | 9.14 |
| 88 | St. Clair County | 8.85 |
| 89 | Grundy County | 8.80 |
| 90 | Lewis County | 8.73 |
| 91 | Howard County | 8.72 |
| 92 | Barry County | 8.71 |
| 93 | Morgan County | 8.63 |
| 94 | Linn County | 8.55 |
| 95 | Cape Girardeau County | 8.53 |
| 95 | Livingston County | 8.53 |
| 96 | Dallas County | 8.46 |
| 97 | Bollinger County | 8.38 |
| 98 | Caldwell County | 8.19 |
| 99 | Mississippi County | 8.08 |
| 100 | Shelby County | 7.57 |
| 101 | Putnam County | 7.47 |
| 102 | Osage County | 7.44 |
| 103 | Schuyler County | 6.94 |
| 104 | McDonald County | 6.41 |
| 105 | Sullivan County | 6.07 |
| 106 | Chariton County | 5.91 |
| 107 | Scotland County | 4.98 |
| 108 | Knox County | 4.15 |