Ranking of US States By Percentage of Population with Irish Ancestry in 2021
Updated on March 8, 2024.
Based on the US Census ACS-5Yrs estimates, in 2021, among all US states and DC, New Hampshire had the highest percentage of population with Irish ancestry (20.50%), followed by Massachusetts (19.24%), and Rhode Island (17.03%).
The chart below shows the top 10 states, and the table below shows the ranking of all states and DC.
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 - ACS 5-Year Estimates (2021).
Ranking of US States By Percentage of Population with Irish Ancestry in 2021
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| Rank | State | Percentage of Population (%) |
|---|---|---|
| 1 | New Hampshire | 20.50 |
| 2 | Massachusetts | 19.24 |
| 3 | Rhode Island | 17.03 |
| 4 | Maine | 16.38 |
| 5 | Vermont | 16.27 |
| 6 | Pennsylvania | 15.21 |
| 7 | Connecticut | 14.67 |
| 8 | Delaware | 14.22 |
| 9 | Montana | 13.57 |
| 10 | New Jersey | 12.84 |
| 11 | Iowa | 12.83 |
| 12 | West Virginia | 12.66 |
| 13 | Ohio | 12.62 |
| 14 | Missouri | 12.21 |
| 15 | Nebraska | 11.78 |
| 16 | Wyoming | 11.58 |
| 17 | Kansas | 11.25 |
| 18 | Kentucky | 11.16 |
| 19 | Oregon | 11.02 |
| 20 | Illinois | 10.90 |
| 21 | New York | 10.88 |
| 22 | Colorado | 10.84 |
| 23 | Wisconsin | 10.46 |
| 24 | Indiana | 10.38 |
| 25 | Washington | 10.08 |
| 26 | Michigan | 10.01 |
| 27 | Minnesota | 10.00 |
| 28 | Oklahoma | 9.94 |
| 29 | South Dakota | 9.89 |
| 30 | Alaska | 9.71 |
| 31 | Maryland | 9.65 |
| 32 | Arkansas | 9.30 |
| 32 | Tennessee | 9.30 |
| 33 | Idaho | 9.14 |
| 34 | Virginia | 9.05 |
| 35 | Arizona | 8.69 |
| 36 | South Carolina | 8.61 |
| 37 | Florida | 8.26 |
| 38 | North Carolina | 8.15 |
| 39 | Nevada | 8.01 |
| 40 | Alabama | 7.95 |
| 41 | North Dakota | 7.44 |
| 42 | District of Columbia | 7.34 |
| 43 | Mississippi | 6.93 |
| 44 | Georgia | 6.90 |
| 45 | Louisiana | 6.57 |
| 46 | New Mexico | 6.15 |
| 47 | Texas | 6.01 |
| 48 | Utah | 5.94 |
| 49 | California | 5.88 |
| 50 | Hawaii | 4.36 |