RANKING · 2020 CENSUS · 51 SHOWN OF 51

Highest Irish population share, US states · 2020

US states ranked by the share of all residents who are Irish ancestry (2020 American Community Survey). A concentration measure: Irish residents as a percentage of total population. New Hampshire leads at 20.6%. 51 states qualify in total. The top 25 average 13.4%, against an all-states median of 10.2%.

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SAME RANKING BYCities Counties Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPIRISH SHAREVS 2010

USUnited States331,449,2819.6%–

01New Hampshire, NHNH1,394,86820.6%−1.7 pts

02Massachusetts, MAMA7,044,05619.7%−3.7 pts

03Rhode Island, RIRI1,101,80117.2%−2.9 pts

04Maine, MEME1,387,81716.7%−1.3 pts

05Vermont, VTVT647,10616.5%−1.4 pts

06Pennsylvania, PAPA13,018,63915.5%−2.4 pts

07Connecticut, CTCT3,624,50815.0%−2.3 pts

08Delaware, DEDE1,021,19114.2%−4.0 pts

09Montana, MTMT1,116,87513.6%−2.5 pts

10New Jersey, NJNJ9,343,80913.3%−2.4 pts

11Iowa, IAIA3,210,50713.0%−2.4 pts

12West Virginia, WVWV1,778,37312.9%−2.3 pts

13Ohio, OHOH11,810,29312.7%−1.8 pts

14Missouri, MOMO6,191,81412.3%−2.5 pts

15Nebraska, NENE1,978,70711.9%−2.7 pts

16Wyoming, WYWY582,39711.5%−3.2 pts

17Kansas, KSKS2,947,19711.3%−2.5 pts

18Kentucky, KYKY4,534,82411.2%−2.5 pts

19New York, NYNY19,852,36611.1%−2.2 pts

20Illinois, ILIL12,694,79811.0%−1.9 pts

21Oregon, OROR4,254,29311.0%−1.9 pts

22Colorado, COCO5,862,18910.9%−2.0 pts

23Wisconsin, WIWI5,914,87210.6%−1.1 pts

24Indiana, ININ6,851,07310.4%−2.5 pts

25Michigan, MIMI10,077,76110.2%−1.7 pts

26Oklahoma, OKOK4,028,63410.2%−2.9 pts

27South Dakota, SDSD907,42810.1%−1.0 pts

28Washington, WAWA7,816,11610.1%−2.2 pts

29Minnesota, MNMN5,739,44510.0%−1.4 pts

30Maryland, MDMD6,206,0119.8%−2.3 pts

31Alaska, AKAK735,7069.7%−2.7 pts

32Arkansas, ARAR3,049,3919.4%−3.9 pts

33Tennessee, TNTN7,066,3839.3%−2.0 pts

34Idaho, IDID1,934,2629.1%−1.7 pts

35Virginia, VAVA8,705,1709.0%−1.8 pts

36Arizona, AZAZ7,378,8388.6%−2.1 pts

37South Carolina, SCSC5,296,2258.6%−1.1 pts

38Florida, FLFL22,416,0778.4%−2.3 pts

39Nevada, NVNV3,184,6128.1%−2.2 pts

40North Carolina, NCNC10,730,4048.0%−1.5 pts

41Alabama, ALAL5,086,7688.0%−2.4 pts

42North Dakota, NDND784,8417.4%−0.7 pts

43District of Columbia, DCDC681,2947.1%+0.3 pts

44Georgia, GAGA10,940,4077.0%−2.1 pts

45Mississippi, MSMS2,946,7796.8%−2.9 pts

46Louisiana, LALA4,611,9616.5%−1.5 pts

47Texas, TXTX30,188,4246.1%−1.8 pts

48New Mexico, NMNM2,120,2466.1%−1.5 pts

49California, CACA39,287,3775.9%−1.6 pts

50Utah, UTUT3,392,3315.9%−0.3 pts

51Hawaii, HIHI1,445,2354.4%−0.6 pts

SHOWING 1–51 OF 51

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

Frequently asked

Which state has the highest irish share?

New Hampshire ranks #1 with 20.6% (2020 Decennial Census).

What are the top 5 states by irish share?

New Hampshire, Massachusetts, Rhode Island, Maine, Vermont.

How many states are in this ranking?

51 states qualify after filtering for population minimums and data availability. The ranking covers 2020 Decennial Census data.

How is irish share measured?

Share of all residents who are Irish ancestry (Ancestry, ACS detailed tables). Source: US Census Bureau, 2020 Decennial Census.