RANKING · 2010 CENSUS · 51 SHOWN OF 51

Highest Scotch-Irish population share, US states · 2010

US states ranked by the share of all residents who are Scotch-Irish ancestry (2010 American Community Survey). A concentration measure: Scotch-Irish residents as a percentage of total population. Maine leads at 3.7%. 51 states qualify in total. The top 25 average 2.5%, against an all-states median of 1.7%.

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SAME RANKING BYCities Counties Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPSCOTCH-IRISH SHAREVS –

USUnited States308,745,5381.7%–

01Maine, MEME1,387,8173.7%–

02North Carolina, NCNC10,730,4043.7%–

03South Carolina, SCSC5,296,2253.4%–

04Tennessee, TNTN7,066,3833.2%–

05Wyoming, WYWY582,3973.0%–

06West Virginia, WVWV1,778,3732.8%–

07Vermont, VTVT647,1062.7%–

08New Hampshire, NHNH1,394,8682.6%–

09Montana, MTMT1,116,8752.6%–

10Virginia, VAVA8,705,1702.6%–

11Oregon, OROR4,254,2932.6%–

12Washington, WAWA7,816,1162.5%–

13Alabama, ALAL5,086,7682.4%–

14Alaska, AKAK735,7062.4%–

15Mississippi, MSMS2,946,7792.3%–

16Colorado, COCO5,862,1892.2%–

17Kentucky, KYKY4,534,8242.1%–

18Kansas, KSKS2,947,1972.1%–

19Arkansas, ARAR3,049,3912.0%–

20Idaho, IDID1,934,2622.0%–

21Pennsylvania, PAPA13,018,6392.0%–

22Missouri, MOMO6,191,8141.9%–

23Georgia, GAGA10,940,4071.9%–

24Massachusetts, MAMA7,044,0561.9%–

25Oklahoma, OKOK4,028,6341.9%–

26Delaware, DEDE1,021,1911.7%–

27Arizona, AZAZ7,378,8381.7%–

28Texas, TXTX30,188,4241.7%–

29Ohio, OHOH11,810,2931.7%–

30New Mexico, NMNM2,120,2461.6%–

31Nebraska, NENE1,978,7071.6%–

32Michigan, MIMI10,077,7611.6%–

33Florida, FLFL22,416,0771.6%–

34Iowa, IAIA3,210,5071.5%–

35Indiana, ININ6,851,0731.5%–

36Rhode Island, RIRI1,101,8011.4%–

37Maryland, MDMD6,206,0111.4%–

38Nevada, NVNV3,184,6121.4%–

39Connecticut, CTCT3,624,5081.4%–

40Utah, UTUT3,392,3311.3%–

41Louisiana, LALA4,611,9611.3%–

42North Dakota, NDND784,8411.2%–

43California, CACA39,287,3771.2%–

44South Dakota, SDSD907,4281.2%–

45Illinois, ILIL12,694,7981.1%–

46District of Columbia, DCDC681,2941.0%–

47Minnesota, MNMN5,739,4451.0%–

48New Jersey, NJNJ9,343,8091.0%–

49Hawaii, HIHI1,445,2350.9%–

50New York, NYNY19,852,3660.9%–

51Wisconsin, WIWI5,914,8720.9%–

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 scotch-irish share?

Maine ranks #1 with 3.7% (2010 Decennial Census).

What are the top 5 states by scotch-irish share?

Maine, North Carolina, South Carolina, Tennessee, Wyoming.

How many states are in this ranking?

51 states qualify after filtering for population minimums and data availability. The ranking covers 2010 Decennial Census data.

How is scotch-irish share measured?

Share of all residents who are Scotch-Irish ancestry (Ancestry, ACS detailed tables). Source: US Census Bureau, 2010 Decennial Census.