RANKING · 2010 CENSUS · 51 SHOWN OF 51

Largest Irish population, US states · 2010

US states ranked by the number of residents who are Irish ancestry, from the 2010 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. California leads at 2,748,155. 51 states qualify in total. The top 25 average 1,183,631, against an all-states median of 487,695.

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SAME RANKING BYCities Counties Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPIRISH POPULATIONVS –

USUnited States11.6% of US population308,745,53835,751,133–

01California, CACA39,287,3772,748,155–

02New York, NYNY19,852,3662,565,911–

03Pennsylvania, PAPA13,018,6392,251,268–

04Florida, FLFL22,416,0771,979,058–

05Texas, TXTX30,188,4241,911,731–

06Ohio, OHOH11,810,2931,666,746–

07Illinois, ILIL12,694,7981,648,843–

08Massachusetts, MAMA7,044,0561,516,205–

09New Jersey, NJNJ9,343,8091,370,783–

10Michigan, MIMI10,077,7611,186,068–

11North Carolina, NCNC10,730,404879,734–

12Missouri, MOMO6,191,814876,760–

13Georgia, GAGA10,940,407862,101–

14Virginia, VAVA8,705,170845,190–

15Indiana, ININ6,851,073827,853–

16Washington, WAWA7,816,116806,874–

17Tennessee, TNTN7,066,383704,259–

18Maryland, MDMD6,206,011693,953–

19Arizona, AZAZ7,378,838667,632–

20Wisconsin, WIWI5,914,872660,884–

21Colorado, COCO5,862,189628,925–

22Connecticut, CTCT3,624,508614,767–

23Minnesota, MNMN5,739,445599,902–

24Kentucky, KYKY4,534,824586,154–

25Alabama, ALAL5,086,768491,029–

26Oregon, OROR4,254,293487,695–

27Oklahoma, OKOK4,028,634478,190–

28Iowa, IAIA3,210,507464,920–

29South Carolina, SCSC5,296,225435,909–

30Kansas, KSKS2,947,197387,825–

31Arkansas, ARAR3,049,391381,337–

32Louisiana, LALA4,611,961358,347–

33New Hampshire, NHNH1,394,868292,826–

34Mississippi, MSMS2,946,779285,021–

35West Virginia, WVWV1,778,373278,642–

36Nevada, NVNV3,184,612271,932–

37Nebraska, NENE1,978,707264,065–

38Maine, MEME1,387,817237,955–

39Rhode Island, RIRI1,101,801211,879–

40Idaho, IDID1,934,262165,249–

41Utah, UTUT3,392,331164,050–

42Delaware, DEDE1,021,191160,416–

43Montana, MTMT1,116,875157,032–

44New Mexico, NMNM2,120,246151,928–

45Vermont, VTVT647,106111,761–

46South Dakota, SDSD907,42888,995–

47Alaska, AKAK735,70685,326–

48Wyoming, WYWY582,39779,785–

49Hawaii, HIHI1,445,23566,244–

50North Dakota, NDND784,84153,397–

51District of Columbia, DCDC681,29439,622–

SHOWING 1–51 OF 51

Download CSV (full list, 51 rows)

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS

Frequently asked

Which state has the highest irish population?

California ranks #1 with 2,748,155 (2010 Decennial Census).

What are the top 5 states by irish population?

California, New York, Pennsylvania, Florida, Texas.

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 irish population measured?

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