RANKING · 2020 CENSUS · 62 SHOWN OF 62

Largest Irish population, New York counties · 2020

New York counties ranked by the number of residents who are Irish ancestry, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 62 counties in New York that qualify, ranked against each other statewide.

Irish Americans: full group profile →

New YorkAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPIRISH POPULATIONVS 2010

01Suffolk County, NYNY1,546,090261,068−23%

02Nassau County, NYNY1,398,939178,525−21%

03Erie County, NYNY946,741149,406−9%

04New York County, NYNY1,664,862113,165−4%

05Westchester County, NYNY1,015,743112,906−9%

06Monroe County, NYNY750,506104,879−15%

07Kings County, NYNY2,653,96396,320+13%

08Onondaga County, NYNY466,58491,020−16%

09Queens County, NYNY2,358,18285,995−18%

10Albany County, NYNY321,22562,649−14%

11Dutchess County, NYNY300,70855,750−21%

12Saratoga County, NYNY241,34354,259+4%

13Orange County, NYNY417,66953,589−29%

14Richmond County, NYNY501,29051,018−21%

15Rensselaer County, NYNY160,51040,205−7%

16Rockland County, NYNY357,39738,908−18%

17Ulster County, NYNY183,33036,397−6%

18Broome County, NYNY195,73635,428−19%

19Oneida County, NYNY226,39232,881−28%

20Niagara County, NYNY208,91232,584−18%

21Schenectady County, NYNY162,58127,259+2%

22Bronx County, NYNY1,406,33225,660−33%

23Oswego County, NYNY118,56923,658−15%

24Putnam County, NYNY99,02820,016−27%

25Ontario County, NYNY113,13018,823−15%

26Jefferson County, NYNY111,54017,671−24%

27Cayuga County, NYNY74,36516,889−14%

28Chautauqua County, NYNY124,12616,200−20%

29Steuben County, NYNY91,85515,822−20%

30St. Lawrence County, NYNY105,48815,612−21%

31Chemung County, NYNY80,41514,611−18%

32Wayne County, NYNY91,25014,026−8%

33Warren County, NYNY65,02013,949−10%

34Cattaraugus County, NYNY75,39013,911−14%

35Tompkins County, NYNY104,04712,658−12%

36Clinton County, NYNY78,13812,289−9%

37Sullivan County, NYNY80,58612,044−21%

38Madison County, NYNY67,12012,035−13%

39Livingston County, NYNY61,43811,914−21%

40Washington County, NYNY59,35311,524−17%

41Columbia County, NYNY60,16811,339−8%

42Herkimer County, NYNY59,21910,925−22%

43Otsego County, NYNY60,58910,886−8%

44Franklin County, NYNY46,5009,165−2%

45Genesee County, NYNY58,4168,752−23%

46Delaware County, NYNY44,3058,387−18%

47Tioga County, NYNY47,4538,073−12%

48Allegany County, NYNY46,8008,002−14%

49Chenango County, NYNY45,7157,556−11%

50Fulton County, NYNY52,2167,440−27%

51Greene County, NYNY47,2387,436−18%

52Essex County, NYNY36,4386,989−20%

53Cortland County, NYNY45,8506,845−22%

54Montgomery County, NYNY50,0466,832−15%

55Orleans County, NYNY39,8256,480−14%

56Wyoming County, NYNY39,7416,374−6%

57Seneca County, NYNY32,8835,745−12%

58Schoharie County, NYNY30,1765,725−22%

59Lewis County, NYNY26,4793,895−14%

60Yates County, NYNY24,5473,292−38%

61Schuyler County, NYNY16,9243,009−10%

62Hamilton County, NYNY5,006750−33%

SHOWING 1–62 OF 62

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS