RANKING · 2020 CENSUS · 500 SHOWN OF 3,134

Highest Irish population share, US counties · 2020

US counties 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. Cape May County, New Jersey leads at 30.1%. 3,134 counties qualify in total. Pennsylvania carries 5 of the top 25 entries.

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SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPIRISH SHAREVS 2010

USUnited States331,449,2819.6%–

01Cape May County, NJNJ93,39030.1%−0.8 pts

02Plymouth County, MAMA546,82930.0%−3.8 pts

03Barnstable County, MAMA233,53926.7%−0.3 pts

04Gloucester County, NJNJ312,63826.7%−1.7 pts

05Silver Bow County, MTMT36,11825.6%−7.1 pts

06Norfolk County, MAMA739,74925.5%−6.3 pts

07Washington County, RIRI129,79525.5%−2.3 pts

08Rensselaer County, NYNY160,51025.3%−2.1 pts

09Lackawanna County, PAPA216,50225.2%−2.3 pts

10Rockingham County, NHNH324,07724.5%−2.4 pts

11Delaware County, PAPA580,93724.0%−4.7 pts

12Carroll County, NHNH52,78423.9%−0.8 pts

13Bucks County, PAPA647,82823.9%−2.9 pts

14Kent County, RIRI173,49523.8%−2.9 pts

15Pike County, PAPA62,80823.8%+1.4 pts

16Saratoga County, NYNY241,34323.7%−0.4 pts

17Greeley County, NENE2,15423.4%−8.2 pts

18Newport County, RIRI83,05123.0%−2.6 pts

19Deer Lodge County, MTMT9,70922.1%−4.1 pts

20Cayuga County, NYNY74,36521.9%−2.4 pts

21Warren County, NYNY65,02021.7%−1.8 pts

22Sussex County, NJNJ148,06321.7%−5.5 pts

23Skagway, AKAK1,10421.5%−4.8 pts

24Chester County, PAPA557,11621.4%−2.9 pts

25Dukes County, MAMA21,21921.3%+2.8 pts

26Wheeler County, NENE78921.2%+5.3 pts

27Monmouth County, NJNJ651,03521.2%−2.2 pts

28Hillsborough County, NHNH433,41520.8%−2.0 pts

29Warren County, NJNJ112,95320.8%−0.3 pts

30Strafford County, NHNH135,04320.8%+1.0 pts

31Stone County, ARAR12,70320.7%−2.1 pts

32Albany County, NYNY321,22520.5%−3.5 pts

33Ulster County, NYNY183,33020.4%−0.7 pts

34Putnam County, NYNY99,02820.3%−7.4 pts

35Montgomery County, PAPA877,64320.3%−2.3 pts

36Susquehanna County, PAPA38,23720.2%−1.1 pts

37Ocean County, NJNJ673,74620.2%−3.2 pts

38Dubuque County, IAIA99,38120.2%−3.1 pts

39McIntosh County, OKOK19,75820.2%+6.0 pts

40Essex County, MAMA826,65320.1%−3.2 pts

41Oswego County, NYNY118,56920.1%−2.8 pts

42Fallon County, MTMT2,95919.9%−4.9 pts

43Sullivan County, PAPA5,85619.9%−0.7 pts

44Hardeman County, TXTX3,29219.8%+6.2 pts

45Salem County, NJNJ66,28019.8%−0.7 pts

46Meagher County, MTMT2,13719.8%+6.1 pts

47Butler County, PAPA200,16919.7%−1.9 pts

48Onondaga County, NYNY466,58419.7%−3.5 pts

49Grand County, UTUT9,79019.7%+8.7 pts

50Belknap County, NHNH65,14719.6%−1.0 pts

51Cumberland County, MEME317,22219.6%−1.6 pts

52Powell County, MTMT7,15719.6%+0.4 pts

53Hancock County, WVWV27,72919.5%+0.8 pts

54Mason County, TXTX3,99019.4%+5.3 pts

55Middlesex County, MAMA1,669,97919.3%−4.3 pts

56West Carroll Parish, LALA9,15619.2%+10.4 pts

57Crawford County, WIWI15,91019.1%+2.6 pts

58Hunterdon County, NJNJ131,78119.1%−4.4 pts

59Dutchess County, NYNY300,70819.0%−4.9 pts

60Gallatin County, ILIL4,61619.0%−4.0 pts

61Grant County, NENE56119.0%−4.8 pts

62Monroe County, IAIA7,40618.9%−1.8 pts

63Columbia County, NYNY60,16818.9%−0.6 pts

64Wayne County, PAPA51,70318.9%−5.4 pts

65Livingston County, NYNY61,43818.8%−4.1 pts

66Washington County, NYNY59,35318.8%−3.2 pts

67Delaware County, NYNY44,30518.8%−2.3 pts

68Thomas County, NENE63918.8%+2.5 pts

69Burlington County, NJNJ481,43918.8%−3.3 pts

70Latimer County, OKOK9,64518.8%+2.9 pts

71Izard County, ARAR14,40518.7%−3.3 pts

72Essex County, NYNY36,43818.7%−3.5 pts

73Bristol County, RIRI50,00118.7%−3.4 pts

74Bennington County, VTVT36,63018.7%−0.1 pts

75Merrimack County, NHNH158,07818.5%−1.9 pts

76Worcester County, MAMA888,50218.5%−3.7 pts

77Broome County, NYNY195,73618.4%−3.4 pts

78Palo Alto County, IAIA8,89918.4%+0.4 pts

79York County, MEME222,43418.4%−0.9 pts

80Madison County, MTMT10,02618.4%−0.5 pts

81Franklin County, MAMA70,69818.4%−1.4 pts

82Schoharie County, NYNY30,17618.4%−4.1 pts

83Newton County, ININ14,18818.3%+1.4 pts

84Nowata County, OKOK9,52218.3%−0.5 pts

85Cheshire County, NHNH78,26918.3%−0.9 pts

86Otsego County, NYNY60,58918.3%−0.6 pts

87Chittenden County, VTVT169,11518.2%−0.9 pts

88Franklin County, NYNY46,50018.2%+0.0 pts

89Camden County, NJNJ535,79918.2%−2.5 pts

90Cattaraugus County, NYNY75,39018.1%−1.9 pts

91Grundy County, ILIL54,05218.1%−4.8 pts

92Carroll County, MDMD176,67718.1%−1.0 pts

93Hampshire County, MAMA164,06518.1%−4.1 pts

94Rutland County, VTVT59,65318.1%−4.5 pts

95LaSalle County, ILIL107,77318.0%−1.0 pts

96Ripley County, MOMO10,71717.9%+0.1 pts

97Breckinridge County, KYKY21,50317.9%−2.6 pts

98Bristol County, MAMA593,64017.9%−1.4 pts

99Judith Basin County, MTMT2,16217.9%+1.8 pts

100Clear Creek County, COCO8,99417.9%+2.3 pts

101Upshur County, WVWV23,75817.8%+7.3 pts

102Schuylkill County, PAPA145,08517.8%−1.7 pts

103Essex County, VTVT6,05117.8%+2.0 pts

104Lake County, OHOH232,21717.7%−1.1 pts

105Comanche County, KSKS1,67317.7%−3.5 pts

106Herkimer County, NYNY59,21917.7%−4.1 pts

107Cecil County, MDMD107,13117.7%−3.7 pts

108Garvin County, OKOK26,37717.6%+11.5 pts

109Kiowa County, COCO1,41217.6%+8.7 pts

110Morris County, NJNJ524,25117.6%−2.8 pts

111Teton County, MTMT6,49617.6%+3.2 pts

112Suffolk County, NYNY1,546,09017.6%−5.3 pts

113Broadwater County, MTMT8,49317.6%+2.1 pts

114Schenectady County, NYNY162,58117.6%+0.1 pts

115Trinity County, TXTX14,38417.6%+5.4 pts

116Berkshire County, MAMA128,22417.5%−5.9 pts

117Doddridge County, WVWV7,63417.5%+0.7 pts

118Livingston County, ILIL35,05717.5%+0.3 pts

119Lincoln County, MEME36,59517.5%−0.2 pts

120Luzerne County, PAPA332,12617.5%−2.5 pts

121Jefferson County, MTMT13,32917.5%−1.6 pts

122Keya Paha County, NENE79217.5%+5.1 pts

123Park County, MTMT18,21417.5%+1.3 pts

124Allamakee County, IAIA14,23817.4%−1.3 pts

125Harrison County, WVWV64,22117.4%−0.9 pts

126Lamoille County, VTVT26,29417.4%+0.9 pts

127Lawrence County, PAPA83,91117.4%+0.0 pts

128Chemung County, NYNY80,41517.4%−2.8 pts

129Iowa County, WIWI23,95117.3%−1.5 pts

130Randolph County, ARAR18,87617.3%+4.5 pts

131Allegany County, NYNY46,80017.3%−1.8 pts

132Pocahontas County, IAIA6,81917.3%+4.7 pts

133Towns County, GAGA13,28517.3%+0.9 pts

134Armstrong County, PAPA63,69817.2%−2.2 pts

135Westmoreland County, PAPA349,32417.2%−0.8 pts

136Jo Daviess County, ILIL21,59417.2%−2.4 pts

137Clinton County, IAIA46,00217.2%−0.8 pts

138Worcester County, MDMD54,45917.2%−1.0 pts

139Kenton County, KYKY175,77917.2%−2.7 pts

140Ontario County, NYNY113,13017.1%−3.7 pts

141Allegheny County, PAPA1,225,03517.1%−3.2 pts

142Jones County, IAIA21,25317.1%−1.2 pts

143Cambria County, PAPA128,96817.1%−1.4 pts

144Holt County, NENE10,06717.1%−5.0 pts

145Washington County, VTVT59,65217.1%+2.6 pts

146Menard County, TXTX1,95617.0%+12.0 pts

147Barbour County, WVWV15,41417.0%+3.4 pts

148Mariposa County, CACA16,91817.0%−4.9 pts

149Madison County, NYNY67,12017.0%−2.0 pts

150Falls Church, VAVA15,15916.9%+2.7 pts

151DeKalb County, MOMO9,79516.9%−0.2 pts

152Fall River County, SDSD7,46716.9%+4.3 pts

153Pittsburg County, OKOK43,32016.9%+0.5 pts

154Schuyler County, NYNY16,92416.9%−1.1 pts

155Lewis and Clark County, MTMT75,33116.9%−2.4 pts

156Hamilton County, NYNY5,00616.8%−5.9 pts

157Wyoming County, PAPA25,79016.8%−3.0 pts

158Blair County, PAPA119,54116.8%−3.4 pts

159Seneca County, NYNY32,88316.8%−1.7 pts

160Reynolds County, MOMO5,99216.7%−1.6 pts

161Hooker County, NENE68616.7%−1.1 pts

162Portage County, OHOH163,40416.7%−0.4 pts

163Poweshiek County, IAIA18,36816.7%+1.0 pts

164Mineral County, MTMT5,18516.7%−0.2 pts

165Tioga County, NYNY47,45316.7%−1.1 pts

166Jefferson County, OHOH63,59716.7%−0.4 pts

167Dade County, GAGA16,15416.7%−1.5 pts

168McHenry County, ILIL317,75116.7%−2.1 pts

169Windham County, VTVT45,20416.7%−5.1 pts

170Mineral County, COCO91016.6%+4.1 pts

171Medina County, OHOH185,02516.6%−1.7 pts

172Washington County, PAPA210,80216.6%−2.4 pts

173Burt County, NENE6,67816.6%+0.1 pts

174Steuben County, NYNY91,85516.5%−3.6 pts

175Piscataquis County, MEME17,40916.5%−0.1 pts

176Garfield County, NENE1,71016.5%+0.4 pts

177Sterling County, TXTX1,34916.4%+5.6 pts

178Sussex County, DEDE277,14016.4%−1.5 pts

179Talbot County, MDMD38,23816.4%−1.9 pts

180Fayette County, PAPA123,02116.4%−0.8 pts

181Gilchrist County, FLFL20,48816.4%+3.7 pts

182Beaver County, PAPA166,03216.3%−2.7 pts

183St. Charles County, MOMO426,49916.3%−2.8 pts

184Ohio County, WVWV40,49616.3%−2.8 pts

185Gilpin County, COCO6,07316.3%+0.9 pts

186McKean County, PAPA38,98416.3%−1.0 pts

187Erie County, NYNY946,74116.3%−1.5 pts

188Nance County, NENE3,29016.3%+1.0 pts

189Oxford County, MEME60,34616.2%+1.4 pts

190Campbell County, KYKY95,44116.2%−2.1 pts

191Blanco County, TXTX13,58116.2%+0.6 pts

192Martin County, FLFL166,27216.2%−0.2 pts

193McPherson County, NENE36916.2%−19.4 pts

194Meade County, KYKY30,69916.2%−2.9 pts

195Penobscot County, MEME157,96716.2%−1.0 pts

196Mercer County, PAPA107,86016.1%−0.7 pts

197Niobrara County, WYWY2,34116.1%−1.6 pts

198Fannin County, GAGA26,11116.1%−2.5 pts

199Rio Blanco County, COCO6,68316.1%−0.3 pts

200Venango County, PAPA49,34616.1%−1.8 pts

201Calaveras County, CACA46,60516.0%−1.0 pts

202Sullivan County, NYNY80,58616.0%−3.6 pts

203Marshall County, ILIL11,47316.0%−0.7 pts

204Kennebec County, MEME129,06716.0%−1.0 pts

205Gilmer County, GAGA33,89416.0%−2.8 pts

206Perry County, OHOH35,91816.0%+1.1 pts

207Beaverhead County, MTMT10,04316.0%+0.6 pts

208Orleans County, NYNY39,82516.0%−1.6 pts

209Wheeler County, OROR1,47215.9%−4.0 pts

210Arthur County, NENE39615.9%−2.1 pts

211Addison County, VTVT38,04815.9%−1.2 pts

212Boone County, KYKY145,31615.9%−2.7 pts

213Throckmorton County, TXTX1,55415.9%−1.6 pts

214Clay County, KSKS7,99015.9%+4.6 pts

215Wyoming County, NYNY39,74115.9%−0.0 pts

216Real County, TXTX2,74515.9%−1.3 pts

217Washington County, MOMO23,81015.9%+0.6 pts

218Boone County, ARAR38,62815.9%−1.8 pts

219Chenango County, NYNY45,71515.9%−0.8 pts

220Wayne County, NENE10,02015.9%+1.4 pts

221Butte County, SDSD10,85615.9%−0.7 pts

222Dixon County, NENE5,60215.9%−0.6 pts

223Crawford County, PAPA81,79215.9%−2.1 pts

224Motley County, TXTX1,04315.9%+0.5 pts

225Jefferson County, NYNY111,54015.9%−4.3 pts

226Adams County, IAIA3,61715.8%−0.1 pts

227Van Buren County, ARAR16,23815.8%−4.7 pts

228Delaware County, IAIA17,67415.8%−1.6 pts

229Blount County, ALAL60,15615.8%+2.6 pts

230Coos County, NHNH31,34315.8%−1.1 pts

231Little River County, ARAR11,76315.7%−4.2 pts

232Converse County, WYWY13,82415.7%−4.1 pts

233Randolph County, WVWV26,88215.7%−0.2 pts

234Greene County, NYNY47,23815.7%−2.7 pts

235Harford County, MDMD266,44615.7%−4.1 pts

236Pickens County, GAGA37,16715.7%+3.4 pts

237Grafton County, NHNH93,22515.7%−3.0 pts

238Ferry County, WAWA7,51715.7%+3.4 pts

239Scott County, IAIA175,25915.7%−0.7 pts

240Marion County, WVWV55,58415.7%−2.2 pts

241Orange County, VAVA40,08315.6%+0.4 pts

242Nantucket County, MAMA14,75815.6%−3.2 pts

243McMullen County, TXTX54415.6%+0.0 pts

244Atlantic County, NJNJ278,65715.6%−2.4 pts

245Carter County, MOMO5,41815.6%+1.6 pts

246Erie County, PAPA265,83215.6%−2.4 pts

247Wayne County, NYNY91,25015.6%−0.7 pts

248Haskell County, OKOK11,78715.6%+7.4 pts

249Stark County, ILIL5,31915.6%+0.1 pts

250Queen Anne's County, MDMD54,44815.6%−6.8 pts

251St. Mary's County, MDMD116,69215.5%−1.9 pts

252Niagara County, NYNY208,91215.5%−2.8 pts

253Windsor County, VTVT57,31215.5%−1.8 pts

254Lafayette County, WIWI17,47815.5%−5.8 pts

255Carbon County, PAPA65,86815.5%−1.0 pts

256Tuolumne County, CACA53,16015.5%−0.6 pts

257Chugach Census Area, AKAK6,55315.4%–

258Lee County, ILIL32,91415.4%−3.3 pts

259Clarion County, PAPA36,68015.4%−0.8 pts

260Brooke County, WVWV21,14215.4%−2.1 pts

261Harrison County, IAIA14,62315.4%−3.9 pts

262Monona County, IAIA8,53915.4%−2.0 pts

263Madison County, OHOH46,98515.3%−1.2 pts

264Grant County, KYKY26,18115.3%−2.7 pts

265Calhoun County, FLFL13,28915.3%−3.3 pts

266Clinton County, NYNY78,13815.3%−1.1 pts

267Faulk County, SDSD2,17815.3%+5.7 pts

268Columbiana County, OHOH99,37715.3%−2.5 pts

269Leon County, TXTX16,89415.3%−1.2 pts

270Missoula County, MTMT123,51315.3%−2.5 pts

271Maries County, MOMO8,39715.3%−0.9 pts

272Piatt County, ILIL16,79115.3%+1.9 pts

273Delaware County, OHOH242,03215.2%−1.0 pts

274Crawford County, MIMI13,72215.2%−3.0 pts

275Jackson County, IAIA19,28815.2%−1.0 pts

276Pershing County, NVNV6,42115.2%−1.6 pts

277Harris County, GAGA37,28015.2%+1.8 pts

278Genesee County, NYNY58,41615.2%−3.8 pts

279Champaign County, OHOH38,82015.2%+0.3 pts

280Nicholas County, WVWV23,84815.2%−6.5 pts

281Jefferson County, MOMO233,13215.2%−3.6 pts

282Decatur County, KSKS2,71615.1%−3.6 pts

283Porter County, ININ176,04915.1%−3.4 pts

284Orange County, VTVT30,00215.1%−1.4 pts

285Kent County, MDMD19,56515.1%−0.4 pts

286Adair County, IAIA7,40315.1%+2.5 pts

287Crawford County, ININ10,50915.1%−2.3 pts

288Richland County, WIWI17,03615.1%−2.2 pts

289Garrett County, MDMD28,37015.1%+3.8 pts

290Hamilton County, NENE9,67815.1%+2.6 pts

291Lake County, OROR8,18715.1%−4.2 pts

292Blackford County, ININ11,73015.1%−1.7 pts

293Braxton County, WVWV11,88515.1%+0.1 pts

294Cloud County, KSKS8,83315.1%+3.7 pts

295Lincoln County, KSKS2,86115.1%−0.9 pts

296Trimble County, KYKY8,70115.1%−0.1 pts

297Franklin County, KSKS26,29915.1%−0.6 pts

298Buchanan County, IAIA20,88315.0%−4.4 pts

299Greenwood County, KSKS5,82615.0%−1.6 pts

300Linn County, KSKS9,95015.0%−1.8 pts

301Miami County, KSKS36,24015.0%−3.4 pts

302Franklin County, MOMO108,09015.0%−0.8 pts

303Belmont County, OHOH64,43415.0%−2.9 pts

304Greene County, ARAR47,41115.0%+0.3 pts

305Clay County, SDSD15,03115.0%−0.8 pts

306Roger Mills County, OKOK3,25915.0%−6.8 pts

307Hickory County, MOMO9,04415.0%−0.6 pts

308Calvert County, MDMD94,48415.0%−2.6 pts

309Shiawassee County, MIMI67,68115.0%−0.4 pts

310Montgomery County, ININ38,95414.9%+0.5 pts

311Fulton County, ARAR12,49214.9%−11.7 pts

312Gunnison County, COCO17,43914.9%+0.3 pts

313Brown County, NENE2,82614.9%+2.0 pts

314Charlevoix County, MIMI26,03614.9%−1.8 pts

315Hancock County, MEME57,17114.9%−0.3 pts

316Kiowa County, OKOK8,18114.9%+1.7 pts

317Fulton County, OHOH41,85314.9%+3.0 pts

318Madison County, IAIA17,27014.9%−4.9 pts

319Bradford County, PAPA59,60014.9%−1.6 pts

320Llano County, TXTX23,35314.9%−1.5 pts

321Tripp County, SDSD5,70814.9%+4.1 pts

322Ravalli County, MTMT48,58214.9%−1.0 pts

323Saline County, ILIL22,77214.9%−2.9 pts

324Iroquois County, ILIL26,15014.9%+0.8 pts

325Mason County, ILIL12,41114.9%+4.6 pts

326Indiana County, PAPA82,87814.9%−5.4 pts

327Knox County, ILIL47,76714.9%−0.0 pts

328Berkeley County, WVWV139,52214.8%+0.1 pts

329White County, GAGA29,80214.8%+0.3 pts

330Furnas County, NENE4,52414.8%−0.0 pts

331Washington County, MEME31,33414.8%−2.1 pts

332Marion County, ARAR17,59314.8%−6.2 pts

333Franklin County, KYKY52,64914.8%+0.0 pts

334Washington County, NENE21,30214.8%−0.6 pts

335Livingston County, MIMI197,31514.8%−2.8 pts

336Teton County, WYWY23,33314.8%+1.8 pts

337Licking County, OHOH185,56414.8%−1.2 pts

338Valley County, IDID12,83114.8%+2.0 pts

339Storey County, NVNV4,26014.8%−5.3 pts

340Polk County, TNTN18,59214.8%−6.0 pts

341DeKalb County, ILIL101,83514.8%−2.7 pts

342New Madrid County, MOMO15,08614.8%−2.5 pts

343Sharp County, ARAR18,12214.8%−2.7 pts

344Jefferson County, WVWV63,10214.8%+2.6 pts

345Logan County, ILIL27,18214.7%+1.6 pts

346Lewis County, NYNY26,47914.7%−2.1 pts

347Franklin County, MEME30,82414.7%+0.5 pts

348Sumter County, FLFL157,77214.7%−1.5 pts

349McLean County, ILIL171,41914.7%−0.7 pts

350Atchison County, KSKS16,17214.7%−4.7 pts

351Mahoning County, OHOH224,70614.7%−1.9 pts

352Tazewell County, VAVA38,63514.7%−1.5 pts

353Powder River County, MTMT1,78114.7%+0.7 pts

354Bosque County, TXTX18,91814.7%+2.2 pts

355Will County, ILIL712,25314.7%−3.9 pts

356Bullitt County, KYKY86,45414.6%−0.4 pts

357Crittenden County, KYKY8,80714.6%+1.6 pts

358Dawson County, MTMT8,69214.6%−0.9 pts

359Crawford County, MOMO22,92914.6%−0.6 pts

360Gilliam County, OROR1,97114.6%−0.9 pts

361Carbon County, WYWY14,01314.6%+0.2 pts

362Archuleta County, COCO14,30614.6%+0.3 pts

363Greene County, PAPA33,88514.6%−4.5 pts

364Sagadahoc County, MEME37,97914.6%−2.2 pts

365Marshall County, OKOK16,25514.6%+3.3 pts

366Johnson County, KSKS636,90614.6%−2.2 pts

367Meigs County, TNTN14,18614.6%−5.5 pts

368Boone County, NENE5,35514.6%−2.9 pts

369Jasper County, IAIA38,15314.5%+0.3 pts

370Jackson County, MIMI159,55214.5%−0.7 pts

371Keokuk County, IAIA9,79714.5%−2.7 pts

372White County, ILIL13,25014.5%−1.3 pts

373Androscoggin County, MEME116,48714.5%−1.0 pts

374Pottawatomie County, KSKS27,18614.5%−3.5 pts

375Otsego County, MIMI26,08014.5%−1.8 pts

376Marshall County, WVWV29,15914.5%−3.1 pts

377Shoshone County, IDID14,13014.5%−3.1 pts

378Warren County, MOMO39,01614.5%−3.9 pts

379Norton County, KSKS5,28814.5%−1.3 pts

380Grand Isle County, VTVT7,51114.5%+0.2 pts

381Mayes County, OKOK40,41614.5%−7.1 pts

382Hinsdale County, COCO75314.5%+1.4 pts

383Teller County, COCO24,75614.5%−3.5 pts

384Pocahontas County, WVWV7,60214.4%−5.7 pts

385St. Lawrence County, NYNY105,48814.4%−3.3 pts

386Custer County, MTMT12,03414.4%−3.9 pts

387Knox County, OHOH64,00214.4%+0.0 pts

388Bourbon County, KSKS14,31914.4%+4.1 pts

389Hampden County, MAMA464,33814.4%−3.0 pts

390Deschutes County, OROR213,07214.4%−0.9 pts

391Citrus County, FLFL171,66614.4%−1.9 pts

392Cortland County, NYNY45,85014.4%−3.4 pts

393Linn County, IAIA232,02814.4%−3.9 pts

394Edgar County, ILIL16,32314.4%−0.9 pts

395Greene County, IAIA8,65814.4%−2.1 pts

396Oneida County, NYNY226,39214.4%−5.2 pts

397Meigs County, OHOH21,58714.3%+0.0 pts

398Fayette County, IAIA19,04714.3%−0.2 pts

399Lee County, IAIA32,30614.3%−1.8 pts

400Iowa County, IAIA16,50414.3%−3.6 pts

401Rappahannock County, VAVA7,43914.3%−2.8 pts

402Union County, GAGA27,85914.3%−1.4 pts

403Platte County, MOMO114,40014.3%−2.0 pts

404Daniels County, MTMT1,61214.3%+6.0 pts

405Menard County, ILIL11,86314.3%−1.3 pts

406Kendall County, ILIL145,47014.3%−1.7 pts

407Greenbrier County, WVWV31,57814.3%−3.5 pts

408Cleburne County, ARAR25,67214.3%−2.4 pts

409Athens County, OHOH63,19714.3%+0.3 pts

410Osage County, KSKS15,69314.3%−1.6 pts

411Grand Traverse County, MIMI96,72914.3%−0.5 pts

412Lincoln County, NVNV4,32014.3%+1.9 pts

413Monongalia County, WVWV107,99114.3%−2.8 pts

414Cherry County, NENE5,56114.3%−0.9 pts

415Crawford County, KSKS39,00814.3%+4.3 pts

416Curry County, OROR22,62114.3%+0.1 pts

417Onslow County, NCNC217,17514.2%−2.2 pts

418Calhoun County, WVWV5,97814.2%−7.1 pts

419Cheboygan County, MIMI25,79314.2%+1.4 pts

420Wheatland County, MTMT2,10014.2%+2.7 pts

421Mills County, IAIA14,79314.2%−1.3 pts

422Lorain County, OHOH323,21914.2%−2.5 pts

423Anne Arundel County, MDMD603,38014.2%−4.4 pts

424Johnson County, MOMO56,67014.2%−2.2 pts

425Aroostook County, MEME66,60914.2%−3.2 pts

426Logan County, NENE66914.2%+1.9 pts

427Searcy County, ARAR7,84814.2%−5.1 pts

428Yavapai County, AZAZ252,55214.2%−1.8 pts

429Summers County, WVWV11,53214.1%−6.0 pts

430Antrim County, MIMI24,69814.1%−0.6 pts

431Warren County, OHOH257,18114.1%+0.1 pts

432Coshocton County, OHOH37,18814.1%−0.1 pts

433Benton County, IAIA26,00414.1%−2.6 pts

434Wabasha County, MNMN21,53714.1%−2.2 pts

435Monroe County, NYNY750,50614.1%−2.5 pts

436Warren County, PAPA37,03814.1%−0.2 pts

437Cass County, IAIA12,96014.1%+0.3 pts

438Moffat County, COCO13,12214.1%−0.9 pts

439Morgan County, WVWV18,02714.1%+0.9 pts

440Pulaski County, ININ12,46314.1%+1.9 pts

441Stark County, OHOH373,77114.1%−1.4 pts

442Clinton County, MOMO21,66114.1%−4.3 pts

443Cedar County, IAIA18,35914.1%+0.0 pts

444Garden County, NENE1,80414.0%−4.5 pts

445DuPage County, ILIL934,29814.0%−2.5 pts

446Floyd County, IAIA14,90114.0%+3.5 pts

447Gasconade County, MOMO14,78414.0%−1.0 pts

448Orange County, NYNY417,66914.0%−6.2 pts

449Tillamook County, OROR27,38414.0%+2.0 pts

450Juneau County, WIWI26,64914.0%−1.3 pts

451Somerset County, MEME51,62014.0%−1.8 pts

452Caldwell Parish, LALA9,34414.0%+1.9 pts

453Lexington, VAVA7,76914.0%−1.6 pts

454Rock County, WIWI166,47214.0%−1.5 pts

455Clermont County, OHOH216,97714.0%−4.1 pts

456Jefferson County, KSKS18,29614.0%−4.6 pts

457Houston County, TNTN8,47914.0%−17.0 pts

458Harper County, OKOK3,17214.0%−0.2 pts

459Wirt County, WVWV4,87914.0%+1.6 pts

460Warren County, VAVA42,74014.0%+0.2 pts

461Cullman County, ALAL94,00914.0%−4.9 pts

462Kidder County, NDND2,39313.9%+9.2 pts

463Montmorency County, MIMI9,84213.9%−1.1 pts

464Kimball County, NENE3,39113.9%−1.1 pts

465Fulton County, NYNY52,21613.9%−4.3 pts

466Knox County, MEME41,11713.9%−5.1 pts

467Perry County, MSMS11,57713.9%+1.9 pts

468Montgomery County, KSKS30,17713.9%−1.5 pts

469Ogle County, ILIL51,39913.9%−1.4 pts

470Taylor County, WVWV16,28713.9%−9.0 pts

471Caledonia County, VTVT30,41413.9%−2.8 pts

472Montgomery County, NYNY50,04613.9%−2.2 pts

473Adams County, IDID5,01313.9%−0.8 pts

474Ringgold County, IAIA4,64213.9%−3.5 pts

475Hardin County, ILIL3,58813.9%−12.6 pts

476Florence County, WIWI4,74813.8%+2.0 pts

477Gallatin County, MTMT128,74013.8%−4.2 pts

478Dearborn County, ININ51,60913.8%−5.3 pts

479San Saba County, TXTX5,78713.8%−2.6 pts

480Monroe County, PAPA167,17913.8%−3.2 pts

481Donley County, TXTX3,21313.8%+0.7 pts

482Johnston County, OKOK10,44813.8%−0.8 pts

483Alcona County, MIMI10,55613.8%+0.6 pts

484Mineral County, WVWV26,79213.8%−2.2 pts

485Bonner County, IDID54,42013.8%−1.4 pts

486Dunklin County, MOMO26,85513.8%+0.3 pts

487Pottawattamie County, IAIA92,99613.8%−4.4 pts

488Beaver County, OKOK4,88213.8%+0.8 pts

489Wood County, OHOH134,17613.8%−0.6 pts

490Oldham County, KYKY70,98613.8%−1.6 pts

491Lycoming County, PAPA112,58713.8%−1.0 pts

492Wayne County, TNTN16,41613.8%−0.5 pts

493La Crosse County, WIWI121,33913.8%−0.2 pts

494Christian County, MOMO96,72513.8%+1.3 pts

495Randolph County, MOMO24,51313.8%−1.2 pts

496Bledsoe County, TNTN15,92013.7%−0.5 pts

497Washington County, IAIA22,66713.7%−1.5 pts

498Haines, AKAK2,06813.7%−6.5 pts

499Clay County, NENE6,17013.7%+2.7 pts

500Jefferson County, WAWA33,97013.7%−0.2 pts

SHOWING 1–500 OF 3,134

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Download CSV (full list, 3,134 rows)

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

Frequently asked

Which county has the highest irish share?

Cape May County, New Jersey ranks #1 with 30.1% (2020 Decennial Census).

What are the top 5 counties by irish share?

Cape May County, New Jersey, Plymouth County, Massachusetts, Barnstable County, Massachusetts, Gloucester County, New Jersey, Silver Bow County, Montana.

How many counties are in this ranking?

3,134 counties 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.