RANKING · 2024 ACS · 500 SHOWN OF 3,144

Highest Irish population share, US counties

US counties ranked by the share of all residents who are Irish ancestry (2023 American Community Survey). A concentration measure: Irish residents as a percentage of total population. Grant County, Nebraska leads at 27.8%. 3,144 counties qualify in total. New York carries 4 of the top 25 entries.

All statesAll rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPIRISH SHAREVS 2000

01Grant County, NENE56127.8%–

02Plymouth County, MAMA546,82927.6%–

03Cape May County, NJNJ93,39027.1%–

04Terrell County, TXTX70225.3%–

05Barnstable County, MAMA233,53925.2%–

06Silver Bow County, MTMT36,11824.8%–

07Rockingham County, NHNH324,07724.7%–

08Gloucester County, NJNJ312,63824.5%–

09Norfolk County, MAMA739,74924.0%–

10Rensselaer County, NYNY160,51023.7%–

11Washington County, RIRI129,79523.6%–

12Newport County, RIRI83,05123.5%–

13Belknap County, NHNH65,14722.7%–

14Saratoga County, NYNY241,34322.6%–

15Delaware County, PAPA580,93722.2%–

16Bucks County, PAPA647,82822.0%–

17Hooker County, NENE68621.9%–

18Lackawanna County, PAPA216,50221.9%–

19Cayuga County, NYNY74,36521.8%–

20Strafford County, NHNH135,04321.6%–

21Thomas County, NENE63921.5%–

22Palo Alto County, IAIA8,89921.3%–

23Roberts County, TXTX86721.3%–

24Sussex County, NJNJ148,06321.2%–

25Warren County, NYNY65,02021.1%–

26Monroe County, IAIA7,40621.1%–

27Chester County, PAPA557,11620.8%–

28Kent County, RIRI173,49520.6%–

29Carroll County, NHNH52,78420.5%–

30Stone County, ARAR12,70320.4%–

31Edwards County, TXTX1,37020.3%–

32McMullen County, TXTX54420.3%–

33Haakon County, SDSD1,80220.2%–

34Hamilton County, NYNY5,00620.2%–

35Merrimack County, NHNH158,07820.2%–

36Hillsborough County, NHNH433,41519.9%–

37Deer Lodge County, MTMT9,70919.8%–

38Pike County, PAPA62,80819.8%–

39Washington County, NYNY59,35319.8%–

40Greeley County, NENE2,15419.8%–

41Hunterdon County, NJNJ131,78119.7%–

42Greene County, NYNY47,23819.5%–

43Susquehanna County, PAPA38,23719.5%–

44Lower Connecticut River Valley Planning Region, CTCT177,31119.4%–

45Dubuque County, IAIA99,38119.4%–

46Monmouth County, NJNJ651,03519.2%–

47Dukes County, MAMA21,21919.2%–

48Nantucket County, MAMA14,75819.2%–

49Cumberland County, MEME317,22219.2%–

50Butler County, PAPA200,16919.1%–

51Jefferson County, MTMT13,32919.0%–

52Essex County, NYNY36,43819.0%–

53Hot Springs County, WYWY4,60019.0%–

54Berkshire County, MAMA128,22419.0%–

55Albany County, NYNY321,22518.9%–

56Montgomery County, PAPA877,64318.9%–

57Herkimer County, NYNY59,21918.9%–

58York County, MEME222,43418.9%–

59Jo Daviess County, ILIL21,59418.8%–

60Essex County, MAMA826,65318.7%–

61Northwest Hills Planning Region, CTCT114,69018.7%–

62Wayne County, PAPA51,70318.6%–

63Windham County, VTVT45,20418.6%–

64Bennington County, VTVT36,63018.6%–

65Park County, MTMT18,21418.5%–

66Gallatin County, ILIL4,61618.4%–

67Gilchrist County, FLFL20,48818.4%–

68Bristol County, RIRI50,00118.3%–

69Middlesex County, MAMA1,669,97918.3%–

70Chittenden County, VTVT169,11518.3%–

71Sterling County, TXTX1,34918.3%–

72Mineral County, COCO91018.2%–

73Marion County, ARAR17,59318.2%–

74Loup County, NENE57018.2%–

75Madison County, MTMT10,02618.1%–

76Delaware County, NYNY44,30518.1%–

77Oswego County, NYNY118,56918.1%–

78Ontario County, NYNY113,13017.9%–

79Hampshire County, MAMA164,06517.9%–

80Genesee County, NYNY58,41617.9%–

81Lawrence County, PAPA83,91117.8%–

82Rutland County, VTVT59,65317.8%–

83Onondaga County, NYNY466,58417.7%–

84Clear Creek County, COCO8,99417.7%–

85Ulster County, NYNY183,33017.7%–

86Putnam County, NYNY99,02817.6%–

87Mariposa County, CACA16,91817.6%–

88Carroll County, MDMD176,67717.6%–

89Burlington County, NJNJ481,43917.6%–

90Beaver County, PAPA166,03217.5%–

91Tioga County, NYNY47,45317.4%–

92Dutchess County, NYNY300,70817.4%–

93Washington County, VTVT59,65217.4%–

94Lake County, OHOH232,21717.3%–

95Doddridge County, WVWV7,63417.3%–

96Schoharie County, NYNY30,17617.2%–

97Calaveras County, CACA46,60517.2%–

98Harrison County, WVWV64,22117.2%–

99Ocean County, NJNJ673,74617.2%–

100Saline County, ILIL22,77217.2%–

101Broome County, NYNY195,73617.2%–

102Livingston County, NYNY61,43817.1%–

103Rappahannock County, VAVA7,43917.1%–

104Grafton County, NHNH93,22517.1%–

105Camas County, IDID1,31617.1%–

106Worcester County, MAMA888,50217.1%–

107Box Butte County, NENE10,49417.1%–

108Marion County, WVWV55,58417.1%–

109Valley County, IDID12,83117.1%–

110Kent County, MDMD19,56517.1%–

111Newton County, ININ14,18817.0%–

112Blair County, PAPA119,54117.0%–

113Skagway, AKAK1,10417.0%–

114Franklin County, FLFL13,02917.0%–

115Hancock County, WVWV27,72916.9%–

116Hancock County, MEME57,17116.9%–

117Franklin County, MAMA70,69816.9%–

118Allegheny County, PAPA1,225,03516.9%–

119Warren County, NJNJ112,95316.9%–

120Salem County, NJNJ66,28016.9%–

121Shackelford County, TXTX3,19716.9%–

122Custer County, SDSD9,43116.8%–

123Columbiana County, OHOH99,37716.8%–

124Columbia County, NYNY60,16816.8%–

125Garfield County, NENE1,71016.8%–

126Morris County, NJNJ524,25116.8%–

127Bristol County, MAMA593,64016.8%–

128Sussex County, DEDE277,14016.8%–

129Venango County, PAPA49,34616.8%–

130Madison County, NYNY67,12016.8%–

131Marshall County, WVWV29,15916.7%–

132Eureka County, NVNV1,86716.7%–

133Meagher County, MTMT2,13716.7%–

134Iowa County, IAIA16,50416.5%–

135Kenton County, KYKY175,77916.5%–

136Schuylkill County, PAPA145,08516.5%–

137Gilpin County, COCO6,07316.5%–

138Windsor County, VTVT57,31216.5%–

139Wheatland County, MTMT2,10016.5%–

140Madison County, IAIA17,27016.4%–

141Cecil County, MDMD107,13116.4%–

142Jones County, IAIA21,25316.4%–

143Talbot County, MDMD38,23816.4%–

144Westmoreland County, PAPA349,32416.4%–

145New Madrid County, MOMO15,08616.4%–

146Broadwater County, MTMT8,49316.4%–

147Armstrong County, PAPA63,69816.4%–

148Clinton County, IAIA46,00216.4%–

149Cortland County, NYNY45,85016.4%–

150Montgomery County, MOMO11,59016.4%–

151Grand Isle County, VTVT7,51116.3%–

152Monona County, IAIA8,53916.3%–

153Lexington, VAVA7,76916.2%–

154Waldo County, MEME40,69316.2%–

155Lee County, IAIA32,30616.2%–

156Chemung County, NYNY80,41516.2%–

157Cattaraugus County, NYNY75,39016.2%–

158Tuolumne County, CACA53,16016.2%–

159Barbour County, WVWV15,41416.2%–

160Washington County, PAPA210,80216.2%–

161Suffolk County, NYNY1,546,09016.2%–

162Gilliam County, OROR1,97116.1%–

163LaSalle County, ILIL107,77316.1%–

164St. Charles County, MOMO426,49916.1%–

165Ohio County, WVWV40,49616.1%–

166Steuben County, NYNY91,85516.0%–

167Guernsey County, OHOH38,37916.0%–

168Luzerne County, PAPA332,12616.0%–

169Cambria County, PAPA128,96816.0%–

170Lamoille County, VTVT26,29416.0%–

171Wyoming County, NYNY39,74116.0%–

172Benton County, ININ8,88315.9%–

173Jefferson County, WAWA33,97015.9%–

174Blackford County, ININ11,73015.9%–

175Schuyler County, NYNY16,92415.9%–

176Seneca County, NYNY32,88315.9%–

177Lewis and Clark County, MTMT75,33115.9%–

178Jefferson County, NYNY111,54015.9%–

179Wheeler County, OROR1,47215.9%–

180Fayette County, PAPA123,02115.9%–

181Warren County, IAIA57,33115.8%–

182Medina County, OHOH185,02515.8%–

183San Miguel County, COCO7,75315.8%–

184McHenry County, ILIL317,75115.8%–

185Benton County, IAIA26,00415.8%–

186Falls Church, VAVA15,15915.8%–

187Camden County, NJNJ535,79915.7%–

188Newton County, ARAR7,02615.7%–

189Essex County, VTVT6,05115.7%–

190Atchison County, MOMO5,17515.7%–

191Brooke County, WVWV21,14215.7%–

192Dundy County, NENE1,56815.7%–

193Cotton County, OKOK5,43215.7%–

194Schenectady County, NYNY162,58115.7%–

195Transylvania County, NCNC34,21115.7%–

196Lake County, OROR8,18715.7%–

197Erie County, NYNY946,74115.7%–

198Addison County, VTVT38,04815.7%–

199Chenango County, NYNY45,71515.7%–

200Atlantic County, NJNJ278,65715.6%–

201Crawford County, MIMI13,72215.6%–

202King County, TXTX19215.6%–

203Mason County, TXTX3,99015.6%–

204Lewis County, IDID3,70415.6%–

205Randolph County, WVWV26,88215.6%–

206Throckmorton County, TXTX1,55415.6%–

207Wabaunsee County, KSKS7,01815.6%–

208Kennebec County, MEME129,06715.5%–

209Rock County, NENE1,25915.5%–

210Otsego County, MIMI26,08015.5%–

211Cheshire County, NHNH78,26915.5%–

212Campbell County, KYKY95,44115.5%–

213Prairie County, ARAR7,92315.5%–

214Garden County, NENE1,80415.4%–

215Athens County, OHOH63,19715.4%–

216Penobscot County, MEME157,96715.4%–

217Marshall County, ILIL11,47315.4%–

218Scott County, IAIA175,25915.4%–

219Somerset County, MEME51,62015.4%–

220Judith Basin County, MTMT2,16215.4%–

221Jefferson County, OHOH63,59715.4%–

222Meigs County, TNTN14,18615.3%–

223Clinton County, NYNY78,13815.3%–

224Lee County, ILIL32,91415.3%–

225Buchanan County, IAIA20,88315.3%–

226Dallas County, IAIA118,45715.3%–

227Braxton County, WVWV11,88515.3%–

228Jackson County, IAIA19,28815.3%–

229Missoula County, MTMT123,51315.3%–

230Otsego County, NYNY60,58915.3%–

231Albany County, WYWY38,55815.3%–

232Van Buren County, ARAR16,23815.2%–

233DeKalb County, ILIL101,83515.2%–

234Hickory County, MOMO9,04415.2%–

235Lafayette County, WIWI17,47815.2%–

236Oxford County, MEME60,34615.2%–

237Geauga County, OHOH95,67615.2%–

238Franklin County, NYNY46,50015.2%–

239Allamakee County, IAIA14,23815.1%–

240Allegany County, NYNY46,80015.1%–

241Chugach Census Area, AKAK6,55315.1%–

242Polk County, TNTN18,59215.1%–

243Charlevoix County, MIMI26,03615.1%–

244Wyoming County, PAPA25,79015.0%–

245Powell County, MTMT7,15715.0%–

246Crawford County, PAPA81,79215.0%–

247La Plata County, COCO56,89815.0%–

248Atchison County, KSKS16,17215.0%–

249Phillips County, MTMT4,20315.0%–

250Upshur County, WVWV23,75815.0%–

251Iowa County, WIWI23,95115.0%–

252Brunswick County, NCNC174,70215.0%–

253Carbon County, PAPA65,86815.0%–

254Shelby County, KYKY51,24315.0%–

255Orange County, VAVA40,08315.0%–

256Fall River County, SDSD7,46715.0%–

257Union County, IAIA11,82915.0%–

258Sioux County, NENE1,18814.9%–

259Sagadahoc County, MEME37,97914.9%–

260Queen Anne's County, MDMD54,44814.9%–

261Lucas County, IAIA8,84714.9%–

262Glasscock County, TXTX1,12814.9%–

263Sumter County, FLFL157,77214.9%–

264Franklin County, VTVT51,17714.9%–

265Harford County, MDMD266,44614.9%–

266Porter County, ININ176,04914.9%–

267Lincoln County, MOMO66,67614.8%–

268Oneida County, NYNY226,39214.8%–

269Livingston County, MIMI197,31514.8%–

270Niagara County, NYNY208,91214.8%–

271Kiowa County, COCO1,41214.8%–

272St. Lawrence County, NYNY105,48814.8%–

273Madison County, OHOH46,98514.8%–

274Martin County, FLFL166,27214.8%–

275New Castle County, DEDE588,02614.8%–

276Fulton County, NYNY52,21614.7%–

277Dixon County, NENE5,60214.7%–

278Southeastern Connecticut Planning Region, CTCT284,01514.7%–

279Boyd County, NENE1,67414.7%–

280Lincoln County, NENE33,30314.7%–

281Yancey County, NCNC19,08414.7%–

282Pope County, ILIL3,67214.7%–

283Alcona County, MIMI10,55614.7%–

284Piscataquis County, MEME17,40914.7%–

285Prairie County, MTMT1,11214.6%–

286Clinton County, MOMO21,66114.6%–

287Williamsburg, VAVA15,86114.6%–

288Garfield County, MTMT1,14814.6%–

289Lincoln County, MEME36,59514.6%–

290Greer County, OKOK5,37314.6%–

291Pendleton County, KYKY14,80014.6%–

292Jefferson County, MOMO233,13214.6%–

293McMinn County, TNTN57,40414.6%–

294Delaware County, OHOH242,03214.6%–

295Androscoggin County, MEME116,48714.6%–

296Amador County, CACA41,87614.6%–

297Johnson County, IAIA160,04414.5%–

298Garvin County, OKOK26,37714.5%–

299Mercer County, PAPA107,86014.5%–

300Hinsdale County, COCO75314.5%–

301Sullivan County, PAPA5,85614.5%–

302Custer County, NENE10,50014.5%–

303Clarke County, VAVA15,60914.5%–

304Jefferson County, WVWV63,10214.5%–

305Camden County, GAGA60,14314.5%–

306Erie County, OHOH73,29614.5%–

307Beaverhead County, MTMT10,04314.4%–

308Yavapai County, AZAZ252,55214.4%–

309Crawford County, WIWI15,91014.4%–

310Calhoun County, ARAR4,63214.4%–

311Dade County, GAGA16,15414.4%–

312McLean County, ILIL171,41914.4%–

313Grundy County, ILIL54,05214.4%–

314Sitka, AKAK8,31914.4%–

315Pickaway County, OHOH62,97814.4%–

316Worcester County, MDMD54,45914.4%–

317Shiawassee County, MIMI67,68114.4%–

318Monroe County, PAPA167,17914.3%–

319Craig County, OKOK14,51814.3%–

320Delaware County, IAIA17,67414.3%–

321McKean County, PAPA38,98414.3%–

322Adams County, IAIA3,61714.3%–

323Guthrie County, IAIA10,78214.3%–

324Warrick County, ININ66,80314.3%–

325Cedar County, IAIA18,35914.3%–

326Roger Mills County, OKOK3,25914.3%–

327Huntingdon County, PAPA43,00114.3%–

328Franklin County, MEME30,82414.3%–

329Calhoun County, WVWV5,97814.3%–

330Douglas County, KSKS120,92014.3%–

331Coal County, OKOK5,43614.3%–

332Ashtabula County, OHOH96,71314.3%–

333Louisa County, VAVA42,92414.3%–

334Jackson County, MIMI159,55214.2%–

335Miami County, KSKS36,24014.2%–

336Livingston County, ILIL35,05714.2%–

337Scott County, ILIL4,86614.2%–

338Rush County, KSKS2,84514.2%–

339Grand Traverse County, MIMI96,72914.2%–

340Donley County, TXTX3,21314.2%–

341Coles County, ILIL46,60714.2%–

342Monroe County, NYNY750,50614.2%–

343Boone County, ARAR38,62814.2%–

344Union County, SDSD17,40214.2%–

345Laclede County, MOMO36,94314.2%–

346Custer County, COCO5,59014.2%–

347Calvert County, MDMD94,48414.2%–

348Levy County, FLFL48,52014.2%–

349South Central Connecticut Planning Region, CTCT578,74114.2%–

350Deschutes County, OROR213,07214.2%–

351Van Buren County, TNTN6,87414.2%–

352Moffat County, COCO13,12214.2%–

353Fayette County, IAIA19,04714.2%–

354Leon County, TXTX16,89414.2%–

355Wayne County, NYNY91,25014.2%–

356Greene County, PAPA33,88514.2%–

357Woodson County, KSKS3,11814.2%–

358Park County, COCO18,31414.1%–

359Howard County, NENE6,53814.1%–

360Grant County, KYKY26,18114.1%–

361Northeastern Connecticut Planning Region, CTCT98,09614.1%–

362Centre County, PAPA157,39314.1%–

363Teton County, WYWY23,33314.1%–

364Dawson County, MTMT8,69214.1%–

365Chautauqua County, KSKS3,32114.1%–

366Cloud County, KSKS8,83314.1%–

367Cameron County, PAPA4,21114.1%–

368Franklin County, MOMO108,09014.0%–

369Clinton County, OHOH42,30114.0%–

370Lake County, CACA67,77214.0%–

371Carbon County, MTMT11,46614.0%–

372Linn County, IAIA232,02814.0%–

373Champaign County, OHOH38,82014.0%–

374Stillwater County, MTMT9,44514.0%–

375Boone County, KYKY145,31614.0%–

376Indian River County, FLFL172,79914.0%–

377Sullivan County, NYNY80,58614.0%–

378Curry County, OROR22,62114.0%–

379Adams County, OHOH27,86514.0%–

380Johnson County, KSKS636,90614.0%–

381Spink County, SDSD6,15514.0%–

382Meade County, KYKY30,69913.9%–

383Coos County, NHNH31,34313.9%–

384Archuleta County, COCO14,30613.9%–

385Nelson County, VAVA14,92013.9%–

386Lewis County, NYNY26,47913.9%–

387Oconee County, SCSC83,77513.9%–

388Mahoning County, OHOH224,70613.9%–

389Franklin County, KSKS26,29913.9%–

390Adams County, IDID5,01313.9%–

391Baxter County, ARAR42,98213.9%–

392Lemhi County, IDID8,47413.9%–

393Towns County, GAGA13,28513.9%–

394Watauga County, NCNC54,78613.9%–

395Jackson County, KSKS13,43813.9%–

396Izard County, ARAR14,40513.8%–

397Humboldt County, IAIA9,40913.8%–

398Cheyenne County, COCO1,71313.8%–

399White County, GAGA29,80213.8%–

400Richland County, WIWI17,03613.8%–

401Piatt County, ILIL16,79113.8%–

402Greenwood County, KSKS5,82613.8%–

403Henderson County, ILIL5,98413.8%–

404Clermont County, OHOH216,97713.8%–

405Webster County, NENE3,33613.8%–

406Schuyler County, ILIL6,65713.8%–

407Pawnee County, NENE2,51013.8%–

408Knox County, ILIL47,76713.7%–

409Portage County, OHOH163,40413.7%–

410Holt County, NENE10,06713.7%–

411Lorain County, OHOH323,21913.7%–

412Fremont County, IAIA6,52213.7%–

413Crittenden County, KYKY8,80713.7%–

414Warren County, VAVA42,74013.7%–

415Goshen County, WYWY12,64013.7%–

416Cheboygan County, MIMI25,79313.7%–

417Pitkin County, COCO16,62513.7%–

418Whiteside County, ILIL54,12113.7%–

419Crawford County, KSKS39,00813.7%–

420White County, ILIL13,25013.7%–

421Hancock County, KYKY9,05013.7%–

422Pittsburg County, OKOK43,32013.7%–

423Ogle County, ILIL51,39913.7%–

424Gallatin County, MTMT128,74013.7%–

425White County, ININ25,16413.7%–

426Carbon County, WYWY14,01313.7%–

427Ray County, MOMO23,39813.7%–

428Carroll County, OHOH26,47513.6%–

429Pierce County, WIWI43,51913.6%–

430Hamilton County, ILIL7,85913.6%–

431Hampshire County, WVWV24,10513.6%–

432Washington County, OHOH58,38913.6%–

433Toole County, MTMT5,21113.6%–

434Citrus County, FLFL171,66613.6%–

435Edgar County, ILIL16,32313.6%–

436Williamson County, ILIL67,22513.6%–

437Iosco County, MIMI25,26613.6%–

438Caledonia County, VTVT30,41413.6%–

439St. Johns County, FLFL346,32813.6%–

440Oldham County, KYKY70,98613.6%–

441Belmont County, OHOH64,43413.6%–

442Jefferson County, KSKS18,29613.6%–

443Grundy County, TNTN14,11613.6%–

444Elk County, KSKS2,45813.6%–

445Berkeley County, WVWV139,52213.6%–

446Arlington County, VAVA243,93113.6%–

447Bureau County, ILIL32,51013.6%–

448Wabasha County, MNMN21,53713.6%–

449Pottawatomie County, KSKS27,18613.6%–

450Heard County, GAGA12,14913.5%–

451Santa Rosa County, FLFL211,11513.5%–

452Nevada County, CACA101,91113.5%–

453Macoupin County, ILIL43,74813.5%–

454York County, NENE14,56413.5%–

455Nowata County, OKOK9,52213.5%–

456Greene County, IAIA8,65813.5%–

457Lampasas County, TXTX23,65713.5%–

458Bradford County, PAPA59,60013.5%–

459La Crosse County, WIWI121,33913.5%–

460Elk County, PAPA29,92613.5%–

461Charlotte County, FLFL217,21213.5%–

462Coos County, OROR63,99213.5%–

463Pennington County, SDSD116,79213.5%–

464Morgan County, TNTN22,16013.5%–

465Fayette County, OHOH28,55213.5%–

466Taylor County, WVWV16,28713.5%–

467Gunnison County, COCO17,43913.5%–

468Floyd County, ININ82,15313.5%–

469Western Connecticut Planning Region, CTCT640,48213.4%–

470Grant County, WIWI52,44613.4%–

471Ellis County, OKOK3,61313.4%–

472Garrett County, MDMD28,37013.4%–

473Sharp County, ARAR18,12213.4%–

474Knox County, MEME41,11713.4%–

475Benzie County, MIMI18,56813.4%–

476Knott County, KYKY13,32113.4%–

477Harrison County, IAIA14,62313.4%–

478Frontier County, NENE2,65513.4%–

479Cullman County, ALAL94,00913.4%–

480Dearborn County, ININ51,60913.4%–

481Warren County, PAPA37,03813.4%–

482Natrona County, WYWY80,52613.4%–

483Jefferson County, COCO580,45113.4%–

484Walworth County, WIWI106,12713.4%–

485Summit County, OHOH538,37613.4%–

486Henry County, KYKY16,44713.3%–

487Madison County, ILIL263,11013.3%–

488Coshocton County, OHOH37,18813.3%–

489Iroquois County, ILIL26,15013.3%–

490San Juan County, WAWA18,57713.3%–

491Wood County, WVWV82,38513.3%–

492Shoshone County, IDID14,13013.3%–

493Crawford County, ARAR62,65713.3%–

494Bullitt County, KYKY86,45413.3%–

495Orleans County, NYNY39,82513.3%–

496Dade County, MOMO7,80413.3%–

497Fauquier County, VAVA76,50313.3%–

498Polk County, IAIA516,54613.3%–

499Clarion County, PAPA36,68013.3%–

500Martin County, ININ9,85613.3%–

SHOWING 1–500 OF 3,144

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Download CSV (full list, 3,144 rows)

UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES

Frequently asked

Which county has the highest irish share?

Grant County, Nebraska ranks #1 with 27.8% (2024 American Community Survey).

What are the top 5 counties by irish share?

Grant County, Nebraska, Plymouth County, Massachusetts, Cape May County, New Jersey, Terrell County, Texas, Barnstable County, Massachusetts.

How many counties are in this ranking?

3,144 counties qualify after filtering for population minimums and data availability. The ranking covers 2024 ACS 5-year data.

How is irish share measured?

Share of all residents who are Irish ancestry (Ancestry, ACS detailed tables). Source: US Census Bureau, American Community Survey 5-year estimates (2024).