RANKING · 2024 ACS · 500 SHOWN OF 2,971

Largest Welsh population, US counties

US counties ranked by the number of residents who are Welsh ancestry, from the 2024 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. Maricopa County, Arizona leads at 23,068. 2,971 counties qualify in total. California carries 5 of the top 25 entries.

Welsh Americans: full group profile →

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SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPWELSH POPULATIONVS 2010

USUnited States0.5% of US population334,922,4991,586,180–

01Maricopa County, AZAZ4,689,55823,068−8%

02Los Angeles County, CACA9,694,93419,366−32%

03King County, WAWA2,344,93917,065−18%

04Salt Lake County, UTUT1,220,91617,051−18%

05San Diego County, CACA3,282,24814,465−28%

06Franklin County, OHOH1,361,53613,535−27%

07Utah County, UTUT759,85912,736+3%

08Allegheny County, PAPA1,225,03511,998−24%

09Harris County, TXTX5,045,02611,943−7%

10Orange County, CACA3,149,50711,326−30%

11Cook County, ILIL5,194,62510,585−21%

12Luzerne County, PAPA332,1269,469−41%

13Tarrant County, TXTX2,248,4668,363−8%

14Montgomery County, PAPA877,6438,023−17%

15Clark County, NVNV2,407,2267,938−22%

16Lackawanna County, PAPA216,5027,526−44%

17Riverside County, CACA2,544,9167,383−26%

18Multnomah County, OROR795,3917,188−16%

19Wake County, NCNC1,257,2357,167+0%

20Pima County, AZAZ1,074,6857,122−8%

21Dallas County, TXTX2,661,3976,806−19%

22Sacramento County, CACA1,618,4606,654−29%

23Fairfax County, VAVA1,167,8736,628−19%

24Travis County, TXTX1,389,6706,496−3%

25Ada County, IDID546,1416,496+9%

26Cuyahoga County, OHOH1,232,9256,373−26%

27Hennepin County, MNMN1,284,7846,282−18%

28Middlesex County, MAMA1,669,9796,188−7%

29Snohomish County, WAWA870,6566,121−18%

30Chester County, PAPA557,1166,118−28%

31Bexar County, TXTX2,160,0885,995−3%

32Pierce County, WAWA946,2885,957−24%

33Davis County, UTUT381,2275,873−14%

34El Paso County, COCO757,0405,863−12%

35Hillsborough County, FLFL1,574,1155,653−28%

36Jefferson County, COCO580,4515,524−1%

37New York County, NYNY1,664,8625,395−10%

38Bucks County, PAPA647,8285,359−36%

39Oakland County, MIMI1,288,3375,291−41%

40Contra Costa County, CACA1,170,0705,206−25%

41Lancaster County, PAPA563,1595,116−14%

42Pinellas County, FLFL948,5635,100−34%

43Hamilton County, OHOH838,4185,093−14%

44San Bernardino County, CACA2,224,0915,084−38%

45Summit County, OHOH538,3765,043−28%

46Brevard County, FLFL663,9825,035+28%

47Collin County, TXTX1,297,1795,003+3%

48Philadelphia County, PAPA1,574,2814,991+15%

49Mecklenburg County, NCNC1,233,3834,986−26%

50Johnson County, KSKS636,9064,960−21%

51Spokane County, WAWA558,3444,944−3%

52Wayne County, MIMI1,769,0384,870−23%

53Alameda County, CACA1,636,6304,857−23%

54Orange County, FLFL1,528,0024,789−19%

55Baltimore County, MDMD847,6504,669−24%

56Duval County, FLFL1,062,9634,633+5%

57Stark County, OHOH373,7714,482−32%

58Denver County, COCO740,6134,436−2%

59Clark County, WAWA532,1194,351−11%

60Berks County, PAPA440,0724,312−29%

61Washington County, OROR611,7084,303−25%

62Oneida County, NYNY226,3924,294−41%

63Arapahoe County, COCO673,8204,289−7%

64St. Louis County, MOMO990,9114,265−29%

65Jefferson County, KYKY795,2224,260+7%

66Marion County, ININ992,1964,232−21%

67Jackson County, MOMO732,9944,213−19%

68Williamson County, TXTX752,8274,189+44%

69Santa Clara County, CACA1,914,3914,174−49%

70Denton County, TXTX1,069,3464,163−6%

71Fulton County, GAGA1,098,7914,163+8%

72Larimer County, COCO377,2924,154+27%

73York County, PAPA473,1974,141−20%

74Clackamas County, OROR426,2804,126−9%

75Montgomery County, MDMD1,074,5824,052−32%

76Palm Beach County, FLFL1,575,7264,040−29%

77Monroe County, NYNY750,5063,941−25%

78New Castle County, DEDE588,0263,931−31%

79Dane County, WIWI590,3753,906−10%

80Weber County, UTUT278,1743,867−5%

81Lee County, FLFL875,6073,799−20%

82Sonoma County, CACA486,4443,784−11%

83Lane County, OROR381,5843,766−14%

84Lehigh County, PAPA384,3833,766−45%

85Polk County, IAIA516,5463,729−4%

86Pasco County, FLFL674,5163,717−8%

87Cumberland County, PAPA277,2703,714−12%

88Bernalillo County, NMNM667,6013,668−17%

89Erie County, NYNY946,7413,634−30%

90Tulsa County, OKOK698,7823,618−13%

91Knox County, TNTN511,4533,613−4%

92Anne Arundel County, MDMD603,3803,595−39%

93Oklahoma County, OKOK822,1253,542−8%

94Kings County, NYNY2,653,9633,522+35%

95Ventura County, CACA830,8513,465−32%

96Sarasota County, FLFL479,9583,462+1%

97Westmoreland County, PAPA349,3243,460−29%

98San Francisco County, CACA826,0793,459−9%

99Macomb County, MIMI886,2213,418−8%

100Montgomery County, TXTX781,1943,370+38%

101Davidson County, TNTN745,9043,354−15%

102Delaware County, PAPA580,9373,352−47%

103Boulder County, COCO328,5603,332+2%

104Montgomery County, OHOH539,5983,261−32%

105Douglas County, COCO399,3963,252−5%

106Broward County, FLFL2,013,3173,230−34%

107Cobb County, GAGA793,3453,218−27%

108Prince William County, VAVA502,9663,187+24%

109Delaware County, OHOH242,0323,171−18%

110Northampton County, PAPA324,4113,159−48%

111Gwinnett County, GAGA1,018,0993,144−10%

112DuPage County, ILIL934,2983,130−29%

113Greenville County, SCSC583,1253,086+24%

114Placer County, CACA442,0813,082+14%

115Cumberland County, MEME317,2222,997+18%

116Manatee County, FLFL468,2002,992−0%

117Kent County, MIMI675,2322,979+9%

118Washoe County, NVNV509,3862,959−15%

119DeKalb County, GAGA774,3942,949+2%

120Sedgwick County, KSKS538,4332,947−16%

121Hamilton County, TNTN390,8332,877+23%

122Capitol Planning Region, CTCT994,1152,821–

123Greene County, MOMO309,2862,784+23%

124Mahoning County, OHOH224,7062,778−48%

125Kern County, CACA927,0682,716−20%

126Butler County, OHOH400,1282,692−8%

127Onondaga County, NYNY466,5842,685−41%

128Gloucester County, NJNJ312,6382,677+5%

129Washington County, UTUT213,6702,655−16%

130District of Columbia, DCDC693,6452,645−1%

131Yavapai County, AZAZ252,5522,640+21%

132Volusia County, FLFL606,5732,603−15%

133Cleveland County, OKOK303,9732,602+27%

134Licking County, OHOH185,5642,574−23%

135Virginia Beach, VAVA453,7372,543−35%

136Thurston County, WAWA304,2612,542−15%

137Whatcom County, WAWA236,3922,513+37%

138Burlington County, NJNJ481,4392,507−33%

139Adams County, COCO554,6682,488+3%

140Allen County, ININ402,3292,471+41%

141Fayette County, KYKY329,7512,456+5%

142Trumbull County, OHOH198,9722,438−52%

143Dauphin County, PAPA293,3512,421−41%

144Polk County, FLFL874,7902,420−19%

145Lorain County, OHOH323,2192,407−28%

146St. Johns County, FLFL346,3282,399+77%

147Leon County, FLFL299,0482,381−10%

148Suffolk County, NYNY1,546,0902,372−37%

149Cache County, UTUT145,0002,372−10%

150Washington County, PAPA210,8022,371−5%

151Pinal County, AZAZ539,3802,370+16%

152Guilford County, NCNC562,2342,368−2%

153Schuylkill County, PAPA145,0852,363−48%

154Benton County, WAWA221,7222,355−0%

155Charleston County, SCSC436,2002,354+9%

156Milwaukee County, WIWI924,2162,346−24%

157San Mateo County, CACA743,5682,314−28%

158Essex County, MAMA826,6532,312−21%

159Douglas County, NENE606,4602,311−26%

160Loudoun County, VAVA449,7492,305−15%

161Kitsap County, WAWA283,3742,290−12%

162Williamson County, TNTN272,0612,268+14%

163Hamilton County, ININ387,0362,263−17%

164Sussex County, DEDE277,1402,251−8%

165Jefferson County, ALAL665,7422,245−33%

166Broome County, NYNY195,7362,238−50%

167Fresno County, CACA1,035,4562,234−44%

168Washtenaw County, MIMI370,2142,234−30%

169Waukesha County, WIWI417,2102,223−20%

170San Luis Obispo County, CACA282,3672,193−19%

171Stanislaus County, CACA557,7192,166−24%

172Escambia County, FLFL333,8342,152+36%

173Camden County, NJNJ535,7992,148−28%

174Cherokee County, GAGA299,2732,146+8%

175Chesterfield County, VAVA397,1482,142−24%

176Harford County, MDMD266,4462,138−22%

177Horry County, SCSC427,5512,130+9%

178Medina County, OHOH185,0252,124+9%

179Western Connecticut Planning Region, CTCT640,4822,104–

180Mobile County, ALAL411,6582,101+46%

181Norfolk County, MAMA739,7492,094−16%

182Santa Barbara County, CACA442,0652,089−39%

183Weld County, COCO378,4262,085+16%

184Durham County, NCNC347,2402,059+19%

185Madison County, ALAL433,5162,049+17%

186Hillsborough County, NHNH433,4152,044+9%

187Dakota County, MNMN457,7102,028−22%

188Worcester County, MAMA888,5022,005−36%

189Bonneville County, IDID135,7712,004+10%

190Shelby County, TNTN910,2262,000−40%

191Santa Cruz County, CACA258,8521,992−19%

192Morris County, NJNJ524,2511,987−28%

193Mesa County, COCO162,8451,964+27%

194Kootenai County, IDID191,8641,963+45%

195Washington County, ARAR271,2131,956+90%

196Buncombe County, NCNC277,4171,956−27%

197Honolulu County, HIHI988,7031,947−34%

198Clermont County, OHOH216,9771,946+33%

199San Joaquin County, CACA823,8151,937−15%

200Pulaski County, ARAR404,6111,922+13%

201Seminole County, FLFL491,8841,922−45%

202Rutherford County, TNTN386,3521,913+29%

203Lake County, ILIL719,3391,902−38%

204Clay County, MOMO265,0321,895−21%

205Fort Bend County, TXTX975,1911,892+2%

206St. Charles County, MOMO426,4991,862−31%

207Centre County, PAPA157,3931,859−16%

208Suffolk County, MAMA791,8911,858−14%

209Forsyth County, NCNC401,7181,857−25%

210Beaver County, PAPA166,0321,857−13%

211Will County, ILIL712,2531,854−22%

212Genesee County, MIMI401,0931,850−2%

213Johnston County, NCNC256,4481,849+156%

214Ocean County, NJNJ673,7461,847−47%

215Arlington County, VAVA243,9311,845+4%

216Bell County, TXTX402,2481,829+60%

217Deschutes County, OROR213,0721,825−12%

218Lucas County, OHOH423,3471,811−23%

219Marion County, OROR355,7771,787−34%

220Marin County, CACA253,6941,781−23%

221New Hanover County, NCNC245,9591,780+10%

222Anchorage, AKAK287,1551,774−28%

223Ingham County, MIMI289,7091,774−10%

224Lake County, FLFL456,0681,771−28%

225Westchester County, NYNY1,015,7431,765−23%

226Jackson County, OROR221,7951,757−14%

227Butler County, PAPA200,1691,752−42%

228Orange County, NCNC152,4981,675+29%

229Solano County, CACA455,3761,671−10%

230Baltimore, MDMD569,9971,670−15%

231Marion County, FLFL442,6601,667−32%

232Lake County, OHOH232,2171,656−38%

233Rockingham County, NHNH324,0771,655−11%

234Canyon County, IDID275,1231,650−12%

235Bannock County, IDID91,5911,636−18%

236Kane County, ILIL525,7571,633−39%

237Howard County, MDMD339,1831,628−33%

238Galveston County, TXTX372,2071,626−2%

239Ramsey County, MNMN541,6231,606−29%

240Frederick County, MDMD302,8831,606−35%

241Okaloosa County, FLFL221,8101,605+1%

242Erie County, PAPA265,8321,600−35%

243Mohave County, AZAZ228,1021,595−11%

244Alachua County, FLFL290,0281,592−6%

245Collier County, FLFL417,1311,591−28%

246York County, SCSC306,8871,589+25%

247Lancaster County, NENE334,0491,583−26%

248Saratoga County, NYNY241,3431,562−20%

249Queens County, NYNY2,358,1821,541−8%

250Monmouth County, NJNJ651,0351,537−40%

251Clay County, FLFL239,5931,537+20%

252Lubbock County, TXTX328,9061,531+8%

253Warren County, OHOH257,1811,529−10%

254East Baton Rouge Parish, LALA456,1801,528+17%

255Hawaii County, HIHI210,0431,525+90%

256Santa Fe County, NMNM156,9071,520+28%

257Comal County, TXTX209,1661,511+107%

258Coconino County, AZAZ144,3681,508+27%

259Albany County, NYNY321,2251,507−34%

260Onslow County, NCNC217,1751,498+67%

261Baldwin County, ALAL267,7611,487+68%

262Providence County, RIRI678,1791,479+5%

263Fairfield County, OHOH169,7521,477−40%

264Forsyth County, GAGA282,8051,468+28%

265Plymouth County, MAMA546,8291,467−31%

266Henrico County, VAVA342,7751,449−39%

267Hays County, TXTX304,3901,424+46%

268Madison County, ILIL263,1101,422−25%

269Monterey County, CACA433,7291,420−33%

270Spartanburg County, SCSC380,8571,420+46%

271Monroe County, PAPA167,1791,405−41%

272Greene County, OHOH174,3221,404−29%

273Brazoria County, TXTX419,0801,402+13%

274Nassau County, NYNY1,398,9391,394−21%

275Montgomery County, TNTN249,9351,389+39%

276St. Joseph County, ININ272,8611,388+1%

277Clark County, OHOH135,3401,372−3%

278Tompkins County, NYNY104,0471,360+17%

279Cambria County, PAPA128,9681,345−50%

280Miami-Dade County, FLFL2,802,0291,344−25%

281Tulare County, CACA485,1461,339+12%

282Rensselaer County, NYNY160,5101,337−3%

283Mercer County, PAPA107,8601,333−32%

284Shawnee County, KSKS178,6071,326−19%

285Richmond, VAVA237,2571,324−5%

286Douglas County, KSKS120,9201,314+6%

287Shasta County, CACA181,6481,310−23%

288Orleans Parish, LALA362,1541,310+78%

289Osceola County, FLFL481,7181,306+9%

290Tuscarawas County, OHOH92,3731,295−7%

291Jackson County, OHOH32,8171,285−12%

292Madison County, IDID55,1721,283+13%

293Monroe County, ININ143,3451,282+0%

294Hernando County, FLFL221,7011,281−8%

295Bergen County, NJNJ977,0261,275−51%

296Linn County, IAIA232,0281,275−31%

297McLennan County, TXTX272,0201,264+11%

298Anoka County, MNMN381,6051,263+14%

299Madison County, NYNY67,1201,261−23%

300Clallam County, WAWA78,2021,261+15%

301St. Tammany Parish, LALA279,1081,254−10%

302Herkimer County, NYNY59,2191,252−38%

303Beaufort County, SCSC204,4331,250−12%

304Skagit County, WAWA132,9751,247−15%

305Butte County, CACA209,2111,246−32%

306South Central Connecticut Planning Region, CTCT578,7411,245–

307York County, MEME222,4341,240−17%

308Richland County, SCSC434,9561,237−23%

309Chittenden County, VTVT169,1151,232−31%

310Benton County, ARAR332,5541,227−32%

311Peoria County, ILIL178,5531,209−2%

312Brunswick County, NCNC174,7021,202+15%

313Sangamon County, ILIL194,1701,202−23%

314Sumter County, FLFL157,7721,198+36%

315Sumner County, TNTN215,5381,197+27%

316Northumberland County, PAPA89,9201,192−31%

317Carroll County, MDMD176,6771,188−42%

318Chesapeake, VAVA255,3321,182−21%

319Lebanon County, PAPA146,3801,179+10%

320El Dorado County, CACA192,3231,177−40%

321Chatham County, GAGA311,8551,174−16%

322Kenton County, KYKY175,7791,173−2%

323Sullivan County, TNTN163,7591,172+25%

324Paulding County, GAGA190,9961,164+118%

325Portage County, OHOH163,4041,162−63%

326Wyoming County, PAPA25,7901,159−34%

327Henderson County, NCNC122,3751,155+8%

328Catawba County, NCNC170,1721,152+85%

329Kalamazoo County, MIMI263,7951,148−31%

330Alexandria, VAVA160,6621,148−18%

331Lexington County, SCSC317,5881,146−11%

332Atlantic County, NJNJ278,6571,143−32%

333Merrimack County, NHNH158,0781,142−11%

334Naugatuck Valley Planning Region, CTCT463,3491,141–

335Johnson County, IAIA160,0441,139+9%

336Boone County, KYKY145,3161,137+19%

337El Paso County, TXTX877,8581,134+16%

338Shelby County, ALAL238,5521,133−23%

339Rutland County, VTVT59,6531,132−38%

340Columbia County, GAGA169,1891,131+58%

341Lycoming County, PAPA112,5871,130−30%

342Benton County, OROR97,7281,126+17%

343Anderson County, TNTN82,0661,124+93%

344Columbiana County, OHOH99,3771,120−43%

345Middlesex County, NJNJ883,3351,119−37%

346Charlotte County, FLFL217,2121,119−20%

347Bristol County, MAMA593,6401,116−17%

348Prince George's County, MDMD970,3741,114−41%

349Southeastern Connecticut Planning Region, CTCT284,0151,113–

350Berkeley County, SCSC274,6661,107−14%

351Hudson County, NJNJ735,0331,098+26%

352Lake County, ININ504,6121,098−42%

353Box Elder County, UTUT65,3201,098−3%

354Douglas County, OROR111,9511,086−16%

355Union County, OHOH73,4461,078−4%

356Champaign County, ILIL209,9721,078−8%

357Yellowstone County, MTMT172,6921,077−28%

358Orange County, TXTX86,2661,075+518%

359Spotsylvania County, VAVA155,3881,070+7%

360St. Clair County, ILIL250,7081,066−29%

361Tippecanoe County, ININ190,4561,065−22%

362Sarpy County, NENE208,3031,061−26%

363Humboldt County, CACA131,6471,053−2%

364Niagara County, NYNY208,9121,048−41%

365Clark County, ININ130,4511,041+137%

366Allegany County, MDMD66,8481,041−30%

367Gallatin County, MTMT128,7401,039−25%

368Missoula County, MTMT123,5131,038+18%

369Island County, WAWA85,6571,032−20%

370Anderson County, SCSC219,9301,031+16%

371Dutchess County, NYNY300,7081,030−28%

372Mercer County, NJNJ399,2891,029−44%

373Ottawa County, MIMI308,4591,026−13%

374Vanderburgh County, ININ181,9951,022+55%

375Susquehanna County, PAPA38,2371,022−56%

376Jasper County, MOMO127,4281,015+27%

377Norfolk, VAVA231,0131,014−27%

378Martin County, FLFL166,2721,012−9%

379Santa Rosa County, FLFL211,1151,009−19%

380Somerset County, NJNJ356,4861,008−37%

381Porter County, ININ176,0491,007−24%

382Winnebago County, ILIL283,6741,005−28%

383Flathead County, MTMT115,4291,004+2%

384Linn County, OROR132,8431,001−10%

385Bedford County, VAVA83,0591,000+131%

386Wood County, OHOH134,176999−26%

387Cumberland County, NCNC338,473997−27%

388Washington County, NYNY59,353994−14%

389Geauga County, OHOH95,676992−16%

390Washington County, TNTN141,199990+53%

391McLean County, ILIL171,419990−21%

392Kanawha County, WVWV172,381987−40%

393Albemarle County, VAVA118,356984−25%

394Penobscot County, MEME157,967984−13%

395Twin Falls County, IDID97,539980+92%

396Livingston County, MIMI197,315980−20%

397Kent County, DEDE194,786972−22%

398Barnstable County, MAMA233,539969−40%

399Boone County, MOMO191,746967−47%

400Columbia County, PAPA66,193967−48%

401Lawrence County, PAPA83,911964−53%

402McHenry County, ILIL317,751963−36%

403Sebastian County, ARAR130,641962+67%

404Cochise County, AZAZ126,332959−12%

405Orange County, NYNY417,669959−39%

406Washington County, MDMD157,731952−4%

407Brazos County, TXTX249,088950+7%

408Hanover County, VAVA116,423947−2%

409Washington County, MNMN286,895946−15%

410Pickens County, SCSC139,198944+17%

411Cecil County, MDMD107,131942−43%

412Carbon County, PAPA65,868937−35%

413Aiken County, SCSC181,515934+3%

414Greater Bridgeport Planning Region, CTCT337,697932–

415Indian River County, FLFL172,799931−24%

416Chautauqua County, NYNY124,126928−11%

417Citrus County, FLFL171,666924−18%

418Monongalia County, WVWV107,991923−37%

419St. Louis, MOMO278,144921−27%

420Walker County, GAGA70,250920+379%

421Berrien County, MIMI152,444919+4%

422Essex County, NJNJ896,379916−34%

423Union County, NCNC267,674913−25%

424Scott County, IAIA175,259913+7%

425Sandoval County, NMNM159,565912+8%

426Jefferson County, MOMO233,132911−25%

427Iredell County, NCNC211,798910−7%

428Winnebago County, WIWI174,218909−35%

429Bradford County, PAPA59,600908−41%

430Harrison County, MSMS217,136906−4%

431Allen County, OHOH100,881904−54%

432Wayne County, PAPA51,703901−34%

433Fairbanks North Star, AKAK93,972899−5%

434Racine County, WIWI198,919899+5%

435Oswego County, NYNY118,569895−27%

436Natrona County, WYWY80,526894−2%

437Cabell County, WVWV91,183887+5%

438Schenectady County, NYNY162,581885−11%

439Dallas County, IAIA118,457883+43%

440Chelan County, WAWA81,941882+33%

441Blair County, PAPA119,541880−42%

442Pennington County, SDSD116,792880+49%

443Walton County, GAGA112,696868+107%

444Yamhill County, OROR110,024867−28%

445Kaufman County, TXTX209,235865+134%

446Saginaw County, MIMI187,688864+24%

447Iron County, UTUT67,141864−29%

448Rock Island County, ILIL141,869857+36%

449Charles County, MDMD176,593856+8%

450Warren County, NYNY65,020855−13%

451Delaware County, ININ113,106854+15%

452Caddo Parish, LALA224,226852−20%

453Wayne County, OHOH116,758847−19%

454Clearfield County, PAPA78,100847−17%

455Nueces County, TXTX352,992843+12%

456Bay County, FLFL204,479840−13%

457Kittitas County, WAWA48,803838+47%

458Marion County, OHOH65,115836−17%

459Moore County, NCNC110,619835−18%

460Sussex County, NJNJ148,063832−36%

461Chemung County, NYNY80,415831−41%

462Bingham County, IDID51,153831+27%

463Napa County, CACA132,949827−27%

464Hampden County, MAMA464,338826−33%

465Coweta County, GAGA160,240824+49%

466Kennebec County, MEME129,067822−25%

467Cabarrus County, NCNC249,725822−8%

468Jackson County, MSMS147,666821+60%

469Adams County, PAPA107,594821−16%

470Union County, NJNJ601,863820−32%

471Newport News, VAVA183,230820−26%

472Cass County, MOMO115,859819+0%

473St. Lucie County, FLFL402,449819−41%

474Warren County, KYKY149,375815+17%

475St. Louis County, MNMN200,518809+9%

476Ulster County, NYNY183,330806−28%

477Lewis County, WAWA88,062804−8%

478Wicomico County, MDMD106,899803+8%

479Richland County, OHOH124,893800−40%

480Canadian County, OKOK187,189800+21%

481Minnehaha County, SDSD212,691799+21%

482Ontario County, NYNY113,130798−35%

483Pitt County, NCNC182,936798+7%

484Athens County, OHOH63,197795−28%

485Franklin County, PAPA160,652795−40%

486Elkhart County, ININ208,774793−22%

487Harrison County, WVWV64,221790+28%

488Lewis and Clark County, MTMT75,331780+24%

489Cape May County, NJNJ93,390780−24%

490Jefferson Parish, LALA431,398775+1%

491Blue Earth County, MNMN70,634774−13%

492Yakima County, WAWA259,185773−15%

493Hardin County, KYKY113,482770+69%

494Wyandotte County, KSKS170,597763+42%

495Oneida County, IDID5,085762+19%

496Vigo County, ININ106,512757−30%

497Ashtabula County, OHOH96,713755−31%

498Lee County, ALAL189,881754−18%

499Alamance County, NCNC186,177754+65%

500Fayette County, PAPA123,021754−52%

SHOWING 1–500 OF 2,971

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Download CSV (full list, 2,971 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES

Frequently asked

Which county has the highest welsh population?

Maricopa County, Arizona ranks #1 with 23,068 (2024 American Community Survey).

What are the top 5 counties by welsh population?

Maricopa County, Arizona, Los Angeles County, California, King County, Washington, Salt Lake County, Utah, San Diego County, California.

How many counties are in this ranking?

2,971 counties qualify after filtering for population minimums and data availability. The ranking covers 2024 ACS 5-year data.

How is welsh population measured?

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