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. The median across all 2,971 is 128. Biggest climber in the top 100 since 2020: New York County, NY, up 37 places to #37.

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%

07▲2Utah County, UTUT759,85912,736+3%

08▲2Allegheny County, PAPA1,225,03511,998−24%

09▼2Harris County, TXTX5,045,02611,943−7%

10▼2Orange County, CACA3,149,50711,326−30%

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

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

13▲1Tarrant County, TXTX2,248,4668,363−8%

14▲10Montgomery County, PAPA877,6438,023−17%

15▼2Clark County, NVNV2,407,2267,938−22%

16▼1Lackawanna County, PAPA216,5027,526−44%

17▼1Riverside County, CACA2,544,9167,383−26%

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

19▼2Wake County, NCNC1,257,2357,1670%

20▲5Pima County, AZAZ1,074,6857,122−8%

21▼1Dallas County, TXTX2,661,3976,806−19%

22▼3Sacramento County, CACA1,618,4606,654−29%

23▼1Fairfax County, VAVA1,167,8736,628−19%

24▲5Travis County, TXTX1,389,6706,496−3%

25▲13Ada County, IDID546,1416,496+9%

26▼3Cuyahoga County, OHOH1,232,9256,373−26%

27▲6Hennepin County, MNMN1,284,7846,282−18%

28▼1Middlesex County, MAMA1,669,9796,188−7%

29▼3Snohomish County, WAWA870,6566,121−18%

30▼9Chester County, PAPA557,1166,118−28%

31▲6Bexar County, TXTX2,160,0885,995−3%

32▼4Pierce County, WAWA946,2885,957−24%

33▲3Davis County, UTUT381,2275,873−14%

34▲8El Paso County, COCO757,0405,863−12%

35▼3Hillsborough County, FLFL1,574,1155,653−28%

36▲7Jefferson County, COCO580,4515,524−1%

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

38▲1Bucks County, PAPA647,8285,359−36%

39▼9Oakland County, MIMI1,288,3375,291−41%

40▼5Contra Costa County, CACA1,170,0705,206−25%

41▲5Lancaster County, PAPA563,1595,116−14%

42▼11Pinellas County, FLFL948,5635,100−34%

43▲13Hamilton County, OHOH838,4185,093−14%

44▲1San Bernardino County, CACA2,224,0915,084−38%

45▼11Summit County, OHOH538,3765,043−28%

46▲22Brevard County, FLFL663,9825,035+28%

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

48▲7Philadelphia County, PAPA1,574,2814,991+15%

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

50▼10Johnson County, KSKS636,9064,960−21%

51▼4Spokane County, WAWA558,3444,944−3%

52▲2Wayne County, MIMI1,769,0384,870−23%

53▼2Alameda County, CACA1,636,6304,857−23%

54▲21Orange County, FLFL1,528,0024,789−19%

55▲7Baltimore County, MDMD847,6504,669−24%

56▲8Duval County, FLFL1,062,9634,633+5%

57▼7Stark County, OHOH373,7714,482−32%

58▲23Denver County, COCO740,6134,436−2%

59▲29Clark County, WAWA532,1194,351−11%

60▼1Berks County, PAPA440,0724,312−29%

61▼4Washington County, OROR611,7084,303−25%

62▲3Oneida County, NYNY226,3924,294−41%

63▲10Arapahoe County, COCO673,8204,289−7%

64▼12St. Louis County, MOMO990,9114,265−29%

65▼2Jefferson County, KYKY795,2224,260+7%

66Marion County, ININ992,1964,232−21%

67▼6Jackson County, MOMO732,9944,213−19%

68▲1Williamson County, TXTX752,8274,189+44%

69▼28Santa Clara County, CACA1,914,3914,174−49%

70▼22Denton County, TXTX1,069,3464,163−6%

71▼18Fulton County, GAGA1,098,7914,163+8%

72▲19Larimer County, COCO377,2924,154+27%

73▲6York County, PAPA473,1974,141−20%

74▲2Clackamas County, OROR426,2804,126−9%

75▼15Montgomery County, MDMD1,074,5824,052−32%

76▲7Palm Beach County, FLFL1,575,7264,040−29%

77▲8Monroe County, NYNY750,5063,941−25%

78▲15New Castle County, DEDE588,0263,931−31%

79▲1Dane County, WIWI590,3753,906−10%

80▲2Weber County, UTUT278,1743,867−5%

81▲17Lee County, FLFL875,6073,799−20%

82▲20Sonoma County, CACA486,4443,784−11%

83▲4Lane County, OROR381,5843,766−14%

84▼14Lehigh County, PAPA384,3833,766−45%

85▲11Polk County, IAIA516,5463,729−4%

86▲22Pasco County, FLFL674,5163,717−8%

87▲16Cumberland County, PAPA277,2703,714−12%

88▲22Bernalillo County, NMNM667,6013,668−17%

89▲6Erie County, NYNY946,7413,634−30%

90▼1Tulsa County, OKOK698,7823,618−13%

91▲9Knox County, TNTN511,4533,613−4%

92▼21Anne Arundel County, MDMD603,3803,595−39%

93▼1Oklahoma County, OKOK822,1253,542−8%

94▲3Kings County, NYNY2,653,9633,522+35%

95▼17Ventura County, CACA830,8513,465−32%

96▼2Sarasota County, FLFL479,9583,462+1%

97▲19Westmoreland County, PAPA349,3243,460−29%

98▲14San Francisco County, CACA826,0793,459−9%

99▲16Macomb County, MIMI886,2213,418−8%

100▲13Montgomery County, TXTX781,1943,370+38%

101▲6Davidson County, TNTN745,9043,354−15%

102▼44Delaware County, PAPA580,9373,352−47%

103▼4Boulder County, COCO328,5603,332+2%

104▼20Montgomery County, OHOH539,5983,261−32%

105▲34Douglas County, COCO399,3963,252−5%

106▼29Broward County, FLFL2,013,3173,230−34%

107▼17Cobb County, GAGA793,3453,218−27%

108▲44Prince William County, VAVA502,9663,187+24%

109▼5Delaware County, OHOH242,0323,171−18%

110▼38Northampton County, PAPA324,4113,159−48%

111▲7Gwinnett County, GAGA1,018,0993,144−10%

112▲14DuPage County, ILIL934,2983,130−29%

113▼27Greenville County, SCSC583,1253,086+24%

114▲9Placer County, CACA442,0813,082+14%

115▲9Cumberland County, MEME317,2222,997+18%

116▲18Manatee County, FLFL468,2002,9920%

117▲48Kent County, MIMI675,2322,979+9%

118▲12Washoe County, NVNV509,3862,959−15%

119▲37DeKalb County, GAGA774,3942,949+2%

120▼19Sedgwick County, KSKS538,4332,947−16%

121▲14Hamilton County, TNTN390,8332,877+23%

122Capitol Planning Region, CTCT994,1152,821–

123▲10Greene County, MOMO309,2862,784+23%

124▼57Mahoning County, OHOH224,7062,778−48%

125▼14Kern County, CACA927,0682,716−20%

126▲49Butler County, OHOH400,1282,692−8%

127▼7Onondaga County, NYNY466,5842,685−41%

128▲39Gloucester County, NJNJ312,6382,677+5%

129▲18Washington County, UTUT213,6702,655−16%

130▲2District of Columbia, DCDC693,6452,645−1%

131▲45Yavapai County, AZAZ252,5522,640+21%

132▼26Volusia County, FLFL606,5732,603−15%

133▲44Cleveland County, OKOK303,9732,602+27%

134▲9Licking County, OHOH185,5642,574−23%

135▼7Virginia Beach, VAVA453,7372,543−35%

136▲46Thurston County, WAWA304,2612,542−15%

137▲78Whatcom County, WAWA236,3922,513+37%

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

139▲21Adams County, COCO554,6682,488+3%

140▲23Allen County, ININ402,3292,471+41%

141▼24Fayette County, KYKY329,7512,456+5%

142▼6Trumbull County, OHOH198,9722,438−52%

143▲19Dauphin County, PAPA293,3512,421−41%

144▼23Polk County, FLFL874,7902,420−19%

145▲10Lorain County, OHOH323,2192,407−28%

146▲75St. Johns County, FLFL346,3282,399+77%

147▲55Leon County, FLFL299,0482,381−10%

148▼21Suffolk County, NYNY1,546,0902,372−37%

149▼24Cache County, UTUT145,0002,372−10%

150▼1Washington County, PAPA210,8022,371−5%

151▼22Pinal County, AZAZ539,3802,370+16%

152▲7Guilford County, NCNC562,2342,368−2%

153▼39Schuylkill County, PAPA145,0852,363−48%

154▲26Benton County, WAWA221,7222,3550%

155▲15Charleston County, SCSC436,2002,354+9%

156▲5Milwaukee County, WIWI924,2162,346−24%

157▼9San Mateo County, CACA743,5682,314−28%

158▲10Essex County, MAMA826,6532,312−21%

159▼15Douglas County, NENE606,4602,311−26%

160▼20Loudoun County, VAVA449,7492,305−15%

161▼39Kitsap County, WAWA283,3742,290−12%

162▼12Williamson County, TNTN272,0612,268+14%

163▲21Hamilton County, ININ387,0362,263−17%

164▲23Sussex County, DEDE277,1402,251−8%

165▼46Jefferson County, ALAL665,7422,245−33%

166▼20Broome County, NYNY195,7362,238−50%

167▼3Fresno County, CACA1,035,4562,234−44%

168▼10Washtenaw County, MIMI370,2142,234−30%

169▼32Waukesha County, WIWI417,2102,223−20%

170▲8San Luis Obispo County, CACA282,3672,193−19%

171▲10Stanislaus County, CACA557,7192,166−24%

172▲1Escambia County, FLFL333,8342,152+36%

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

174▲31Cherokee County, GAGA299,2732,146+8%

175▼37Chesterfield County, VAVA397,1482,142−24%

176▲16Harford County, MDMD266,4462,138−22%

177▲23Horry County, SCSC427,5512,130+9%

178▲28Medina County, OHOH185,0252,124+9%

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

180▲81Mobile County, ALAL411,6582,101+46%

181▲18Norfolk County, MAMA739,7492,094−16%

182▼16Santa Barbara County, CACA442,0652,089−39%

183▼42Weld County, COCO378,4262,085+16%

184▲95Durham County, NCNC347,2402,059+19%

185▼11Madison County, ALAL433,5162,049+17%

186▼3Hillsborough County, NHNH433,4152,044+9%

187▲32Dakota County, MNMN457,7102,028−22%

188▼31Worcester County, MAMA888,5022,005−36%

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

190▼81Shelby County, TNTN910,2262,000−40%

191▲31Santa Cruz County, CACA258,8521,992−19%

192▲61Morris County, NJNJ524,2511,987−28%

193▲76Mesa County, COCO162,8451,964+27%

194▼43Kootenai County, IDID191,8641,963+45%

195▲55Washington County, ARAR271,2131,956+90%

196▲14Buncombe County, NCNC277,4171,956−27%

197▲1Honolulu County, HIHI988,7031,947−34%

198▲15Clermont County, OHOH216,9771,946+33%

199▲25San Joaquin County, CACA823,8151,937−15%

200▲35Pulaski County, ARAR404,6111,922+13%

201▼70Seminole County, FLFL491,8841,922−45%

202▼33Rutherford County, TNTN386,3521,913+29%

203▲5Lake County, ILIL719,3391,902−38%

204▼18Clay County, MOMO265,0321,895−21%

205▲53Fort Bend County, TXTX975,1911,892+2%

206▼13St. Charles County, MOMO426,4991,862−31%

207▲41Centre County, PAPA157,3931,859−16%

208▲8Suffolk County, MAMA791,8911,858−14%

209▼56Forsyth County, NCNC401,7181,857−25%

210▼39Beaver County, PAPA166,0321,857−13%

211▼22Will County, ILIL712,2531,854−22%

212▲34Genesee County, MIMI401,0931,850−2%

213▲27Johnston County, NCNC256,4481,849+156%

214▼2Ocean County, NJNJ673,7461,847−47%

215▼8Arlington County, VAVA243,9311,845+4%

216▲20Bell County, TXTX402,2481,829+60%

217▲1Deschutes County, OROR213,0721,825−12%

218▼30Lucas County, OHOH423,3471,811−23%

219▼77Marion County, OROR355,7771,787−34%

220▲36Marin County, CACA253,6941,781−23%

221▲36New Hanover County, NCNC245,9591,780+10%

222▼28Anchorage, AKAK287,1551,774−28%

223▼26Ingham County, MIMI289,7091,774−10%

224▼39Lake County, FLFL456,0681,771−28%

225▲8Westchester County, NYNY1,015,7431,765−23%

226▲5Jackson County, OROR221,7951,757−14%

227▲11Butler County, PAPA200,1691,752−42%

228▲58Orange County, NCNC152,4981,675+29%

229▲14Solano County, CACA455,3761,671−10%

230▲36Baltimore, MDMD569,9971,670−15%

231▲49Marion County, FLFL442,6601,667−32%

232▼37Lake County, OHOH232,2171,656−38%

233▼24Rockingham County, NHNH324,0771,655−11%

234▲67Canyon County, IDID275,1231,650−12%

235▼32Bannock County, IDID91,5911,636−18%

236▲31Kane County, ILIL525,7571,633−39%

237▼26Howard County, MDMD339,1831,628−33%

238▲57Galveston County, TXTX372,2071,626−2%

239▼48Ramsey County, MNMN541,6231,606−29%

240▼68Frederick County, MDMD302,8831,606−35%

241▼9Okaloosa County, FLFL221,8101,605+1%

242▼16Erie County, PAPA265,8321,600−35%

243▲20Mohave County, AZAZ228,1021,595−11%

244▼43Alachua County, FLFL290,0281,592−6%

245▼31Collier County, FLFL417,1311,591−28%

246▼17York County, SCSC306,8871,589+25%

247▼13Lancaster County, NENE334,0491,583−26%

248▼7Saratoga County, NYNY241,3431,562−20%

249▲87Queens County, NYNY2,358,1821,541−8%

250▼33Monmouth County, NJNJ651,0351,537−40%

251▲41Clay County, FLFL239,5931,537+20%

252▲10Lubbock County, TXTX328,9061,531+8%

253▼14Warren County, OHOH257,1811,529−10%

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

255▲93Hawaii County, HIHI210,0431,525+90%

256▲83Santa Fe County, NMNM156,9071,520+28%

257▲39Comal County, TXTX209,1661,511+107%

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

259▼17Albany County, NYNY321,2251,507−34%

260▼1Onslow County, NCNC217,1751,498+67%

261▲135Baldwin County, ALAL267,7611,487+68%

262▲128Providence County, RIRI678,1791,479+5%

263▼109Fairfield County, OHOH169,7521,477−40%

264▲13Forsyth County, GAGA282,8051,468+28%

265▼5Plymouth County, MAMA546,8291,467−31%

266▼62Henrico County, VAVA342,7751,449−39%

267▲61Hays County, TXTX304,3901,424+46%

268▼16Madison County, ILIL263,1101,422−25%

269▲49Monterey County, CACA433,7291,420−33%

270▲116Spartanburg County, SCSC380,8571,420+46%

271▼51Monroe County, PAPA167,1791,405−41%

272▼27Greene County, OHOH174,3221,404−29%

273▼1Brazoria County, TXTX419,0801,402+13%

274▼47Nassau County, NYNY1,398,9391,394−21%

275▲69Montgomery County, TNTN249,9351,389+39%

276▼27St. Joseph County, ININ272,8611,388+1%

277▲86Clark County, OHOH135,3401,372−3%

278▲21Tompkins County, NYNY104,0471,360+17%

279▼42Cambria County, PAPA128,9681,345−50%

280▲76Miami-Dade County, FLFL2,802,0291,344−25%

281▲28Tulare County, CACA485,1461,339+12%

282▼38Rensselaer County, NYNY160,5101,337−3%

283▼87Mercer County, PAPA107,8601,333−32%

284▲36Shawnee County, KSKS178,6071,326−19%

285▲81Richmond, VAVA237,2571,324−5%

286▲44Douglas County, KSKS120,9201,314+6%

287▲39Shasta County, CACA181,6481,310−23%

288▲45Orleans Parish, LALA362,1541,310+78%

289▼42Osceola County, FLFL481,7181,306+9%

290▲10Tuscarawas County, OHOH92,3731,295−7%

291▲52Jackson County, OHOH32,8171,285−12%

292▲206Madison County, IDID55,1721,283+13%

293▲52Monroe County, ININ143,3451,2820%

294▲38Hernando County, FLFL221,7011,281−8%

295▼7Bergen County, NJNJ977,0261,275−51%

296▲8Linn County, IAIA232,0281,275−31%

297▲40McLennan County, TXTX272,0201,264+11%

298▲118Anoka County, MNMN381,6051,263+14%

299▼29Madison County, NYNY67,1201,261−23%

300▲158Clallam County, WAWA78,2021,261+15%

301▲113St. Tammany Parish, LALA279,1081,254−10%

302▲11Herkimer County, NYNY59,2191,252−38%

303▲39Beaufort County, SCSC204,4331,250−12%

304▼31Skagit County, WAWA132,9751,247−15%

305▼40Butte County, CACA209,2111,246−32%

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

307▼33York County, MEME222,4341,240−17%

308▲11Richland County, SCSC434,9561,237−23%

309▼15Chittenden County, VTVT169,1151,232−31%

310▲90Benton County, ARAR332,5541,227−32%

311▼4Peoria County, ILIL178,5531,209−2%

312▲22Brunswick County, NCNC174,7021,202+15%

313▲2Sangamon County, ILIL194,1701,202−23%

314▼24Sumter County, FLFL157,7721,198+36%

315▲156Sumner County, TNTN215,5381,197+27%

316▲51Northumberland County, PAPA89,9201,192−31%

317▼19Carroll County, MDMD176,6771,188−42%

318▼54Chesapeake, VAVA255,3321,182−21%

319▲99Lebanon County, PAPA146,3801,179+10%

320▼95El Dorado County, CACA192,3231,177−40%

321▼50Chatham County, GAGA311,8551,174−16%

322▲24Kenton County, KYKY175,7791,173−2%

323▲280Sullivan County, TNTN163,7591,172+25%

324▼33Paulding County, GAGA190,9961,164+118%

325▼135Portage County, OHOH163,4041,162−63%

326▼15Wyoming County, PAPA25,7901,159−34%

327▲68Henderson County, NCNC122,3751,155+8%

328▲188Catawba County, NCNC170,1721,152+85%

329▼53Kalamazoo County, MIMI263,7951,148−31%

330▼25Alexandria, VAVA160,6621,148−18%

331▼108Lexington County, SCSC317,5881,146−11%

332▲61Atlantic County, NJNJ278,6571,143−32%

333▼30Merrimack County, NHNH158,0781,142−11%

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

335▲30Johnson County, IAIA160,0441,139+9%

336▲43Boone County, KYKY145,3161,137+19%

337▼44El Paso County, TXTX877,8581,134+16%

338▼110Shelby County, ALAL238,5521,133−23%

339▲25Rutland County, VTVT59,6531,132−38%

340▲22Columbia County, GAGA169,1891,131+58%

341▲32Lycoming County, PAPA112,5871,130−30%

342▲47Benton County, OROR97,7281,126+17%

343▲56Anderson County, TNTN82,0661,124+93%

344▼93Columbiana County, OHOH99,3771,120−43%

345▼56Middlesex County, NJNJ883,3351,119−37%

346▲42Charlotte County, FLFL217,2121,119−20%

347▲83Bristol County, MAMA593,6401,116−17%

348▲44Prince George's County, MDMD970,3741,114−41%

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

350▲73Berkeley County, SCSC274,6661,107−14%

351▲207Hudson County, NJNJ735,0331,098+26%

352▼74Lake County, ININ504,6121,098−42%

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

354▼73Douglas County, OROR111,9511,086−16%

355▲169Union County, OHOH73,4461,078−4%

356▲4Champaign County, ILIL209,9721,078−8%

357▲23Yellowstone County, MTMT172,6921,077−28%

358▲876Orange County, TXTX86,2661,075+518%

359▲65Spotsylvania County, VAVA155,3881,070+7%

360▼54St. Clair County, ILIL250,7081,066−29%

361▼51Tippecanoe County, ININ190,4561,065−22%

362▼15Sarpy County, NENE208,3031,061−26%

363▼79Humboldt County, CACA131,6471,053−2%

364▼81Niagara County, NYNY208,9121,048−41%

365▲132Clark County, ININ130,4511,041+137%

366▲38Allegany County, MDMD66,8481,041−30%

367▲10Gallatin County, MTMT128,7401,039−25%

368▲75Missoula County, MTMT123,5131,038+18%

369▲43Island County, WAWA85,6571,032−20%

370▲114Anderson County, SCSC219,9301,031+16%

371▲36Dutchess County, NYNY300,7081,030−28%

372▼70Mercer County, NJNJ399,2891,029−44%

373▼18Ottawa County, MIMI308,4591,026−13%

374▼60Vanderburgh County, ININ181,9951,022+55%

375▼100Susquehanna County, PAPA38,2371,022−56%

376▼49Jasper County, MOMO127,4281,015+27%

377▲17Norfolk, VAVA231,0131,014−27%

378▲66Martin County, FLFL166,2721,012−9%

379▲5Santa Rosa County, FLFL211,1151,009−19%

380▲74Somerset County, NJNJ356,4861,008−37%

381▲74Porter County, ININ176,0491,007−24%

382▼47Winnebago County, ILIL283,6741,005−28%

383▲140Flathead County, MTMT115,4291,004+2%

384▼12Linn County, OROR132,8431,001−10%

385▲17Bedford County, VAVA83,0591,000+131%

386▼65Wood County, OHOH134,176999−26%

387▼9Cumberland County, NCNC338,473997−27%

388▲18Washington County, NYNY59,353994−14%

389▲44Geauga County, OHOH95,676992−16%

390▼29Washington County, TNTN141,199990+53%

391▲59McLean County, ILIL171,419990−21%

392▼70Kanawha County, WVWV172,381987−40%

393▲17Albemarle County, VAVA118,356984−25%

394▼112Penobscot County, MEME157,967984−13%

395▲27Twin Falls County, IDID97,539980+92%

396▼84Livingston County, MIMI197,315980−20%

397▼44Kent County, DEDE194,786972−22%

398▼29Barnstable County, MAMA233,539969−40%

399▼169Boone County, MOMO191,746967−47%

400▼71Columbia County, PAPA66,193967−48%

401▼114Lawrence County, PAPA83,911964−53%

402▼51McHenry County, ILIL317,751963−36%

403▲50Sebastian County, ARAR130,641962+67%

404▼7Cochise County, AZAZ126,332959−12%

405▲23Orange County, NYNY417,669959−39%

406▼8Washington County, MDMD157,731952−4%

407▼99Brazos County, TXTX249,088950+7%

408▲19Hanover County, VAVA116,423947−2%

409▼92Washington County, MNMN286,895946−15%

410▲209Pickens County, SCSC139,198944+17%

411▼86Cecil County, MDMD107,131942−43%

412▼36Carbon County, PAPA65,868937−35%

413▲51Aiken County, SCSC181,515934+3%

414Greater Bridgeport Planning Region, CTCT337,697932–

415▼12Indian River County, FLFL172,799931−24%

416▲16Chautauqua County, NYNY124,126928−11%

417▲83Citrus County, FLFL171,666924−18%

418▼87Monongalia County, WVWV107,991923−37%

419▼96St. Louis, MOMO278,144921−27%

420▲249Walker County, GAGA70,250920+379%

421▲25Berrien County, MIMI152,444919+4%

422▼11Essex County, NJNJ896,379916−34%

423▼83Union County, NCNC267,674913−25%

424▲109Scott County, IAIA175,259913+7%

425▲161Sandoval County, NMNM159,565912+8%

426▼88Jefferson County, MOMO233,132911−25%

427▼40Iredell County, NCNC211,798910−7%

428▲34Winnebago County, WIWI174,218909−35%

429▼12Bradford County, PAPA59,600908−41%

430▼9Harrison County, MSMS217,136906−4%

431▼90Allen County, OHOH100,881904−54%

432▼3Wayne County, PAPA51,703901−34%

433▲19Fairbanks North Star, AKAK93,972899−5%

434▼51Racine County, WIWI198,919899+5%

435▼65Oswego County, NYNY118,569895−27%

436▼77Natrona County, WYWY80,526894−2%

437Cabell County, WVWV91,183887+5%

438▼13Schenectady County, NYNY162,581885−11%

439▲99Dallas County, IAIA118,457883+43%

440▲332Chelan County, WAWA81,941882+33%

441▼56Blair County, PAPA119,541880−42%

442▲18Pennington County, SDSD116,792880+49%

443▲67Walton County, GAGA112,696868+107%

444▲38Yamhill County, OROR110,024867−28%

445▲186Kaufman County, TXTX209,235865+134%

446▼55Saginaw County, MIMI187,688864+24%

447▼150Iron County, UTUT67,141864−29%

448▲13Rock Island County, ILIL141,869857+36%

449▲42Charles County, MDMD176,593856+8%

450▲182Warren County, NYNY65,020855−13%

451▲16Delaware County, ININ113,106854+15%

452▲23Caddo Parish, LALA224,226852−20%

453▼8Wayne County, OHOH116,758847−19%

454▼5Clearfield County, PAPA78,100847−17%

455▼42Nueces County, TXTX352,992843+12%

456▼102Bay County, FLFL204,479840−13%

457▲82Kittitas County, WAWA48,803838+47%

458▲158Marion County, OHOH65,115836−17%

459▼33Moore County, NCNC110,619835−18%

460▲151Sussex County, NJNJ148,063832−36%

461▼56Chemung County, NYNY80,415831−41%

462▲205Bingham County, IDID51,153831+27%

463▲18Napa County, CACA132,949827−27%

464▲14Hampden County, MAMA464,338826−33%

465▲48Coweta County, GAGA160,240824+49%

466▲79Kennebec County, MEME129,067822−25%

467▼99Cabarrus County, NCNC249,725822−8%

468▲60Jackson County, MSMS147,666821+60%

469▲79Adams County, PAPA107,594821−16%

470▲15Union County, NJNJ601,863820−32%

471▼31Newport News, VAVA183,230820−26%

472▲17Cass County, MOMO115,8598190%

473▼116St. Lucie County, FLFL402,449819−41%

474▼32Warren County, KYKY149,375815+17%

475▲159St. Louis County, MNMN200,518809+9%

476▼95Ulster County, NYNY183,330806−28%

477▼68Lewis County, WAWA88,062804−8%

478▼37Wicomico County, MDMD106,899803+8%

479▼104Richland County, OHOH124,893800−40%

480▲3Canadian County, OKOK187,189800+21%

481▲59Minnehaha County, SDSD212,691799+21%

482▼17Ontario County, NYNY113,130798−35%

483▲71Pitt County, NCNC182,936798+7%

484▲125Athens County, OHOH63,197795−28%

485▼230Franklin County, PAPA160,652795−40%

486▼52Elkhart County, ININ208,774793−22%

487▲1Harrison County, WVWV64,221790+28%

488▼69Lewis and Clark County, MTMT75,331780+24%

489▼50Cape May County, NJNJ93,390780−24%

490▲53Jefferson Parish, LALA431,398775+1%

491▲17Blue Earth County, MNMN70,634774−13%

492▼35Yakima County, WAWA259,185773−15%

493▲155Hardin County, KYKY113,482770+69%

494▲221Wyandotte County, KSKS170,597763+42%

495▲113Oneida County, IDID5,085762+19%

496▼95Vigo County, ININ106,512757−30%

497▼31Ashtabula County, OHOH96,713755−31%

498▲209Lee County, ALAL189,881754−18%

499▼36Alamance County, NCNC186,177754+65%

500▼14Fayette County, PAPA123,021754−52%

SHOWING 1–500 OF 2,971

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Download CSV (full list, 2,971 rows)

UPDATED 2026-09-11 · 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).