RANKING · 2010 CENSUS · 500 SHOWN OF 2,972

Largest Welsh population, US counties · 2010

US counties ranked by the number of residents who are Welsh ancestry, from the 2023 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. Los Angeles County, California leads at 28,387. 2,972 counties qualify in total. California carries 6 of the top 25 entries.

All statesAll rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPWELSH POPULATIONVS 2000

01Los Angeles County, CACA9,694,93428,387–

02Maricopa County, AZAZ4,689,55825,038–

03King County, WAWA2,344,93920,842–

04Salt Lake County, UTUT1,220,91620,775–

05San Diego County, CACA3,282,24820,179–

06Franklin County, OHOH1,361,53618,461–

07Orange County, CACA3,149,50716,156–

08Luzerne County, PAPA332,12615,996–

09Allegheny County, PAPA1,225,03515,698–

10Lackawanna County, PAPA216,50213,476–

11Cook County, ILIL5,194,62513,391–

12Harris County, TXTX5,045,02612,883–

13Utah County, UTUT759,85912,396–

14Clark County, NVNV2,407,22610,230–

15Riverside County, CACA2,544,91610,024–

16Montgomery County, PAPA877,6439,701–

17Sacramento County, CACA1,618,4609,424–

18Tarrant County, TXTX2,248,4669,093–

19Oakland County, MIMI1,288,3378,973–

20Cuyahoga County, OHOH1,232,9258,613–

21Multnomah County, OROR795,3918,539–

22Chester County, PAPA557,1168,539–

23Bucks County, PAPA647,8288,429–

24Dallas County, TXTX2,661,3978,402–

25Santa Clara County, CACA1,914,3918,208–

26San Bernardino County, CACA2,224,0918,205–

27Fairfax County, VAVA1,167,8738,194–

28Hillsborough County, FLFL1,574,1157,873–

29Pierce County, WAWA946,2887,814–

30Pima County, AZAZ1,074,6857,774–

31Pinellas County, FLFL948,5637,671–

32Hennepin County, MNMN1,284,7847,655–

33Snohomish County, WAWA870,6567,499–

34Oneida County, NYNY226,3927,279–

35Wake County, NCNC1,257,2357,154–

36Summit County, OHOH538,3767,018–

37Contra Costa County, CACA1,170,0706,915–

38Lehigh County, PAPA384,3836,897–

39Davis County, UTUT381,2276,862–

40Travis County, TXTX1,389,6706,730–

41Mecklenburg County, NCNC1,233,3836,715–

42El Paso County, COCO757,0406,681–

43Middlesex County, MAMA1,669,9796,622–

44Stark County, OHOH373,7716,556–

45Wayne County, MIMI1,769,0386,345–

46Delaware County, PAPA580,9376,317–

47Alameda County, CACA1,636,6306,309–

48Johnson County, KSKS636,9066,256–

49Bexar County, TXTX2,160,0886,154–

50Baltimore County, MDMD847,6506,147–

51Berks County, PAPA440,0726,071–

52Northampton County, PAPA324,4116,030–

53St. Louis County, MOMO990,9116,015–

54New York County, NYNY1,664,8626,000–

55Montgomery County, MDMD1,074,5825,998–

56Lancaster County, PAPA563,1595,976–

57Hamilton County, OHOH838,4185,952–

58Ada County, IDID546,1415,941–

59Orange County, FLFL1,528,0025,909–

60Anne Arundel County, MDMD603,3805,863–

61Washington County, OROR611,7085,707–

62Palm Beach County, FLFL1,575,7265,702–

63New Castle County, DEDE588,0265,698–

64Jefferson County, COCO580,4515,595–

65Marion County, ININ992,1965,354–

66Mahoning County, OHOH224,7065,295–

67Monroe County, NYNY750,5065,288–

68Jackson County, MOMO732,9945,194–

69Erie County, NYNY946,7415,167–

70York County, PAPA473,1975,157–

71Ventura County, CACA830,8515,098–

72Spokane County, WAWA558,3445,085–

73Trumbull County, OHOH198,9725,069–

74Clark County, WAWA532,1194,869–

75Broward County, FLFL2,013,3174,858–

76Collin County, TXTX1,297,1794,856–

77Westmoreland County, PAPA349,3244,853–

78Montgomery County, OHOH539,5984,789–

79Lee County, FLFL875,6074,753–

80Arapahoe County, COCO673,8204,626–

81Onondaga County, NYNY466,5844,566–

82Schuylkill County, PAPA145,0854,540–

83Denver County, COCO740,6134,528–

84Clackamas County, OROR426,2804,516–

85Broome County, NYNY195,7364,482–

86Denton County, TXTX1,069,3464,437–

87Duval County, FLFL1,062,9634,429–

88Bernalillo County, NMNM667,6014,427–

89Cobb County, GAGA793,3454,414–

90Lane County, OROR381,5844,402–

91DuPage County, ILIL934,2984,401–

92Dane County, WIWI590,3754,351–

93Philadelphia County, PAPA1,574,2814,345–

94Sonoma County, CACA486,4444,244–

95Cumberland County, PAPA277,2704,197–

96Tulsa County, OKOK698,7824,176–

97Dauphin County, PAPA293,3514,136–

98Weber County, UTUT278,1744,054–

99Pasco County, FLFL674,5164,051–

100Fresno County, CACA1,035,4564,002–

101Jefferson County, KYKY795,2223,979–

102Davidson County, TNTN745,9043,945–

103Brevard County, FLFL663,9823,942–

104Virginia Beach, VAVA453,7373,937–

105Polk County, IAIA516,5463,877–

106Fulton County, GAGA1,098,7913,865–

107Delaware County, OHOH242,0323,864–

108Oklahoma County, OKOK822,1253,848–

109San Francisco County, CACA826,0793,806–

110Knox County, TNTN511,4533,780–

111Suffolk County, NYNY1,546,0903,742–

112Burlington County, NJNJ481,4393,721–

113Macomb County, MIMI886,2213,714–

114Sedgwick County, KSKS538,4333,509–

115Ocean County, NJNJ673,7463,505–

116Gwinnett County, GAGA1,018,0993,498–

117Seminole County, FLFL491,8843,476–

118Washoe County, NVNV509,3863,468–

119Sarasota County, FLFL479,9583,438–

120Douglas County, COCO399,3963,434–

121Santa Barbara County, CACA442,0653,424–

122Kern County, CACA927,0683,404–

123Licking County, OHOH185,5643,351–

124Lorain County, OHOH323,2193,341–

125Jefferson County, ALAL665,7423,338–

126Shelby County, TNTN910,2263,324–

127Larimer County, COCO377,2923,262–

128Boulder County, COCO328,5603,260–

129San Mateo County, CACA743,5683,202–

130Washtenaw County, MIMI370,2143,194–

131Washington County, UTUT213,6703,156–

132Douglas County, NENE606,4603,120–

133Worcester County, MAMA888,5023,117–

134Portage County, OHOH163,4043,117–

135Milwaukee County, WIWI924,2163,102–

136Volusia County, FLFL606,5733,079–

137Lake County, ILIL719,3393,046–

138Butler County, PAPA200,1693,026–

139Manatee County, FLFL468,2003,000–

140Polk County, FLFL874,7903,000–

141Thurston County, WAWA304,2612,992–

142Camden County, NJNJ535,7992,981–

143Essex County, MAMA826,6532,931–

144Honolulu County, HIHI988,7032,930–

145Butler County, OHOH400,1282,921–

146Williamson County, TXTX752,8272,909–

147DeKalb County, GAGA774,3942,903–

148Stanislaus County, CACA557,7192,848–

149Chesterfield County, VAVA397,1482,837–

150Waukesha County, WIWI417,2102,770–

151Morris County, NJNJ524,2512,757–

152Harford County, MDMD266,4462,757–

153Hamilton County, ININ387,0362,739–

154Kent County, MIMI675,2322,730–

155San Luis Obispo County, CACA282,3672,712–

156Loudoun County, VAVA449,7492,710–

157Marion County, OROR355,7772,705–

158St. Charles County, MOMO426,4992,702–

159Cambria County, PAPA128,9682,700–

160Placer County, CACA442,0812,695–

161District of Columbia, DCDC693,6452,671–

162Buncombe County, NCNC277,4172,666–

163Lake County, OHOH232,2172,661–

164Leon County, FLFL299,0482,660–

165Kane County, ILIL525,7572,658–

166Cache County, UTUT145,0002,629–

167Kitsap County, WAWA283,3742,607–

168Kings County, NYNY2,653,9632,606–

169Bergen County, NJNJ977,0262,606–

170Dakota County, MNMN457,7102,593–

171Prince William County, VAVA502,9662,569–

172Gloucester County, NJNJ312,6382,552–

173Monmouth County, NJNJ651,0352,541–

174Cumberland County, MEME317,2222,540–

175Norfolk County, MAMA739,7492,506–

176Forsyth County, NCNC401,7182,486–

177Greenville County, SCSC583,1252,486–

178Washington County, PAPA210,8022,485–

179Frederick County, MDMD302,8832,484–

180Lake County, FLFL456,0682,476–

181Fairfield County, OHOH169,7522,475–

182Marion County, FLFL442,6602,469–

183Sussex County, DEDE277,1402,459–

184Erie County, PAPA265,8322,455–

185Santa Cruz County, CACA258,8522,453–

186Anchorage, AKAK287,1552,452–

187Montgomery County, TXTX781,1942,444–

188Howard County, MDMD339,1832,437–

189Guilford County, NCNC562,2342,422–

190Adams County, COCO554,6682,418–

191Clay County, MOMO265,0322,390–

192Monroe County, PAPA167,1792,386–

193Will County, ILIL712,2532,372–

194Henrico County, VAVA342,7752,366–

195Benton County, WAWA221,7222,363–

196Fayette County, KYKY329,7512,350–

197Hamilton County, TNTN390,8332,341–

198Lucas County, OHOH423,3472,337–

199Susquehanna County, PAPA38,2372,333–

200Marin County, CACA253,6942,309–

201Westchester County, NYNY1,015,7432,296–

202Albany County, NYNY321,2252,282–

203San Joaquin County, CACA823,8152,274–

204Ramsey County, MNMN541,6232,256–

205Greene County, MOMO309,2862,255–

206Collier County, FLFL417,1312,223–

207Centre County, PAPA157,3932,210–

208Yavapai County, AZAZ252,5522,175–

209Charleston County, SCSC436,2002,167–

210Suffolk County, MAMA791,8912,151–

211Lancaster County, NENE334,0492,147–

212Beaver County, PAPA166,0322,140–

213Plymouth County, MAMA546,8292,138–

214Monterey County, CACA433,7292,120–

215Deschutes County, OROR213,0722,071–

216Carroll County, MDMD176,6772,057–

217Lawrence County, PAPA83,9112,056–

218Jackson County, OROR221,7952,053–

219Pinal County, AZAZ539,3802,045–

220Cleveland County, OKOK303,9732,042–

221Herkimer County, NYNY59,2192,032–

222Bannock County, IDID91,5911,999–

223Cherokee County, GAGA299,2731,986–

224Williamson County, TNTN272,0611,983–

225Allen County, OHOH100,8811,982–

226Columbiana County, OHOH99,3771,979–

227Greene County, OHOH174,3221,975–

228Baltimore, MDMD569,9971,970–

229Ingham County, MIMI289,7091,962–

230Mercer County, PAPA107,8601,958–

231Horry County, SCSC427,5511,957–

232El Dorado County, CACA192,3231,950–

233Medina County, OHOH185,0251,943–

234Saratoga County, NYNY241,3431,941–

235Lake County, ININ504,6121,892–

236Madison County, ILIL263,1101,891–

237Hillsborough County, NHNH433,4151,882–

238Genesee County, MIMI401,0931,880–

239Prince George's County, MDMD970,3741,879–

240Canyon County, IDID275,1231,872–

241Rockingham County, NHNH324,0771,868–

242Columbia County, PAPA66,1931,868–

243Fort Bend County, TXTX975,1911,862–

244Linn County, IAIA232,0281,856–

245Mercer County, NJNJ399,2891,853–

246Solano County, CACA455,3761,851–

247Butte County, CACA209,2111,845–

248Whatcom County, WAWA236,3921,840–

249Bonneville County, IDID135,7711,822–

250Rutland County, VTVT59,6531,816–

251Boone County, MOMO191,7461,808–

252Weld County, COCO378,4261,803–

253Mohave County, AZAZ228,1021,795–

254Benton County, ARAR332,5541,795–

255Chittenden County, VTVT169,1151,789–

256Miami-Dade County, FLFL2,802,0291,786–

257Niagara County, NYNY208,9121,779–

258Middlesex County, NJNJ883,3351,778–

259Arlington County, VAVA243,9311,767–

260Wyoming County, PAPA25,7901,758–

261Allen County, ININ402,3291,757–

262Madison County, ALAL433,5161,756–

263Nassau County, NYNY1,398,9391,755–

264Northumberland County, PAPA89,9201,738–

265Durham County, NCNC347,2401,736–

266Pulaski County, ARAR404,6111,707–

267Shasta County, CACA181,6481,707–

268Warren County, OHOH257,1811,691–

269Alachua County, FLFL290,0281,686–

270Atlantic County, NJNJ278,6571,683–

271Queens County, NYNY2,358,1821,666–

272Galveston County, TXTX372,2071,665–

273Kalamazoo County, MIMI263,7951,652–

274Cecil County, MDMD107,1311,647–

275Kanawha County, WVWV172,3811,643–

276Shawnee County, KSKS178,6071,633–

277Madison County, NYNY67,1201,628–

278Lycoming County, PAPA112,5871,624–

279New Hanover County, NCNC245,9591,617–

280Somerset County, NJNJ356,4861,608–

281Barnstable County, MAMA233,5391,607–

282Richland County, SCSC434,9561,602–

283Okaloosa County, FLFL221,8101,585–

284Escambia County, FLFL333,8341,584–

285Orange County, NYNY417,6691,567–

286Fayette County, PAPA123,0211,565–

287Sangamon County, ILIL194,1701,561–

288Bradford County, PAPA59,6001,552–

289Mesa County, COCO162,8451,541–

290Blair County, PAPA119,5411,508–

291Yellowstone County, MTMT172,6921,497–

292McHenry County, ILIL317,7511,494–

293Chesapeake, VAVA255,3321,492–

294St. Clair County, ILIL250,7081,491–

295York County, MEME222,4341,490–

296Rutherford County, TNTN386,3521,487–

297Allegany County, MDMD66,8481,482–

298Shelby County, ALAL238,5521,472–

299Skagit County, WAWA132,9751,472–

300Monongalia County, WVWV107,9911,465–

301Clermont County, OHOH216,9771,461–

302Nevada County, CACA101,9111,457–

303Indiana County, PAPA82,8781,457–

304Jackson County, OHOH32,8171,456–

305Carbon County, PAPA65,8681,447–

306Mobile County, ALAL411,6581,442–

307Dutchess County, NYNY300,7081,432–

308Sarpy County, NENE208,3031,430–

309Beaufort County, SCSC204,4331,424–

310Lubbock County, TXTX328,9061,421–

311Clark County, OHOH135,3401,414–

312Providence County, RIRI678,1791,413–

313Chemung County, NYNY80,4151,410–

314Alexandria, VAVA160,6621,404–

315Yolo County, CACA224,4101,401–

316Charlotte County, FLFL217,2121,401–

317Winnebago County, WIWI174,2181,400–

318St. Tammany Parish, LALA279,1081,396–

319Chatham County, GAGA311,8551,393–

320Richmond, VAVA237,2571,390–

321Norfolk, VAVA231,0131,390–

322St. Lucie County, FLFL402,4491,389–

323Hernando County, FLFL221,7011,388–

324Tuscarawas County, OHOH92,3731,387–

325Winnebago County, ILIL283,6741,387–

326Gallatin County, MTMT128,7401,385–

327Essex County, NJNJ896,3791,385–

328St. Joseph County, ININ272,8611,380–

329Rensselaer County, NYNY160,5101,378–

330Wayne County, PAPA51,7031,375–

331Cumberland County, NCNC338,4731,364–

332Tippecanoe County, ININ190,4561,360–

333Kootenai County, IDID191,8641,354–

334St. Johns County, FLFL346,3281,353–

335Bristol County, MAMA593,6401,349–

336Wood County, OHOH134,1761,348–

337Crawford County, PAPA81,7921,334–

338Steuben County, NYNY91,8551,328–

339Richland County, OHOH124,8931,327–

340Porter County, ININ176,0491,320–

341Franklin County, PAPA160,6521,318–

342Albemarle County, VAVA118,3561,311–

343East Baton Rouge Parish, LALA456,1801,307–

344Orange County, NCNC152,4981,299–

345Douglas County, OROR111,9511,292–

346Sussex County, NJNJ148,0631,290–

347Island County, WAWA85,6571,288–

348Merrimack County, NHNH158,0781,286–

349Lexington County, SCSC317,5881,282–

350Berkeley County, SCSC274,6661,281–

351Monroe County, ININ143,3451,280–

352Clay County, FLFL239,5931,278–

353York County, SCSC306,8871,276–

354St. Louis, MOMO278,1441,263–

355Warren County, NJNJ112,9531,253–

356Miami County, OHOH112,6341,252–

357McLean County, ILIL171,4191,248–

358Santa Rosa County, FLFL211,1151,245–

359Douglas County, KSKS120,9201,239–

360Kent County, DEDE194,7861,239–

361Brazoria County, TXTX419,0801,236–

362Peoria County, ILIL178,5531,236–

363Oswego County, NYNY118,5691,232–

364Ontario County, NYNY113,1301,231–

365Hampden County, MAMA464,3381,227–

366Tioga County, NYNY47,4531,226–

367Iron County, UTUT67,1411,224–

368Union County, NCNC267,6741,223–

369Livingston County, MIMI197,3151,221–

370Indian River County, FLFL172,7991,217–

371Jefferson County, MOMO233,1321,214–

372Union County, NJNJ601,8631,212–

373Tulare County, CACA485,1461,199–

374Yamhill County, OROR110,0241,196–

375Osceola County, FLFL481,7181,196–

376Kenton County, KYKY175,7791,194–

377Henry County, GAGA264,9221,191–

378Santa Fe County, NMNM156,9071,188–

379Coconino County, AZAZ144,3681,184–

380Ottawa County, MIMI308,4591,175–

381Geauga County, OHOH95,6761,175–

382Champaign County, ILIL209,9721,172–

383Tompkins County, NYNY104,0471,158–

384Washington County, NYNY59,3531,157–

385Somerset County, PAPA72,0041,154–

386Navajo County, AZAZ109,9461,152–

387Maui County, HIHI160,5921,148–

388Jefferson County, OHOH63,5971,147–

389Hunterdon County, NJNJ131,7811,145–

390Forsyth County, GAGA282,8051,144–

391Stafford County, VAVA170,8031,143–

392Bell County, TXTX402,2481,141–

393McLennan County, TXTX272,0201,139–

394Madison County, IDID55,1721,133–

395Napa County, CACA132,9491,132–

396Box Elder County, UTUT65,3201,128–

397Citrus County, FLFL171,6661,127–

398Union County, OHOH73,4461,126–

399Penobscot County, MEME157,9671,126–

400Cowlitz County, WAWA114,8851,119–

401Martin County, FLFL166,2721,117–

402Ulster County, NYNY183,3301,117–

403Otsego County, NYNY60,5891,116–

404Linn County, OROR132,8431,116–

405Newport News, VAVA183,2301,112–

406Washington County, MNMN286,8951,111–

407Athens County, OHOH63,1971,110–

408Anoka County, MNMN381,6051,108–

409Ashtabula County, OHOH96,7131,102–

410Kennebec County, MEME129,0671,099–

411Fayette County, GAGA125,1561,098–

412Clallam County, WAWA78,2021,094–

413Cochise County, AZAZ126,3321,085–

414Vigo County, ININ106,5121,081–

415Humboldt County, CACA131,6471,079–

416Tooele County, UTUT87,4611,078–

417Belmont County, OHOH64,4341,075–

418Lebanon County, PAPA146,3801,069–

419Caddo Parish, LALA224,2261,067–

420Henderson County, NCNC122,3751,065–

421Mendocino County, CACA88,1221,060–

422Tioga County, PAPA40,5021,054–

423Smith County, TXTX252,5491,050–

424Johnson County, IAIA160,0441,048–

425Montgomery County, VAVA98,4341,048–

426Rock County, WIWI166,4721,047–

427Pottawattamie County, IAIA92,9961,047–

428Hancock County, OHOH75,0341,046–

429Brunswick County, NCNC174,7021,045–

430Scioto County, OHOH71,3651,043–

431Wayne County, OHOH116,7581,043–

432Hampshire County, MAMA164,0651,039–

433Chautauqua County, NYNY124,1261,038–

434Pueblo County, COCO169,2771,036–

435Cape May County, NJNJ93,3901,030–

436Washington County, ARAR271,2131,028–

437Moore County, NCNC110,6191,024–

438Clearfield County, PAPA78,1001,022–

439Calvert County, MDMD94,4841,021–

440Elkhart County, ININ208,7741,017–

441Chenango County, NYNY45,7151,011–

442Marion County, OHOH65,1151,009–

443Clarke County, GAGA129,9211,009–

444Laramie County, WYWY102,9381,007–

445Passaic County, NJNJ531,6241,001–

446Spotsylvania County, VAVA155,388999–

447Montgomery County, TNTN249,935996–

448Wayne County, NYNY91,250996–

449Washington County, MDMD157,731994–

450Schenectady County, NYNY162,581989–

451Hendricks County, ININ193,510987–

452Warren County, NYNY65,020986–

453Flathead County, MTMT115,429983–

454El Paso County, TXTX877,858980–

455Iredell County, NCNC211,798977–

456Matanuska-Susitna, AKAK118,666973–

457Adams County, PAPA107,594973–

458Spartanburg County, SCSC380,857973–

459Hays County, TXTX304,390973–

460Morrow County, OHOH36,305971–

461Bay County, FLFL204,479971–

462Benton County, OROR97,728965–

463Jackson County, MIMI159,552963–

464Hanover County, VAVA116,423963–

465Platte County, MOMO114,400959–

466Blount County, TNTN143,820959–

467Boone County, KYKY145,316954–

468Yuma County, AZAZ224,449947–

469Harrison County, MSMS217,136945–

470Sumner County, TNTN215,538943–

471Fairbanks North Star, AKAK93,972942–

472Sullivan County, TNTN163,759935–

473Madison County, ININ135,088923–

474Calhoun County, MIMI133,408920–

475Roanoke County, VAVA97,150920–

476Lee County, ALAL189,881919–

477Carson City, NVNV58,571914–

478Natrona County, WYWY80,526914–

479Yakima County, WAWA259,185911–

480Aiken County, SCSC181,515905–

481Onslow County, NCNC217,175895–

482Blue Earth County, MNMN70,634894–

483Anderson County, SCSC219,930892–

484Cabarrus County, NCNC249,725891–

485Polk County, OROR90,037888–

486Brazos County, TXTX249,088888–

487Androscoggin County, MEME116,487887–

488Baldwin County, ALAL267,761886–

489Berrien County, MIMI152,444886–

490Berkeley County, WVWV139,522886–

491Strafford County, NHNH135,043884–

492Muskingum County, OHOH87,014884–

493Broomfield County, COCO79,174883–

494Missoula County, MTMT123,513880–

495Sumter County, FLFL157,772879–

496Gregg County, TXTX126,095877–

497Jefferson County, TXTX254,321875–

498Lewis County, WAWA88,062874–

499Erie County, OHOH73,296873–

500Hudson County, NJNJ735,033871–

SHOWING 1–500 OF 2,972

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Download CSV (full list, 2,972 rows)

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

Frequently asked

Which county has the highest welsh population?

Los Angeles County, California ranks #1 with 28,387 (2010 American Community Survey).

What are the top 5 counties by welsh population?

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

How many counties are in this ranking?

2,972 counties qualify after filtering for population minimums and data availability. The ranking covers 2010 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 (2010).