RANKING · 2020 CENSUS · 500 SHOWN OF 2,653

Largest Swiss population, US counties · 2020

US counties ranked by the number of residents who are Swiss ancestry, from the 2023 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. Lancaster County, Pennsylvania leads at 18,712. 2,653 counties qualify in total. California carries 7 of the top 25 entries.

All statesAll rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPSWISS POPULATIONVS 2000

01Lancaster County, PAPA563,15918,712–

02Los Angeles County, CACA9,694,93414,218–

03Maricopa County, AZAZ4,689,55810,990–

04Salt Lake County, UTUT1,220,91610,934–

05Dane County, WIWI590,37510,572–

06King County, WAWA2,344,9399,825–

07San Diego County, CACA3,282,2488,312–

08Utah County, UTUT759,8598,102–

09Cook County, ILIL5,194,6257,963–

10Elkhart County, ININ208,7746,942–

11Orange County, CACA3,149,5076,914–

12Green County, WIWI37,2276,665–

13Wayne County, OHOH116,7586,656–

14Clark County, NVNV2,407,2265,824–

15Santa Clara County, CACA1,914,3915,611–

16Sacramento County, CACA1,618,4605,328–

17Multnomah County, OROR795,3915,029–

18Stark County, OHOH373,7714,675–

19Hennepin County, MNMN1,284,7844,642–

20Franklin County, OHOH1,361,5364,552–

21Harris County, TXTX5,045,0264,462–

22Davis County, UTUT381,2274,408–

23Alameda County, CACA1,636,6304,268–

24Sonoma County, CACA486,4444,106–

25Washington County, OROR611,7084,105–

26St. Louis County, MOMO990,9114,099–

27Washington County, UTUT213,6703,795–

28Holmes County, OHOH44,9703,744–

29Allen County, ININ402,3293,735–

30Allegheny County, PAPA1,225,0353,721–

31Berks County, PAPA440,0723,664–

32Waukesha County, WIWI417,2103,617–

33Pierce County, WAWA946,2883,545–

34New York County, NYNY1,664,8623,490–

35Contra Costa County, CACA1,170,0703,452–

36Clackamas County, OROR426,2803,413–

37Tuscarawas County, OHOH92,3733,330–

38Montgomery County, PAPA877,6433,287–

39Fairfax County, VAVA1,167,8733,262–

40Travis County, TXTX1,389,6703,222–

41Cuyahoga County, OHOH1,232,9253,208–

42Riverside County, CACA2,544,9163,195–

43Cache County, UTUT145,0003,163–

44Marion County, ININ992,1963,145–

45Bucks County, PAPA647,8283,112–

46Dallas County, TXTX2,661,3973,103–

47Snohomish County, WAWA870,6563,052–

48Marion County, OROR355,7773,046–

49San Bernardino County, CACA2,224,0913,004–

50Tarrant County, TXTX2,248,4662,969–

51Summit County, OHOH538,3762,964–

52Adams County, ININ36,6502,945–

53San Francisco County, CACA826,0792,909–

54York County, PAPA473,1972,902–

55Middlesex County, MAMA1,669,9792,875–

56Johnson County, KSKS636,9062,843–

57Denver County, COCO740,6132,796–

58Ada County, IDID546,1412,795–

59Wake County, NCNC1,257,2352,784–

60San Mateo County, CACA743,5682,780–

61Ramsey County, MNMN541,6232,737–

62Chester County, PAPA557,1162,720–

63Milwaukee County, WIWI924,2162,696–

64Oakland County, MIMI1,288,3372,696–

65Jefferson County, COCO580,4512,685–

66Jefferson County, KYKY795,2222,647–

67Bexar County, TXTX2,160,0882,627–

68Pima County, AZAZ1,074,6852,626–

69Lebanon County, PAPA146,3802,618–

70LaGrange County, ININ41,3052,575–

71DuPage County, ILIL934,2982,517–

72Rock County, WIWI166,4722,507–

73Hamilton County, OHOH838,4182,490–

74Pinellas County, FLFL948,5632,473–

75Kings County, NYNY2,653,9632,469–

76Franklin County, PAPA160,6522,467–

77Clark County, WAWA532,1192,396–

78Lane County, OROR381,5842,378–

79Montgomery County, MDMD1,074,5822,327–

80Spokane County, WAWA558,3442,304–

81Palm Beach County, FLFL1,575,7262,276–

82Rockingham County, VAVA89,3162,268–

83Santa Barbara County, CACA442,0652,264–

84Kent County, MIMI675,2322,258–

85El Paso County, COCO757,0402,252–

86Suffolk County, NYNY1,546,0902,144–

87Larimer County, COCO377,2922,142–

88Philadelphia County, PAPA1,574,2812,114–

89San Luis Obispo County, CACA282,3672,062–

90Lee County, FLFL875,6072,054–

91Arapahoe County, COCO673,8202,033–

92Marin County, CACA253,6942,013–

93Stanislaus County, CACA557,7191,978–

94Ventura County, CACA830,8511,976–

95Sarasota County, FLFL479,9581,965–

96Orange County, FLFL1,528,0021,942–

97Broward County, FLFL2,013,3171,933–

98Morris County, NJNJ524,2511,901–

99Bergen County, NJNJ977,0261,877–

100Jackson County, MOMO732,9941,868–

101San Joaquin County, CACA823,8151,858–

102Hillsborough County, FLFL1,574,1151,833–

103Placer County, CACA442,0811,829–

104Cumberland County, PAPA277,2701,812–

105Davidson County, TNTN745,9041,769–

106Washoe County, NVNV509,3861,756–

107District of Columbia, DCDC693,6451,750–

108Duval County, FLFL1,062,9631,720–

109Douglas County, NENE606,4601,716–

110Delaware County, OHOH242,0321,705–

111Medina County, OHOH185,0251,704–

112Lake County, ILIL719,3391,698–

113Mecklenburg County, NCNC1,233,3831,682–

114Monterey County, CACA433,7291,675–

115Weber County, UTUT278,1741,660–

116Lucas County, OHOH423,3471,639–

117Oklahoma County, OKOK822,1251,632–

118Fulton County, GAGA1,098,7911,629–

119Cobb County, GAGA793,3451,628–

120Dauphin County, PAPA293,3511,609–

121Boulder County, COCO328,5601,607–

122Collin County, TXTX1,297,1791,601–

123Denton County, TXTX1,069,3461,591–

124Miami-Dade County, FLFL2,802,0291,587–

125Dakota County, MNMN457,7101,580–

126Fresno County, CACA1,035,4561,549–

127Allen County, OHOH100,8811,545–

128Williamson County, TXTX752,8271,499–

129Erie County, NYNY946,7411,477–

130Hamilton County, ININ387,0361,474–

131Montgomery County, OHOH539,5981,460–

132Douglas County, COCO399,3961,454–

133Madison County, ILIL263,1101,454–

134Polk County, IAIA516,5461,446–

135Westchester County, NYNY1,015,7431,442–

136Kane County, ILIL525,7571,436–

137Baltimore County, MDMD847,6501,435–

138Onondaga County, NYNY466,5841,426–

139Anchorage, AKAK287,1551,424–

140Sedgwick County, KSKS538,4331,416–

141Geauga County, OHOH95,6761,399–

142Wayne County, MIMI1,769,0381,390–

143Winnebago County, ILIL283,6741,386–

144Kitsap County, WAWA283,3741,382–

145Johnson County, IAIA160,0441,382–

146St. Joseph County, ININ272,8611,375–

147Bonneville County, IDID135,7711,373–

148Knox County, TNTN511,4531,371–

149Anne Arundel County, MDMD603,3801,363–

150Nassau County, NYNY1,398,9391,353–

151Peoria County, ILIL178,5531,351–

152DeKalb County, GAGA774,3941,344–

153Wells County, ININ28,8831,327–

154Monmouth County, NJNJ651,0351,327–

155Pinal County, AZAZ539,3801,323–

156Santa Cruz County, CACA258,8521,316–

157St. Charles County, MOMO426,4991,311–

158Thurston County, WAWA304,2611,281–

159Washington County, MNMN286,8951,275–

160Montgomery County, TXTX781,1941,270–

161Delaware County, PAPA580,9371,263–

162Clark County, WIWI35,0521,257–

163Monroe County, NYNY750,5061,250–

164Washtenaw County, MIMI370,2141,247–

165Butte County, CACA209,2111,243–

166Lancaster County, NENE334,0491,243–

167Harrisonburg, VAVA50,8391,240–

168Lake County, FLFL456,0681,231–

169Suffolk County, MAMA791,8911,230–

170Norfolk County, MAMA739,7491,221–

171Deschutes County, OROR213,0721,207–

172Yates County, NYNY24,5471,193–

173Tazewell County, ILIL130,0491,191–

174Kern County, CACA927,0681,190–

175Lafayette County, WIWI17,4781,189–

176Oneida County, NYNY226,3921,178–

177McHenry County, ILIL317,7511,165–

178Brevard County, FLFL663,9821,160–

179Boone County, MOMO191,7461,150–

180Bernalillo County, NMNM667,6011,148–

181Volusia County, FLFL606,5731,144–

182Queens County, NYNY2,358,1821,137–

183Richland County, OHOH124,8931,131–

184Loudoun County, VAVA449,7491,127–

185St. Joseph County, MIMI60,9681,127–

186Honolulu County, HIHI988,7031,100–

187Tulsa County, OKOK698,7821,098–

188Winnebago County, WIWI174,2181,092–

189Polk County, FLFL874,7901,087–

190Ocean County, NJNJ673,7461,083–

191Marathon County, WIWI139,4321,082–

192Dodge County, WIWI89,0971,073–

193Adams County, COCO554,6681,072–

194Kosciusko County, ININ80,8921,064–

195Wood County, OHOH134,1761,057–

196Collier County, FLFL417,1311,051–

197Pasco County, FLFL674,5161,040–

198Erie County, PAPA265,8321,040–

199Centre County, PAPA157,3931,033–

200Seminole County, FLFL491,8841,032–

201Benton County, OROR97,7281,031–

202Greenville County, SCSC583,1251,030–

203Sauk County, WIWI66,6521,028–

204Washington County, WIWI139,2381,018–

205Linn County, IAIA232,0281,017–

206Stephenson County, ILIL43,2201,004–

207Frederick County, MDMD302,883992–

208New Castle County, DEDE588,026983–

209Tippecanoe County, ININ190,456983–

210Harvey County, KSKS33,580981–

211El Dorado County, CACA192,323977–

212Woodford County, ILIL38,111970–

213Lehigh County, PAPA384,383970–

214Forsyth County, NCNC401,718959–

215Worcester County, MAMA888,502956–

216Anoka County, MNMN381,605952–

217St. Louis, MOMO278,144949–

218Linn County, OROR132,843944–

219Dutchess County, NYNY300,708935–

220Arlington County, VAVA243,931934–

221Skagit County, WAWA132,975934–

222Essex County, MAMA826,653924–

223Gwinnett County, GAGA1,018,099918–

224Mahoning County, OHOH224,706916–

225Yavapai County, AZAZ252,552914–

226Fulton County, OHOH41,853913–

227Northampton County, PAPA324,411911–

228Manatee County, FLFL468,200902–

229Morgan County, MOMO22,418901–

230Humboldt County, CACA131,647898–

231Yolo County, CACA224,410898–

232Butler County, OHOH400,128891–

233Ingham County, MIMI289,709885–

234Daviess County, ININ34,209883–

235Whatcom County, WAWA236,392880–

236Will County, ILIL712,253872–

237Bannock County, IDID91,591871–

238Hamilton County, TNTN390,833870–

239Columbia County, WIWI58,132867–

240Washington County, MDMD157,731859–

241Olmsted County, MNMN166,731853–

242La Crosse County, WIWI121,339852–

243Gallatin County, MTMT128,740850–

244Jefferson County, WIWI86,505849–

245Pulaski County, ARAR404,611845–

246Eau Claire County, WIWI109,033844–

247Macomb County, MIMI886,221841–

248Virginia Beach, VAVA453,737840–

249Middlesex County, NJNJ883,335839–

250McLean County, ILIL171,419836–

251Blair County, PAPA119,541834–

252Crawford County, PAPA81,792834–

253Rockland County, NYNY357,397833–

254Dubuque County, IAIA99,381831–

255Shasta County, CACA181,648830–

256Black Hawk County, IAIA131,532827–

257Fairfield County, OHOH169,752824–

258Solano County, CACA455,376819–

259Warren County, OHOH257,181819–

260Jackson County, OROR221,795818–

261Lexington County, SCSC317,588818–

262Steuben County, NYNY91,855817–

263Somerset County, NJNJ356,486816–

264Minnehaha County, SDSD212,691814–

265Greene County, OHOH174,322814–

266Chesterfield County, VAVA397,148812–

267Hancock County, OHOH75,034812–

268Iowa County, WIWI23,951810–

269Racine County, WIWI198,919807–

270Howard County, MDMD339,183807–

271Weld County, COCO378,426802–

272Jefferson County, IDID35,297802–

273Sussex County, DEDE277,140799–

274Trumbull County, OHOH198,972799–

275Shelby County, TNTN910,226796–

276Portage County, OHOH163,404796–

277Washington County, ARAR271,213786–

278Walworth County, WIWI106,127783–

279Lorain County, OHOH323,219775–

280Richland County, SCSC434,956773–

281Chippewa County, WIWI67,614766–

282Marion County, FLFL442,660765–

283Columbiana County, OHOH99,377764–

284Brown County, WIWI275,803758–

285Passaic County, NJNJ531,624757–

286Somerset County, PAPA72,004744–

287Clay County, MOMO265,032743–

288Butler County, PAPA200,169741–

289Rockingham County, NHNH324,077740–

290Richmond, VAVA237,257734–

291Montgomery County, NYNY50,046732–

292Fayette County, KYKY329,751726–

293Buncombe County, NCNC277,417724–

294Napa County, CACA132,949723–

295Mifflin County, PAPA46,127722–

296Ashland County, OHOH52,523722–

297Lake County, ININ504,612721–

298Benton County, WAWA221,722720–

299Mesa County, COCO162,845720–

300Charleston County, SCSC436,200720–

301Licking County, OHOH185,564719–

302St. Lawrence County, NYNY105,488719–

303Union County, NCNC267,674718–

304Guilford County, NCNC562,234714–

305Orange County, NYNY417,669709–

306Perry County, PAPA46,806709–

307Reno County, KSKS61,539709–

308Branch County, MIMI45,993706–

309Outagamie County, WIWI195,894704–

310Benton County, ARAR332,554704–

311Cumberland County, MEME317,222698–

312Livingston County, MIMI197,315694–

313Jefferson County, ALAL665,742693–

314Josephine County, OROR87,867692–

315Snyder County, PAPA39,655684–

316Yamhill County, OROR110,024681–

317Schuylkill County, PAPA145,085679–

318Shawnee County, KSKS178,607678–

319Alachua County, FLFL290,028676–

320St. Johns County, FLFL346,328669–

321Baltimore, MDMD569,997669–

322Dunn County, WIWI46,223664–

323Bell County, TXTX402,248658–

324Grant County, WIWI52,446656–

325Webster County, MOMO43,054654–

326Dallas County, IAIA118,457654–

327Fort Bend County, TXTX975,191653–

328Lycoming County, PAPA112,587653–

329Missoula County, MTMT123,513651–

330Flathead County, MTMT115,429649–

331Canyon County, IDID275,123647–

332Sangamon County, ILIL194,170646–

333St. Croix County, WIWI98,276644–

334Berrien County, MIMI152,444641–

335Twin Falls County, IDID97,539639–

336Lewis County, WAWA88,062636–

337Lackawanna County, PAPA216,502626–

338Madison County, IDID55,172624–

339Kenton County, KYKY175,779624–

340Greene County, MOMO309,286622–

341Jefferson County, MOMO233,132621–

342Lake County, OHOH232,217619–

343Lubbock County, TXTX328,906613–

344Scott County, IAIA175,259609–

345Charlotte County, FLFL217,212605–

346Warren County, NJNJ112,953605–

347Santa Fe County, NMNM156,907604–

348Mohave County, AZAZ228,102603–

349Tooele County, UTUT87,461602–

350Kalamazoo County, MIMI263,795602–

351Iron County, UTUT67,141601–

352Burlington County, NJNJ481,439598–

353Union County, PAPA42,313598–

354Champaign County, ILIL209,972597–

355Madison County, OHOH46,985596–

356Tillamook County, OROR27,384593–

357Albany County, NYNY321,225592–

358Cherokee County, GAGA299,273591–

359Williamson County, TNTN272,061590–

360Prince William County, VAVA502,966589–

361Indian River County, FLFL172,799580–

362Box Elder County, UTUT65,320576–

363Orange County, NCNC152,498575–

364Putnam County, OHOH34,380575–

365York County, SCSC306,887570–

366Westmoreland County, PAPA349,324567–

367Galveston County, TXTX372,207567–

368Saratoga County, NYNY241,343566–

369Hendricks County, ININ193,510562–

370Union County, NJNJ601,863559–

371Wood County, WIWI74,060559–

372Moniteau County, MOMO15,428557–

373Genesee County, MIMI401,093556–

374Christian County, MOMO96,725555–

375Pueblo County, COCO169,277554–

376Sussex County, NJNJ148,063553–

377Summit County, UTUT43,141551–

378Sumner County, TNTN215,538550–

379Rutherford County, TNTN386,352546–

380Sumter County, FLFL157,772545–

381Clarion County, PAPA36,680545–

382Fond du Lac County, WIWI104,669544–

383Vanderburgh County, ININ181,995541–

384Douglas County, KSKS120,920541–

385Walla Walla County, WAWA62,361538–

386Alexandria, VAVA160,662534–

387Buchanan County, MOMO83,540530–

388Gloucester County, NJNJ312,638530–

389Wayne County, NYNY91,250528–

390Augusta County, VAVA78,940522–

391Clark County, OHOH135,340522–

392Merced County, CACA297,260519–

393Grays Harbor County, WAWA78,144519–

394Barnstable County, MAMA233,539519–

395Columbia County, OROR54,091518–

396DeKalb County, ILIL101,835517–

397Washington County, IAIA22,667516–

398Hunterdon County, NJNJ131,781515–

399Marshall County, ININ46,599515–

400Jasper County, MOMO127,428513–

401Hillsborough County, NHNH433,415512–

402Montgomery County, TNTN249,935510–

403Leon County, FLFL299,048508–

404Muskingum County, OHOH87,014508–

405Plymouth County, MAMA546,829503–

406Clermont County, OHOH216,977502–

407St. Clair County, ILIL250,708499–

408Forsyth County, GAGA282,805498–

409Monroe County, ININ143,345498–

410St. Mary's County, MDMD116,692495–

411Garfield County, COCO63,474492–

412Horry County, SCSC427,551492–

413Brazoria County, TXTX419,080491–

414Kendall County, TXTX53,289491–

415Teton County, IDID13,254489–

416Tompkins County, NYNY104,047488–

417Buffalo County, WIWI13,318486–

418Livingston County, ILIL35,057486–

419Beaufort County, SCSC204,433486–

420Escambia County, FLFL333,834485–

421Adams County, PAPA107,594485–

422Essex County, NJNJ896,379484–

423Yellowstone County, MTMT172,692483–

424Sandoval County, NMNM159,565483–

425Sarpy County, NENE208,303482–

426Porter County, ININ176,049481–

427Columbia County, GAGA169,189479–

428Boone County, ININ80,689479–

429Martin County, FLFL166,272476–

430Ottawa County, MIMI308,459475–

431Mercer County, NJNJ399,289468–

432Wayne County, ININ66,169468–

433Henrico County, VAVA342,775465–

434Broomfield County, COCO79,174465–

435Wasatch County, UTUT38,514463–

436Pennington County, SDSD116,792463–

437Lincoln County, WYWY21,180462–

438Story County, IAIA101,291462–

439Orleans Parish, LALA362,154460–

440Imperial County, CACA181,411458–

441La Plata County, COCO56,898457–

442Coshocton County, OHOH37,188457–

443Maui County, HIHI160,592456–

444Morton County, NDND34,601454–

445Parker County, TXTX184,767453–

446Auglaize County, OHOH45,909453–

447New Hanover County, NCNC245,959451–

448Nevada County, CACA101,911449–

449Matanuska-Susitna, AKAK118,666448–

450Ontario County, NYNY113,130448–

451San Benito County, CACA70,082447–

452Miami County, OHOH112,634445–

453Hawaii County, HIHI210,043444–

454Chittenden County, VTVT169,115442–

455Chesapeake, VAVA255,332442–

456Scott County, MNMN159,017441–

457Cayuga County, NYNY74,365441–

458Tulare County, CACA485,146439–

459Cleveland County, OKOK303,973439–

460Sherburne County, MNMN104,194438–

461Luzerne County, PAPA332,126436–

462Providence County, RIRI678,179436–

463Grand Traverse County, MIMI96,729434–

464Clallam County, WAWA78,202433–

465Moultrie County, ILIL14,371433–

466Camden County, NJNJ535,799429–

467Johnson County, ININ174,262427–

468Hudson County, NJNJ735,033426–

469Carroll County, MDMD176,677426–

470Chautauqua County, NYNY124,126420–

471Riley County, KSKS72,598420–

472Mendocino County, CACA88,122418–

473East Baton Rouge Parish, LALA456,180418–

474Washington County, PAPA210,802418–

475Herkimer County, NYNY59,219417–

476Warren County, PAPA37,038417–

477Hampshire County, MAMA164,065416–

478York County, MEME222,434415–

479Onslow County, NCNC217,175414–

480Mercer County, PAPA107,860414–

481Laramie County, WYWY102,938412–

482Cass County, NDND201,794412–

483Grant County, WAWA105,727411–

484Sanilac County, MIMI40,083411–

485Sheboygan County, WIWI118,047410–

486Hancock County, ININ90,969410–

487Citrus County, FLFL171,666409–

488St. Louis County, MNMN200,518406–

489Mason County, WAWA71,165406–

490Carver County, MNMN114,379404–

491Ashtabula County, OHOH96,713403–

492Harrison County, MSMS217,136402–

493Fayette County, IAIA19,047395–

494Madison County, ALAL433,516395–

495Paulding County, OHOH18,727395–

496Indiana County, PAPA82,878395–

497Howard County, IAIA9,415394–

498Portage County, WIWI71,943393–

499Union County, OHOH73,446393–

500Floyd County, ININ82,153392–

SHOWING 1–500 OF 2,653

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Download CSV (full list, 2,653 rows)

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

Frequently asked

Which county has the highest swiss population?

Lancaster County, Pennsylvania ranks #1 with 18,712 (2020 American Community Survey).

What are the top 5 counties by swiss population?

Lancaster County, Pennsylvania, Los Angeles County, California, Maricopa County, Arizona, Salt Lake County, Utah, Dane County, Wisconsin.

How many counties are in this ranking?

2,653 counties qualify after filtering for population minimums and data availability. The ranking covers 2020 ACS 5-year data.

How is swiss population measured?

Number of residents who are Swiss ancestry (Ancestry, ACS detailed tables). Source: US Census Bureau, American Community Survey 5-year estimates (2020).