RANKING · 2010 CENSUS · 500 SHOWN OF 2,687

Largest Swiss population, US counties · 2010

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 18,762. 2,687 counties qualify in total. California carries 5 of the top 25 entries.

All statesAll rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPSWISS POPULATIONVS 2000

01Lancaster County, PAPA563,15918,762–

02Los Angeles County, CACA9,694,93415,922–

03Maricopa County, AZAZ4,689,55811,386–

04Salt Lake County, UTUT1,220,91610,749–

05King County, WAWA2,344,93910,648–

06Dane County, WIWI590,37510,460–

07San Diego County, CACA3,282,2489,616–

08Cook County, ILIL5,194,6258,432–

09Orange County, CACA3,149,5078,044–

10Green County, WIWI37,2277,687–

11Utah County, UTUT759,8597,610–

12Wayne County, OHOH116,7587,223–

13Stark County, OHOH373,7716,978–

14Santa Clara County, CACA1,914,3916,916–

15Elkhart County, ININ208,7746,590–

16St. Louis County, MOMO990,9115,731–

17Hennepin County, MNMN1,284,7845,711–

18Multnomah County, OROR795,3915,668–

19Harris County, TXTX5,045,0265,277–

20Clark County, NVNV2,407,2265,168–

21Franklin County, OHOH1,361,5365,061–

22New York County, NYNY1,664,8624,962–

23Sacramento County, CACA1,618,4604,949–

24Holmes County, OHOH44,9704,838–

25Adams County, ININ36,6504,826–

26Pierce County, WAWA946,2884,816–

27Washington County, OROR611,7084,547–

28Allegheny County, PAPA1,225,0354,366–

29Sonoma County, CACA486,4444,332–

30Alameda County, CACA1,636,6304,296–

31Davis County, UTUT381,2274,289–

32Fairfax County, VAVA1,167,8734,218–

33LaGrange County, ININ41,3054,215–

34Contra Costa County, CACA1,170,0704,083–

35Riverside County, CACA2,544,9164,031–

36Tuscarawas County, OHOH92,3733,926–

37Snohomish County, WAWA870,6563,761–

38Milwaukee County, WIWI924,2163,719–

39Clackamas County, OROR426,2803,715–

40Suffolk County, NYNY1,546,0903,707–

41Johnson County, KSKS636,9063,676–

42Allen County, ININ402,3293,644–

43Montgomery County, PAPA877,6433,643–

44Jefferson County, KYKY795,2223,616–

45Cuyahoga County, OHOH1,232,9253,615–

46Pima County, AZAZ1,074,6853,555–

47Waukesha County, WIWI417,2103,473–

48Middlesex County, MAMA1,669,9793,338–

49DuPage County, ILIL934,2983,278–

50Dallas County, TXTX2,661,3973,275–

51Marion County, OROR355,7773,266–

52San Francisco County, CACA826,0793,264–

53Tarrant County, TXTX2,248,4663,249–

54San Bernardino County, CACA2,224,0913,193–

55Rock County, WIWI166,4723,159–

56Jefferson County, COCO580,4513,130–

57Summit County, OHOH538,3763,119–

58Bergen County, NJNJ977,0263,097–

59Pinellas County, FLFL948,5633,082–

60Monterey County, CACA433,7293,051–

61Oakland County, MIMI1,288,3373,049–

62Berks County, PAPA440,0723,038–

63Denver County, COCO740,6133,029–

64San Mateo County, CACA743,5682,962–

65Montgomery County, MDMD1,074,5822,927–

66Clark County, WAWA532,1192,830–

67Stanislaus County, CACA557,7192,805–

68Chester County, PAPA557,1162,750–

69York County, PAPA473,1972,750–

70San Luis Obispo County, CACA282,3672,740–

71San Joaquin County, CACA823,8152,701–

72Hamilton County, OHOH838,4182,633–

73Lebanon County, PAPA146,3802,622–

74Arapahoe County, COCO673,8202,613–

75Marion County, ININ992,1962,601–

76Ada County, IDID546,1412,590–

77Broward County, FLFL2,013,3172,586–

78Marin County, CACA253,6942,541–

79Spokane County, WAWA558,3442,524–

80Palm Beach County, FLFL1,575,7262,518–

81Sarasota County, FLFL479,9582,509–

82Cache County, UTUT145,0002,485–

83Santa Barbara County, CACA442,0652,451–

84Ventura County, CACA830,8512,430–

85Travis County, TXTX1,389,6702,377–

86Ramsey County, MNMN541,6232,355–

87Lucas County, OHOH423,3472,347–

88Larimer County, COCO377,2922,337–

89Lake County, ILIL719,3392,317–

90Nassau County, NYNY1,398,9392,316–

91El Paso County, COCO757,0402,314–

92Washington County, UTUT213,6702,268–

93Wake County, NCNC1,257,2352,258–

94Mecklenburg County, NCNC1,233,3832,217–

95Fresno County, CACA1,035,4562,214–

96Washoe County, NVNV509,3862,183–

97Bucks County, PAPA647,8282,128–

98Cumberland County, PAPA277,2702,112–

99Kent County, MIMI675,2322,074–

100Orange County, FLFL1,528,0022,052–

101Placer County, CACA442,0812,050–

102Westchester County, NYNY1,015,7432,042–

103Monroe County, NYNY750,5062,029–

104Franklin County, PAPA160,6522,005–

105Lee County, FLFL875,6071,974–

106Morris County, NJNJ524,2511,971–

107Montgomery County, OHOH539,5981,953–

108Oklahoma County, OKOK822,1251,925–

109Kane County, ILIL525,7571,914–

110Lane County, OROR381,5841,903–

111Hillsborough County, FLFL1,574,1151,900–

112Boulder County, COCO328,5601,893–

113Philadelphia County, PAPA1,574,2811,886–

114Weber County, UTUT278,1741,874–

115Wayne County, MIMI1,769,0381,867–

116Winnebago County, ILIL283,6741,829–

117Washington County, MNMN286,8951,825–

118Douglas County, COCO399,3961,809–

119Jackson County, MOMO732,9941,795–

120St. Charles County, MOMO426,4991,758–

121Madison County, ILIL263,1101,750–

122District of Columbia, DCDC693,6451,732–

123Onondaga County, NYNY466,5841,724–

124Thurston County, WAWA304,2611,723–

125Allen County, OHOH100,8811,717–

126Adams County, COCO554,6681,716–

127Miami-Dade County, FLFL2,802,0291,709–

128Sedgwick County, KSKS538,4331,709–

129Denton County, TXTX1,069,3461,704–

130Bexar County, TXTX2,160,0881,702–

131Medina County, OHOH185,0251,698–

132Douglas County, NENE606,4601,678–

133Santa Cruz County, CACA258,8521,663–

134Richland County, OHOH124,8931,639–

135Knox County, TNTN511,4531,626–

136Butte County, CACA209,2111,596–

137Oneida County, NYNY226,3921,595–

138Peoria County, ILIL178,5531,594–

139El Dorado County, CACA192,3231,591–

140Lafayette County, WIWI17,4781,575–

141Honolulu County, HIHI988,7031,570–

142Dakota County, MNMN457,7101,560–

143Bernalillo County, NMNM667,6011,552–

144Norfolk County, MAMA739,7491,550–

145Cobb County, GAGA793,3451,511–

146Hamilton County, ININ387,0361,505–

147St. Joseph County, ININ272,8611,502–

148Rockingham County, VAVA89,3161,498–

149Manatee County, FLFL468,2001,494–

150Ocean County, NJNJ673,7461,492–

151Geauga County, OHOH95,6761,492–

152Kings County, NYNY2,653,9631,491–

153Collin County, TXTX1,297,1791,479–

154Dauphin County, PAPA293,3511,473–

155Will County, ILIL712,2531,472–

156Linn County, IAIA232,0281,461–

157Collier County, FLFL417,1311,454–

158Kern County, CACA927,0681,450–

159Columbiana County, OHOH99,3771,442–

160Suffolk County, MAMA791,8911,441–

161Anne Arundel County, MDMD603,3801,430–

162Wells County, ININ28,8831,426–

163Tulsa County, OKOK698,7821,413–

164Monmouth County, NJNJ651,0351,409–

165Lehigh County, PAPA384,3831,395–

166Solano County, CACA455,3761,393–

167Kosciusko County, ININ80,8921,393–

168Stephenson County, ILIL43,2201,393–

169Duval County, FLFL1,062,9631,384–

170Washtenaw County, MIMI370,2141,377–

171Volusia County, FLFL606,5731,373–

172Williamson County, TXTX752,8271,355–

173Essex County, MAMA826,6531,354–

174Baltimore County, MDMD847,6501,344–

175Erie County, NYNY946,7411,342–

176Tazewell County, ILIL130,0491,336–

177Clark County, WIWI35,0521,323–

178Anchorage, AKAK287,1551,313–

179Kitsap County, WAWA283,3741,306–

180Northampton County, PAPA324,4111,304–

181Davidson County, TNTN745,9041,294–

182Delaware County, PAPA580,9371,291–

183Polk County, IAIA516,5461,290–

184New Castle County, DEDE588,0261,282–

185Humboldt County, CACA131,6471,275–

186Washington County, WIWI139,2381,274–

187Queens County, NYNY2,358,1821,260–

188Brevard County, FLFL663,9821,239–

189Dutchess County, NYNY300,7081,231–

190Yavapai County, AZAZ252,5521,230–

191Marathon County, WIWI139,4321,226–

192Deschutes County, OROR213,0721,225–

193Woodford County, ILIL38,1111,223–

194Linn County, OROR132,8431,212–

195Wood County, WIWI74,0601,202–

196Fulton County, GAGA1,098,7911,201–

197Lorain County, OHOH323,2191,198–

198McLean County, ILIL171,4191,197–

199Polk County, FLFL874,7901,183–

200Passaic County, NJNJ531,6241,179–

201Iowa County, WIWI23,9511,176–

202Jefferson County, MOMO233,1321,135–

203Anoka County, MNMN381,6051,134–

204Lancaster County, NENE334,0491,134–

205Winnebago County, WIWI174,2181,131–

206Yolo County, CACA224,4101,128–

207La Crosse County, WIWI121,3391,112–

208Pasco County, FLFL674,5161,111–

209Mohave County, AZAZ228,1021,109–

210Macomb County, MIMI886,2211,106–

211Whatcom County, WAWA236,3921,099–

212Virginia Beach, VAVA453,7371,090–

213Essex County, NJNJ896,3791,087–

214Tippecanoe County, ININ190,4561,084–

215Portage County, OHOH163,4041,081–

216Union County, PAPA42,3131,071–

217Sauk County, WIWI66,6521,070–

218Bonneville County, IDID135,7711,067–

219Mahoning County, OHOH224,7061,061–

220Burlington County, NJNJ481,4391,059–

221Butler County, OHOH400,1281,054–

222Weld County, COCO378,4261,042–

223Shelby County, TNTN910,2261,038–

224Ashland County, OHOH52,5231,027–

225Lake County, FLFL456,0681,017–

226Centre County, PAPA157,3931,011–

227Nevada County, CACA101,9111,006–

228Knox County, OHOH64,0021,005–

229Benton County, OROR97,7281,003–

230Harrisonburg, VAVA50,839999–

231Pinal County, AZAZ539,380994–

232Hamilton County, TNTN390,833986–

233Worcester County, MAMA888,502979–

234Wood County, OHOH134,176976–

235Greenville County, SCSC583,125973–

236Racine County, WIWI198,919973–

237Boone County, MOMO191,746961–

238Clay County, MOMO265,032961–

239Hancock County, OHOH75,034956–

240Dodge County, WIWI89,097954–

241Bannock County, IDID91,591952–

242Washington County, MDMD157,731950–

243Champaign County, ILIL209,972947–

244Eau Claire County, WIWI109,033931–

245Shasta County, CACA181,648929–

246Gwinnett County, GAGA1,018,099928–

247McHenry County, ILIL317,751919–

248Olmsted County, MNMN166,731916–

249Buncombe County, NCNC277,417915–

250Trumbull County, OHOH198,972907–

251Napa County, CACA132,949906–

252Plymouth County, MAMA546,829905–

253Scott County, IAIA175,259900–

254Tillamook County, OROR27,384900–

255Orange County, NYNY417,669900–

256Grant County, WIWI52,446899–

257Columbia County, WIWI58,132897–

258Montgomery County, TXTX781,194895–

259Canyon County, IDID275,123885–

260Frederick County, MDMD302,883878–

261Seminole County, FLFL491,884876–

262Dubuque County, IAIA99,381875–

263DeKalb County, GAGA774,394873–

264Sussex County, NJNJ148,063869–

265Yamhill County, OROR110,024867–

266Westmoreland County, PAPA349,324863–

267Flathead County, MTMT115,429863–

268Wayne County, NYNY91,250863–

269St. Clair County, ILIL250,708853–

270Madison County, IDID55,172850–

271Johnson County, IAIA160,044849–

272Jackson County, OROR221,795849–

273Somerset County, PAPA72,004843–

274Prince William County, VAVA502,966843–

275Snyder County, PAPA39,655835–

276Polk County, OROR90,037832–

277Schuylkill County, PAPA145,085831–

278Cumberland County, MEME317,222828–

279Middlesex County, NJNJ883,335824–

280Walworth County, WIWI106,127824–

281Spartanburg County, SCSC380,857821–

282Hillsborough County, NHNH433,415815–

283Douglas County, KSKS120,920814–

284Ingham County, MIMI289,709806–

285Greene County, MOMO309,286806–

286Loudoun County, VAVA449,749805–

287Charleston County, SCSC436,200799–

288Williamson County, TNTN272,061794–

289Fulton County, OHOH41,853793–

290Arlington County, VAVA243,931787–

291Skagit County, WAWA132,975786–

292Crawford County, PAPA81,792778–

293Erie County, PAPA265,832778–

294Buchanan County, MOMO83,540778–

295Jefferson County, WIWI86,505772–

296Merced County, CACA297,260771–

297Missoula County, MTMT123,513769–

298Somerset County, NJNJ356,486765–

299Brown County, WIWI275,803763–

300Shawnee County, KSKS178,607762–

301St. Louis, MOMO278,144758–

302Kootenai County, IDID191,864757–

303Lake County, ININ504,612755–

304St. Johns County, FLFL346,328750–

305Wasatch County, UTUT38,514746–

306Cherokee County, GAGA299,273745–

307Sarpy County, NENE208,303735–

308Berkshire County, MAMA128,224731–

309Howard County, MDMD339,183724–

310Jefferson County, ALAL665,742723–

311Bristol County, MAMA593,640722–

312Delaware County, OHOH242,032722–

313Orange County, NCNC152,498721–

314Harvey County, KSKS33,580720–

315Yates County, NYNY24,547719–

316Henrico County, VAVA342,775718–

317Livingston County, ILIL35,057711–

318Fayette County, KYKY329,751708–

319St. Joseph County, MIMI60,968703–

320Licking County, OHOH185,564700–

321Lewis County, WAWA88,062699–

322Union County, NJNJ601,863697–

323Mifflin County, PAPA46,127692–

324Tulare County, CACA485,146691–

325Gallatin County, MTMT128,740691–

326Marshall County, ININ46,599689–

327Yellowstone County, MTMT172,692688–

328Outagamie County, WIWI195,894685–

329Logan County, OHOH46,302683–

330Prince George's County, MDMD970,374682–

331Kalamazoo County, MIMI263,795679–

332Lexington County, SCSC317,588679–

333Chittenden County, VTVT169,115679–

334Ozaukee County, WIWI94,346678–

335Fairfield County, OHOH169,752675–

336Iron County, UTUT67,141669–

337Warren County, OHOH257,181666–

338Santa Fe County, NMNM156,907666–

339Monroe County, ININ143,345663–

340DeKalb County, ININ44,535662–

341Baltimore, MDMD569,997660–

342Fort Bend County, TXTX975,191660–

343Albany County, NYNY321,225646–

344Guilford County, NCNC562,234644–

345Chesterfield County, VAVA397,148638–

346Lincoln County, WYWY21,180636–

347Washington County, PAPA210,802633–

348Lewis County, NYNY26,479630–

349Pulaski County, ARAR404,611625–

350Butler County, PAPA200,169625–

351Maui County, HIHI160,592624–

352Putnam County, OHOH34,380624–

353Marion County, FLFL442,660623–

354Richland County, SCSC434,956622–

355Story County, IAIA101,291619–

356Jefferson Parish, LALA431,398614–

357Juniata County, PAPA23,403612–

358Sussex County, DEDE277,140605–

359Island County, WAWA85,657601–

360Charlotte County, FLFL217,212597–

361Genesee County, MIMI401,093596–

362Douglas County, NVNV50,111596–

363Greene County, OHOH174,322594–

364Livingston County, MIMI197,315593–

365York County, SCSC306,887590–

366St. Croix County, WIWI98,276590–

367Sangamon County, ILIL194,170589–

368Alachua County, FLFL290,028588–

369Faulkner County, ARAR133,979584–

370Johnson County, ININ174,262584–

371Benton County, WAWA221,722583–

372Barron County, WIWI46,484583–

373Josephine County, OROR87,867580–

374Horry County, SCSC427,551579–

375Camden County, NJNJ535,799579–

376Box Elder County, UTUT65,320578–

377Mercer County, NJNJ399,289575–

378Hunterdon County, NJNJ131,781574–

379Benton County, ARAR332,554572–

380Reno County, KSKS61,539572–

381Alexandria, VAVA160,662572–

382Blair County, PAPA119,541564–

383Ottawa County, MIMI308,459561–

384Hampshire County, MAMA164,065560–

385Clermont County, OHOH216,977560–

386Brazoria County, TXTX419,080560–

387Tompkins County, NYNY104,047559–

388Luzerne County, PAPA332,126558–

389Kenosha County, WIWI168,448558–

390Clallam County, WAWA78,202557–

391Tooele County, UTUT87,461556–

392Mendocino County, CACA88,122554–

393Hawaii County, HIHI210,043553–

394Fond du Lac County, WIWI104,669551–

395Morgan County, MOMO22,418550–

396Lincoln County, WIWI28,403548–

397Madison County, OHOH46,985547–

398Leavenworth County, KSKS84,590546–

399Monroe County, MIMI156,004546–

400Buffalo County, WIWI13,318546–

401Fairbanks North Star, AKAK93,972541–

402Chautauqua County, NYNY124,126536–

403Moniteau County, MOMO15,428535–

404Washington County, IAIA22,667534–

405Lake County, OHOH232,217534–

406Platte County, NENE35,649533–

407Bay County, MIMI102,123531–

408Elk County, PAPA29,926523–

409Broome County, NYNY195,736522–

410Rock Island County, ILIL141,869517–

411Schenectady County, NYNY162,581517–

412Pueblo County, COCO169,277515–

413Whitley County, ININ35,046514–

414Yuma County, AZAZ224,449513–

415Forsyth County, NCNC401,718512–

416Miami County, OHOH112,634510–

417Rockingham County, NHNH324,077499–

418Richmond, VAVA237,257498–

419Lackawanna County, PAPA216,502496–

420Delaware County, ININ113,106495–

421Webster County, MOMO43,054492–

422Martin County, FLFL166,272490–

423Barnstable County, MAMA233,539490–

424Chippewa County, WIWI67,614490–

425Bingham County, IDID51,153489–

426La Plata County, COCO56,898488–

427Pacific County, WAWA24,357488–

428Ashtabula County, OHOH96,713487–

429Hudson County, NJNJ735,033486–

430Black Hawk County, IAIA131,532484–

431Mercer County, PAPA107,860480–

432Citrus County, FLFL171,666479–

433Laurel County, KYKY63,746479–

434Sutter County, CACA98,787473–

435Washington County, ARAR271,213472–

436Northumberland County, PAPA89,920471–

437Monroe County, OHOH12,994470–

438El Paso County, TXTX877,858468–

439Rensselaer County, NYNY160,510467–

440Kittitas County, WAWA48,803465–

441Seneca County, OHOH54,522464–

442Cowlitz County, WAWA114,885464–

443Jackson County, MIMI159,552463–

444Bonner County, IDID54,420462–

445Leon County, FLFL299,048461–

446Pottawattamie County, IAIA92,996457–

447Goodhue County, MNMN48,195456–

448Vanderburgh County, ININ181,995455–

449Lincoln County, OROR50,636455–

450Garrett County, MDMD28,370454–

451Warren County, PAPA37,038454–

452St. Louis County, MNMN200,518453–

453Kendall County, ILIL145,470453–

454Bear Lake County, IDID6,727452–

455Floyd County, ININ82,153452–

456Indian River County, FLFL172,799451–

457Coconino County, AZAZ144,368451–

458Dallas County, IAIA118,457451–

459Fayette County, IAIA19,047451–

460Bedford County, PAPA47,480451–

461Carroll County, MDMD176,677450–

462Union County, OHOH73,446450–

463Baldwin County, ALAL267,761448–

464Uintah County, UTUT38,278447–

465Davidson County, NCNC180,182446–

466Porter County, ININ176,049445–

467Carroll County, OHOH26,475445–

468Bureau County, ILIL32,510444–

469Cascade County, MTMT85,029443–

470Saratoga County, NYNY241,343442–

471Saginaw County, MIMI187,688440–

472Vernon County, WIWI31,443440–

473Beaufort County, SCSC204,433437–

474Sheboygan County, WIWI118,047437–

475Columbia County, OROR54,091436–

476Sanpete County, UTUT31,453435–

477Randolph County, WVWV26,882435–

478Monroe County, PAPA167,179433–

479Kenton County, KYKY175,779432–

480Walla Walla County, WAWA62,361432–

481St. Lucie County, FLFL402,449430–

482Blount County, TNTN143,820430–

483Sullivan County, NYNY80,586430–

484Cayuga County, NYNY74,365429–

485Yakima County, WAWA259,185429–

486Durham County, NCNC347,240427–

487Nemaha County, KSKS10,054425–

488Coshocton County, OHOH37,188424–

489Atlantic County, NJNJ278,657423–

490Mesa County, COCO162,845420–

491Lenawee County, MIMI97,779420–

492Bartholomew County, ININ85,729420–

493Matanuska-Susitna, AKAK118,666419–

494Cambria County, PAPA128,968418–

495Lake County, CACA67,772417–

496Adams County, PAPA107,594417–

497Shelby County, ALAL238,552416–

498Lyon County, IAIA12,354414–

499McLennan County, TXTX272,020413–

500Providence County, RIRI678,179410–

SHOWING 1–500 OF 2,687

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Download CSV (full list, 2,687 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 18,762 (2010 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, King County, Washington.

How many counties are in this ranking?

2,687 counties qualify after filtering for population minimums and data availability. The ranking covers 2010 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 (2010).