RANKING · 2024 ACS · 500 SHOWN OF 1,817

Largest Slovak population, US counties

US counties ranked by the number of residents who are Slovak ancestry, from the 2023 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. Allegheny County, Pennsylvania leads at 33,901. 1,817 counties qualify in total. Pennsylvania carries 10 of the top 25 entries.

All statesAll rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPSLOVAK POPULATIONVS 2000

01Allegheny County, PAPA1,225,03533,901–

02Cuyahoga County, OHOH1,232,92525,215–

03Westmoreland County, PAPA349,32414,698–

04Mahoning County, OHOH224,70611,649–

05Cook County, ILIL5,194,62511,063–

06Luzerne County, PAPA332,12610,629–

07Summit County, OHOH538,3767,282–

08Lorain County, OHOH323,2197,123–

09Lake County, ININ504,6126,497–

10Cambria County, PAPA128,9686,274–

11Lehigh County, PAPA384,3836,144–

12Maricopa County, AZAZ4,689,5585,958–

13Washington County, PAPA210,8025,610–

14Trumbull County, OHOH198,9725,585–

15Franklin County, OHOH1,361,5365,545–

16Fayette County, PAPA123,0215,219–

17Northampton County, PAPA324,4115,200–

18Butler County, PAPA200,1695,008–

19Los Angeles County, CACA9,694,9344,531–

20Lake County, OHOH232,2174,514–

21Medina County, OHOH185,0254,394–

22Montgomery County, PAPA877,6434,264–

23Will County, ILIL712,2533,952–

24DuPage County, ILIL934,2983,933–

25Broome County, NYNY195,7363,724–

26Lackawanna County, PAPA216,5023,669–

27Beaver County, PAPA166,0323,555–

28Bucks County, PAPA647,8283,189–

29Greater Bridgeport Planning Region, CTCT337,6973,099–

30Chester County, PAPA557,1163,075–

31Wayne County, MIMI1,769,0383,068–

32Kings County, NYNY2,653,9633,065–

33Ocean County, NJNJ673,7463,060–

34Middlesex County, NJNJ883,3353,045–

35Macomb County, MIMI886,2213,041–

36Oakland County, MIMI1,288,3373,035–

37Fairfax County, VAVA1,167,8733,018–

38Geauga County, OHOH95,6762,759–

39Stark County, OHOH373,7712,755–

40Hillsborough County, FLFL1,574,1152,729–

41Schuylkill County, PAPA145,0852,724–

42San Diego County, CACA3,282,2482,717–

43Mercer County, PAPA107,8602,659–

44Orange County, CACA3,149,5072,652–

45Pinellas County, FLFL948,5632,652–

46Hennepin County, MNMN1,284,7842,630–

47Erie County, PAPA265,8322,604–

48Philadelphia County, PAPA1,574,2812,588–

49Westchester County, NYNY1,015,7432,583–

50Western Connecticut Planning Region, CTCT640,4822,568–

51Milwaukee County, WIWI924,2162,540–

52Naugatuck Valley Planning Region, CTCT463,3492,418–

53Harris County, TXTX5,045,0262,412–

54King County, WAWA2,344,9392,366–

55Indiana County, PAPA82,8782,360–

56Morris County, NJNJ524,2512,304–

57South Central Connecticut Planning Region, CTCT578,7412,294–

58Wake County, NCNC1,257,2352,290–

59Palm Beach County, FLFL1,575,7262,285–

60Berks County, PAPA440,0722,257–

61Portage County, OHOH163,4042,178–

62Carbon County, PAPA65,8682,114–

63Monmouth County, NJNJ651,0352,036–

64Lee County, FLFL875,6072,029–

65Lancaster County, PAPA563,1592,012–

66Montgomery County, MDMD1,074,5822,006–

67Somerset County, NJNJ356,4861,988–

68Waukesha County, WIWI417,2101,959–

69Clark County, NVNV2,407,2261,954–

70Capitol Planning Region, CTCT994,1151,946–

71Porter County, ININ176,0491,944–

72New York County, NYNY1,664,8621,931–

73Union County, NJNJ601,8631,906–

74Middlesex County, MAMA1,669,9791,904–

75Mercer County, NJNJ399,2891,863–

76Bergen County, NJNJ977,0261,850–

77Armstrong County, PAPA63,6981,835–

78Delaware County, OHOH242,0321,736–

79Burlington County, NJNJ481,4391,716–

80Mecklenburg County, NCNC1,233,3831,716–

81Centre County, PAPA157,3931,657–

82LaSalle County, ILIL107,7731,553–

83Baltimore County, MDMD847,6501,545–

84Queens County, NYNY2,358,1821,539–

85Delaware County, PAPA580,9371,538–

86Lake County, ILIL719,3391,525–

87Cumberland County, PAPA277,2701,497–

88Clearfield County, PAPA78,1001,464–

89Sarasota County, FLFL479,9581,430–

90Dauphin County, PAPA293,3511,415–

91York County, PAPA473,1971,411–

92New Castle County, DEDE588,0261,408–

93Jefferson County, OHOH63,5971,408–

94Lucas County, OHOH423,3471,404–

95Riverside County, CACA2,544,9161,386–

96Broward County, FLFL2,013,3171,369–

97District of Columbia, DCDC693,6451,329–

98Orange County, FLFL1,528,0021,322–

99Loudoun County, VAVA449,7491,316–

100Santa Clara County, CACA1,914,3911,292–

101Anne Arundel County, MDMD603,3801,281–

102Pima County, AZAZ1,074,6851,260–

103Hamilton County, ININ387,0361,257–

104Marion County, ININ992,1961,245–

105El Paso County, COCO757,0401,212–

106St. Louis County, MOMO990,9111,202–

107Worcester County, MAMA888,5021,195–

108Suffolk County, NYNY1,546,0901,193–

109Kane County, ILIL525,7571,175–

110Somerset County, PAPA72,0041,165–

111Cobb County, GAGA793,3451,160–

112Arapahoe County, COCO673,8201,129–

113Erie County, OHOH73,2961,121–

114Brevard County, FLFL663,9821,115–

115Hamilton County, OHOH838,4181,109–

116Columbiana County, OHOH99,3771,081–

117Passaic County, NJNJ531,6241,071–

118Norfolk County, MAMA739,7491,069–

119Erie County, NYNY946,7411,066–

120Fulton County, GAGA1,098,7911,053–

121Lawrence County, PAPA83,9111,050–

122Lake County, FLFL456,0681,042–

123Hunterdon County, NJNJ131,7811,037–

124Alameda County, CACA1,636,6301,017–

125Denton County, TXTX1,069,3461,015–

126Denver County, COCO740,6131,011–

127Jefferson County, COCO580,451986–

128Monroe County, PAPA167,179986–

129Montgomery County, OHOH539,598983–

130Pasco County, FLFL674,516975–

131Seminole County, FLFL491,884973–

132Contra Costa County, CACA1,170,070965–

133Frederick County, MDMD302,883948–

134San Francisco County, CACA826,079945–

135Sacramento County, CACA1,618,460935–

136Nassau County, NYNY1,398,939931–

137Onondaga County, NYNY466,584930–

138Arlington County, VAVA243,931930–

139Dane County, WIWI590,375923–

140Dallas County, TXTX2,661,397914–

141Bexar County, TXTX2,160,088898–

142Ramsey County, MNMN541,623890–

143Manatee County, FLFL468,200888–

144Blair County, PAPA119,541883–

145Northumberland County, PAPA89,920880–

146Howard County, MDMD339,183875–

147Belmont County, OHOH64,434872–

148Genesee County, MIMI401,093867–

149Butler County, OHOH400,128859–

150Tarrant County, TXTX2,248,466854–

151Ashtabula County, OHOH96,713841–

152Collin County, TXTX1,297,179838–

153Kent County, MIMI675,232837–

154Rockland County, NYNY357,397828–

155Collier County, FLFL417,131824–

156Snohomish County, WAWA870,656819–

157Guernsey County, OHOH38,379809–

158Gloucester County, NJNJ312,638805–

159Northwest Hills Planning Region, CTCT114,690803–

160San Bernardino County, CACA2,224,091800–

161Beaufort County, SCSC204,433798–

162Dutchess County, NYNY300,708796–

163Madison County, ILIL263,110795–

164Cumberland County, MEME317,222783–

165Greene County, PAPA33,885778–

166Washtenaw County, MIMI370,214777–

167Camden County, NJNJ535,799775–

168Virginia Beach, VAVA453,737756–

169Sonoma County, CACA486,444755–

170Prince William County, VAVA502,966746–

171Bernalillo County, NMNM667,601742–

172Sumter County, FLFL157,772740–

173Hudson County, NJNJ735,033736–

174Suffolk County, MAMA791,891727–

175Volusia County, FLFL606,573725–

176Essex County, NJNJ896,379722–

177Wood County, OHOH134,176721–

178Sangamon County, ILIL194,170718–

179Jefferson County, KYKY795,222715–

180Sussex County, DEDE277,140701–

181Monongalia County, WVWV107,991692–

182Miami-Dade County, FLFL2,802,029690–

183Buncombe County, NCNC277,417682–

184Greenville County, SCSC583,125674–

185Travis County, TXTX1,389,670673–

186Multnomah County, OROR795,391668–

187Crawford County, PAPA81,792667–

188Monroe County, NYNY750,506660–

189Douglas County, COCO399,396655–

190Southeastern Connecticut Planning Region, CTCT284,015653–

191Warren County, OHOH257,181651–

192McHenry County, ILIL317,751650–

193Lebanon County, PAPA146,380650–

194Schenectady County, NYNY162,581647–

195Saratoga County, NYNY241,343645–

196Cherokee County, GAGA299,273644–

197Richmond County, NYNY501,290644–

198Sussex County, NJNJ148,063642–

199Charleston County, SCSC436,200637–

200Chittenden County, VTVT169,115632–

201Wayne County, OHOH116,758629–

202St. Clair County, MIMI160,486619–

203Duval County, FLFL1,062,963615–

204Horry County, SCSC427,551610–

205Chesterfield County, VAVA397,148610–

206Johnson County, KSKS636,906606–

207Racine County, WIWI198,919597–

208San Mateo County, CACA743,568593–

209Polk County, FLFL874,790582–

210Warren County, NJNJ112,953579–

211Jefferson County, PAPA43,255572–

212Boone County, KYKY145,316571–

213Richland County, OHOH124,893571–

214Charlotte County, FLFL217,212569–

215Anoka County, MNMN381,605569–

216Hampden County, MAMA464,338566–

217Muskegon County, MIMI177,901566–

218Forsyth County, NCNC401,718565–

219Boulder County, COCO328,560564–

220Guilford County, NCNC562,234561–

221Washington County, WIWI139,238558–

222Gwinnett County, GAGA1,018,099556–

223Alexandria, VAVA160,662556–

224Dakota County, MNMN457,710551–

225Elkhart County, ININ208,774550–

226Livingston County, MIMI197,315549–

227New Hanover County, NCNC245,959549–

228Atlantic County, NJNJ278,657548–

229Essex County, MAMA826,653530–

230Fulton County, NYNY52,216516–

231Pierce County, WAWA946,288512–

232Williamson County, TXTX752,827508–

233Baltimore, MDMD569,997507–

234Niagara County, NYNY208,912507–

235Madison County, ALAL433,516506–

236Greene County, OHOH174,322506–

237Licking County, OHOH185,564495–

238Wayne County, PAPA51,703489–

239Salt Lake County, UTUT1,220,916487–

240St. Lucie County, FLFL402,449486–

241Ottawa County, OHOH39,481485–

242Harford County, MDMD266,446479–

243Indian River County, FLFL172,799477–

244Saginaw County, MIMI187,688477–

245Albemarle County, VAVA118,356477–

246Prince George's County, MDMD970,374475–

247Kenosha County, WIWI168,448470–

248Columbia County, PAPA66,193466–

249Citrus County, FLFL171,666463–

250Montgomery County, TXTX781,194454–

251Orange County, NYNY417,669452–

252Moore County, NCNC110,619451–

253Tioga County, NYNY47,453448–

254St. Johns County, FLFL346,328447–

255Larimer County, COCO377,292443–

256Kitsap County, WAWA283,374442–

257Lower Connecticut River Valley Planning Region, CTCT177,311437–

258Durham County, NCNC347,240432–

259Hillsborough County, NHNH433,415426–

260Susquehanna County, PAPA38,237426–

261Hancock County, WVWV27,729426–

262Grundy County, ILIL54,052422–

263Ventura County, CACA830,851418–

264Albany County, NYNY321,225417–

265Comal County, TXTX209,166417–

266Tippecanoe County, ININ190,456416–

267Knox County, TNTN511,453416–

268Washington County, OROR611,708414–

269Tulsa County, OKOK698,782411–

270Pueblo County, COCO169,277408–

271Adams County, COCO554,668407–

272Merrimack County, NHNH158,078407–

273Kalamazoo County, MIMI263,795405–

274Oklahoma County, OKOK822,125403–

275Franklin County, PAPA160,652403–

276Hays County, TXTX304,390400–

277Fayette County, KYKY329,751390–

278DeKalb County, ILIL101,835389–

279Worcester County, MDMD54,459387–

280Chesapeake, VAVA255,332386–

281Spokane County, WAWA558,344386–

282St. Joseph County, ININ272,861385–

283Union County, NCNC267,674385–

284Ohio County, WVWV40,496384–

285Brunswick County, NCNC174,702383–

286Lycoming County, PAPA112,587381–

287Fort Bend County, TXTX975,191378–

288Carroll County, MDMD176,677376–

289Richmond, VAVA237,257375–

290Fairfield County, OHOH169,752373–

291Jackson County, MOMO732,994371–

292Placer County, CACA442,081368–

293Putnam County, NYNY99,028368–

294Pinal County, AZAZ539,380365–

295Cabarrus County, NCNC249,725365–

296Adams County, PAPA107,594365–

297Marion County, FLFL442,660364–

298York County, SCSC306,887361–

299Rutherford County, TNTN386,352360–

300Spotsylvania County, VAVA155,388359–

301Martin County, FLFL166,272354–

302Lancaster County, NENE334,049353–

303Clay County, FLFL239,593351–

304Weld County, COCO378,426348–

305Honolulu County, HIHI988,703348–

306Plymouth County, MAMA546,829346–

307Monterey County, CACA433,729342–

308Ada County, IDID546,141342–

309Monroe County, MIMI156,004339–

310St. Louis County, MNMN200,518339–

311St. Louis, MOMO278,144338–

312Santa Cruz County, CACA258,852335–

313Clermont County, OHOH216,977332–

314DeKalb County, GAGA774,394331–

315St. Charles County, MOMO426,499331–

316Livingston County, ILIL35,057329–

317Washington County, MDMD157,731325–

318Huron County, OHOH58,250324–

319Eaton County, MIMI109,581323–

320Bradford County, PAPA59,600322–

321Berrien County, MIMI152,444321–

322Williamson County, TNTN272,061319–

323Northeastern Connecticut Planning Region, CTCT98,096318–

324Thurston County, WAWA304,261316–

325St. Clair County, ILIL250,708315–

326Washoe County, NVNV509,386315–

327Stafford County, VAVA170,803315–

328Kendall County, ILIL145,470313–

329Brookings County, SDSD37,635311–

330Davidson County, TNTN745,904311–

331San Luis Obispo County, CACA282,367310–

332Providence County, RIRI678,179310–

333Allen County, ININ402,329309–

334Johnson County, ININ174,262307–

335Clackamas County, OROR426,280307–

336Ottawa County, MIMI308,459305–

337Rockingham County, NHNH324,077303–

338Rock County, WIWI166,472303–

339Santa Barbara County, CACA442,065300–

340Fauquier County, VAVA76,503300–

341Forsyth County, GAGA282,805299–

342Eagle County, COCO54,291296–

343Gaston County, NCNC246,558291–

344Tuscarawas County, OHOH92,373290–

345Lee County, ALAL189,881288–

346Wyoming County, PAPA25,790288–

347Hernando County, FLFL221,701284–

348Bronx County, NYNY1,406,332284–

349Orange County, NCNC152,498283–

350McLean County, ILIL171,419280–

351Doña Ana County, NMNM229,091276–

352Sandusky County, OHOH58,655276–

353Okaloosa County, FLFL221,810275–

354Flagler County, FLFL140,360274–

355Escambia County, FLFL333,834273–

356Greene County, NYNY47,238272–

357Anchorage, AKAK287,155270–

358Washington County, MNMN286,895270–

359Hall County, GAGA226,568269–

360Lane County, OROR381,584268–

361Monroe County, ININ143,345262–

362Deschutes County, OROR213,072262–

363Kootenai County, IDID191,864261–

364LaPorte County, ININ111,294260–

365Shiawassee County, MIMI67,681260–

366Douglas County, WIWI43,990260–

367Union County, OHOH73,446259–

368Warren County, KYKY149,375258–

369James City County, VAVA83,326258–

370Yavapai County, AZAZ252,552255–

371Ingham County, MIMI289,709255–

372Cape May County, NJNJ93,390255–

373Iredell County, NCNC211,798254–

374Clay County, MOMO265,032251–

375Coconino County, AZAZ144,368250–

376Linn County, IAIA232,028250–

377Jasper County, ININ33,894248–

378Washington County, RIRI129,795248–

379York County, MEME222,434247–

380Muskingum County, OHOH87,014246–

381Norfolk, VAVA231,013246–

382Knox County, OHOH64,002242–

383Boone County, ININ80,689240–

384El Dorado County, CACA192,323239–

385Winnebago County, ILIL283,674239–

386Venango County, PAPA49,346237–

387Lexington County, SCSC317,588237–

388McKean County, PAPA38,984236–

389Hamilton County, TNTN390,833236–

390Santa Rosa County, FLFL211,115233–

391Henrico County, VAVA342,775233–

392Douglas County, NENE606,460231–

393Hancock County, OHOH75,034230–

394Polk County, IAIA516,546228–

395Calvert County, MDMD94,484228–

396Osceola County, FLFL481,718227–

397York County, VAVA71,374227–

398Alachua County, FLFL290,028226–

399Marathon County, WIWI139,432224–

400Minnehaha County, SDSD212,691223–

401Ozaukee County, WIWI94,346219–

402Johnson County, IAIA160,044218–

403Wicomico County, MDMD106,899218–

404Ontario County, NYNY113,130218–

405Johnston County, NCNC256,448218–

406Nassau County, FLFL106,879216–

407Marin County, CACA253,694215–

408Clark County, OHOH135,340213–

409Orange County, VAVA40,083210–

410Kern County, CACA927,068209–

411Sedgwick County, KSKS538,433209–

412Grand Traverse County, MIMI96,729209–

413Midland County, MIMI83,754209–

414Shelby County, TNTN910,226209–

415Barnstable County, MAMA233,539206–

416Solano County, CACA455,376205–

417Utah County, UTUT759,859204–

418Mohave County, AZAZ228,102203–

419Berkeley County, SCSC274,666203–

420Mercer County, WVWV57,503203–

421Androscoggin County, MEME116,487202–

422Clinton County, MIMI80,432202–

423St. Mary's County, MDMD116,692198–

424Dunn County, WIWI46,223198–

425Bayfield County, WIWI16,787197–

426Fayette County, GAGA125,156195–

427Anderson County, SCSC219,930195–

428Jackson County, OROR221,795194–

429Clark County, WAWA532,119194–

430Newport County, RIRI83,051193–

431Franklin County, VAVA55,526193–

432Dodge County, WIWI89,097193–

433Perry County, PAPA46,806190–

434Kennebec County, MEME129,067189–

435Brooke County, WVWV21,142189–

436Athens County, OHOH63,197187–

437Bossier Parish, LALA131,867185–

438Orleans Parish, LALA362,154184–

439Silver Bow County, MTMT36,118183–

440Ulster County, NYNY183,330183–

441Bedford County, PAPA47,480183–

442Bedford County, VAVA83,059181–

443Sheboygan County, WIWI118,047180–

444Pitt County, NCNC182,936179–

445Kent County, DEDE194,786178–

446Peoria County, ILIL178,553177–

447Missoula County, MTMT123,513177–

448Cayuga County, NYNY74,365177–

449Jefferson County, WIWI86,505176–

450La Plata County, COCO56,898173–

451Coweta County, GAGA160,240173–

452St. Tammany Parish, LALA279,108173–

453Fulton County, OHOH41,853173–

454Schuyler County, NYNY16,924172–

455Newport News, VAVA183,230172–

456Hampshire County, MAMA164,065170–

457Chautauqua County, NYNY124,126170–

458Ashland County, OHOH52,523170–

459Curry County, OROR22,621170–

460Jefferson County, ALAL665,742169–

461Warren County, PAPA37,038169–

462Hendricks County, ININ193,510168–

463Jefferson County, MOMO233,132168–

464Kanawha County, WVWV172,381168–

465Onslow County, NCNC217,175167–

466Clinton County, PAPA37,870166–

467Culpeper County, VAVA57,666166–

468Whatcom County, WAWA236,392166–

469Berkshire County, MAMA128,224165–

470Hanover County, VAVA116,423165–

471Christian County, ILIL33,443163–

472Brown County, WIWI275,803163–

473Outagamie County, WIWI195,894163–

474Jackson County, MIMI159,552162–

475Georgetown County, SCSC65,912162–

476Bennington County, VTVT36,630162–

477Olmsted County, MNMN166,731161–

478Scott County, MNMN159,017161–

479Jefferson County, ININ33,279160–

480Wright County, MNMN157,559160–

481Garfield County, COCO63,474158–

482Cumberland County, NJNJ157,148158–

483Gratiot County, MIMI41,190157–

484Rowan County, NCNC155,096156–

485Broomfield County, COCO79,174155–

486Stanislaus County, CACA557,719154–

487Price County, WIWI13,988153–

488Clarion County, PAPA36,680152–

489Black Hawk County, IAIA131,532151–

490Henderson County, NCNC122,375151–

491Linn County, OROR132,843151–

492Union County, PAPA42,313151–

493Dorchester County, SCSC178,397151–

494Clarke County, VAVA15,609151–

495Cattaraugus County, NYNY75,390150–

496Leon County, FLFL299,048147–

497Champaign County, ILIL209,972147–

498McLennan County, TXTX272,020147–

499Shelby County, ALAL238,552145–

500Mobile County, ALAL411,658144–

SHOWING 1–500 OF 1,817

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

Frequently asked

Which county has the highest slovak population?

Allegheny County, Pennsylvania ranks #1 with 33,901 (2024 American Community Survey).

What are the top 5 counties by slovak population?

Allegheny County, Pennsylvania, Cuyahoga County, Ohio, Westmoreland County, Pennsylvania, Mahoning County, Ohio, Cook County, Illinois.

How many counties are in this ranking?

1,817 counties qualify after filtering for population minimums and data availability. The ranking covers 2024 ACS 5-year data.

How is slovak population measured?

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