RANKING · 2020 CENSUS · 500 SHOWN OF 1,804

Largest Slovak population, US counties · 2020

US counties ranked by the number of residents who are Slovak ancestry, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. Allegheny County, Pennsylvania leads at 40,190. 1,804 counties qualify in total. Pennsylvania carries 11 of the top 25 entries.

Slovak Americans: full group profile →

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SAME RANKING BYCities States Metros

RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPSLOVAK POPULATIONVS 2010

USUnited States0.2% of US population331,449,281658,740–

01Allegheny County, PAPA1,225,03540,190−21%

02Cuyahoga County, OHOH1,232,92528,994−33%

03Westmoreland County, PAPA349,32419,621−20%

04Luzerne County, PAPA332,12613,306−28%

05Mahoning County, OHOH224,70612,390−29%

06Cook County, ILIL5,194,62512,372−15%

07Summit County, OHOH538,3768,803−13%

08Cambria County, PAPA128,9688,111−26%

09Lake County, ININ504,6127,630−23%

10Washington County, PAPA210,8026,857−25%

11Northampton County, PAPA324,4116,821−3%

12Fayette County, PAPA123,0216,652−30%

13Lehigh County, PAPA384,3836,480−31%

14Lorain County, OHOH323,2196,435−41%

15Maricopa County, AZAZ4,689,5586,174−9%

16Trumbull County, OHOH198,9725,910−30%

17Los Angeles County, CACA9,694,9345,604+18%

18Medina County, OHOH185,0255,418−23%

19Lake County, OHOH232,2175,241−14%

20Butler County, PAPA200,1695,071−12%

21Franklin County, OHOH1,361,5364,918−7%

22Montgomery County, PAPA877,6434,559−26%

23DuPage County, ILIL934,2984,429−16%

24Broome County, NYNY195,7364,272−35%

25Lackawanna County, PAPA216,5024,256−41%

26Middlesex County, NJNJ883,3354,075−33%

27Beaver County, PAPA166,0323,912−33%

28Bucks County, PAPA647,8283,842−16%

29Will County, ILIL712,2533,813−34%

30Erie County, PAPA265,8323,766−30%

31Wayne County, MIMI1,769,0383,736−23%

32Chester County, PAPA557,1163,643−19%

33San Diego County, CACA3,282,2483,503+12%

34Macomb County, MIMI886,2213,464−30%

35Stark County, OHOH373,7713,448−24%

36King County, WAWA2,344,9393,446+28%

37Oakland County, MIMI1,288,3373,316−24%

38Fairfax County, VAVA1,167,8733,228−23%

39Schuylkill County, PAPA145,0853,073−41%

40Indiana County, PAPA82,8783,036−26%

41Ocean County, NJNJ673,7463,009−22%

42Orange County, CACA3,149,5072,961−5%

43Mercer County, PAPA107,8602,867−40%

44Milwaukee County, WIWI924,2162,836−16%

45Porter County, ININ176,0492,834−17%

46Hillsborough County, FLFL1,574,1152,789+37%

47Geauga County, OHOH95,6762,776+26%

48Monmouth County, NJNJ651,0352,707−5%

49Portage County, OHOH163,4042,614−32%

50Union County, NJNJ601,8632,553−17%

51Berks County, PAPA440,0722,532−39%

52Morris County, NJNJ524,2512,506−21%

53Carbon County, PAPA65,8682,456−43%

54Kings County, NYNY2,653,9632,438+34%

55Montgomery County, MDMD1,074,5822,415+10%

56Centre County, PAPA157,3932,345−16%

57Palm Beach County, FLFL1,575,7262,331+3%

58New York County, NYNY1,664,8622,321+1%

59Philadelphia County, PAPA1,574,2812,311−7%

60Hennepin County, MNMN1,284,7842,290−12%

61Bergen County, NJNJ977,0262,247−23%

62Clark County, NVNV2,407,2262,242−19%

63Broward County, FLFL2,013,3172,219−4%

64Middlesex County, MAMA1,669,9792,171+57%

65Westchester County, NYNY1,015,7432,146−16%

66Burlington County, NJNJ481,4392,119−2%

67Armstrong County, PAPA63,6982,110−31%

68Wake County, NCNC1,257,2352,106+7%

69Pinellas County, FLFL948,5632,099−30%

70Somerset County, NJNJ356,4862,083−28%

71Harris County, TXTX5,045,0262,038+16%

72Delaware County, OHOH242,0321,973+89%

73York County, PAPA473,1971,854+10%

74Lake County, ILIL719,3391,821−22%

75Queens County, NYNY2,358,1821,799−4%

76Cumberland County, PAPA277,2701,738−9%

77Anne Arundel County, MDMD603,3801,713−6%

78Dauphin County, PAPA293,3511,705−25%

79Mercer County, NJNJ399,2891,688−42%

80LaSalle County, ILIL107,7731,667−48%

81Lancaster County, PAPA563,1591,654−20%

82St. Louis County, MOMO990,9111,631+5%

83Lee County, FLFL875,6071,612−16%

84Clearfield County, PAPA78,1001,582−43%

85Sarasota County, FLFL479,9581,569+24%

86Orange County, FLFL1,528,0021,561−8%

87Waukesha County, WIWI417,2101,530−19%

88Somerset County, PAPA72,0041,522−23%

89Baltimore County, MDMD847,6501,521−3%

90Suffolk County, NYNY1,546,0901,471−24%

91Santa Clara County, CACA1,914,3911,469+3%

92Pima County, AZAZ1,074,6851,416−18%

93District of Columbia, DCDC693,6451,412+52%

94Lucas County, OHOH423,3471,394−16%

95Riverside County, CACA2,544,9161,376−6%

96Columbiana County, OHOH99,3771,355−6%

97Mecklenburg County, NCNC1,233,3831,347−34%

98Delaware County, PAPA580,9371,332−41%

99Brevard County, FLFL663,9821,304+3%

100Hamilton County, OHOH838,4181,294−22%

101Lawrence County, PAPA83,9111,293−31%

102Dane County, WIWI590,3751,250+120%

103El Paso County, COCO757,0401,201−24%

104Jefferson County, OHOH63,5971,195−34%

105Tarrant County, TXTX2,248,4661,186+18%

106Denver County, COCO740,6131,168+47%

107Collier County, FLFL417,1311,153−3%

108Frederick County, MDMD302,8831,151+38%

109Erie County, NYNY946,7411,148−28%

110Prince William County, VAVA502,9661,146+45%

111Pasco County, FLFL674,5161,127−32%

112Collin County, TXTX1,297,1791,121+109%

113Loudoun County, VAVA449,7491,119+56%

114Cobb County, GAGA793,3451,108+22%

115Montgomery County, OHOH539,5981,101−7%

116Passaic County, NJNJ531,6241,100−46%

117Monroe County, PAPA167,1791,090−15%

118Nassau County, NYNY1,398,9391,085−29%

119Wood County, OHOH134,1761,065+1%

120Gloucester County, NJNJ312,6381,065+19%

121Manatee County, FLFL468,2001,064−4%

122Washtenaw County, MIMI370,2141,063+19%

123Hunterdon County, NJNJ131,7811,059−27%

124Worcester County, MAMA888,5021,036−24%

125Lake County, FLFL456,068999+43%

126Marion County, ININ992,196969−15%

127Ashtabula County, OHOH96,713966−45%

128Kane County, ILIL525,757961−34%

129Travis County, TXTX1,389,670955+10%

130Arapahoe County, COCO673,820946+5%

131Bexar County, TXTX2,160,088944+4%

132Fulton County, GAGA1,098,791940−1%

133San Bernardino County, CACA2,224,091938+12%

134Seminole County, FLFL491,884933−28%

135New Castle County, DEDE588,026927−14%

136Cherokee County, GAGA299,273913+117%

137Volusia County, FLFL606,573903+2%

138Miami-Dade County, FLFL2,802,029901−13%

139Dallas County, TXTX2,661,397896+12%

140Onondaga County, NYNY466,584895−6%

141Greene County, PAPA33,885888−30%

142Harford County, MDMD266,446883+28%

143McHenry County, ILIL317,751878+18%

144Madison County, ILIL263,110875+22%

145Northumberland County, PAPA89,920874−24%

146Jefferson County, COCO580,451868−12%

147Kent County, MIMI675,232856+8%

148Blair County, PAPA119,541855−22%

149Ramsey County, MNMN541,623854+47%

150Howard County, MDMD339,183852−34%

151Denton County, TXTX1,069,346846+57%

152Multnomah County, OROR795,391842+8%

153Larimer County, COCO377,292832+30%

154Contra Costa County, CACA1,170,070828−6%

155Guernsey County, OHOH38,379828+8%

156Hamilton County, ININ387,036819+17%

157Sussex County, NJNJ148,063815−30%

158Horry County, SCSC427,551809+32%

159Sangamon County, ILIL194,170798+12%

160Hudson County, NJNJ735,033798−37%

161Dutchess County, NYNY300,708797−10%

162Jefferson County, PAPA43,255795+12%

163Camden County, NJNJ535,799789−33%

164Alameda County, CACA1,636,630772−40%

165Lebanon County, PAPA146,380771−53%

166Essex County, NJNJ896,379767−43%

167St. Lucie County, FLFL402,449762+63%

168Muskegon County, MIMI177,901762−1%

169Crawford County, PAPA81,792760−34%

170Ventura County, CACA830,851748+31%

171Erie County, OHOH73,296743+4%

172Arlington County, VAVA243,931741+18%

173Douglas County, COCO399,396739−22%

174Salt Lake County, UTUT1,220,916739−1%

175Monroe County, NYNY750,506733−18%

176Marion County, FLFL442,660733+17%

177San Francisco County, CACA826,079725−16%

178Kendall County, ILIL145,470723+57%

179Suffolk County, MAMA791,891720−2%

180Jackson County, MOMO732,994716+5%

181Genesee County, MIMI401,093715−47%

182Duval County, FLFL1,062,963710−22%

183Columbia County, PAPA66,193703−16%

184Butler County, OHOH400,128699−16%

185Racine County, WIWI198,919693−11%

186Virginia Beach, VAVA453,737692−11%

187Warren County, NJNJ112,953673−8%

188Jefferson County, KYKY795,222673−4%

189Wayne County, PAPA51,703658−19%

190Fulton County, NYNY52,216656−2%

191Belmont County, OHOH64,434655−39%

192Adams County, COCO554,668651+50%

193Monongalia County, WVWV107,991650−28%

194Greenville County, SCSC583,125645−10%

195Orange County, NYNY417,669640−38%

196Dakota County, MNMN457,710634−20%

197Saratoga County, NYNY241,343629−31%

198Wayne County, OHOH116,758629−23%

199Pierce County, WAWA946,288629−38%

200Ottawa County, MIMI308,459626+29%

201Knox County, TNTN511,453625+149%

202Boulder County, COCO328,560616−25%

203Gwinnett County, GAGA1,018,099598−19%

204Bernalillo County, NMNM667,601592−11%

205Allen County, ININ402,329589−2%

206Snohomish County, WAWA870,656584−16%

207Sacramento County, CACA1,618,460582−21%

208Atlantic County, NJNJ278,657582−7%

209Boone County, KYKY145,316580+289%

210East Baton Rouge Parish, LALA456,180579+399%

211Forsyth County, NCNC401,718574+16%

212Ingham County, MIMI289,709573−20%

213St. Johns County, FLFL346,328573−8%

214Carroll County, MDMD176,677572+4%

215Norfolk County, MAMA739,749564−21%

216Albany County, NYNY321,225559−28%

217Kenosha County, WIWI168,448547−39%

218Sussex County, DEDE277,140547+17%

219Brown County, WIWI275,803541+20%

220Schenectady County, NYNY162,581537−1%

221St. Clair County, MIMI160,486528+21%

222Essex County, MAMA826,653524−26%

223Baltimore, MDMD569,997520+39%

224Kalamazoo County, MIMI263,795518−11%

225LaPorte County, ININ111,294517+53%

226Putnam County, NYNY99,028511+16%

227Plymouth County, MAMA546,829507+91%

228Williamson County, TNTN272,061501+119%

229Susquehanna County, PAPA38,237499−48%

230Fairfield County, OHOH169,752498+15%

231Alexandria, VAVA160,662498+0%

232Lycoming County, PAPA112,587496+15%

233Chesterfield County, VAVA397,148495−28%

234Ulster County, NYNY183,330490−9%

235Chittenden County, VTVT169,115488+18%

236Hancock County, WVWV27,729484+9%

237Washington County, OROR611,708483−28%

238Fort Bend County, TXTX975,191480+53%

239Ottawa County, OHOH39,481479−30%

240Johnson County, KSKS636,906479−38%

241Washington County, WIWI139,238474−23%

242Anoka County, MNMN381,605473−24%

243Escambia County, FLFL333,834473+170%

244Davidson County, TNTN745,904471+10%

245Rockland County, NYNY357,397471−41%

246Livingston County, MIMI197,315471−30%

247Sonoma County, CACA486,444471+26%

248Niagara County, NYNY208,912469+2%

249Tioga County, NYNY47,453464−15%

250Cumberland County, MEME317,222463+57%

251Henrico County, VAVA342,775459+11%

252Berrien County, MIMI152,444458+163%

253Thurston County, WAWA304,261453+34%

254Warren County, OHOH257,181451−4%

255Polk County, FLFL874,790449−57%

256Brooke County, WVWV21,142445+3%

257Charlotte County, FLFL217,212445−42%

258Fayette County, KYKY329,751441+54%

259Worcester County, MDMD54,459439+260%

260Ohio County, WVWV40,496436+38%

261Spokane County, WAWA558,344435−9%

262Forsyth County, GAGA282,805434−15%

263Marin County, CACA253,694430+30%

264Hillsborough County, NHNH433,415428+2%

265Greene County, OHOH174,322420−10%

266Jefferson County, ALAL665,742420+5%

267Licking County, OHOH185,564418−17%

268Guilford County, NCNC562,234417−18%

269York County, SCSC306,887410−33%

270Sumter County, FLFL157,772410+4%

271Prince George's County, MDMD970,374408−52%

272Durham County, NCNC347,240407+20%

273Orange County, NCNC152,498403+134%

274Charleston County, SCSC436,200402+15%

275Flagler County, FLFL140,360401+20%

276Moore County, NCNC110,619400+150%

277Union County, NCNC267,674396+53%

278Anchorage, AKAK287,155394−8%

279Buncombe County, NCNC277,417389+232%

280Champaign County, ILIL209,972387+6%

281Pinal County, AZAZ539,380386−42%

282San Mateo County, CACA743,568383−20%

283Franklin County, PAPA160,652383−24%

284Monroe County, ININ143,345382+55%

285Livingston County, ILIL35,057380−29%

286Beaufort County, SCSC204,433379−11%

287Grundy County, ILIL54,052378−5%

288James City County, VAVA83,326375+75%

289Hampshire County, MAMA164,065374−2%

290Bell County, TXTX402,248374+231%

291St. Joseph County, ININ272,861371−5%

292Wyoming County, PAPA25,790371−47%

293Richmond, VAVA237,257370+3%

294Ada County, IDID546,141370+31%

295Clackamas County, OROR426,280368+7%

296Yavapai County, AZAZ252,552367+7%

297St. Louis County, MNMN200,518367−48%

298Richmond County, NYNY501,290364−34%

299Marion County, OHOH65,115364+587%

300Hampden County, MAMA464,338359−60%

301Pueblo County, COCO169,277358−32%

302Washoe County, NVNV509,386357−38%

303Androscoggin County, MEME116,487356+16%

304Montgomery County, TXTX781,194355−14%

305Madison County, ALAL433,516352+108%

306McLean County, ILIL171,419351−43%

307Elkhart County, ININ208,774351+368%

308Honolulu County, HIHI988,703350+8%

309Placer County, CACA442,081337−2%

310St. Charles County, MOMO426,499335−33%

311Albemarle County, VAVA118,356335+39%

312Kanawha County, WVWV172,381335+88%

313Spotsylvania County, VAVA155,388334+38%

314Monterey County, CACA433,729332−24%

315Hamilton County, TNTN390,833332+13%

316Union County, OHOH73,446331+121%

317Calvert County, MDMD94,484328+24%

318Williamson County, TXTX752,827328−39%

319El Dorado County, CACA192,323327+64%

320Citrus County, FLFL171,666325−19%

321Vigo County, ININ106,512325+32%

322Saginaw County, MIMI187,688322−53%

323Oneida County, NYNY226,392321+29%

324Stafford County, VAVA170,803321+4%

325Utah County, UTUT759,859319+73%

326Harrison County, MSMS217,136316+64%

327New Hanover County, NCNC245,959316−34%

328Cabarrus County, NCNC249,725313+56%

329Walworth County, WIWI106,127310+53%

330Santa Rosa County, FLFL211,115307+45%

331Adams County, PAPA107,594306−29%

332Santa Cruz County, CACA258,852305−7%

333Hancock County, OHOH75,034305+72%

334Winnebago County, ILIL283,674304+21%

335Harrison County, WVWV64,221302+12%

336Shiawassee County, MIMI67,681300−44%

337Rutherford County, TNTN386,352300+24%

338Gaston County, NCNC246,558297+58%

339Marshall County, WVWV29,159296+56%

340Berkeley County, WVWV139,522294+31%

341Alachua County, FLFL290,028290+41%

342Okaloosa County, FLFL221,810289−16%

343Hanover County, VAVA116,423288−14%

344Lane County, OROR381,584286+16%

345Van Buren County, MIMI76,071285+94%

346Richland County, OHOH124,893285+21%

347Tuscarawas County, OHOH92,373285−40%

348Macoupin County, ILIL43,748285−28%

349Venango County, PAPA49,346284−33%

350DeKalb County, GAGA774,394282−31%

351Cape May County, NJNJ93,390281+18%

352Kenton County, KYKY175,779281+101%

353Barnstable County, MAMA233,539280−23%

354Clermont County, OHOH216,977279+6%

355St. Louis, MOMO278,144276−16%

356St. Mary's County, MDMD116,692276−30%

357Athens County, OHOH63,197275−42%

358Providence County, RIRI678,179274−47%

359Clinton County, MIMI80,432273−17%

360Warren County, KYKY149,375270+980%

361Norfolk, VAVA231,013270−50%

362York County, VAVA71,374269−13%

363Chatham County, GAGA311,855269+12%

364Leon County, FLFL299,048268−34%

365Bristol County, MAMA593,640267−15%

366Pike County, PAPA62,808266−22%

367Tulsa County, OKOK698,782263−2%

368Johnson County, ININ174,262263+38%

369Boone County, ININ80,689261−9%

370McKean County, PAPA38,984259−2%

371Hernando County, FLFL221,701258−52%

372Kennebec County, MEME129,067257+9%

373Dorchester County, SCSC178,397257−18%

374Bronx County, NYNY1,406,332254+12%

375Marion County, OROR355,777254+32%

376Iredell County, NCNC211,798253+17%

377Oklahoma County, OKOK822,125253−20%

378Tippecanoe County, ININ190,456253+23%

379Warren County, PAPA37,038252−43%

380Benton County, WAWA221,722252+52%

381Monroe County, FLFL80,406251+45%

382Osceola County, FLFL481,718251+51%

383Sedgwick County, KSKS538,433251+146%

384St. Clair County, ILIL250,708250−36%

385Douglas County, NENE606,460249−32%

386Pulaski County, ARAR404,611248+11%

387Fauquier County, VAVA76,503247−4%

388Aiken County, SCSC181,515246+57%

389Douglas County, WIWI43,990245+17%

390Bradford County, PAPA59,600243+5%

391Scott County, MNMN159,017243+55%

392Polk County, IAIA516,546242−47%

393Rockingham County, NHNH324,077241−36%

394Brunswick County, NCNC174,702241−10%

395Greene County, NYNY47,238240+55%

396Martin County, FLFL166,272240−58%

397Cayuga County, NYNY74,365238+98%

398Midland County, MIMI83,754237+6%

399Herkimer County, NYNY59,219235−8%

400Alamance County, NCNC186,177234+44%

401Rensselaer County, NYNY160,510233+24%

402Washington County, MDMD157,731231−28%

403Floyd County, ININ82,153231+89%

404Richland County, SCSC434,956229+19%

405Gratiot County, MIMI41,190228+107%

406Dunn County, WIWI46,223228−7%

407Lincoln County, NCNC98,654224+833%

408Ashland County, OHOH52,523222−40%

409Marathon County, WIWI139,432222−12%

410Hendricks County, ININ193,510222−45%

411Weld County, COCO378,426219−18%

412DeKalb County, ILIL101,835217−17%

413Elk County, PAPA29,926215−16%

414Bay County, FLFL204,479215−4%

415Clark County, WAWA532,119215−30%

416Lancaster County, NENE334,049214+30%

417Lee County, ALAL189,881212+221%

418Shelby County, TNTN910,226212−62%

419Chemung County, NYNY80,415208+3%

420Tompkins County, NYNY104,047208−17%

421Deschutes County, OROR213,072207−13%

422Silver Bow County, MTMT36,118206+161%

423Jasper County, ININ33,894204−20%

424Bay County, MIMI102,123201+121%

425Clinton County, PAPA37,870201−39%

426Peoria County, ILIL178,553201−53%

427Washington County, RIRI129,795201+20%

428Jefferson County, MOMO233,132199−9%

429Cascade County, MTMT85,029199+59%

430Chesapeake, VAVA255,332198−10%

431Chaffee County, COCO20,831198+1314%

432Calhoun County, MIMI133,408197−2%

433Portage County, WIWI71,943197+194%

434Washington County, MNMN286,895196−31%

435Clarion County, PAPA36,680195+27%

436Manassas, VAVA44,332195+353%

437Huron County, OHOH58,250194−30%

438Santa Barbara County, CACA442,065193−54%

439Bennington County, VTVT36,630192+210%

440Clay County, MOMO265,032192+51%

441Sumner County, TNTN215,538191+203%

442Eaton County, MIMI109,581189−42%

443Doña Ana County, NMNM229,091189+54%

444Muskingum County, OHOH87,014189−10%

445Bayfield County, WIWI16,787189−30%

446Hall County, GAGA226,568189+49%

447San Joaquin County, CACA823,815188−53%

448Sheboygan County, WIWI118,047187−26%

449Pennington County, SDSD116,792186+138%

450Kankakee County, ILIL105,525186−30%

451Gallatin County, MTMT128,740185+23%

452Craven County, NCNC105,025183+71%

453Charlottesville, VAVA44,388182+287%

454Minnehaha County, SDSD212,691182−10%

455Scott County, IAIA175,259180+36%

456Wicomico County, MDMD106,899179+40%

457Solano County, CACA455,376176−66%

458Indian River County, FLFL172,799176−26%

459San Luis Obispo County, CACA282,367175−23%

460Coweta County, GAGA160,240175+17%

461Monroe County, MIMI156,004172−52%

462Oconee County, SCSC83,775172+177%

463Penobscot County, MEME157,967172−15%

464Outagamie County, WIWI195,894171−21%

465Comal County, TXTX209,166170+75%

466Oldham County, KYKY70,986169+40%

467Allegan County, MIMI123,188168−36%

468Chautauqua County, NYNY124,126168−34%

469Roanoke County, VAVA97,150168−5%

470Kitsap County, WAWA283,374168+29%

471Sandusky County, OHOH58,655167+46%

472Henderson County, NCNC122,375167+24%

473Ionia County, MIMI66,557166+152%

474Miami County, OHOH112,634165+43%

475Anderson County, SCSC219,930165−13%

476Warren County, VAVA42,740165+244%

477Olmsted County, MNMN166,731164−31%

478Merrimack County, NHNH158,078161+3%

479Coconino County, AZAZ144,368160−21%

480Marquette County, MIMI68,064160+220%

481Oswego County, NYNY118,569160+40%

482Onslow County, NCNC217,175160−34%

483Nassau County, FLFL106,879160−33%

484Linn County, IAIA232,028160+30%

485Humboldt County, CACA131,647159−19%

486Price County, WIWI13,988159−20%

487Allegany County, MDMD66,848159+67%

488Jackson County, ALAL54,281158–

489St. Tammany Parish, LALA279,108156−12%

490Fulton County, OHOH41,853155+9%

491Lexington County, SCSC317,588155+5%

492Warren County, NYNY65,020155+5%

493Rock County, WIWI166,472154+59%

494Huntingdon County, PAPA43,001152−45%

495Caroline County, VAVA34,413152+238%

496Cleveland County, OKOK303,973152+46%

497Isabella County, MIMI64,691151+18%

498Bedford County, PAPA47,480151−55%

499Tazewell County, ILIL130,049150+1%

500Jackson County, WVWV27,450149+473%

SHOWING 1–500 OF 1,804

Download CSV (full list, 1,804 rows)

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS

Frequently asked

Which county has the highest slovak population?

Allegheny County, Pennsylvania ranks #1 with 40,190 (2020 Decennial Census).

What are the top 5 counties by slovak population?

Allegheny County, Pennsylvania, Cuyahoga County, Ohio, Westmoreland County, Pennsylvania, Luzerne County, Pennsylvania, Mahoning County, Ohio.

How many counties are in this ranking?

1,804 counties qualify after filtering for population minimums and data availability. The ranking covers 2020 Decennial Census data.

How is slovak population measured?

Number of residents who are Slovak ancestry (Ancestry, ACS detailed tables). Source: US Census Bureau, 2020 Decennial Census.