RANKING · 2020 CENSUS · 500 SHOWN OF 1,804

Highest Slovak population share, US counties · 2020

US counties ranked by the share of all residents who are Slovak ancestry (2023 American Community Survey). A concentration measure: Slovak residents as a percentage of total population. Cambria County, Pennsylvania leads at 6.2%. 1,804 counties qualify in total. Pennsylvania carries 16 of the top 25 entries.

All statesAll rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPSLOVAK SHAREVS 2000

01Cambria County, PAPA128,9686.2%–

02Westmoreland County, PAPA349,3245.6%–

03Mahoning County, OHOH224,7065.4%–

04Fayette County, PAPA123,0215.1%–

05Luzerne County, PAPA332,1264.2%–

06Carbon County, PAPA65,8683.8%–

07Indiana County, PAPA82,8783.6%–

08Washington County, PAPA210,8023.3%–

09Allegheny County, PAPA1,225,0353.3%–

10Armstrong County, PAPA63,6983.2%–

11Medina County, OHOH185,0253.0%–

12Trumbull County, OHOH198,9723.0%–

13Geauga County, OHOH95,6763.0%–

14Butler County, PAPA200,1692.7%–

15Mercer County, PAPA107,8602.6%–

16Greene County, PAPA33,8852.4%–

17Beaver County, PAPA166,0322.4%–

18Cuyahoga County, OHOH1,232,9252.3%–

19Lake County, OHOH232,2172.3%–

20Northampton County, PAPA324,4112.2%–

21Broome County, NYNY195,7362.2%–

22Schuylkill County, PAPA145,0852.2%–

23Guernsey County, OHOH38,3792.1%–

24Lorain County, OHOH323,2192.1%–

25Somerset County, PAPA72,0042.1%–

26Lackawanna County, PAPA216,5022.0%–

27Brooke County, WVWV21,1422.0%–

28Clearfield County, PAPA78,1002.0%–

29Jefferson County, PAPA43,2551.8%–

30Jefferson County, OHOH63,5971.8%–

31Lehigh County, PAPA384,3831.8%–

32Porter County, ININ176,0491.7%–

33Hancock County, WVWV27,7291.7%–

34Summit County, OHOH538,3761.6%–

35Portage County, OHOH163,4041.6%–

36Lake County, ININ504,6121.6%–

37LaSalle County, ILIL107,7731.5%–

38Lawrence County, PAPA83,9111.5%–

39Centre County, PAPA157,3931.4%–

40Erie County, PAPA265,8321.4%–

41Wyoming County, PAPA25,7901.4%–

42Columbiana County, OHOH99,3771.3%–

43Wayne County, PAPA51,7031.3%–

44Bayfield County, WIWI16,7871.3%–

45Susquehanna County, PAPA38,2371.2%–

46Logan County, NENE6691.2%–

47Fulton County, NYNY52,2161.2%–

48Comanche County, KSKS1,6731.2%–

49Price County, WIWI13,9881.2%–

50Ottawa County, OHOH39,4811.2%–

51Harding County, NMNM6171.2%–

52Graham County, KSKS2,3711.1%–

53Columbia County, PAPA66,1931.1%–

54Livingston County, ILIL35,0571.1%–

55Iron County, WIWI6,1271.1%–

56Ohio County, WVWV40,4961.0%–

57Erie County, OHOH73,2961.0%–

58Ashtabula County, OHOH96,7131.0%–

59Chaffee County, COCO20,8311.0%–

60Morrill County, NENE4,4041.0%–

61Belmont County, OHOH64,4341.0%–

62Delaware County, OHOH242,0321.0%–

63Tioga County, NYNY47,4531.0%–

64Northumberland County, PAPA89,9201.0%–

65Marshall County, WVWV29,1591.0%–

66Clarke County, VAVA15,6091.0%–

67Throckmorton County, TXTX1,5540.9%–

68Stark County, OHOH373,7710.9%–

69Crawford County, PAPA81,7920.9%–

70Gogebic County, MIMI14,2850.8%–

71Hunterdon County, NJNJ131,7810.8%–

72Worcester County, MDMD54,4590.8%–

73Middlesex County, VAVA10,8410.8%–

74Noble County, OHOH14,2760.8%–

75Forest County, PAPA6,6140.8%–

76Wood County, OHOH134,1760.8%–

77Southeast Fairbanks Census Area, AKAK7,2700.8%–

78Grundy County, ILIL54,0520.7%–

79Newton County, ININ14,1880.7%–

80Falls Church, VAVA15,1590.7%–

81Elk County, PAPA29,9260.7%–

82Marshall County, ILIL11,4730.7%–

83Blair County, PAPA119,5410.7%–

84Chester County, PAPA557,1160.7%–

85Cumberland County, PAPA277,2700.7%–

86Monroe County, PAPA167,1790.6%–

87Hopewell, VAVA23,2610.6%–

88Warren County, PAPA37,0380.6%–

89Warren County, NJNJ112,9530.6%–

90McKean County, PAPA38,9840.6%–

91Somerset County, NJNJ356,4860.6%–

92Macoupin County, ILIL43,7480.6%–

93Deuel County, SDSD4,4080.6%–

94Montour County, PAPA17,8680.6%–

95Dauphin County, PAPA293,3510.6%–

96Bucks County, PAPA647,8280.6%–

97Monongalia County, WVWV107,9910.6%–

98Jasper County, ININ33,8940.6%–

99Berks County, PAPA440,0720.6%–

100Harrison County, OHOH14,0700.6%–

101Ashland County, WIWI16,2030.6%–

102Silver Bow County, MTMT36,1180.6%–

103White County, ININ25,1640.6%–

104Sussex County, NJNJ148,0630.6%–

105Union County, OHOH73,4460.6%–

106Glascock County, GAGA3,1410.6%–

107Kendall County, ILIL145,4700.6%–

108Fairfax, VAVA26,7720.6%–

109Douglas County, WIWI43,9900.6%–

110Plumas County, CACA18,5830.6%–

111Gratiot County, MIMI41,1900.6%–

112Marion County, OHOH65,1150.6%–

113Venango County, PAPA49,3460.6%–

114Will County, ILIL712,2530.6%–

115Montgomery County, PAPA877,6430.6%–

116Lebanon County, PAPA146,3800.5%–

117Putnam County, ILIL5,6190.5%–

118Wayne County, OHOH116,7580.5%–

119McCook County, SDSD5,9640.5%–

120Bennington County, VTVT36,6300.5%–

121Cameron County, PAPA4,2110.5%–

122Carroll County, OHOH26,4750.5%–

123Broadwater County, MTMT8,4930.5%–

124Clinton County, PAPA37,8700.5%–

125Putnam County, NYNY99,0280.5%–

126Jackson County, WVWV27,4500.5%–

127Schoolcraft County, MIMI8,1870.5%–

128Morris County, NJNJ524,2510.5%–

129Mineral County, MTMT5,1850.5%–

130Greene County, NYNY47,2380.5%–

131Jackson County, MNMN9,8570.5%–

132Dunn County, WIWI46,2230.5%–

133Clarion County, PAPA36,6800.5%–

134Ocean County, NJNJ673,7460.5%–

135Caroline County, VAVA34,4130.5%–

136Perquimans County, NCNC13,4900.5%–

137Middlesex County, NJNJ883,3350.5%–

138James City County, VAVA83,3260.5%–

139DuPage County, ILIL934,2980.5%–

140Pike County, PAPA62,8080.5%–

141Butler County, NENE8,5070.5%–

142Manassas, VAVA44,3320.5%–

143Burlington County, NJNJ481,4390.5%–

144LaPorte County, ININ111,2940.5%–

145Union County, NJNJ601,8630.5%–

146Mercer County, NJNJ399,2890.5%–

147Sussex County, VAVA10,7550.5%–

148Frederick County, MDMD302,8830.4%–

149Harrison County, WVWV64,2210.4%–

150Shiawassee County, MIMI67,6810.4%–

151Muskegon County, MIMI177,9010.4%–

152Boone County, KYKY145,3160.4%–

153Door County, WIWI30,6160.4%–

154Monmouth County, NJNJ651,0350.4%–

155Lycoming County, PAPA112,5870.4%–

156Crittenden County, KYKY8,8070.4%–

157Athens County, OHOH63,1970.4%–

158Valley County, IDID12,8310.4%–

159Ashland County, OHOH52,5230.4%–

160York County, PAPA473,1970.4%–

161Warren County, VAVA42,7400.4%–

162Sangamon County, ILIL194,1700.4%–

163Moore County, NCNC110,6190.4%–

164Hancock County, OHOH75,0340.4%–

165Bradford County, PAPA59,6000.4%–

166Jefferson County, ININ33,2790.4%–

167Macomb County, MIMI886,2210.4%–

168Coshocton County, OHOH37,1880.4%–

169York County, VAVA71,3740.4%–

170Hamilton County, ILIL7,8590.4%–

171Boone County, ININ80,6890.4%–

172Potter County, PAPA15,8970.4%–

173Montgomery County, ILIL28,0760.4%–

174Bledsoe County, TNTN15,9200.4%–

175Charlottesville, VAVA44,3880.4%–

176Wirt County, WVWV4,8790.4%–

177Herkimer County, NYNY59,2190.4%–

178Waukesha County, WIWI417,2100.4%–

179Orange County, VAVA40,0830.4%–

180Van Buren County, MIMI76,0710.4%–

181Franklin County, OHOH1,361,5360.4%–

182Saguache County, COCO6,7320.4%–

183Fulton County, OHOH41,8530.4%–

184Sarasota County, FLFL479,9580.4%–

185Catron County, NMNM3,8270.4%–

186Culberson County, TXTX2,2670.4%–

187Gloucester County, NJNJ312,6380.4%–

188Schoharie County, NYNY30,1760.4%–

189Cherokee County, GAGA299,2730.4%–

190Calvert County, MDMD94,4840.4%–

191Flagler County, FLFL140,3600.4%–

192Racine County, WIWI198,9190.4%–

193Fauquier County, VAVA76,5030.4%–

194Washington County, WIWI139,2380.3%–

195Harford County, MDMD266,4460.3%–

196Schenectady County, NYNY162,5810.3%–

197Clinton County, MIMI80,4320.3%–

198Posey County, ININ24,9880.3%–

199Kingsbury County, SDSD5,2840.3%–

200Emmet County, IAIA9,1070.3%–

201Carroll County, MDMD176,6770.3%–

202Charlevoix County, MIMI26,0360.3%–

203Huntingdon County, PAPA43,0010.3%–

204Jefferson County, FLFL16,0070.3%–

205Monroe County, FLFL80,4060.3%–

206Huron County, OHOH58,2500.3%–

207St. Clair County, MIMI160,4860.3%–

208Madison County, ILIL263,1100.3%–

209Androscoggin County, MEME116,4870.3%–

210Taylor County, WVWV16,2870.3%–

211Burnett County, WIWI17,2230.3%–

212Taylor County, WIWI20,1180.3%–

213Aleutians East, AKAK3,4790.3%–

214Lucas County, OHOH423,3470.3%–

215Kenosha County, WIWI168,4480.3%–

216Fairfield County, OHOH169,7520.3%–

217Washburn County, WIWI17,0870.3%–

218Highland County, VAVA2,3180.3%–

219Sumter County, FLFL157,7720.3%–

220Alexandria, VAVA160,6620.3%–

221Perry County, PAPA46,8060.3%–

222Bedford County, PAPA47,4800.3%–

223Arlington County, VAVA243,9310.3%–

224Sully County, SDSD1,4790.3%–

225Cayuga County, NYNY74,3650.3%–

226Tuscarawas County, OHOH92,3730.3%–

227Des Moines County, IAIA38,0770.3%–

228Jo Daviess County, ILIL21,5940.3%–

229Albemarle County, VAVA118,3560.3%–

230Jackson County, ALAL54,2810.3%–

231Coal County, OKOK5,4360.3%–

232Lancaster County, PAPA563,1590.3%–

233Collier County, FLFL417,1310.3%–

234Cape May County, NJNJ93,3900.3%–

235Vigo County, ININ106,5120.3%–

236Emmet County, MIMI33,7750.3%–

237Chenango County, NYNY45,7150.3%–

238Walworth County, WIWI106,1270.3%–

239Milwaukee County, WIWI924,2160.3%–

240Chittenden County, VTVT169,1150.3%–

241Adams County, PAPA107,5940.3%–

242Sullivan County, PAPA5,8560.3%–

243Berrien County, MIMI152,4440.3%–

244Anne Arundel County, MDMD603,3800.3%–

245Floyd County, ININ82,1530.3%–

246Caledonia County, VTVT30,4140.3%–

247Brewster County, TXTX9,4580.3%–

248Powell County, MTMT7,1570.3%–

249Union County, PAPA42,3130.3%–

250Jones County, IAIA21,2530.3%–

251Wilbarger County, TXTX12,4810.3%–

252Jerome County, IDID26,3620.3%–

253Grand County, COCO16,4960.3%–

254Washtenaw County, MIMI370,2140.3%–

255Woodford County, ILIL38,1110.3%–

256Weston County, WYWY6,8400.3%–

257Bureau County, ILIL32,5100.3%–

258McHenry County, ILIL317,7510.3%–

259Rusk County, WIWI14,1460.3%–

260Midland County, MIMI83,7540.3%–

261Sandusky County, OHOH58,6550.3%–

262Jefferson County, WAWA33,9700.3%–

263Fairfax County, VAVA1,167,8730.3%–

264Lake County, FLFL456,0680.3%–

265Marquette County, WIWI15,9270.3%–

266Portage County, WIWI71,9430.3%–

267Nantucket County, MAMA14,7580.3%–

268Loudoun County, VAVA449,7490.3%–

269Orange County, NCNC152,4980.3%–

270Ulster County, NYNY183,3300.3%–

271Saratoga County, NYNY241,3430.3%–

272Kiowa County, COCO1,4120.3%–

273Dutchess County, NYNY300,7080.3%–

274Hanover County, VAVA116,4230.3%–

275Manatee County, FLFL468,2000.3%–

276Lincoln County, NCNC98,6540.3%–

277Shenandoah County, VAVA45,8390.3%–

278Howard County, MDMD339,1830.3%–

279Oakland County, MIMI1,288,3370.3%–

280Knox County, ININ35,6520.3%–

281Ravalli County, MTMT48,5820.3%–

282Garrard County, KYKY18,2070.3%–

283Nicollet County, MNMN34,2730.3%–

284Lake County, ILIL719,3390.3%–

285Monroe County, ININ143,3450.3%–

286Grant County, NDND2,2060.3%–

287Prairie County, ARAR7,9230.3%–

288Amherst County, VAVA31,9620.3%–

289Ionia County, MIMI66,5570.3%–

290Auglaize County, OHOH45,9090.3%–

291Clay County, SDSD15,0310.3%–

292King George County, VAVA29,6460.3%–

293Oldham County, KYKY70,9860.3%–

294Lake County, OROR8,1870.3%–

295Larue County, KYKY15,1840.3%–

296Greene County, OHOH174,3220.3%–

297Berkeley County, WVWV139,5220.2%–

298Powhatan County, VAVA32,5910.2%–

299Kane County, UTUT8,5970.2%–

300Spotsylvania County, VAVA155,3880.2%–

301Itasca County, MNMN45,4040.2%–

302Starke County, ININ23,4250.2%–

303Hamilton County, ININ387,0360.2%–

304Cuming County, NENE8,8230.2%–

305Chemung County, NYNY80,4150.2%–

306Franklin County, PAPA160,6520.2%–

307Livingston County, MIMI197,3150.2%–

308Iosco County, MIMI25,2660.2%–

309Prince William County, VAVA502,9660.2%–

310Ogemaw County, MIMI21,1210.2%–

311Delaware County, NYNY44,3050.2%–

312Cascade County, MTMT85,0290.2%–

313St. Mary's County, MDMD116,6920.2%–

314Gallia County, OHOH29,0720.2%–

315Moffat County, COCO13,1220.2%–

316Whitman County, WAWA48,5120.2%–

317Copper River Census Area, AKAK2,6660.2%–

318Warren County, NYNY65,0200.2%–

319Bergen County, NJNJ977,0260.2%–

320Marquette County, MIMI68,0640.2%–

321Granite County, MTMT3,6580.2%–

322Elbert County, COCO30,5340.2%–

323Tuolumne County, CACA53,1600.2%–

324Arenac County, MIMI15,0680.2%–

325Charlotte County, FLFL217,2120.2%–

326Cook County, ILIL5,194,6250.2%–

327Sabine County, TXTX10,0120.2%–

328Licking County, OHOH185,5640.2%–

329Sussex County, DEDE277,1400.2%–

330St. Lucie County, FLFL402,4490.2%–

331Larimer County, COCO377,2920.2%–

332Crawford County, MIMI13,7220.2%–

333Vilas County, WIWI23,7610.2%–

334Fountain County, ININ17,0130.2%–

335Delaware County, PAPA580,9370.2%–

336Windsor County, VTVT57,3120.2%–

337Richland County, OHOH124,8930.2%–

338Morgan County, ILIL32,5150.2%–

339Staunton, VAVA26,8010.2%–

340Horry County, SCSC427,5510.2%–

341Otsego County, NYNY60,5890.2%–

342McMinn County, TNTN57,4040.2%–

343Hampshire County, MAMA164,0650.2%–

344Culpeper County, VAVA57,6660.2%–

345Montgomery County, MDMD1,074,5820.2%–

346Dane County, WIWI590,3750.2%–

347Emery County, UTUT10,1770.2%–

348McDowell County, WVWV16,8780.2%–

349Hancock County, ILIL16,8030.2%–

350St. Johns County, FLFL346,3280.2%–

351Allegany County, MDMD66,8480.2%–

352Washington County, NYNY59,3530.2%–

353Niagara County, NYNY208,9120.2%–

354Montgomery County, ARAR8,5790.2%–

355Jefferson County, WVWV63,1020.2%–

356Lake County, CACA67,7720.2%–

357Pine County, MNMN30,4720.2%–

358Westchester County, NYNY1,015,7430.2%–

359Summit County, COCO31,5170.2%–

360Benzie County, MIMI18,5680.2%–

361Atlantic County, NJNJ278,6570.2%–

362Citrus County, FLFL171,6660.2%–

363Muskingum County, OHOH87,0140.2%–

364Oconee County, SCSC83,7750.2%–

365Brevard County, FLFL663,9820.2%–

366Passaic County, NJNJ531,6240.2%–

367Schuyler County, NYNY16,9240.2%–

368Queen Anne's County, MDMD54,4480.2%–

369Oconto County, WIWI40,1950.2%–

370Ottawa County, MIMI308,4590.2%–

371Pinellas County, FLFL948,5630.2%–

372Griggs County, NDND2,2390.2%–

373Los Alamos County, NMNM19,4070.2%–

374Williamson County, TNTN272,0610.2%–

375Douglas County, COCO399,3960.2%–

376Isabella County, MIMI64,6910.2%–

377Pueblo County, COCO169,2770.2%–

378Marshall County, MNMN8,7980.2%–

379Stafford County, VAVA170,8030.2%–

380Crook County, WYWY7,8520.2%–

381Bourbon County, KSKS14,3190.2%–

382Calhoun County, ARAR4,6320.2%–

383Wayne County, MIMI1,769,0380.2%–

384Lee County, FLFL875,6070.2%–

385Gilpin County, COCO6,0730.2%–

386Monroe County, ILIL34,8400.2%–

387Kennebec County, MEME129,0670.2%–

388Lyon County, NVNV65,0880.2%–

389Johnson County, ILIL13,3630.2%–

390Scott County, TNTN22,6710.2%–

391Pasco County, FLFL674,5160.2%–

392DeKalb County, ILIL101,8350.2%–

393Branch County, MIMI45,9930.2%–

394Montgomery County, OHOH539,5980.2%–

395Wexford County, MIMI34,4450.2%–

396Warren County, KYKY149,3750.2%–

397Brown County, WIWI275,8030.2%–

398Colfax County, NENE10,9340.2%–

399Pike County, ILIL14,2310.2%–

400Roscommon County, MIMI23,9140.2%–

401Polk County, ARAR19,4860.2%–

402McLean County, ILIL171,4190.2%–

403Marion County, FLFL442,6600.2%–

404Tompkins County, NYNY104,0470.2%–

405District of Columbia, DCDC693,6450.2%–

406Menominee County, MIMI22,9410.2%–

407Lincoln County, OROR50,6360.2%–

408Greenbrier County, WVWV31,5780.2%–

409White County, GAGA29,8020.2%–

410Vermillion County, ININ15,4880.2%–

411Seminole County, FLFL491,8840.2%–

412Beaufort County, SCSC204,4330.2%–

413Morrow County, OHOH36,3050.2%–

414Christian County, ILIL33,4430.2%–

415Grainger County, TNTN25,7390.2%–

416Antrim County, MIMI24,6980.2%–

417Ingham County, MIMI289,7090.2%–

418Carbon County, MTMT11,4660.2%–

419Clark County, KYKY37,8880.2%–

420Carteret County, NCNC70,4690.2%–

421Kalamazoo County, MIMI263,7950.2%–

422Richland County, WIWI17,0360.2%–

423Bradford County, FLFL28,3070.2%–

424Juniata County, PAPA23,4030.2%–

425Lyon County, KYKY9,1230.2%–

426Bay County, MIMI102,1230.2%–

427Warren County, OHOH257,1810.2%–

428Onondaga County, NYNY466,5840.2%–

429Wake County, NCNC1,257,2350.2%–

430Pulaski County, ININ12,4630.2%–

431Hillsborough County, FLFL1,574,1150.2%–

432Columbia County, FLFL74,0940.2%–

433Wyandot County, OHOH21,5670.2%–

434Boulder County, COCO328,5600.2%–

435Leelanau County, MIMI22,9820.2%–

436Lewis and Clark County, MTMT75,3310.2%–

437Fayette County, IAIA19,0470.2%–

438Mecosta County, MIMI42,3200.2%–

439Noble County, ININ47,9370.2%–

440Ohio County, ININ5,9940.2%–

441Nassau County, FLFL106,8790.2%–

442Snyder County, PAPA39,6550.2%–

443Winona County, MNMN50,5230.2%–

444Kanawha County, WVWV172,3810.2%–

445Roberts County, SDSD10,2550.2%–

446Champaign County, ILIL209,9720.2%–

447St. Louis County, MNMN200,5180.2%–

448Baltimore County, MDMD847,6500.2%–

449Forsyth County, GAGA282,8050.2%–

450Parke County, ININ16,6420.2%–

451Butler County, OHOH400,1280.2%–

452Rutland County, VTVT59,6530.2%–

453Albany County, NYNY321,2250.2%–

454Nottoway County, VAVA15,7960.2%–

455Hennepin County, MNMN1,284,7840.2%–

456Madison County, VAVA14,2370.2%–

457Miner County, SDSD2,2810.2%–

458Kane County, ILIL525,7570.2%–

459Putnam County, OHOH34,3800.2%–

460Sagadahoc County, MEME37,9790.2%–

461Craven County, NCNC105,0250.2%–

462Roanoke County, VAVA97,1500.2%–

463Hardin County, OHOH30,0720.2%–

464Cowley County, KSKS34,3820.2%–

465Genesee County, MIMI401,0930.2%–

466Stone County, MOMO32,5030.2%–

467Brunswick County, NCNC174,7020.2%–

468Churchill County, NVNV25,8510.2%–

469Chippewa County, WIWI67,6140.2%–

470Livingston County, KYKY8,8630.2%–

471Toombs County, GAGA27,5450.2%–

472Mercer County, ILIL15,2290.2%–

473Wicomico County, MDMD106,8990.2%–

474Eaton County, MIMI109,5810.2%–

475Van Buren County, TNTN6,8740.2%–

476El Dorado County, CACA192,3230.2%–

477Williams County, OHOH36,5490.2%–

478Rockingham County, VAVA89,3160.2%–

479Manistee County, MIMI25,6560.2%–

480Elkhart County, ININ208,7740.2%–

481Santa Rosa County, FLFL211,1150.2%–

482Lake County, MNMN10,7460.2%–

483Henry County, ILIL48,0950.2%–

484Kankakee County, ILIL105,5250.2%–

485El Paso County, COCO757,0400.2%–

486Kenton County, KYKY175,7790.2%–

487Saginaw County, MIMI187,6880.2%–

488Johnson County, ININ174,2620.2%–

489Union County, NCNC267,6740.2%–

490Orange County, NYNY417,6690.2%–

491Monroe County, IAIA7,4060.2%–

492Iron County, MOMO9,3180.2%–

493Nicholas County, KYKY7,9490.2%–

494Mifflin County, PAPA46,1270.2%–

495Polk County, TNTN18,5920.2%–

496Oneida County, WIWI38,1310.2%–

497Garfield County, COCO63,4740.2%–

498Gallatin County, MTMT128,7400.2%–

499New Castle County, DEDE588,0260.2%–

500Marin County, CACA253,6940.2%–

SHOWING 1–500 OF 1,804

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

Frequently asked

Which county has the highest slovak share?

Cambria County, Pennsylvania ranks #1 with 6.2% (2020 American Community Survey).

What are the top 5 counties by slovak share?

Cambria County, Pennsylvania, Westmoreland County, Pennsylvania, Mahoning County, Ohio, Fayette County, Pennsylvania, Luzerne County, Pennsylvania.

How many counties are in this ranking?

1,804 counties qualify after filtering for population minimums and data availability. The ranking covers 2020 ACS 5-year data.

How is slovak share measured?

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