RANKING · 2020 CENSUS · 500 SHOWN OF 2,650

Highest Czech population share, US counties · 2020

US counties ranked by the share of all residents who are Czech ancestry (2023 American Community Survey). A concentration measure: Czech residents as a percentage of total population. Butler County, Nebraska leads at 27.7%. 2,650 counties qualify in total. Nebraska carries 10 of the top 25 entries.

All statesAll rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPCZECH SHAREVS 2000

01Butler County, NENE8,50727.7%–

02Lavaca County, TXTX20,65125.2%–

03Saunders County, NENE23,70216.0%–

04Bon Homme County, SDSD7,24415.9%–

05Colfax County, NENE10,93415.1%–

06Fayette County, TXTX25,45914.5%–

07Saline County, NENE14,99613.1%–

08Fillmore County, NENE5,45811.7%–

09Howard County, IAIA9,41511.7%–

10Wharton County, TXTX42,06011.6%–

11Rawlins County, KSKS2,43111.0%–

12Tripp County, SDSD5,70810.7%–

13Colorado County, TXTX21,43910.7%–

14Republic County, KSKS4,64010.4%–

15Kewaunee County, WIWI20,75810.2%–

16Boyd County, NENE1,6749.9%–

17Valley County, NENE4,0949.8%–

18Gregory County, SDSD4,0379.5%–

19Charles Mix County, SDSD9,3039.5%–

20Tama County, IAIA16,7969.5%–

21Le Sueur County, MNMN29,4539.2%–

22Jackson County, TXTX15,3939.0%–

23Seward County, NENE18,0328.9%–

24Sherman County, NENE2,9248.9%–

25Knox County, NENE8,3358.5%–

26Platte County, NENE35,6498.3%–

27Pawnee County, NENE2,5107.7%–

28Brule County, SDSD5,2787.3%–

29Winneshiek County, IAIA19,7337.3%–

30Langlade County, WIWI19,5347.2%–

31Stanton County, NENE5,7447.2%–

32Austin County, TXTX33,6257.0%–

33Walsh County, NDND10,1796.9%–

34Pierce County, NENE7,3786.8%–

35Burleson County, TXTX20,5496.6%–

36Dodge County, NENE38,0576.6%–

37Manitowoc County, WIWI81,7106.4%–

38Holt County, NENE10,0676.3%–

39Steele County, MNMN37,4646.2%–

40Calhoun County, TXTX19,5996.2%–

41Yankton County, SDSD23,6356.1%–

42Rice County, MNMN69,9395.9%–

43Ellsworth County, KSKS6,2575.9%–

44Lyman County, SDSD3,6945.6%–

45DeWitt County, TXTX20,3095.5%–

46Howard County, NENE6,5385.5%–

47Polk County, NENE5,2705.5%–

48Cass County, NENE27,6575.4%–

49Boone County, NENE5,3555.3%–

50Washington County, KSKS5,5335.2%–

51Linn County, IAIA232,0285.1%–

52Rush County, KSKS2,8455.1%–

53Benton County, IAIA26,0045.0%–

54Wayne County, NENE10,0205.0%–

55Price County, WIWI13,9885.0%–

56Lancaster County, NENE334,0494.9%–

57Nuckolls County, NENE4,1004.9%–

58Billings County, NDND1,0714.7%–

59Crawford County, WIWI15,9104.7%–

60Merrick County, NENE7,9054.7%–

61Buffalo County, NENE51,1724.7%–

62Thayer County, NENE4,8424.6%–

63Cuming County, NENE8,8234.6%–

64Stark County, NDND34,0134.4%–

65Webster County, NENE3,3364.4%–

66Wheeler County, NENE7894.4%–

67Jefferson County, NENE7,0704.3%–

68Goliad County, TXTX7,2084.3%–

69Clay County, NENE6,1704.3%–

70Prairie County, MTMT1,1124.2%–

71Wilkin County, MNMN6,2884.2%–

72Adams County, NDND2,2754.2%–

73Hutchinson County, SDSD7,4134.1%–

74Matagorda County, TXTX36,4634.1%–

75Loup County, NENE5704.1%–

76Gage County, NENE21,7114.1%–

77Baylor County, TXTX3,4724.0%–

78Victoria County, TXTX92,6563.9%–

79Dunn County, NDND4,0583.9%–

80Renville County, MNMN14,3563.9%–

81Deuel County, NENE1,8623.9%–

82Falls County, TXTX17,8693.9%–

83York County, NENE14,5643.9%–

84Mills County, TXTX4,5803.8%–

85Mahnomen County, MNMN5,1533.8%–

86Garfield County, NENE1,7103.7%–

87Kent County, TXTX6743.7%–

88Bowman County, NDND2,7623.7%–

89Fergus County, MTMT11,8253.6%–

90Richland County, NDND16,7313.6%–

91Johnson County, IAIA160,0443.6%–

92Madison County, NENE36,1063.5%–

93Hancock County, IAIA10,5283.5%–

94Antelope County, NENE6,3523.5%–

95Douglas County, NENE606,4603.4%–

96Hill County, TXTX39,5033.4%–

97Decatur County, KSKS2,7163.4%–

98Jackson County, MNMN9,8573.4%–

99Sarpy County, NENE208,3033.4%–

100Pope County, MNMN11,4203.4%–

101McLeod County, MNMN36,6313.3%–

102Cedar County, NENE8,3733.3%–

103Greeley County, NENE2,1543.3%–

104Sioux County, NENE1,1883.2%–

105Hamilton County, NENE9,6783.2%–

106Chickasaw County, IAIA11,6633.2%–

107Nelson County, NDND2,9633.2%–

108Lee County, TXTX18,7293.2%–

109Copper River Census Area, AKAK2,6663.1%–

110Carter County, MTMT1,3833.1%–

111Hughes County, SDSD17,5703.1%–

112Richland County, WIWI17,0363.1%–

113Iowa County, IAIA16,5043.1%–

114Keya Paha County, NENE7923.1%–

115Gonzales County, TXTX20,1593.1%–

116Stanley County, SDSD3,0183.1%–

117Douglas County, MNMN40,1203.1%–

118Hand County, SDSD3,1213.0%–

119Johnson County, NENE5,2183.0%–

120Kingfisher County, OKOK15,7953.0%–

121Marshall County, MNMN8,7983.0%–

122Milam County, TXTX26,2582.9%–

123Rusk County, WIWI14,1462.9%–

124Foard County, TXTX1,0442.9%–

125Sargent County, NDND3,7112.9%–

126Vernon County, WIWI31,4432.9%–

127Hooker County, NENE6862.8%–

128Dixon County, NENE5,6022.8%–

129Keith County, NENE8,1002.8%–

130Hayes County, NENE8212.8%–

131Dawes County, NENE7,8582.8%–

132Iowa County, WIWI23,9512.8%–

133Hall County, NENE63,6332.8%–

134Huerfano County, COCO7,0112.8%–

135Hitchcock County, NENE2,4672.8%–

136Aurora County, SDSD2,8012.8%–

137Arthur County, NENE3962.7%–

138Scott County, MNMN159,0172.7%–

139Sheridan County, NENE4,8092.7%–

140Oldham County, TXTX1,7832.7%–

141Cherry County, NENE5,5612.7%–

142Barron County, WIWI46,4842.7%–

143Hettinger County, NDND2,4922.7%–

144Brown County, NENE2,8262.7%–

145Cheyenne County, NENE9,5282.7%–

146Harper County, KSKS5,3702.7%–

147Lincoln County, KSKS2,8612.6%–

148Washington County, NENE21,3022.6%–

149Shiawassee County, MIMI67,6812.6%–

150Phelps County, NENE8,9942.6%–

151Sully County, SDSD1,4792.6%–

152Blaine County, NENE4582.6%–

153Hyde County, SDSD1,1912.6%–

154Pierce County, WIWI43,5192.5%–

155Jerauld County, SDSD1,6542.5%–

156Ashland County, WIWI16,2032.5%–

157Ringgold County, IAIA4,6422.5%–

158Sawyer County, WIWI18,8462.5%–

159Burt County, NENE6,6782.5%–

160Redwood County, MNMN15,2652.5%–

161McLennan County, TXTX272,0202.5%–

162Lawrence County, SDSD29,4592.5%–

163La Crosse County, WIWI121,3392.5%–

164Washington County, TXTX38,2882.5%–

165Traill County, NDND7,9202.5%–

166Pennington County, SDSD116,7922.4%–

167Pine County, MNMN30,4722.4%–

168Jones County, IAIA21,2532.4%–

169Rock County, NENE1,2592.4%–

170Freeborn County, MNMN30,4402.4%–

171Potter County, SDSD2,3772.3%–

172Karnes County, TXTX15,0182.3%–

173Custer County, COCO5,5902.3%–

174Adams County, NENE31,0712.3%–

175Marathon County, WIWI139,4322.3%–

176Poweshiek County, IAIA18,3682.3%–

177Chippewa County, WIWI67,6142.3%–

178Allamakee County, IAIA14,2382.3%–

179McCook County, SDSD5,9642.3%–

180Cedar County, IAIA18,3592.3%–

181Pocahontas County, IAIA6,8192.3%–

182Grant County, WIWI52,4462.2%–

183Douglas County, SDSD2,8882.2%–

184Oconto County, WIWI40,1952.2%–

185Clearwater County, MNMN8,6472.2%–

186Ramsey County, NDND11,5302.2%–

187Grand Forks County, NDND74,5012.2%–

188Kanabec County, MNMN16,6282.2%–

189Roberts County, TXTX8672.2%–

190Chisago County, MNMN59,1422.2%–

191Storey County, NVNV4,2602.2%–

192Sheridan County, KSKS2,4272.1%–

193Trego County, KSKS2,7402.1%–

194Dodge County, MNMN21,3762.1%–

195Delaware County, IAIA17,6742.1%–

196Kingsbury County, SDSD5,2842.1%–

197Taylor County, WIWI20,1182.1%–

198Frontier County, NENE2,6552.1%–

199Brown County, WIWI275,8032.1%–

200Mower County, MNMN40,9712.1%–

201Otoe County, NENE16,5312.1%–

202Marshall County, KSKS9,8522.1%–

203Haakon County, SDSD1,8022.1%–

204Adams County, WIWI21,7522.0%–

205Juneau County, WIWI26,6492.0%–

206Glasscock County, TXTX1,1282.0%–

207Bayfield County, WIWI16,7872.0%–

208Forest County, WIWI9,5742.0%–

209Faulk County, SDSD2,1782.0%–

210Oneida County, WIWI38,1312.0%–

211Door County, WIWI30,6162.0%–

212Red Willow County, NENE10,3072.0%–

213Marshall County, SDSD4,4262.0%–

214Gove County, KSKS2,6312.0%–

215Butte County, SDSD10,8562.0%–

216Floyd County, IAIA14,9012.0%–

217Kimball County, NENE3,3912.0%–

218Menominee County, MIMI22,9412.0%–

219Runnels County, TXTX9,6932.0%–

220Refugio County, TXTX6,6572.0%–

221Ottawa County, KSKS5,7441.9%–

222Roseau County, MNMN15,2461.9%–

223Lincoln County, NENE33,3031.9%–

224Carver County, MNMN114,3791.9%–

225Live Oak County, TXTX11,9291.9%–

226Polk County, MNMN30,5451.9%–

227Todd County, MNMN26,0601.9%–

228Isanti County, MNMN44,3861.9%–

229Waller County, TXTX69,8581.9%–

230Concho County, TXTX3,6071.9%–

231Marshall County, IAIA39,8901.9%–

232Mills County, IAIA14,7931.9%–

233Davison County, SDSD20,0691.9%–

234Racine County, WIWI198,9191.9%–

235Waseca County, MNMN18,6881.9%–

236Harlan County, NENE3,0001.9%–

237DuPage County, ILIL934,2981.9%–

238Chase County, NENE3,7181.9%–

239Wilson County, TXTX56,1391.9%–

240Cerro Gordo County, IAIA42,3721.8%–

241Houston County, MNMN18,4001.8%–

242Brookings County, SDSD37,6351.8%–

243Yellow Medicine County, MNMN9,4771.8%–

244Custer County, NENE10,5001.8%–

245Nance County, NENE3,2901.8%–

246Brazos County, TXTX249,0881.8%–

247Summit County, COCO31,5171.8%–

248Minnehaha County, SDSD212,6911.8%–

249Geary County, KSKS36,3381.8%–

250Chouteau County, MTMT5,8651.8%–

251Dakota County, MNMN457,7101.8%–

252Jackson County, WIWI20,9991.8%–

253Vilas County, WIWI23,7611.8%–

254Brown County, MNMN25,5171.8%–

255Adams County, IAIA3,6171.8%–

256Thurston County, NENE6,7521.8%–

257Iron County, MIMI11,7571.8%–

258Washburn County, WIWI17,0871.8%–

259St. Croix County, WIWI98,2761.7%–

260Ellis County, TXTX240,8671.7%–

261Turner County, SDSD9,3141.7%–

262Sedgwick County, COCO2,2471.7%–

263Custer County, SDSD9,4311.7%–

264Wood County, WIWI74,0601.7%–

265Cass County, IAIA12,9601.7%–

266Jones County, SDSD9131.7%–

267Knox County, TXTX3,1921.7%–

268Shawano County, WIWI41,5601.7%–

269Nemaha County, KSKS10,0541.7%–

270Rains County, TXTX13,5421.7%–

271Wheatland County, MTMT2,1001.7%–

272Big Stone County, MNMN5,0541.7%–

273Medina County, OHOH185,0251.7%–

274Cheyenne County, COCO1,7131.7%–

275Franklin County, NENE2,7951.6%–

276Leelanau County, MIMI22,9821.6%–

277Sherman County, KSKS5,7631.6%–

278Walworth County, SDSD5,2171.6%–

279Fayette County, IAIA19,0471.6%–

280Dawson County, NENE24,4521.6%–

281Florence County, WIWI4,7481.6%–

282Dundy County, NENE1,5681.6%–

283Stutsman County, NDND21,4141.6%–

284Bell County, TXTX402,2481.6%–

285Cloud County, KSKS8,8331.6%–

286Broadwater County, MTMT8,4931.6%–

287Day County, SDSD5,4841.6%–

288Marinette County, WIWI42,5741.6%–

289Marion County, KSKS11,6341.5%–

290Thomas County, NENE6391.5%–

291Webster County, IAIA36,8381.5%–

292Portage County, WIWI71,9431.5%–

293Black Hawk County, IAIA131,5321.5%–

294Geauga County, OHOH95,6761.5%–

295Pottawattamie County, IAIA92,9961.5%–

296Brazoria County, TXTX419,0801.5%–

297Becker County, MNMN35,4971.5%–

298Fillmore County, MNMN21,5401.5%–

299Fall River County, SDSD7,4671.5%–

300Perkins County, SDSD2,8531.5%–

301Williamson County, TXTX752,8271.5%–

302Dakota County, NENE21,6871.5%–

303Rooks County, KSKS4,6461.5%–

304Hamilton County, NYNY5,0061.5%–

305Washington County, MNMN286,8951.5%–

306Sanborn County, SDSD2,3881.5%–

307Golden Valley County, MTMT8441.5%–

308Sheridan County, NDND1,2961.5%–

309Pend Oreille County, WAWA14,4571.5%–

310Iron County, WIWI6,1271.5%–

311Clay County, SDSD15,0311.5%–

312Kittson County, MNMN4,0311.5%–

313Carbon County, MTMT11,4661.4%–

314Somervell County, TXTX10,2611.4%–

315Bremer County, IAIA25,2961.4%–

316Burnett County, WIWI17,2231.4%–

317Pennington County, MNMN13,6861.4%–

318Grant County, OKOK4,0671.4%–

319Wright County, MNMN157,5591.4%–

320Winona County, MNMN50,5231.4%–

321Barnes County, NDND10,5731.4%–

322Hartley County, TXTX4,9041.4%–

323Will County, ILIL712,2531.4%–

324Grant County, MNMN6,0851.4%–

325Polk County, WIWI45,8031.4%–

326Norman County, MNMN6,3361.4%–

327Osborne County, KSKS3,2851.4%–

328Dickinson County, KSKS18,6371.4%–

329Kearney County, NENE6,7901.4%–

330Slope County, NDND6281.4%–

331San Juan County, COCO8131.4%–

332Deer Lodge County, MTMT9,7091.4%–

333Keokuk County, IAIA9,7971.4%–

334Olmsted County, MNMN166,7311.4%–

335Kandiyohi County, MNMN44,7201.4%–

336Dewey County, OKOK4,2071.4%–

337Deuel County, SDSD4,4081.4%–

338Garfield County, OKOK61,7791.4%–

339Anoka County, MNMN381,6051.4%–

340Meeker County, MNMN23,6031.4%–

341Worth County, IAIA7,3381.3%–

342Edwards County, KSKS2,6401.3%–

343Hamlin County, SDSD6,9001.3%–

344Walworth County, WIWI106,1271.3%–

345Dickey County, NDND4,8951.3%–

346Grimes County, TXTX34,2521.3%–

347Comal County, TXTX209,1661.3%–

348Dane County, WIWI590,3751.3%–

349McHenry County, ILIL317,7511.3%–

350St. Louis County, MNMN200,5181.3%–

351Blue Earth County, MNMN70,6341.3%–

352Erath County, TXTX43,9111.3%–

353Sherburne County, MNMN104,1941.3%–

354Madison County, TXTX14,2261.3%–

355Bottineau County, NDND6,2841.3%–

356Yuma County, COCO9,8961.3%–

357Calumet County, WIWI53,9821.3%–

358Garden County, NENE1,8041.3%–

359Teton County, IDID13,2541.3%–

360Aransas County, TXTX26,1461.3%–

361Dunn County, WIWI46,2231.3%–

362Sauk County, WIWI66,6521.3%–

363Jefferson County, MTMT13,3291.3%–

364Waushara County, WIWI25,2231.3%–

365Judith Basin County, MTMT2,1621.3%–

366Buchanan County, IAIA20,8831.3%–

367Polk County, MOMO33,6041.3%–

368Gillespie County, TXTX28,5271.3%–

369Leon County, TXTX16,8941.3%–

370Thomas County, KSKS7,7251.3%–

371Barton County, KSKS24,7901.3%–

372Burleigh County, NDND103,2511.2%–

373Monroe County, WIWI46,5721.2%–

374Cuyahoga County, OHOH1,232,9251.2%–

375Emmet County, IAIA9,1071.2%–

376Trempealeau County, WIWI31,1711.2%–

377McPherson County, KSKS30,0641.2%–

378Saline County, KSKS53,3771.2%–

379Converse County, WYWY13,8241.2%–

380Bastrop County, TXTX118,9081.2%–

381Kendall County, ILIL145,4701.2%–

382Ouray County, COCO5,2651.2%–

383Cherokee County, IAIA11,3691.2%–

384Union County, IAIA11,8291.2%–

385Lake of the Woods County, MNMN3,7701.2%–

386Meade County, SDSD30,7111.2%–

387Reeves County, TXTX12,1381.2%–

388Clay County, KSKS7,9901.2%–

389Warren County, IAIA57,3311.2%–

390Scotts Bluff County, NENE35,5861.2%–

391Buena Vista County, IAIA20,4491.2%–

392Wells County, NDND3,7291.2%–

393Hennepin County, MNMN1,284,7841.2%–

394Muscatine County, IAIA41,8531.2%–

395Jo Daviess County, ILIL21,5941.2%–

396Clay County, MNMN67,7341.2%–

397Brown County, SDSD37,5611.2%–

398Clinton County, MIMI80,4321.2%–

399Cass County, NDND201,7941.2%–

400Waukesha County, WIWI417,2101.2%–

401Beltrami County, MNMN47,0551.2%–

402Benzie County, MIMI18,5681.2%–

403Aitkin County, MNMN16,2521.2%–

404Prairie County, ARAR7,9231.2%–

405Platte County, WYWY8,6341.2%–

406Itasca County, MNMN45,4041.2%–

407Gosper County, NENE1,8031.1%–

408Clayton County, IAIA16,8451.1%–

409Lake County, SDSD10,9931.1%–

410Jefferson County, KSKS18,2961.1%–

411Fallon County, MTMT2,9591.1%–

412Perkins County, NENE2,8491.1%–

413Ransom County, NDND5,6171.1%–

414Winnebago County, IAIA10,2511.1%–

415Columbia County, WIWI58,1321.1%–

416Major County, OKOK7,5361.1%–

417Hardin County, IAIA16,4551.1%–

418Oliver County, NDND1,8981.1%–

419Ozaukee County, WIWI94,3461.1%–

420McIntosh County, OKOK19,7581.1%–

421Grundy County, IAIA12,3611.1%–

422Portage County, OHOH163,4041.1%–

423Goodhue County, MNMN48,1951.1%–

424Gray County, TXTX20,9191.1%–

425Nicollet County, MNMN34,2731.1%–

426Meagher County, MTMT2,1371.1%–

427Logan County, KSKS2,6611.1%–

428Harrison County, IAIA14,6231.1%–

429Hubbard County, MNMN22,3691.1%–

430Grundy County, ILIL54,0521.1%–

431Motley County, TXTX1,0431.1%–

432Steele County, NDND1,7971.1%–

433Washington County, IAIA22,6671.1%–

434Traverse County, MNMN3,1301.1%–

435Outagamie County, WIWI195,8941.1%–

436McCone County, MTMT1,7201.1%–

437Phillips County, MTMT4,2031.1%–

438Clark County, WIWI35,0521.1%–

439San Augustine County, TXTX7,7221.1%–

440Nemaha County, NENE7,1021.1%–

441Brown County, TXTX38,7111.1%–

442Rio Blanco County, COCO6,6831.1%–

443Monroe County, IAIA7,4061.1%–

444Callahan County, TXTX14,4911.1%–

445Hanson County, SDSD3,4561.1%–

446Cass County, MNMN31,4301.1%–

447Eau Claire County, WIWI109,0331.1%–

448Wrangell, AKAK2,0071.1%–

449Belmont County, OHOH64,4341.1%–

450Burnet County, TXTX57,0151.1%–

451Riley County, KSKS72,5981.1%–

452Winnebago County, WIWI174,2181.1%–

453Westmoreland County, PAPA349,3241.1%–

454Grand Traverse County, MIMI96,7291.1%–

455Wibaux County, MTMT8851.1%–

456Douglas County, WIWI43,9901.1%–

457Washington County, WIWI139,2381.1%–

458Bennett County, SDSD3,3071.0%–

459Monona County, IAIA8,5391.0%–

460Logan County, COCO20,6541.0%–

461Falls Church, VAVA15,1591.0%–

462Stearns County, MNMN164,1101.0%–

463Fayette County, PAPA123,0211.0%–

464Blaine County, IDID25,5171.0%–

465Fort Bend County, TXTX975,1911.0%–

466Polk County, IAIA516,5461.0%–

467Red Lake County, MNMN3,9401.0%–

468Ellis County, KSKS29,0751.0%–

469Sibley County, MNMN15,3561.0%–

470Faribault County, MNMN13,8881.0%–

471Tom Green County, TXTX120,6021.0%–

472Atchison County, KSKS16,1721.0%–

473Lake County, OHOH232,2171.0%–

474Lincoln County, OKOK35,2781.0%–

475Benton County, MNMN41,7441.0%–

476Logan County, OKOK55,4731.0%–

477Mille Lacs County, MNMN27,7531.0%–

478Mitchell County, IAIA10,6501.0%–

479Smith County, KSKS3,5661.0%–

480Kendall County, TXTX53,2891.0%–

481Ontonagon County, MIMI5,8231.0%–

482Richardson County, NENE7,5301.0%–

483Madison County, IAIA17,2701.0%–

484Murray County, MNMN7,9421.0%–

485Charlevoix County, MIMI26,0361.0%–

486Pettis County, MOMO44,2541.0%–

487Livingston County, ILIL35,0571.0%–

488Mountrail County, NDND9,3951.0%–

489DeKalb County, ILIL101,8351.0%–

490Montgomery County, ARAR8,5791.0%–

491Jewell County, KSKS2,8301.0%–

492Butler County, KSKS69,4841.0%–

493Otter Tail County, MNMN61,0411.0%–

494Marquette County, WIWI15,9271.0%–

495Nodaway County, MOMO20,1741.0%–

496Stevens County, MNMN9,7471.0%–

497Chase County, KSKS2,5721.0%–

498Starke County, ININ23,4251.0%–

499Crawford County, IAIA16,2371.0%–

500San Patricio County, TXTX72,0531.0%–

SHOWING 1–500 OF 2,650

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Download CSV (full list, 2,650 rows)

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

Frequently asked

Which county has the highest czech share?

Butler County, Nebraska ranks #1 with 27.7% (2020 American Community Survey).

What are the top 5 counties by czech share?

Butler County, Nebraska, Lavaca County, Texas, Saunders County, Nebraska, Bon Homme County, South Dakota, Colfax County, Nebraska.

How many counties are in this ranking?

2,650 counties qualify after filtering for population minimums and data availability. The ranking covers 2020 ACS 5-year data.

How is czech share measured?

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