RANKING · 1990 CENSUS · 500 SHOWN OF 3,122

Least racially diverse, US counties · 1990

US counties with the lowest CensusEasy Diversity Score, where most residents share the same race or ethnicity (2023 ACS). Slope County, North Dakota leads at 0. 3,122 counties qualify in total. Kentucky carries 6 of the top 25 entries.

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All statesAll rankings

SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPDIVERSITY SCOREVS 2000

01Slope County, NDND6280−100%

02Worth County, MOMO1,9140−93%

03Pierce County, NDND3,8380−94%

04Sequatchie County, TNTN17,8610−94%

05Mercer County, MOMO3,4040−78%

06McPherson County, SDSD2,3470−64%

07Wolfe County, KYKY6,2980−82%

08Blaine County, NENE4580−14%

09Hayes County, NENE8210−94%

10Clinton County, KYKY9,1390−88%

11Faulk County, SDSD2,1780−47%

12Magoffin County, KYKY11,1100−71%

13Rock County, NENE1,2590−68%

14Divide County, NDND2,1101−82%

15Grant County, KYKY26,1811−86%

16Ritchie County, WVWV8,0341−70%

17Webster County, WVWV7,7601−46%

18Jerauld County, SDSD1,6541−44%

19Owsley County, KYKY3,9321−70%

20Montgomery County, IAIA10,0021−84%

21Highland County, VAVA2,3181−61%

22Sullivan County, MOMO5,7381−97%

23Edmunds County, SDSD4,0221−56%

24Garfield County, NENE1,7101−73%

25Robertson County, KYKY2,3251−71%

26Fentress County, TNTN20,3221−61%

27Hanson County, SDSD3,4561+34%

28Chickasaw County, IAIA11,6631−67%

29Gosper County, NENE1,8031−79%

30Shelby County, ILIL20,5761−62%

31Republic County, KSKS4,6401−75%

32Steele County, NDND1,7971+22%

33Schuyler County, ILIL6,6571−60%

34Logan County, NDND1,8591−63%

35Scott County, ILIL4,8661+3%

36Van Buren County, IAIA7,1311−67%

37Estill County, KYKY13,9621−45%

38Noble County, OHOH14,2761−95%

39Roane County, WVWV13,3171−67%

40Murray County, MNMN7,9421−78%

41Cedar County, NENE8,3731−33%

42Holmes County, OHOH44,9701−65%

43Kingsbury County, SDSD5,2841−63%

44Allamakee County, IAIA14,2381−90%

45Emmons County, NDND3,2151−71%

46Cumberland County, ILIL10,2081−54%

47Sargent County, NDND3,7111−52%

48Iowa County, WIWI23,9511−52%

49Greeley County, NENE2,1541−75%

50Fannin County, GAGA26,1111−60%

51Butler County, IAIA14,0491−53%

52Breathitt County, KYKY12,5581−69%

53Calhoun County, WVWV5,9781−44%

54Turner County, SDSD9,3141−40%

55Wheeler County, NENE7891−25%

56Audubon County, IAIA5,5091−48%

57Knox County, MOMO3,7281−46%

58Daviess County, ININ34,2091−84%

59Pope County, MNMN11,4201−45%

60Martin County, ININ9,8561−37%

61LaMoure County, NDND4,1351−35%

62Martin County, KYKY10,6971−38%

63Billings County, NDND1,0711+32%

64Scotland County, MOMO4,7961−60%

65Polk County, NENE5,2701−61%

66Jackson County, KYKY13,3251−22%

67Tyler County, WVWV7,8811−12%

68Carter County, KYKY26,1491−42%

69Douglas County, SDSD2,8881−14%

70Wayne County, IAIA6,7381−48%

71Keya Paha County, NENE7921−87%

72Jefferson County, PAPA43,2551−33%

73Pleasants County, WVWV7,3381−54%

74Sanborn County, SDSD2,3881−65%

75Humboldt County, IAIA9,4091−61%

76Piatt County, ILIL16,7911−50%

77Carroll County, IAIA20,3031−52%

78Pickett County, TNTN5,2191−48%

79Clay County, WVWV7,5381+1%

80Cuming County, NENE8,8231−91%

81Clark County, MOMO6,4751−39%

82Nuckolls County, NENE4,1001−56%

83Leslie County, KYKY9,6271−36%

84Plymouth County, IAIA25,6971−72%

85Hettinger County, NDND2,4921+17%

86Iowa County, IAIA16,5041−63%

87Bowman County, NDND2,7621−29%

88Boyd County, NENE1,6741+112%

89Deuel County, SDSD4,4081−48%

90Van Buren County, TNTN6,8741+1%

91Valley County, NENE4,0941−69%

92Wells County, NDND3,7291−18%

93McPherson County, NENE3691−71%

94Cass County, ILIL12,4631−93%

95Howard County, IAIA9,4151−33%

96Wetzel County, WVWV13,7341−32%

97Iron County, WIWI6,1271−31%

98Lyon County, IAIA12,3541+1%

99Lee County, KYKY7,2971−86%

100Calhoun County, ILIL4,3001−28%

101Pike County, ININ12,0031−28%

102Loup County, NENE5701−68%

103Lafayette County, WIWI17,4781−34%

104Trego County, KSKS2,7401−59%

105Grant County, MNMN6,0851−35%

106Carroll County, ININ20,6551−81%

107Taylor County, WIWI20,1181−38%

108Harlan County, NENE3,0001−39%

109Adams County, OHOH27,8651−37%

110Vinton County, OHOH12,6451−34%

111Sheridan County, NDND1,2962+28%

112Wayne County, WVWV37,3092−24%

113Palo Alto County, IAIA8,8992−47%

114Jewell County, KSKS2,8302−23%

115Jackson County, IAIA19,2882−22%

116Daniels County, MTMT1,6122−67%

117Adams County, IAIA3,6172−24%

118Tucker County, WVWV6,5402+94%

119Switzerland County, ININ10,0372−47%

120Guthrie County, IAIA10,7822−53%

121Hamilton County, ILIL7,8592−56%

122Boone County, NENE5,3552−35%

123Garfield County, MTMT1,1482+14%

124Moultrie County, ILIL14,3712−19%

125Elliott County, KYKY7,2652+1%

126Pike County, ILIL14,2312−71%

127Mason County, WVWV24,7072−49%

128Clay County, ARAR14,0522−39%

129Miner County, SDSD2,2812−49%

130Rooks County, KSKS4,6462−73%

131Marshall County, KYKY31,6592−36%

132Clayton County, IAIA16,8452−34%

133Campbell County, SDSD1,3772+134%

134Overton County, TNTN23,7872−37%

135Grundy County, IAIA12,3612−30%

136Clay County, KSKS7,9902−57%

137McCook County, SDSD5,9642−35%

138Lincoln County, MNMN5,5832−40%

139McIntosh County, NDND2,4512−39%

140Wirt County, WVWV4,8792−2%

141Gilmer County, WVWV7,0852−69%

142Gasconade County, MOMO14,7842−2%

143Jones County, SDSD9132+94%

144Logan County, NENE6692−35%

145Smith County, KSKS3,5662−22%

146Griggs County, NDND2,2392+27%

147Letcher County, KYKY19,9522−43%

148Mitchell County, NCNC15,0622−71%

149Effingham County, ILIL34,5192−42%

150Nemaha County, KSKS10,0542−46%

151Nelson County, NDND2,9632+29%

152Clark County, SDSD4,0312+11%

153Trempealeau County, WIWI31,1712−39%

154Emmet County, IAIA9,1072−85%

155Rockcastle County, KYKY16,1482−20%

156Union County, GAGA27,8592−57%

157Gove County, KSKS2,6312−51%

158Adair County, IAIA7,4032−29%

159Buffalo County, WIWI13,3182−32%

160Hutchinson County, SDSD7,4132+4%

161Menard County, ILIL11,8632−45%

162Gentry County, MOMO6,3842−23%

163Scott County, TNTN22,6712−8%

164Dickenson County, VAVA13,2362−16%

165Adams County, NDND2,2752−25%

166Richland County, ILIL15,2192−55%

167Towns County, GAGA13,2852−38%

168Johnson County, TNTN18,7182−78%

169Lac qui Parle County, MNMN6,7042−3%

170Lawrence County, KYKY15,7652+26%

171Dundy County, NENE1,5682−80%

172Grundy County, TNTN14,1162−43%

173McHenry County, NDND5,1302+40%

174Clearfield County, PAPA78,1002−68%

175Juniata County, PAPA23,4032−65%

176Shannon County, MOMO7,2852−37%

177Keokuk County, IAIA9,7972−11%

178Hooker County, NENE6862−35%

179Caldwell County, MOMO9,0122−26%

180Mitchell County, IAIA10,6502−18%

181Ripley County, ININ29,4342−44%

182Cavalier County, NDND3,4972−12%

183Wabasha County, MNMN21,5372−68%

184Benton County, IAIA26,0042−23%

185Holt County, MOMO4,2002+34%

186Dickinson County, IAIA18,0772−21%

187Spink County, SDSD6,1552+7%

188Knott County, KYKY13,3212−50%

189Mifflin County, PAPA46,1272−42%

190Mason County, ILIL12,4112−7%

191Holt County, NENE10,0672−16%

192Pocahontas County, IAIA6,8192−41%

193Harrison County, IAIA14,6232−20%

194Sherman County, NENE2,9242−41%

195Dixon County, NENE5,6022−86%

196Putnam County, MOMO4,5462−3%

197Vermillion County, ININ15,4882−23%

198Somerset County, PAPA72,0042−68%

199Sheridan County, KSKS2,4272−53%

200Richland County, WIWI17,0362−39%

201Casey County, KYKY16,2052−53%

202Kossuth County, IAIA14,3222−37%

203Stanton County, NENE5,7442−72%

204Franklin County, ILIL36,9162−17%

205Christian County, ILIL33,4432−76%

206Reynolds County, MOMO5,9922−48%

207Nicholas County, WVWV23,8482+14%

208Todd County, MNMN26,0602−65%

209Butler County, KYKY12,5202−53%

210Decatur County, KSKS2,7162−48%

211Washington County, ININ28,3832−20%

212Crawford County, ININ10,5092−32%

213Liberty County, MTMT1,9572+61%

214McLean County, KYKY9,0642−33%

215Clarke County, IAIA9,5742−81%

216Lewis County, WVWV16,3942−10%

217Wadena County, MNMN14,3882−48%

218Wibaux County, MTMT8852+10%

219Greene County, ILIL11,3132−38%

220Unicoi County, TNTN17,8562−59%

221Monroe County, OHOH12,9942+15%

222Garfield County, WAWA2,4162−67%

223Mills County, IAIA14,7932−53%

224Wayne County, MOMO10,7822+9%

225Monona County, IAIA8,5392−7%

226Polk County, TNTN18,5922−15%

227Garrett County, MDMD28,3702−20%

228Vernon County, WIWI31,4432−10%

229Golden Valley County, NDND1,8082−26%

230Scott County, VAVA21,2002−21%

231Price County, WIWI13,9882−25%

232Ozark County, MOMO9,1722−28%

233Perry County, OHOH35,9182+13%

234Sac County, IAIA9,5252−36%

235Kidder County, NDND2,3932+3%

236Clay County, IAIA16,2022−59%

237Pepin County, WIWI7,5132+35%

238Newton County, ARAR7,0262−38%

239Bracken County, KYKY8,5112−22%

240Elk County, PAPA29,9262−1%

241Warren County, PAPA37,0382+7%

242Hancock County, ILIL16,8032−7%

243Delaware County, IAIA17,6742+1%

244Fillmore County, NENE5,4582−54%

245Osage County, MOMO13,6112+12%

246Jasper County, ILIL9,0322+19%

247Brown County, ININ15,7772−31%

248Schuyler County, MOMO4,1402+2%

249Alpena County, MIMI28,8532−22%

250Ida County, IAIA6,7772+9%

251Clay County, ILIL12,7932−28%

252Shelby County, IAIA11,6892−14%

253Green County, WIWI37,2272−41%

254White County, ININ25,1642−84%

255Potter County, SDSD2,3772+139%

256Fillmore County, MNMN21,5402+8%

257Morrison County, MNMN34,6202−16%

258O'Brien County, IAIA14,2202−64%

259Ransom County, NDND5,6172−26%

260Johnson County, KYKY22,0512−16%

261Marinette County, WIWI42,5742−24%

262Bedford County, PAPA47,4802−19%

263Antelope County, NENE6,3522+16%

264Greenup County, KYKY35,2132−37%

265Sweet Grass County, MTMT3,7622−50%

266Ohio County, ININ5,9942−11%

267Floyd County, KYKY34,4012−55%

268Craig County, VAVA4,8002+42%

269Warren County, ININ8,4742+36%

270Marshall County, KSKS9,8522−18%

271Kewaunee County, WIWI20,7582−5%

272Clark County, WIWI35,0522−40%

273Harrison County, MOMO8,2812−25%

274Potter County, PAPA15,8972−28%

275Brown County, NENE2,8262−12%

276Lee County, VAVA21,6422−12%

277Greene County, ARAR47,4112−33%

278Carroll County, VAVA29,2992−55%

279Washington County, KSKS5,5332+22%

280Butler County, NENE8,5072−46%

281Dubois County, ININ44,0162−68%

282Union County, TNTN21,4502−5%

283Knox County, MEME41,1172−13%

284Oxford County, MEME60,3462−7%

285Daviess County, MOMO8,5582+21%

286Grant County, SDSD7,5342+24%

287Rawlins County, KSKS2,4312−19%

288Kittson County, MNMN4,0312−40%

289Buchanan County, IAIA20,8832−22%

290Florence County, WIWI4,7482+14%

291Judith Basin County, MTMT2,1622+54%

292Ottawa County, KSKS5,7442−48%

293Lincoln County, WVWV19,1772+51%

294Clay County, ININ26,4103−1%

295Boone County, IAIA26,7993−25%

296Powell County, KYKY12,8123−24%

297Jefferson County, NENE7,0703−32%

298Hamilton County, NYNY5,0063−39%

299Hickory County, MOMO9,0443+5%

300Greene County, IAIA8,6583−49%

301Jo Daviess County, ILIL21,5943−45%

302Hand County, SDSD3,1213+154%

303Pendleton County, KYKY14,8003−18%

304Burke County, NDND2,1323+64%

305Braxton County, WVWV11,8853−17%

306Cass County, IAIA12,9603−1%

307Ringgold County, IAIA4,6423+99%

308Madison County, IAIA17,2703+2%

309Russell County, KYKY18,6083−34%

310Morrow County, OHOH36,3053+4%

311Preston County, WVWV34,0043+4%

312Lewis County, KYKY12,9013+53%

313Winston County, ALAL23,8293−48%

314Auglaize County, OHOH45,9093−20%

315Bottineau County, NDND6,2843+16%

316Carlisle County, KYKY4,7473−44%

317Calhoun County, IAIA9,5623−41%

318Keweenaw County, MIMI2,1863−75%

319Belknap County, NHNH65,1473−33%

320Miller County, MOMO25,8173−23%

321Laurel County, KYKY63,7463−30%

322Hinsdale County, COCO7533−40%

323Preble County, OHOH40,6643+5%

324Russell County, VAVA25,3323−72%

325Grayson County, KYKY27,4063−24%

326Union County, IAIA11,8293−28%

327Fountain County, ININ17,0133−20%

328Pike County, KYKY54,7213−28%

329Somerset County, MEME51,6203+4%

330Bollinger County, MOMO10,6463+8%

331Pawnee County, NENE2,5103+18%

332Harrison County, ININ40,4373−30%

333Carroll County, NHNH52,7843+6%

334Fallon County, MTMT2,9593+28%

335Jackson County, WVWV27,4503+82%

336Cheyenne County, KSKS2,6043−61%

337Morgan County, ININ74,9673+6%

338Ford County, ILIL13,2163−38%

339Macon County, TNTN27,6633−47%

340Jackson County, OHOH32,8173−19%

341Wayne County, NENE10,0203−59%

342Jennings County, ININ27,6223−34%

343St. Croix County, WIWI98,2763−32%

344Ste. Genevieve County, MOMO18,6893−30%

345Morgan County, KYKY14,4153−77%

346Webster County, NENE3,3363−3%

347Lawrence County, ININ45,5683−28%

348Cleburne County, ARAR25,6723−22%

349Rock County, MNMN9,5243−53%

350Swift County, MNMN9,7633−83%

351Clark County, ILIL15,1143+76%

352Sullivan County, ININ20,8313−78%

353Houston County, MNMN18,4003−11%

354Clinton County, PAPA37,8703−21%

355Chase County, KSKS2,5723−58%

356Petroleum County, MTMT5483−6%

357Lincoln County, WIWI28,4033−29%

358Herkimer County, NYNY59,2193−35%

359Grant County, WIWI52,4463−25%

360Barron County, WIWI46,4843−18%

361Owen County, ININ21,8863+1%

362Rush County, KSKS2,8453−21%

363Boone County, ININ80,6893−40%

364Merrick County, NENE7,9053−51%

365Grant County, NENE5613−27%

366Susquehanna County, PAPA38,2373−0%

367Davis County, IAIA9,2303+9%

368Trimble County, KYKY8,7013−33%

369Lucas County, IAIA8,8473−9%

370Cameron County, PAPA4,2113+13%

371Stark County, NDND34,0133−21%

372Washington County, ILIL13,5643−4%

373Marion County, ARAR17,5933+9%

374Henderson County, ILIL5,9843−5%

375Crook County, WYWY7,8523+13%

376Union County, ININ6,8633+63%

377Allen County, KYKY22,5363−41%

378Piscataquis County, MEME17,4093+18%

379Nemaha County, NENE7,1023−39%

380Ripley County, MOMO10,7173−6%

381Osceola County, IAIA5,9803−43%

382Floyd County, IAIA14,9013−39%

383Rutland County, VTVT59,6533−14%

384Lake of the Woods County, MNMN3,7703+2%

385Coos County, NHNH31,3433+9%

386Perry County, PAPA46,8063−5%

387Grainger County, TNTN25,7393−20%

388Mitchell County, KSKS5,5903−28%

389Saunders County, NENE23,7023−10%

390Crawford County, ILIL18,6483−81%

391Wayne County, TNTN16,4163−84%

392Buchanan County, VAVA18,4923−62%

393Hitchcock County, NENE2,4673−25%

394Orleans County, VTVT27,6003−11%

395Linn County, KSKS9,9503−26%

396Wright County, MNMN157,5593−32%

397Dallas County, IAIA118,4573−81%

398Presque Isle County, MIMI13,1283+26%

399Orange County, VTVT30,0023+5%

400Edwards County, ILIL5,8983+27%

401Waldo County, MEME40,6933+26%

402Wyoming County, PAPA25,7903−15%

403Meigs County, OHOH21,5873−13%

404Washington County, WIWI139,2383−45%

405Douglas County, MNMN40,1203+5%

406Bremer County, IAIA25,2963−19%

407Crawford County, OHOH41,8963−26%

408Franklin County, MEME30,8243+2%

409Greene County, ININ31,1653+14%

410Le Sueur County, MNMN29,4533−71%

411Piute County, UTUT1,5093−74%

412Armstrong County, PAPA63,6983−7%

413Putnam County, WVWV56,8853−24%

414Lincoln County, SDSD77,1453−17%

415Sully County, SDSD1,4793+37%

416Randolph County, WVWV26,8823−40%

417Woodford County, ILIL38,1113+2%

418Douglas County, MOMO12,3423+6%

419Oconto County, WIWI40,1953+25%

420Barton County, MOMO11,7953−16%

421Camden County, MOMO44,0473−15%

422McCone County, MTMT1,7203−21%

423Pierce County, NENE7,3783+27%

424Lake County, MNMN10,7463+50%

425Grand Isle County, VTVT7,5113+62%

426Jackson County, ININ47,3703−68%

427Cherokee County, IAIA11,3693−25%

428Kearney County, NENE6,7903−52%

429Jersey County, ILIL21,1603−16%

430Livingston County, KYKY8,8633+38%

431Garden County, NENE1,8043−28%

432Cloud County, KSKS8,8333+8%

433Arthur County, NENE3963−30%

434Stone County, MOMO32,5033−1%

435Randolph County, ININ24,4383−19%

436Door County, WIWI30,6163−9%

437Taylor County, WVWV16,2873−17%

438Oregon County, MOMO8,7093−6%

439Upshur County, WVWV23,7583−14%

440Benton County, ININ8,8833−54%

441Otsego County, MIMI26,0803+2%

442Sioux County, IAIA36,7743−60%

443Marshall County, MNMN8,7983−58%

444Wyandot County, OHOH21,5673−37%

445Furnas County, NENE4,5243−7%

446Coffey County, KSKS8,4673−38%

447Taylor County, IAIA5,8353−67%

448Whitley County, KYKY37,2973+7%

449Sullivan County, NHNH43,9613+15%

450Franklin County, ININ23,2863+94%

451Bradford County, PAPA59,6003−10%

452Winneshiek County, IAIA19,7333−37%

453Clare County, MIMI31,5433−20%

454Stark County, ILIL5,3193+22%

455Perkins County, NENE2,8493−47%

456Fulton County, ARAR12,4923+44%

457Stone County, ARAR12,7033+10%

458Decatur County, ININ26,5763+4%

459Chippewa County, MNMN12,4063−43%

460Camas County, IDID1,3163−76%

461Edgar County, ILIL16,3233−50%

462Wright County, IAIA12,8013−73%

463Caledonia County, VTVT30,4143+2%

464Gallatin County, ILIL4,6163+16%

465Scott County, ININ25,0533+17%

466Benton County, MOMO20,5363+19%

467Oscoda County, MIMI8,7233+25%

468Gage County, NENE21,7113−4%

469Big Stone County, MNMN5,0543+49%

470Foster County, NDND3,2123+331%

471Dearborn County, ININ51,6093−5%

472Chippewa County, WIWI67,6143−11%

473Brown County, OHOH44,3973−5%

474Boone County, WVWV20,2513+19%

475Sullivan County, PAPA5,8563−58%

476Granite County, MTMT3,6583−3%

477Northumberland County, PAPA89,9203−49%

478Fulton County, PAPA14,4833+29%

479Texas County, MOMO25,9944−8%

480Appanoose County, IAIA12,0774−16%

481Whitley County, ININ35,0464+11%

482Brown County, MNMN25,5174−43%

483Bullitt County, KYKY86,4544+10%

484Sibley County, MNMN15,3564−75%

485Dade County, GAGA16,1544−26%

486Crawford County, MOMO22,9294+35%

487Cullman County, ALAL94,0094−57%

488Cedar County, IAIA18,3594+0%

489Chisago County, MNMN59,1424−39%

490Crittenden County, KYKY8,8074+14%

491Decatur County, IAIA7,6554−56%

492Clarion County, PAPA36,6804−7%

493Wayne County, ILIL15,8824+36%

494Pocahontas County, WVWV7,6024+6%

495Dallas County, MOMO18,0254+25%

496Van Buren County, ARAR16,2384−24%

497De Witt County, ILIL15,1184−29%

498Schuylkill County, PAPA145,0854−59%

499Rush County, ININ16,7674−8%

500Monroe County, ILIL34,8404+33%

SHOWING 1–500 OF 3,122

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Download CSV (full list, 3,122 rows)How this score is calculated

UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES

Frequently asked

Which county has the lowest diversity score?

Slope County, North Dakota ranks #1 with 0 (1990 American Community Survey).

What are the top 5 counties by diversity score?

Slope County, North Dakota, Worth County, Missouri, Pierce County, North Dakota, Sequatchie County, Tennessee, Mercer County, Missouri.

How many counties are in this ranking?

3,122 counties qualify after filtering for population minimums and data availability. The ranking covers 1990 ACS 5-year data.

How is diversity score measured?

CensusEasy Diversity Score (0 to 100): the chance that two random residents are of a different race or ethnicity, rescaled so 100 is a perfectly even split across all five groups. A Simpson diversity index over the five ACS race and ethnicity shares. Source: US Census Bureau, American Community Survey 5-year estimates (1990).