RANKING · 1990 CENSUS · 122 SHOWN OF 3,122

Most racially diverse, US counties · 1990

US counties ranked by the CensusEasy Diversity Score (0 to 100), the chance two random residents are of a different race or ethnicity (1990 ACS).

Flip the list · Least racially diverse, US counties →

All statesAll rankings

SAME RANKING BYCities States Metros ZIP codes

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

RANKPLACESTATEPOPDIVERSITY SCOREVS –

3001Pike County, ININ12,0031–

3002Calhoun County, ILIL4,3001–

3003Lee County, KYKY7,2971–

3004Menard County, ILIL11,8631–

3005Adams County, OHOH27,8651–

3006Clayton County, IAIA16,8451–

3007Kossuth County, IAIA14,3221–

3008Cass County, ILIL12,4631–

3009Clay County, ARAR14,0521–

3010Taylor County, WIWI20,1181–

3011Boone County, NENE5,3551–

3012Palo Alto County, IAIA8,8991–

3013Harlan County, NENE3,0001–

3014McPherson County, NENE3691–

3015Lincoln County, MNMN5,5831–

3016Grundy County, IAIA12,3611–

3017Vinton County, OHOH12,6451–

3018Deuel County, SDSD4,4081–

3019Guthrie County, IAIA10,7821–

3020Shannon County, MOMO7,2851–

3021Moultrie County, ILIL14,3711–

3022Hettinger County, NDND2,4921–

3023Leslie County, KYKY9,6271–

3024Lyon County, IAIA12,3541–

3025Nuckolls County, NENE4,1001–

3026Jewell County, KSKS2,8301–

3027Clark County, MOMO6,4751–

3028Cuming County, NENE8,8231–

3029Clay County, WVWV7,5381–

3030Pickett County, TNTN5,2191–

3031Lafayette County, WIWI17,4781–

3032Valley County, NENE4,0941–

3033Jackson County, IAIA19,2881–

3034Wetzel County, WVWV13,7341–

3035Sanborn County, SDSD2,3881–

3036Pleasants County, WVWV7,3381–

3037Keya Paha County, NENE7921–

3038Holt County, NENE10,0671–

3039Humboldt County, IAIA9,4091–

3040Douglas County, SDSD2,8881–

3041Howard County, IAIA9,4151–

3042Iowa County, IAIA16,5041–

3043Carroll County, ININ20,6551–

3044McHenry County, NDND5,1301–

3045Bowman County, NDND2,7621–

3046Jackson County, KYKY13,3251–

3047Carroll County, IAIA20,3031–

3048Plymouth County, IAIA25,6971–

3049Polk County, NENE5,2701–

3050Piatt County, ILIL16,7911–

3051Scotland County, MOMO4,7961–

3052Van Buren County, TNTN6,8741–

3053Wayne County, IAIA6,7381–

3054Billings County, NDND1,0711–

3055Tyler County, WVWV7,8811–

3056LaMoure County, NDND4,1351–

3057Wells County, NDND3,7291–

3058Iron County, WIWI6,1271–

3059Jefferson County, PAPA43,2551–

3060Carter County, KYKY26,1491–

3061Martin County, KYKY10,6971–

3062Knox County, MOMO3,7281–

3063Audubon County, IAIA5,5091–

3064Wheeler County, NENE7891–

3065Turner County, SDSD9,3141–

3066Pope County, MNMN11,4201–

3067Calhoun County, WVWV5,9781–

3068Breathitt County, KYKY12,5581–

3069Greeley County, NENE2,1541–

3070Emmons County, NDND3,2151–

3071Kingsbury County, SDSD5,2841–

3072Boyd County, NENE1,6741–

3073Butler County, IAIA14,0491–

3074Iowa County, WIWI23,9511–

3075Roane County, WVWV13,3171–

3076Fannin County, GAGA26,1111–

3077Noble County, OHOH14,2761–

3078Estill County, KYKY13,9621–

3079Martin County, ININ9,8561–

3080Daviess County, ININ34,2091–

3081Allamakee County, IAIA14,2381–

3082Cedar County, NENE8,3731–

3083Scott County, ILIL4,8661–

3084Sargent County, NDND3,7111–

3085Van Buren County, IAIA7,1311–

3086Holmes County, OHOH44,9701–

3087Republic County, KSKS4,6401–

3088Shelby County, ILIL20,5761–

3089Gosper County, NENE1,8031–

3090Cumberland County, ILIL10,2081–

3091Hanson County, SDSD3,4561–

3092Murray County, MNMN7,9421–

3093Robertson County, KYKY2,3251–

3094Garfield County, NENE1,7101–

3095Fentress County, TNTN20,3221–

3096Chickasaw County, IAIA11,6631–

3097Edmunds County, SDSD4,0221–

3098Sullivan County, MOMO5,7381–

3099Highland County, VAVA2,3181–

3100Montgomery County, IAIA10,0021–

3101Owsley County, KYKY3,9321–

3102Jerauld County, SDSD1,6541–

3103Webster County, WVWV7,7601–

3104Schuyler County, ILIL6,6571–

3105Ritchie County, WVWV8,0341–

3106Grant County, KYKY26,1811–

3107Logan County, NDND1,8591–

3108Divide County, NDND2,1101–

3109Steele County, NDND1,7971–

3110Magoffin County, KYKY11,1100–

3111Faulk County, SDSD2,1780–

3112Clinton County, KYKY9,1390–

3113Hayes County, NENE8210–

3114Blaine County, NENE4580–

3115Wolfe County, KYKY6,2980–

3116McPherson County, SDSD2,3470–

3117Mercer County, MOMO3,4040–

3118Rock County, NENE1,2590–

3119Sequatchie County, TNTN17,8610–

3120Pierce County, NDND3,8380–

3121Worth County, MOMO1,9140–

3122Slope County, NDND6280–

SHOWING 3,001–3,122 OF 3,122

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

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