RANKING · 1990 CENSUS · 122 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 (1990 ACS).

Flip the list · Most 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 –

3001Floyd County, TXTX4,88164–

3002Madera County, CACA167,92764–

3003Roosevelt County, MTMT10,24265–

3004Dillon County, SCSC27,45865–

3005Walker County, TXTX83,84265–

3006Grant County, NMNM27,25265–

3007Doña Ana County, NMNM229,09165–

3008Travis County, TXTX1,389,67065–

3009Big Horn County, MTMT12,75265–

3010Colfax County, NMNM12,18465–

3011Orange County, CACA3,149,50765–

3012San Patricio County, TXTX72,05365–

3013Deaf Smith County, TXTX18,62665–

3014Bell County, TXTX402,24865–

3015Hampton, VAVA137,31565–

3016San Diego County, CACA3,282,24865–

3017Richland County, SCSC434,95665–

3018Union County, NJNJ601,86365–

3019Iberville Parish, LALA29,57965–

3020Bailey County, TXTX6,96365–

3021Peach County, GAGA29,87765–

3022Terry County, TXTX11,72065–

3023Portsmouth, VAVA96,77765–

3024Wayne County, MIMI1,769,03865–

3025Kern County, CACA927,06865–

3026Saguache County, COCO6,73265–

3027Muscogee County, GAGA202,17165–

3028Jefferson County, TXTX254,32165–

3029Northampton County, VAVA11,87965–

3030Marlboro County, SCSC25,48865–

3031Lamb County, TXTX12,57965–

3032St. Louis, MOMO278,14466–

3033Kinney County, TXTX3,12866–

3034Parmer County, TXTX9,67866–

3035Warren County, NCNC18,89866–

3036Otero County, NMNM70,36866–

3037Luna County, NMNM25,40766–

3038Castro County, TXTX7,29566–

3039San Benito County, CACA70,08266–

3040Alexandria, VAVA160,66266–

3041Falls County, TXTX17,86966–

3042Lynn County, TXTX6,01766–

3043Karnes County, TXTX15,01866–

3044Richmond County, GAGA206,55966–

3045Calhoun County, TXTX19,59966–

3046San Juan County, UTUT14,54267–

3047Cumberland County, NCNC338,47367–

3048Fulton County, GAGA1,098,79167–

3049Santa Fe County, NMNM156,90767–

3050Goliad County, TXTX7,20867–

3051Victoria County, TXTX92,65667–

3052Bee County, TXTX32,51567–

3053Dawson County, TXTX11,77667–

3054Halifax County, NCNC46,53467–

3055Crosby County, TXTX4,85267–

3056Passaic County, NJNJ531,62467–

3057Norfolk, VAVA231,01367–

3058Valencia County, NMNM82,01368–

3059Yuma County, AZAZ224,44968–

3060Robertson County, TXTX17,83968–

3061Honolulu County, HIHI988,70368–

3062Nueces County, TXTX352,99268–

3063Grimes County, TXTX34,25268–

3064Tulare County, CACA485,14669–

3065Bernalillo County, NMNM667,60169–

3066DeKalb County, GAGA774,39469–

3067Cochran County, TXTX2,54669–

3068Hale County, TXTX31,81969–

3069San Bernardino County, CACA2,224,09169–

3070Scotland County, NCNC33,32269–

3071Aleutians West Census Area, AKAK5,24069–

3072Denver County, COCO740,61369–

3073Suffolk County, MAMA791,89169–

3074Coconino County, AZAZ144,36870–

3075La Paz County, AZAZ16,71170–

3076Refugio County, TXTX6,65770–

3077Pinal County, AZAZ539,38070–

3078Wharton County, TXTX42,06071–

3079Matagorda County, TXTX36,46371–

3080Maui County, HIHI160,59271–

3081Gonzales County, TXTX20,15971–

3082Kauai County, HIHI73,40071–

3083Liberty County, GAGA70,31371–

3084Philadelphia County, PAPA1,574,28171–

3085Dallas County, TXTX2,661,39771–

3086Navajo County, AZAZ109,94671–

3087Prince George's County, MDMD970,37472–

3088Graham County, AZAZ40,15772–

3089San Mateo County, CACA743,56872–

3090Bexar County, TXTX2,160,08872–

3091Hawaii County, HIHI210,04372–

3092Hendry County, FLFL48,27672–

3093Solano County, CACA455,37672–

3094San Joaquin County, CACA823,81573–

3095Caldwell County, TXTX55,15073–

3096Waller County, TXTX69,85873–

3097Cook County, ILIL5,194,62573–

3098Santa Clara County, CACA1,914,39173–

3099Chattahoochee County, GAGA8,46573–

3100Kings County, CACA154,32774–

3101Merced County, CACA297,26074–

3102Socorro County, NMNM15,83875–

3103San Juan County, NMNM120,34075–

3104Monterey County, CACA433,72975–

3105Fresno County, CACA1,035,45676–

3106Harris County, TXTX5,045,02677–

3107Hoke County, NCNC56,93977–

3108Essex County, NJNJ896,37978–

3109Sandoval County, NMNM159,56578–

3110Fort Bend County, TXTX975,19178–

3111Alameda County, CACA1,636,63080–

3112Kalawao County, HIHI8281–

3113Hudson County, NJNJ735,03381–

3114New York County, NYNY1,664,86282–

3115Robeson County, NCNC119,94183–

3116Bronx County, NYNY1,406,33283–

3117San Francisco County, CACA826,07984–

3118Cibola County, NMNM26,80784–

3119Los Angeles County, CACA9,694,93484–

3120Kings County, NYNY2,653,96384–

3121Queens County, NYNY2,358,18284–

3122Aleutians East, AKAK3,47985–

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