Which county has the highest uninsured?

Oglala Lakota County, South Dakota ranks #1 with 44.6% (2024 American Community Survey).

What are the top 5 counties by uninsured?

Oglala Lakota County, South Dakota, LaGrange County, Indiana, Buffalo County, South Dakota, Holmes County, Ohio, Scotland County, Missouri.

How many counties are in this ranking?

3,144 counties qualify after filtering for population minimums and data availability. The ranking covers 2024 ACS 5-year data.

How is uninsured measured?

Share of residents without health insurance. Source: US Census Bureau, American Community Survey 5-year estimates (2024).

RANKING · 2024 ACS · 144 SHOWN OF 3,144

Highest uninsured rate, US counties

US counties ranked by the share of residents without health insurance (2024 ACS).

All statesAll rankings

SAME RANKING BYCities States Metros ZIP codes

YEAR2020 2024

RANKPLACESTATEPOPUNINSUREDVS 2020

3001Nicholas County, KYKY7,9493.5%−19%

3002Door County, WIWI30,6163.5%−10%

3003Marquette County, MIMI68,0643.4%−19%

3004Monroe County, MIMI156,0043.4%−15%

3005Benton County, MNMN41,7443.4%+0%

3006Nicollet County, MNMN34,2733.4%+3%

3007Boone County, NENE5,3553.4%−38%

3008Broome County, NYNY195,7363.4%−13%

3009Chenango County, NYNY45,7153.4%+0%

3010Columbia County, NYNY60,1683.4%−26%

3011Rensselaer County, NYNY160,5103.4%−8%

3012Jerauld County, SDSD1,6543.4%−35%

3013Stanley County, SDSD3,0183.4%−17%

3014Liberty County, MTMT1,9573.4%−49%

3015Grand Isle County, VTVT7,5113.4%+0%

3016Butler County, PAPA200,1693.4%+3%

3017Grundy County, ILIL54,0523.4%−6%

3018Washington County, ILIL13,5643.4%+26%

3019Letcher County, KYKY19,9523.4%−19%

3020McPherson County, NENE3693.4%+3%

3021Lincoln County, WAWA11,9823.4%+0%

3022Iowa County, WIWI23,9513.4%+0%

3023San Francisco County, CACA826,0793.3%−8%

3024Bristol County, MAMA593,6403.3%+14%

3025Ottawa County, MIMI308,4593.3%−6%

3026Washtenaw County, MIMI370,2143.3%+3%

3027Oneida County, NYNY226,3923.3%−13%

3028Onondaga County, NYNY466,5843.3%−6%

3029Ontario County, NYNY113,1303.3%+0%

3030Cambria County, PAPA128,9683.3%−20%

3031King George County, VAVA29,6463.3%−30%

3032Lower Connecticut River Valley Planning Region, CTCT177,3113.3%–

3033Honolulu County, HIHI988,7033.3%−3%

3034Piatt County, ILIL16,7913.3%−15%

3035Scott County, ININ25,0533.3%−55%

3036Adams County, IAIA3,6173.3%−50%

3037Boone County, IAIA26,7993.3%+6%

3038Delaware County, IAIA17,6743.3%−8%

3039Placer County, CACA442,0813.2%−14%

3040Leelanau County, MIMI22,9823.2%−46%

3041Houston County, MNMN18,4003.2%−33%

3042Albany County, NYNY321,2253.2%+7%

3043Wheeler County, OROR1,4723.2%−40%

3044Kent County, RIRI173,4953.2%+7%

3045Breathitt County, KYKY12,5583.2%−14%

3046De Witt County, ILIL15,1183.2%−18%

3047Posey County, ININ24,9883.2%−36%

3048Butler County, IAIA14,0493.2%−11%

3049Iowa County, IAIA16,5043.2%+19%

3050Harrison County, KYKY19,6273.2%−42%

3051Oldham County, KYKY70,9863.2%+0%

3052Surry County, VAVA6,6033.1%−67%

3053Suffolk County, MAMA791,8913.1%−18%

3054Fallon County, MTMT2,9593.1%−59%

3055Clinton County, NYNY78,1383.1%−9%

3056Monroe County, NYNY750,5063.1%−3%

3057Schenectady County, NYNY162,5813.1%−18%

3058Putnam County, OHOH34,3803.1%+3%

3059Washington County, VTVT59,6523.1%−6%

3060Craig County, VAVA4,8003.1%−40%

3061Pierce County, WIWI43,5193.1%−26%

3062Waukesha County, WIWI417,2103.1%−6%

3063Pope County, ILIL3,6723.1%+41%

3064Guthrie County, IAIA10,7823.1%−14%

3065Magoffin County, KYKY11,1103.1%−30%

3066Marion County, KYKY20,1153.1%−16%

3067Calvert County, MDMD94,4843.0%−9%

3068Hampden County, MAMA464,3383.0%+0%

3069Jackson County, MNMN9,8573.0%−19%

3070Pope County, MNMN11,4203.0%+7%

3071Putnam County, ILIL5,6193.0%+7%

3072Benton County, IAIA26,0043.0%+25%

3073O'Brien County, IAIA14,2203.0%−6%

3074Westmoreland County, PAPA349,3243.0%−6%

3075Greenlee County, AZAZ9,3122.9%−3%

3076Wolfe County, KYKY6,2982.9%+142%

3077Clinton County, MIMI80,4322.9%−22%

3078Erie County, NYNY946,7412.9%−6%

3079Niagara County, NYNY208,9122.9%−6%

3080Logan County, NDND1,8592.9%+32%

3081Franklin, VAVA8,4782.9%−38%

3082Carroll County, MDMD176,6772.9%−9%

3083Bullitt County, KYKY86,4542.8%−24%

3084Essex County, MAMA826,6532.8%−7%

3085Hunterdon County, NJNJ131,7812.8%+0%

3086Tioga County, NYNY47,4532.8%−10%

3087Ransom County, NDND5,6172.8%−35%

3088Harding County, SDSD1,3312.8%−60%

3089Washington County, WIWI139,2382.8%−24%

3090Carroll County, IAIA20,3032.8%+33%

3091Barnstable County, MAMA233,5392.7%−13%

3092Borden County, TXTX5672.7%−45%

3093Livingston County, MIMI197,3152.7%−23%

3094Mills County, IAIA14,7932.7%−16%

3095Winneshiek County, IAIA19,7332.7%+4%

3096Saratoga County, NYNY241,3432.6%−7%

3097Sherman County, OROR2,0512.6%−65%

3098Goochland County, VAVA29,1872.6%−32%

3099Calumet County, WIWI53,9822.6%−19%

3100Henderson County, ILIL5,9842.6%−38%

3101Logan County, ILIL27,1822.6%−30%

3102Dickinson County, IAIA18,0772.6%−43%

3103Plymouth County, MAMA546,8292.5%+4%

3104Worcester County, MAMA888,5022.5%+9%

3105Kittson County, MNMN4,0312.5%−64%

3106Los Alamos County, NMNM19,4072.5%−11%

3107Bath County, VAVA4,0762.5%−74%

3108Ozaukee County, WIWI94,3462.5%−7%

3109Monroe County, ILIL34,8402.5%+0%

3110Marion County, IAIA34,1922.5%−36%

3111Cameron Parish, LALA4,7182.4%−72%

3112Middlesex County, MAMA1,669,9792.4%−8%

3113Calhoun County, ILIL4,3002.4%+140%

3114Knott County, KYKY13,3212.4%−50%

3115Perry County, KYKY26,5552.4%−49%

3116Red Lake County, MNMN3,9402.3%−23%

3117Kidder County, NDND2,3932.3%−82%

3118Elk County, PAPA29,9262.3%−12%

3119Bristol County, RIRI50,0012.3%+10%

3120Crockett County, TXTX2,7692.3%−89%

3121Poquoson, VAVA13,2922.3%−28%

3122Shelby County, IAIA11,6892.3%−52%

3123Leslie County, KYKY9,6272.3%−39%

3124Golden Valley County, NDND1,8082.2%−63%

3125Menard County, ILIL11,8632.2%−8%

3126Bremer County, IAIA25,2962.2%−31%

3127Dukes County, MAMA21,2192.1%−63%

3128Franklin County, MAMA70,6982.1%−12%

3129Cameron County, PAPA4,2112.1%−34%

3130Carver County, MNMN114,3792.1%−28%

3131Brown County, ILIL6,4012.1%−66%

3132Daniels County, MTMT1,6122.0%−51%

3133Mora County, NMNM4,0512.0%−29%

3134Warren County, IAIA57,3312.0%−17%

3135Washington County, RIRI129,7952.0%−17%

3136Norfolk County, MAMA739,7491.9%+6%

3137Traverse County, MNMN3,1301.9%−41%

3138McPherson County, SDSD2,3471.9%−74%

3139Berkshire County, MAMA128,2241.7%−35%

3140Hampshire County, MAMA164,0651.7%−29%

3141Falls Church, VAVA15,1591.7%−35%

3142Martin County, KYKY10,6971.6%−66%

3143Harding County, NMNM6171.2%−88%

3144Loving County, TXTX520.0%−100%

SHOWING 3,001–3,144 OF 3,144

1 2 3 4 5 6 7

Download CSV (full list, 3,144 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES