Which county has the highest average household size?

Oglala Lakota County, South Dakota ranks #1 with 4.46 (2024 American Community Survey).

What are the top 5 counties by average household size?

Oglala Lakota County, South Dakota, Kusilvak Census Area, Alaska, Northwest Arctic, Alaska, Wheeler County, Georgia, Jim Hogg County, Texas.

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 average household size measured?

Average number of people per household. Source: US Census Bureau, American Community Survey 5-year estimates (2024).

RANKING · 2024 ACS · 144 SHOWN OF 3,144

Largest households, US counties

US counties ranked by average household size (2023 ACS).

All statesAll rankings

SAME RANKING BYCities States Metros ZIP codes

YEAR2010 2020 2024

RANKPLACESTATEPOPAVERAGE HOUSEHOLD SIZEVS 2000

3001Audubon County, IAIA5,5092.11–

3002Jefferson County, IAIA15,2912.11–

3003Chase County, KSKS2,5722.11–

3004Mitchell County, KSKS5,5902.11–

3005Cheyenne County, NENE9,5282.11–

3006Perry County, ALAL7,4252.10–

3007Charlevoix County, MIMI26,0362.10–

3008Oktibbeha County, MSMS51,8962.10–

3009Mora County, NMNM4,0512.10–

3010Northampton County, NCNC16,4912.10–

3011Essex County, VTVT6,0512.10–

3012Richmond, VAVA237,2572.10–

3013Denver County, COCO740,6132.10–

3014Vilas County, WIWI23,7612.10–

3015Baraga County, MIMI8,1692.09–

3016Stutsman County, NDND21,4142.09–

3017Florence County, WIWI4,7482.09–

3018Grand County, COCO16,4962.09–

3019Las Animas County, COCO14,3912.09–

3020Phillips County, KSKS4,7282.09–

3021Kent County, MDMD19,5652.09–

3022Wrangell, AKAK2,0072.08–

3023Emmons County, NDND3,2152.08–

3024Grant County, NDND2,2062.08–

3025Lake of the Woods County, MNMN3,7702.08–

3026Tishomingo County, MSMS18,6392.08–

3027Park County, MTMT18,2142.08–

3028Nuckolls County, NENE4,1002.08–

3029Coos County, NHNH31,3432.08–

3030Wheeler County, OROR1,4722.08–

3031Allendale County, SCSC7,3552.08–

3032Arlington County, VAVA243,9312.08–

3033Albany County, WYWY38,5582.08–

3034Cape May County, NJNJ93,3902.08–

3035Teller County, COCO24,7562.08–

3036Jo Daviess County, ILIL21,5942.08–

3037Sierra County, NMNM11,3952.07–

3038Towner County, NDND2,0402.07–

3039Curry County, OROR22,6212.07–

3040Rush County, KSKS2,8452.07–

3041Divide County, NDND2,1102.06–

3042Barnes County, NDND10,5732.06–

3043Llano County, TXTX23,3532.06–

3044Coles County, ILIL46,6072.06–

3045Morris County, KSKS5,3482.06–

3046Tompkins County, NYNY104,0472.06–

3047Yukon-Koyukuk Census Area, AKAK5,0282.05–

3048Lane County, KSKS1,5082.05–

3049Iron County, MIMI11,7572.05–

3050Schoolcraft County, MIMI8,1872.05–

3051Cook County, MNMN5,5222.05–

3052Slope County, NDND6282.05–

3053Jackson County, COCO1,2112.05–

3054McDonough County, ILIL25,9162.05–

3055McCone County, MTMT1,7202.04–

3056Macon County, NCNC39,2322.04–

3057Hettinger County, NDND2,4922.04–

3058Pierce County, NDND3,8382.04–

3059Ramsey County, NDND11,5302.04–

3060Grant County, OROR7,0752.04–

3061Alexandria, VAVA160,6622.04–

3062Sawyer County, WIWI18,8462.04–

3063Mackinac County, MIMI11,2362.03–

3064Roscommon County, MIMI23,9142.03–

3065Kidder County, NDND2,3932.03–

3066Menard County, TXTX1,9562.03–

3067East Carroll Parish, LALA6,7602.03–

3068Towns County, GAGA13,2852.03–

3069Comanche County, KSKS1,6732.03–

3070Treasure County, MTMT7282.03–

3071Esmeralda County, NVNV7292.03–

3072San Juan County, WAWA18,5772.03–

3073Sumter County, ALAL11,5882.02–

3074Petroleum County, MTMT5482.02–

3075Garden County, NENE1,8042.02–

3076Baca County, COCO3,3472.02–

3077Piscataquis County, MEME17,4092.02–

3078Coke County, TXTX3,4122.02–

3079Jefferson County, WAWA33,9702.02–

3080Decatur County, KSKS2,7162.01–

3081Daniels County, MTMT1,6122.01–

3082Keith County, NENE8,1002.01–

3083Lincoln County, NMNM19,8442.01–

3084Adams County, NDND2,2752.01–

3085Door County, WIWI30,6162.01–

3086Gogebic County, MIMI14,2852.00–

3087Hamilton County, NYNY5,0062.00–

3088New York County, NYNY1,664,8622.00–

3089McIntosh County, NDND2,4512.00–

3090Dickinson County, IAIA18,0772.00–

3091Mariposa County, CACA16,9181.99–

3092Park County, COCO18,3141.99–

3093Hyde County, NCNC4,5541.99–

3094McPherson County, SDSD2,3471.99–

3095District of Columbia, DCDC693,6451.99–

3096Trego County, KSKS2,7401.99–

3097Cameron County, PAPA4,2111.98–

3098Deer Lodge County, MTMT9,7091.97–

3099Catron County, NMNM3,8271.97–

3100Aransas County, TXTX26,1461.97–

3101Graham County, KSKS2,3711.97–

3102Lexington, VAVA7,7691.97–

3103Presque Isle County, MIMI13,1281.96–

3104Koochiching County, MNMN11,5871.96–

3105Clear Creek County, COCO8,9941.96–

3106Hinsdale County, COCO7531.96–

3107Iron County, WIWI6,1271.96–

3108Custer County, SDSD9,4311.95–

3109Custer County, COCO5,5901.95–

3110Alcona County, MIMI10,5561.94–

3111Tyrrell County, NCNC3,5371.94–

3112Dolores County, COCO2,4661.94–

3113Ouray County, COCO5,2651.94–

3114Quay County, NMNM8,4541.93–

3115Saguache County, COCO6,7321.93–

3116Sumter County, FLFL157,7721.93–

3117Montmorency County, MIMI9,8421.92–

3118St. Louis, MOMO278,1441.92–

3119Fall River County, SDSD7,4671.92–

3120Jeff Davis County, TXTX1,7111.92–

3121Yakutat, AKAK6721.91–

3122Sheridan County, NDND1,2961.91–

3123De Baca County, NMNM1,6471.90–

3124King County, TXTX1921.90–

3125Chaffee County, COCO20,8311.90–

3126Eddy County, NDND2,3291.89–

3127Gunnison County, COCO17,4391.89–

3128Mineral County, COCO9101.88–

3129Keweenaw County, MIMI2,1861.87–

3130Lancaster County, VAVA10,9951.87–

3131Hooker County, NENE6861.86–

3132Thomas County, NENE6391.86–

3133Gilpin County, COCO6,0731.86–

3134La Paz County, AZAZ16,7111.85–

3135Terrell County, TXTX7021.85–

3136Ontonagon County, MIMI5,8231.84–

3137Pitkin County, COCO16,6251.83–

3138Brewster County, TXTX9,4581.82–

3139Niobrara County, WYWY2,3411.81–

3140San Juan County, COCO8131.81–

3141Issaquena County, MSMS1,2631.75–

3142San Miguel County, COCO7,7531.73–

3143Loving County, TXTX521.22–

3144Kalawao County, HIHI821.15–

SHOWING 3,001–3,144 OF 3,144

1 2 3 4 5 6 7

Download CSV (full list, 3,144 rows)

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