Which county has the highest average household size?

North Slope, Alaska ranks #1 with 4.47 (2010 American Community Survey).

What are the top 5 counties by average household size?

North Slope, Alaska, McKinley County, New Mexico, Sioux County, North Dakota, Bethel Census Area, Alaska, Northwest Arctic, Alaska.

How many counties are in this ranking?

3,131 counties qualify after filtering for population minimums and data availability. The ranking covers 2010 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 (2010).

RANKING · 2010 CENSUS · 131 SHOWN OF 3,131

Largest households, US counties · 2010

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

3001Lake County, OROR8,1872.16–

3002Rooks County, KSKS4,6462.16–

3003Greer County, OKOK5,3732.16–

3004Pacific County, WAWA24,3572.16–

3005Iron County, MIMI11,7572.15–

3006Swift County, MNMN9,7632.15–

3007Coos County, NHNH31,3432.15–

3008Dare County, NCNC38,2452.15–

3009Comanche County, KSKS1,6732.15–

3010Norton County, KSKS5,2882.15–

3011Koochiching County, MNMN11,5872.14–

3012Traverse County, MNMN3,1302.14–

3013Keya Paha County, NENE7922.14–

3014Nelson County, NDND2,9632.14–

3015Towner County, NDND2,0402.14–

3016Curry County, OROR22,6212.14–

3017Harney County, OROR7,3802.14–

3018Kingsbury County, SDSD5,2842.14–

3019Clay County, TNTN7,8212.14–

3020Danville, VAVA41,6472.14–

3021Edwards County, KSKS2,6402.14–

3022Hot Springs County, WYWY4,6002.14–

3023Hickory County, MOMO9,0442.13–

3024Musselshell County, MTMT5,5822.13–

3025Hooker County, NENE6862.13–

3026Johnson County, NENE5,2182.13–

3027Logan County, NENE6692.13–

3028LaMoure County, NDND4,1352.13–

3029Jeff Davis County, TXTX1,7112.13–

3030Russell County, KSKS6,5812.13–

3031Lexington, VAVA7,7692.13–

3032Daniels County, MTMT1,6122.12–

3033Tyrrell County, NCNC3,5372.12–

3034Hettinger County, NDND2,4922.12–

3035McHenry County, NDND5,1302.12–

3036Perkins County, SDSD2,8532.12–

3037Highland County, VAVA2,3182.12–

3038Jackson County, COCO1,2112.12–

3039District of Columbia, DCDC693,6452.12–

3040Calhoun County, IAIA9,5622.12–

3041Woodson County, KSKS3,1182.12–

3042Petroleum County, MTMT5482.11–

3043Gregory County, SDSD4,0372.11–

3044Arlington County, VAVA243,9312.11–

3045Brewster County, TXTX9,4582.11–

3046Deuel County, NENE1,8622.10–

3047Kidder County, NDND2,3932.10–

3048Custer County, SDSD9,4312.10–

3049Adams County, WIWI21,7522.10–

3050Bayfield County, WIWI16,7872.10–

3051Cape May County, NJNJ93,3902.10–

3052Custer County, COCO5,5902.10–

3053Smith County, KSKS3,5662.10–

3054Staunton, VAVA26,8012.10–

3055Marinette County, WIWI42,5742.10–

3056New York County, NYNY1,664,8622.09–

3057Watauga County, NCNC54,7862.09–

3058Kent County, TXTX6742.09–

3059Price County, WIWI13,9882.09–

3060Barber County, KSKS4,0832.09–

3061McDonough County, ILIL25,9162.09–

3062Elk County, KSKS2,4582.09–

3063Williamsburg, VAVA15,8612.09–

3064Washburn County, WIWI17,0872.09–

3065Granite County, MTMT3,6582.08–

3066Lincoln County, MTMT22,3282.08–

3067Adams County, NDND2,2752.08–

3068Pierce County, NDND3,8382.08–

3069Alexandria, VAVA160,6622.08–

3070Burnett County, WIWI17,2232.08–

3071Gogebic County, MIMI14,2852.07–

3072Schuyler County, MOMO4,1402.07–

3073Wheeler County, OROR1,4722.07–

3074Logan County, KSKS2,6612.07–

3075Pawnee County, NENE2,5102.06–

3076Alleghany County, NCNC11,4792.06–

3077Lawrence County, SDSD29,4592.06–

3078Lancaster County, VAVA10,9952.06–

3079Golden Valley County, NDND1,8082.06–

3080Mineral County, COCO9102.06–

3081Rush County, KSKS2,8452.06–

3082Ontonagon County, MIMI5,8232.05–

3083Aitkin County, MNMN16,2522.05–

3084Lake County, MNMN10,7462.05–

3085Macon County, NCNC39,2322.05–

3086Sawyer County, WIWI18,8462.05–

3087Grant County, NDND2,2062.04–

3088Fremont County, COCO50,0392.04–

3089Door County, WIWI30,6162.04–

3090Sheridan County, NDND1,2962.03–

3091Wells County, NDND3,7292.03–

3092Gilliam County, OROR1,9712.03–

3093McIntosh County, NDND2,4512.03–

3094Republic County, KSKS4,6402.03–

3095Oneida County, WIWI38,1312.03–

3096Vilas County, WIWI23,7612.03–

3097Hoonah-Angoon Census Area, AKAK2,2712.02–

3098Hamilton County, NYNY5,0062.02–

3099Gilpin County, COCO6,0732.02–

3100Dickinson County, IAIA18,0772.02–

3101Lyon County, KYKY9,1232.02–

3102Jefferson County, WAWA33,9702.02–

3103Plumas County, CACA18,5832.01–

3104Bottineau County, NDND6,2842.01–

3105Buckingham County, VAVA17,1372.01–

3106Cook County, MNMN5,5222.00–

3107Mineral County, NVNV4,4072.00–

3108Catron County, NMNM3,8272.00–

3109Woods County, OKOK8,4432.00–

3110Sumter County, FLFL157,7722.00–

3111Towns County, GAGA13,2852.00–

3112Garden County, NENE1,8041.99–

3113La Paz County, AZAZ16,7111.98–

3114Burke County, NDND2,1321.98–

3115Pawnee County, KSKS5,9911.98–

3116Divide County, NDND2,1101.97–

3117Madison County, MTMT10,0261.97–

3118Huerfano County, COCO7,0111.97–

3119Sheridan County, MTMT3,4361.95–

3120Galax, VAVA6,6701.95–

3121San Juan County, WAWA18,5771.94–

3122Iron County, WIWI6,1271.94–

3123Deer Lodge County, MTMT9,7091.92–

3124Fall River County, SDSD7,4671.92–

3125Hinsdale County, COCO7531.92–

3126Decatur County, KSKS2,7161.91–

3127Karnes County, TXTX15,0181.91–

3128Loving County, TXTX521.86–

3129San Juan County, COCO8131.83–

3130Esmeralda County, NVNV7291.76–

3131Kalawao County, HIHI821.10–

SHOWING 3,001–3,131 OF 3,131

1 2 3 4 5 6 7

Download CSV (full list, 3,131 rows)

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