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 (2024 ACS).

All statesAll rankings

SAME RANKING BYCities States Metros ZIP codes

YEAR2010 2020 2024

RANKPLACESTATEPOPAVERAGE HOUSEHOLD SIZEVS 2010

3001▲93Audubon County, IAIA5,5092.11−5%

3002▼1,765Jefferson County, IAIA15,2912.11−8%

3003▼675Chase County, KSKS2,5722.11−12%

3004▼355Mitchell County, KSKS5,5902.11−10%

3005▼4Cheyenne County, NENE9,5282.11−8%

3006▼2,322Perry County, ALAL7,4252.10−18%

3007▼219Charlevoix County, MIMI26,0362.10−7%

3008▼1,042Oktibbeha County, MSMS51,8962.10−12%

3009▲103Mora County, NMNM4,0512.10−23%

3010▼276Northampton County, NCNC16,4912.10−19%

3011▼55Essex County, VTVT6,0512.10−6%

3012▼1,074Richmond, VAVA237,2572.10−9%

3013▼1,322Denver County, COCO740,6132.10−6%

3014▲95Vilas County, WIWI23,7612.10+3%

3015▼358Baraga County, MIMI8,1692.09−13%

3016▼61Stutsman County, NDND21,4142.09−5%

3017▲18Florence County, WIWI4,7482.09−5%

3018▼1,152Grand County, COCO16,4962.09−23%

3019▲80Las Animas County, COCO14,3912.09−13%

3020▼93Phillips County, KSKS4,7282.09−8%

3021▼77Kent County, MDMD19,5652.09−13%

3022▼1,656Wrangell, AKAK2,0072.08−11%

3023▲26Emmons County, NDND3,2152.08−5%

3024▼10Grant County, NDND2,2062.08+2%

3025▼1,311Lake of the Woods County, MNMN3,7702.08−10%

3026▼1,187Tishomingo County, MSMS18,6392.08−17%

3027▲49Park County, MTMT18,2142.08−5%

3028▼298Nuckolls County, NENE4,1002.08−6%

3029▼24Coos County, NHNH31,3432.08−3%

3030▲1Wheeler County, OROR1,4722.080%

3031▼360Allendale County, SCSC7,3552.08−21%

3032▼75Arlington County, VAVA243,9312.08−1%

3033▼356Albany County, WYWY38,5582.08−6%

3034▼261Cape May County, NJNJ93,3902.08−1%

3035▼979Teller County, COCO24,7562.08−17%

3036▼27Jo Daviess County, ILIL21,5942.08−7%

3037▲73Sierra County, NMNM11,3952.07−16%

3038▲82Towner County, NDND2,0402.07−3%

3039▼20Curry County, OROR22,6212.07−3%

3040▲67Rush County, KSKS2,8452.070%

3041▲17Divide County, NDND2,1102.06+5%

3042▲62Barnes County, NDND10,5732.06−6%

3043▼836Llano County, TXTX23,3532.06−7%

3044▼366Coles County, ILIL46,6072.06−6%

3045▼761Morris County, KSKS5,3482.06−8%

3046▼155Tompkins County, NYNY104,0472.06−9%

3047▼2,336Yukon-Koyukuk Census Area, AKAK5,0282.05−21%

3048▲12Lane County, KSKS1,5082.05−6%

3049▼21Iron County, MIMI11,7572.05−5%

3050▼120Schoolcraft County, MIMI8,1872.05−10%

3051▲24Cook County, MNMN5,5222.05+2%

3052▼855Slope County, NDND6282.05−8%

3053▲21Jackson County, COCO1,2112.05−3%

3054▼677McDonough County, ILIL25,9162.05−2%

3055▼262McCone County, MTMT1,7202.04−17%

3056▼159Macon County, NCNC39,2322.040%

3057▼82Hettinger County, NDND2,4922.04−4%

3058▼66Pierce County, NDND3,8382.04−2%

3059▼362Ramsey County, NDND11,5302.04−12%

3060▲27Grant County, OROR7,0752.04−7%

3061▼231Alexandria, VAVA160,6622.04−2%

3062▲11Sawyer County, WIWI18,8462.040%

3063▲38Mackinac County, MIMI11,2362.03−9%

3064▼14Roscommon County, MIMI23,9142.03−6%

3065▼238Kidder County, NDND2,3932.03−3%

3066▲32Menard County, TXTX1,9562.03−12%

3067▼1,785East Carroll Parish, LALA6,7602.03−22%

3068▼208Towns County, GAGA13,2852.03+1%

3069▼6Comanche County, KSKS1,6732.03−6%

3070▲63Treasure County, MTMT7282.03−24%

3071▲37Esmeralda County, NVNV7292.03+15%

3072▲39San Juan County, WAWA18,5772.03+5%

3073▼256Sumter County, ALAL11,5882.02−27%

3074▼228Petroleum County, MTMT5482.02−4%

3075▲14Garden County, NENE1,8042.02+2%

3076▲14Baca County, COCO3,3472.02−9%

3077▼591Piscataquis County, MEME17,4092.02−7%

3078▲37Coke County, TXTX3,4122.02−17%

3079▼14Jefferson County, WAWA33,9702.020%

3080▲36Decatur County, KSKS2,7162.01+5%

3081▲38Daniels County, MTMT1,6122.01−5%

3082▼21Keith County, NENE8,1002.01−8%

3083▼581Lincoln County, NMNM19,8442.01−13%

3084▼44Adams County, NDND2,2752.01−3%

3085▲3Door County, WIWI30,6162.01−1%

3086▲14Gogebic County, MIMI14,2852.00−3%

3087▼2,968Hamilton County, NYNY5,0062.00−1%

3088▼36New York County, NYNY1,664,8622.00−4%

3089▲43McIntosh County, NDND2,4512.00−1%

3090▲5Dickinson County, IAIA18,0772.00−1%

3091▼32Mariposa County, CACA16,9181.99−13%

3092▼2,279Park County, COCO18,3141.99−9%

3093▼294Hyde County, NCNC4,5541.99−11%

3094▼211McPherson County, SDSD2,3471.99−16%

3095▼620District of Columbia, DCDC693,6451.99−6%

3096Trego County, KSKS2,7401.99−13%

3097▲32Cameron County, PAPA4,2111.98−16%

3098▼1Deer Lodge County, MTMT9,7091.97+3%

3099▼338Catron County, NMNM3,8271.97−2%

3100▼1,172Aransas County, TXTX26,1461.97−14%

3101▲26Graham County, KSKS2,3711.97−14%

3102▼19Lexington, VAVA7,7691.97−8%

3103▼99Presque Isle County, MIMI13,1281.96−9%

3104▼53Koochiching County, MNMN11,5871.96−8%

3105▼164Clear Creek County, COCO8,9941.96−10%

3106▼61Hinsdale County, COCO7531.96+2%

3107▲21Iron County, WIWI6,1271.96+1%

3108▼228Custer County, SDSD9,4311.95−7%

3109▼146Custer County, COCO5,5901.95−7%

3110▼19Alcona County, MIMI10,5561.94−20%

3111▲15Tyrrell County, NCNC3,5371.94−8%

3112▼33Dolores County, COCO2,4661.94−24%

3113▼192Ouray County, COCO5,2651.94−24%

3114▼2,159Quay County, NMNM8,4541.93−17%

3115▼1,112Saguache County, COCO6,7321.93−13%

3116▼36Sumter County, FLFL157,7721.93−4%

3117▼32Montmorency County, MIMI9,8421.92−15%

3118▼51St. Louis, MOMO278,1441.92−12%

3119▼47Fall River County, SDSD7,4671.920%

3120▼292Jeff Davis County, TXTX1,7111.92−10%

3121▼1,222Yakutat, AKAK6721.91−23%

3122▲9Sheridan County, NDND1,2961.91−6%

3123▼3,105De Baca County, NMNM1,6471.90−16%

3124▼3,023King County, TXTX1921.90−18%

3125▼163Chaffee County, COCO20,8311.90−13%

3126▼78Eddy County, NDND2,3291.89−20%

3127▼1,073Gunnison County, COCO17,4391.89−16%

3128▼146Mineral County, COCO9101.88−9%

3129▼5Keweenaw County, MIMI2,1861.87−16%

3130▼25Lancaster County, VAVA10,9951.87−9%

3131▼199Hooker County, NENE6861.86−13%

3132▼141Thomas County, NENE6391.86−18%

3133▼97Gilpin County, COCO6,0731.86−8%

3134▼121La Paz County, AZAZ16,7111.85−7%

3135▼220Terrell County, TXTX7021.85−19%

3136▼50Ontonagon County, MIMI5,8231.84−10%

3137▼1,198Pitkin County, COCO16,6251.83−17%

3138▼141Brewster County, TXTX9,4581.82−14%

3139▼874Niobrara County, WYWY2,3411.81−21%

3140▼253San Juan County, COCO8131.81−1%

3141▼24Issaquena County, MSMS1,2631.75−43%

3142▼460San Miguel County, COCO7,7531.73−23%

3143▼13Loving County, TXTX521.22−34%

3144▼9Kalawao County, HIHI821.15+5%

SHOWING 3,001–3,144 OF 3,144

1 2 3 4 5 6 7

Download CSV (full list, 3,144 rows)

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES