Which county has the highest total population?

Los Angeles County, California ranks #1 with 9,818,605 (2010 Decennial Census).

What are the top 5 counties by total population?

Los Angeles County, California, Cook County, Illinois, Harris County, Texas, Maricopa County, Arizona, San Diego County, California.

How many counties are in this ranking?

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

How is total population measured?

Total resident population. Source: US Census Bureau, 2010 Decennial Census.

RANKING · 2010 CENSUS · 131 SHOWN OF 3,131

Largest by population, US counties · 2010

The most populous US counties as of the 2010 population estimates.

All statesAll rankings

SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2025

RANKPLACESTATETOTAL POPULATIONVS 2000

3001McPherson County, SDSD2,459−15%

3002Dickens County, TXTX2,444−12%

3003Kidder County, NDND2,435−12%

3004Griggs County, NDND2,420−12%

3005Culberson County, TXTX2,398−19%

3006Grant County, NDND2,394−16%

3007Miner County, SDSD2,389−17%

3008Eddy County, NDND2,385−13%

3009Sedgwick County, COCO2,379−13%

3010Wrangell, AKAK2,369–

3011Faulk County, SDSD2,364−10%

3012Sanborn County, SDSD2,355−12%

3013Adams County, NDND2,343−10%

3014Jeff Davis County, TXTX2,342+6%

3015Liberty County, MTMT2,339+8%

3016Potter County, SDSD2,329−14%

3017Highland County, VAVA2,321−8%

3018Robertson County, KYKY2,282+1%

3019Garfield County, WAWA2,266−5%

3020Rich County, UTUT2,264+15%

3021Towner County, NDND2,246−22%

3022Menard County, TXTX2,242−5%

3023Stanton County, KSKS2,235−7%

3024Wichita County, KSKS2,234−12%

3025Clark County, KSKS2,215−7%

3026Worth County, MOMO2,171−9%

3027Wheatland County, MTMT2,168−4%

3028Keweenaw County, MIMI2,156−6%

3029Hoonah-Angoon Census Area, AKAK2,150–

3030Boyd County, NENE2,099−14%

3031Judith Basin County, MTMT2,072−11%

3032Divide County, NDND2,071−9%

3033Jerauld County, SDSD2,071−10%

3034Dolores County, COCO2,064+12%

3035Garden County, NENE2,057−10%

3036Oldham County, TXTX2,052−6%

3037Garfield County, NENE2,049+8%

3038Mellette County, SDSD2,048−2%

3039Gosper County, NENE2,044−5%

3040De Baca County, NMNM2,022−10%

3041Dundy County, NENE2,008−12%

3042Edwards County, TXTX2,002−7%

3043Logan County, NDND1,990−14%

3044Eureka County, NVNV1,987+20%

3045Steele County, NDND1,975−13%

3046Burke County, NDND1,968−12%

3047Deuel County, NENE1,941−7%

3048Haakon County, SDSD1,937−12%

3049Hodgeman County, KSKS1,916−8%

3050Buffalo County, SDSD1,912−6%

3051Armstrong County, TXTX1,901−11%

3052Meagher County, MTMT1,891−2%

3053Comanche County, KSKS1,891−4%

3054Gilliam County, OROR1,871−2%

3055Oliver County, NDND1,846−11%

3056Cheyenne County, COCO1,836−18%

3057Denali, AKAK1,826−4%

3058Sherman County, OROR1,765−9%

3059Daniels County, MTMT1,751−13%

3060Lane County, KSKS1,750−19%

3061Powder River County, MTMT1,743−6%

3062McCone County, MTMT1,734−12%

3063Taliaferro County, GAGA1,717−17%

3064Golden Valley County, NDND1,680−13%

3065Throckmorton County, TXTX1,641−11%

3066Briscoe County, TXTX1,637−9%

3067Lake and Peninsula, AKAK1,631−11%

3068Irion County, TXTX1,599−10%

3069Piute County, UTUT1,556+8%

3070Rock County, NENE1,526−13%

3071Cottle County, TXTX1,505−21%

3072Stonewall County, TXTX1,490−12%

3073Wallace County, KSKS1,485−15%

3074Campbell County, SDSD1,466−18%

3075Wheeler County, OROR1,441−7%

3076Hyde County, SDSD1,420−15%

3077Issaquena County, MSMS1,406−38%

3078Kiowa County, COCO1,398−14%

3079Jackson County, COCO1,394−12%

3080Sully County, SDSD1,373−12%

3081Foard County, TXTX1,336−18%

3082Sheridan County, NDND1,321−23%

3083Sioux County, NENE1,311−11%

3084Harding County, SDSD1,255−7%

3085Greeley County, KSKS1,247−19%

3086Glasscock County, TXTX1,226−13%

3087Motley County, TXTX1,210−15%

3088Garfield County, MTMT1,206−6%

3089Prairie County, MTMT1,179−2%

3090Alpine County, CACA1,175−3%

3091Carter County, MTMT1,160−15%

3092Sterling County, TXTX1,143−18%

3093Camas County, IDID1,117+13%

3094Daggett County, UTUT1,059+15%

3095Wibaux County, MTMT1,017−5%

3096Jones County, SDSD1,006−16%

3097Bristol Bay, AKAK997−21%

3098Terrell County, TXTX984−9%

3099Clark County, IDID982−4%

3100Skagway, AKAK968–

3101Hayes County, NENE967−9%

3102Roberts County, TXTX929+5%

3103Golden Valley County, MTMT884−15%

3104Hinsdale County, COCO843+7%

3105Keya Paha County, NENE824−16%

3106Wheeler County, NENE818−8%

3107Kent County, TXTX808−6%

3108Billings County, NDND783−12%

3109Esmeralda County, NVNV783−19%

3110Logan County, NENE763−1%

3111Hooker County, NENE736−6%

3112Slope County, NDND727−5%

3113Treasure County, MTMT718−17%

3114Mineral County, COCO712−14%

3115McMullen County, TXTX707−17%

3116San Juan County, COCO699+25%

3117Harding County, NMNM695−14%

3118Banner County, NENE690−16%

3119Yakutat, AKAK662−18%

3120Thomas County, NENE647−11%

3121Borden County, TXTX641−12%

3122Loup County, NENE632−11%

3123Grant County, NENE614−18%

3124McPherson County, NENE539+1%

3125Petroleum County, MTMT494+0%

3126Blaine County, NENE478−18%

3127Arthur County, NENE460+4%

3128Kenedy County, TXTX416+0%

3129King County, TXTX286−20%

3130Kalawao County, HIHI90−39%

3131Loving County, TXTX82+22%

SHOWING 3,001–3,131 OF 3,131

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS