Which county has the highest total population?

Los Angeles County, California ranks #1 with 9,519,338 (2000 American Community Survey).

What are the top 5 counties by total population?

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

How many counties are in this ranking?

3,125 counties qualify after filtering for population minimums and data availability. The ranking covers 2000 ACS 5-year data.

How is total population measured?

Total resident population. Source: US Census Bureau, American Community Survey 5-year estimates (2000).

RANKING · 2000 CENSUS · 125 SHOWN OF 3,125

Largest by population, US counties · 2000

The most populous us counties as of the 2023 estimates.

All statesAll rankings

SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPTOTAL POPULATIONVS 2000

3001Hamilton County, KSKS2,5002,670+0%

3002Faulk County, SDSD2,1782,640+0%

3003Renville County, NDND2,3312,610+0%

3004Quitman County, GAGA2,2542,598+0%

3005Adams County, NDND2,2752,593+0%

3006Glascock County, GAGA3,1412,556+0%

3007Highland County, VAVA2,3182,536+0%

3008Wichita County, KSKS2,0312,531+0%

3009Ziebach County, SDSD2,3892,519+0%

3010Wayne County, UTUT2,5872,509+0%

3011Boyd County, NENE1,6742,438+0%

3012Niobrara County, WYWY2,3412,407+0%

3013Stanton County, KSKS1,9862,406+0%

3014Garfield County, WAWA2,4162,397+0%

3015Haines, AKAK2,0682,392+0%

3016Webster County, GAGA2,3692,390+0%

3017Clark County, KSKS1,9002,390+0%

3018Worth County, MOMO1,9142,382+0%

3019Menard County, TXTX1,9562,360+0%

3020Judith Basin County, MTMT2,1622,329+0%

3021Logan County, NDND1,8592,308+0%

3022Keweenaw County, MIMI2,1862,301+0%

3023Jerauld County, SDSD1,6542,295+0%

3024Dundy County, NENE1,5682,292+0%

3025Garden County, NENE1,8042,292+0%

3026Divide County, NDND2,1102,283+0%

3027Issaquena County, MSMS1,2632,274+0%

3028Robertson County, KYKY2,3252,266+0%

3029Wheatland County, MTMT2,1002,259+0%

3030Steele County, NDND1,7972,258+0%

3031Burke County, NDND2,1322,242+0%

3032De Baca County, NMNM1,6472,240+0%

3033Cheyenne County, COCO1,7132,231+0%

3034Jeff Davis County, TXTX1,7112,207+0%

3035Haakon County, SDSD1,8022,196+0%

3036Oldham County, TXTX1,7832,185+0%

3037Edwards County, TXTX1,3702,162+0%

3038Liberty County, MTMT1,9572,158+0%

3039Lane County, KSKS1,5082,155+0%

3040Armstrong County, TXTX1,8432,148+0%

3041Gosper County, NENE1,8032,143+0%

3042Deuel County, NENE1,8622,098+0%

3043Hodgeman County, KSKS1,6192,085+0%

3044Mellette County, SDSD2,1372,083+0%

3045Taliaferro County, GAGA1,6622,077+0%

3046Oliver County, NDND1,8982,065+0%

3047Buffalo County, SDSD1,8022,032+0%

3048Daniels County, MTMT1,6122,017+0%

3049McCone County, MTMT1,7201,977+0%

3050Comanche County, KSKS1,6731,967+0%

3051Rich County, UTUT2,6871,961+0%

3052Sherman County, OROR2,0511,934+0%

3053Meagher County, MTMT2,1371,932+0%

3054Golden Valley County, NDND1,8081,924+0%

3055Gilliam County, OROR1,9711,915+0%

3056Cottle County, TXTX1,2241,904+0%

3057Garfield County, NENE1,7101,902+0%

3058Denali, AKAK1,6161,893+0%

3059Powder River County, MTMT1,7811,858+0%

3060Throckmorton County, TXTX1,5541,850+0%

3061Dolores County, COCO2,4661,844+0%

3062Lake and Peninsula, AKAK1,3571,823+0%

3063Briscoe County, TXTX1,4741,790+0%

3064Campbell County, SDSD1,3771,782+0%

3065Irion County, TXTX1,4631,771+0%

3066Rock County, NENE1,2591,756+0%

3067Wallace County, KSKS1,4411,749+0%

3068Sheridan County, NDND1,2961,710+0%

3069Stonewall County, TXTX1,1861,693+0%

3070Hyde County, SDSD1,1911,671+0%

3071Eureka County, NVNV1,8671,651+0%

3072Kiowa County, COCO1,4121,622+0%

3073Foard County, TXTX1,0441,622+0%

3074Jackson County, COCO1,2111,577+0%

3075Sully County, SDSD1,4791,556+0%

3076Wheeler County, OROR1,4721,547+0%

3077Greeley County, KSKS1,1821,534+0%

3078Sioux County, NENE1,1881,475+0%

3079Piute County, UTUT1,5091,435+0%

3080Motley County, TXTX1,0431,426+0%

3081Glasscock County, TXTX1,1281,406+0%

3082Sterling County, TXTX1,3491,393+0%

3083Carter County, MTMT1,3831,360+0%

3084Harding County, SDSD1,3311,353+0%

3085Garfield County, MTMT1,1481,279+0%

3086Bristol Bay, AKAK8471,258+0%

3087Alpine County, CACA1,0431,208+0%

3088Prairie County, MTMT1,1121,199+0%

3089Jones County, SDSD9131,193+0%

3090Terrell County, TXTX7021,081+0%

3091Wibaux County, MTMT8851,068+0%

3092Hayes County, NENE8211,068+0%

3093Golden Valley County, MTMT8441,042+0%

3094Clark County, IDID7831,022+0%

3095Camas County, IDID1,316991+0%

3096Keya Paha County, NENE792983+0%

3097Esmeralda County, NVNV729971+0%

3098Daggett County, UTUT934921+0%

3099Billings County, NDND1,071888+0%

3100Roberts County, TXTX867887+0%

3101Wheeler County, NENE789886+0%

3102Treasure County, MTMT728861+0%

3103Kent County, TXTX674859+0%

3104McMullen County, TXTX544851+0%

3105Mineral County, COCO910831+0%

3106Banner County, NENE686819+0%

3107Harding County, NMNM617810+0%

3108Yakutat, AKAK672808+0%

3109Hinsdale County, COCO753790+0%

3110Hooker County, NENE686783+0%

3111Logan County, NENE669774+0%

3112Slope County, NDND628767+0%

3113Grant County, NENE561747+0%

3114Thomas County, NENE639729+0%

3115Borden County, TXTX567729+0%

3116Loup County, NENE570712+0%

3117Blaine County, NENE458583+0%

3118San Juan County, COCO813558+0%

3119McPherson County, NENE369533+0%

3120Petroleum County, MTMT548493+0%

3121Arthur County, NENE396444+0%

3122Kenedy County, TXTX319414+0%

3123King County, TXTX192356+0%

3124Kalawao County, HIHI82147+0%

3125Loving County, TXTX5267+0%

SHOWING 3,001–3,125 OF 3,125

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Download CSV (full list, 3,125 rows)

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