Which county has the highest population growth?

McKenzie County, North Dakota ranks #1 with +131.2% (2020 Decennial Census).

What are the top 5 counties by population growth?

McKenzie County, North Dakota, Williams County, North Dakota, Hays County, Texas, Dallas County, Iowa, Comal County, Texas.

How many counties are in this ranking?

3,131 counties qualify after filtering for population minimums and data availability. The ranking covers 2020 Decennial Census data.

How is population growth measured?

Percent change in population from the prior decennial census. Source: US Census Bureau, 2020 Decennial Census.

RANKING · 2020 CENSUS · 131 SHOWN OF 3,131

Fastest growing, US counties · 2020

US counties ranked by population growth from the 2010 census to 2020.

Flip the list · Fastest shrinking, US counties →

All statesAll rankings

SAME RANKING BYCities States Metros

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

3001McDowell County, WVWV16,878-13.6%−39%

3002Coleman County, TXTX7,915-13.6%+178%

3003Woodruff County, ARAR5,710-13.7%+67%

3004Greene County, ILIL11,313-13.7%+277%

3005Boyd County, NENE1,674-13.8%−2%

3006Greeley County, NENE2,154-13.8%+42%

3007Dimmit County, TXTX8,024-13.8%+679%

3008Smith County, MSMS13,991-13.8%−248%

3009Elk County, KSKS2,458-13.8%+598%

3010Ziebach County, SDSD2,389-13.9%−203%

3011Lee County, SCSC15,730-14.0%−253%

3012Hickory County, MOMO9,044-14.0%−164%

3013Holt County, MOMO4,200-14.0%+24%

3014Kemper County, MSMS8,600-14.0%−1599%

3015Adair County, OKOK19,828-14.1%−199%

3016Gates County, NCNC10,234-14.1%−208%

3017Cumberland County, KYKY5,992-14.1%−364%

3018Crisp County, GAGA19,237-14.1%−242%

3019Summers County, WVWV11,532-14.1%+67%

3020Mora County, NMNM4,051-14.2%−166%

3021Ontonagon County, MIMI5,823-14.2%+22%

3022Clay County, WVWV7,538-14.2%−509%

3023Marion County, GAGA7,676-14.2%−151%

3024Hardeman County, TXTX3,292-14.3%+35%

3025Monroe County, ALAL18,965-14.3%−1062%

3026Braxton County, WVWV11,885-14.3%−209%

3027Kit Carson County, COCO7,069-14.3%−217%

3028Oldham County, TXTX1,783-14.3%+251%

3029Pemiscot County, MOMO14,465-14.4%+68%

3030Catahoula Parish, LALA8,223-14.4%+1001%

3031DeKalb County, MOMO9,795-14.5%−188%

3032Bollinger County, MOMO10,646-14.5%−209%

3033Greene County, ALAL7,067-14.5%+725%

3034Hidalgo County, NMNM3,929-14.6%+3253%

3035Jeff Davis County, TXTX1,711-14.8%−210%

3036Gilmer County, WVWV7,085-14.8%+123%

3037Owsley County, KYKY3,932-14.8%+319%

3038Sublette County, WYWY8,929-14.8%−167%

3039Harmon County, OKOK2,327-14.9%+10%

3040Chattahoochee County, GAGA8,465-15.1%+25%

3041McMullen County, TXTX544-15.1%−464%

3042Crosby County, TXTX4,852-15.3%+381%

3043Latimer County, OKOK9,645-15.3%−541%

3044Bristol Bay, AKAK847-15.3%+42%

3045Douglas County, MOMO12,342-15.4%−251%

3046Newton County, TXTX11,954-15.4%−239%

3047Hardin County, ILIL3,588-15.5%+107%

3048Buchanan County, VAVA18,492-15.5%+12%

3049Pulaski County, ILIL4,820-15.7%+575%

3050Bertie County, NCNC17,086-15.7%+422%

3051Hall County, TXTX2,737-15.7%+400%

3052Pope County, ILIL3,672-15.8%−1829%

3053Lincoln County, NVNV4,320-15.8%−253%

3054Kenedy County, TXTX319-15.9%+59%

3055Bladen County, NCNC30,007-15.9%−226%

3056West Carroll Parish, LALA9,156-16.0%−974%

3057Bell County, KYKY22,829-16.0%+249%

3058De Baca County, NMNM1,647-16.0%+2907%

3059Webster County, GAGA2,369-16.1%−387%

3060Red River Parish, LALA7,165-16.2%−746%

3061Floyd County, TXTX4,881-16.2%+90%

3062Liberty County, MTMT1,957-16.2%+172%

3063Stonewall County, TXTX1,186-16.4%+3%

3064Morton County, KSKS2,470-16.5%−3679%

3065McDonough County, ILIL25,916-16.5%+149%

3066Talbot County, GAGA5,709-16.5%+4038%

3067Duval County, TXTX9,402-16.6%−1159%

3068Monroe County, ARAR6,244-16.6%+74%

3069Real County, TXTX2,745-16.7%−163%

3070Baker County, GAGA2,725-16.7%−231%

3071Crockett County, TXTX2,769-16.7%−3343%

3072Shannon County, MOMO7,285-16.7%−279%

3073Duplin County, NCNC51,571-16.7%−174%

3074Bamberg County, SCSC12,796-16.7%+1059%

3075Calhoun County, GAGA5,413-16.7%−164%

3076Randolph County, GAGA6,156-16.8%+480%

3077Washington County, NCNC10,638-16.8%+759%

3078Humphreys County, MSMS7,001-17.0%+122%

3079Carter County, MOMO5,418-17.0%−320%

3080Haines, AKAK2,068-17.1%−231%

3081Madison Parish, LALA8,844-17.2%−269%

3082Zavala County, TXTX9,037-17.2%+272%

3083Rock County, NENE1,259-17.3%+33%

3084Tallahatchie County, MSMS10,877-17.3%+758%

3085Lafayette County, ARAR5,888-17.5%+56%

3086Lee County, ARAR8,029-17.5%+383%

3087Jefferson County, OKOK5,431-17.5%+540%

3088Claiborne Parish, LALA13,354-17.6%+453%

3089Dundy County, NENE1,568-17.6%+57%

3090Cameron Parish, LALA4,718-17.9%−326%

3091Pulaski County, GAGA10,172-17.9%−198%

3092Macon County, GAGA11,756-18.0%−346%

3093Foard County, TXTX1,044-18.0%+88%

3094Anson County, NCNC21,758-18.2%−337%

3095Coahoma County, MSMS19,849-18.2%+453%

3096St. Francis County, ARAR21,800-18.3%−726%

3097Sutton County, TXTX3,203-18.3%+1206%

3098Calhoun County, WVWV5,978-18.3%+377%

3099Cochran County, TXTX2,546-18.5%+25%

3100Wayne County, MOMO10,782-18.8%−227%

3101Concho County, TXTX3,607-19.2%−163%

3102Ritchie County, WVWV8,034-19.2%−1885%

3103La Paz County, AZAZ16,711-19.2%−145%

3104Luce County, MIMI6,339-19.5%−189%

3105Clark County, IDID783-19.6%−157%

3106Perry County, ALAL7,425-19.6%+179%

3107Jerauld County, SDSD1,654-19.7%+267%

3108Dallas County, ARAR6,011-20.1%+379%

3109Pendleton County, WVWV5,826-20.2%−1244%

3110Oregon County, MOMO8,709-20.6%−324%

3111Northampton County, NCNC16,491-20.9%−438%

3112Hyde County, NCNC4,554-21.0%−374%

3113Tensas Parish, LALA3,700-21.0%+208%

3114Presidio County, TXTX5,433-21.6%−315%

3115Loving County, TXTX52-22.0%−41%

3116Sharkey County, MSMS3,097-22.7%+230%

3117Terrell County, TXTX702-22.8%−2%

3118Allendale County, SCSC7,355-22.8%+424%

3119McIntosh County, GAGA11,989-23.4%−191%

3120Phillips County, ARAR14,255-23.8%+187%

3121Ripley County, MOMO10,717-24.3%−348%

3122Telfair County, GAGA11,195-24.4%−438%

3123Dooly County, GAGA11,156-24.9%−252%

3124Quitman County, MSMS5,364-24.9%+600%

3125McPherson County, NENE369-26.0%+991%

3126Tyrrell County, NCNC3,537-26.4%−447%

3127Blaine County, OKOK8,515-26.9%−709%

3128Dickens County, TXTX1,692-27.6%−471%

3129Edwards County, TXTX1,370-29.0%+531%

3130Schleicher County, TXTX2,245-29.2%+1486%

3131Alexander County, ILIL4,570-36.4%+273%

SHOWING 3,001–3,131 OF 3,131

1 2 3 4 5 6 7

Download CSV (full list, 3,131 rows)

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