Which county has the highest population density?

New York County, New York ranks #1 with 69,992 (2010 Decennial Census).

What are the top 5 counties by population density?

New York County, New York, Kings County, New York, Bronx County, New York, Queens County, New York, San Francisco 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 population density measured?

Residents per square mile of land area. Source: US Census Bureau, 2010 Decennial Census.

RANKING · 2010 CENSUS · 131 SHOWN OF 3,131

Most densely populated, US counties · 2010

US counties ranked by residents per square mile (2010).

Flip the list · Most sparsely populated, US counties →

All statesAll rankings

SAME RANKING BYCities States Metros

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

3001Burke County, NDND2,1322−12%

3002Granite County, MTMT3,6582+9%

3003Dunn County, NDND4,0582−2%

3004Lemhi County, IDID8,4742+2%

3005Humboldt County, NVNV17,2672+3%

3006Golden Valley County, NDND1,8082−13%

3007Cottle County, TXTX1,2242−21%

3008Beaverhead County, MTMT10,04320%

3009Hyde County, SDSD1,1912−15%

3010Grant County, OROR7,0752−6%

3011Divide County, NDND2,1102−9%

3012Corson County, SDSD3,7812−3%

3013Liberty County, MTMT1,9572+8%

3014Jackson County, SDSD2,6662+3%

3015Stonewall County, TXTX1,1862−12%

3016Wallace County, KSKS1,4412−15%

3017Greeley County, KSKS1,1822−19%

3018Alpine County, CACA1,0432−3%

3019Mellette County, SDSD2,1372−2%

3020Gilliam County, OROR1,9712−2%

3021Guadalupe County, NMNM4,34320%

3022Blaine County, MTMT6,8602−7%

3023Wheatland County, MTMT2,1002−4%

3024Irion County, TXTX1,4632−10%

3025Daggett County, UTUT9342+15%

3026Rock County, NENE1,2592−13%

3027Owyhee County, IDID12,6612+8%

3028Valley County, MTMT7,3851−4%

3029Brewster County, TXTX9,4581+4%

3030Baca County, COCO3,3471−16%

3031Chouteau County, MTMT5,8651−3%

3032Grant County, NDND2,2061−16%

3033Ziebach County, SDSD2,3891+11%

3034Hidalgo County, NMNM3,9291−17%

3035Wheeler County, NENE7891−8%

3036Oldham County, TXTX1,7831−6%

3037Sully County, SDSD1,4791−12%

3038Glasscock County, TXTX1,1281−13%

3039Sheridan County, NDND1,2961−23%

3040Hayes County, NENE8211−9%

3041Cimarron County, OKOK2,0591−21%

3042Logan County, NENE6691−1%

3043Crockett County, TXTX2,7691−9%

3044Petersburg, AKAK3,3941–

3045Butte County, IDID2,78310%

3046Mineral County, NVNV4,4071−6%

3047Aleutians West Census Area, AKAK5,2401+2%

3048Sterling County, TXTX1,3491−18%

3049Daniels County, MTMT1,6121−13%

3050Motley County, TXTX1,0431−15%

3051Garden County, NENE1,8041−10%

3052Union County, NMNM3,8441+9%

3053Wibaux County, MTMT8851−5%

3054Wayne County, UTUT2,5871+11%

3055White Pine County, NVNV8,6611+9%

3056Loup County, NENE5701−11%

3057Pershing County, NVNV6,4211+1%

3058Judith Basin County, MTMT2,1621−11%

3059Haines, AKAK2,0681+5%

3060Haakon County, SDSD1,8021−12%

3061Keya Paha County, NENE7921−16%

3062Prince of Wales-Hyder Census Area, AKAK5,7771–

3063Lander County, NVNV5,87210%

3064Camas County, IDID1,3161+13%

3065Perkins County, SDSD2,8531−11%

3066Jones County, SDSD9131−16%

3067Jeff Davis County, TXTX1,7111+6%

3068Cheyenne County, COCO1,7131−18%

3069Hooker County, NENE6861−6%

3070Roberts County, TXTX8671+5%

3071Garfield County, UTUT5,2561+9%

3072Lake County, OROR8,1871+6%

3073Cherry County, NENE5,5611−7%

3074Niobrara County, WYWY2,3411+3%

3075Edwards County, TXTX1,3701−7%

3076Wrangell, AKAK2,0071–

3077Banner County, NENE6861−16%

3078Thomas County, NENE6391−11%

3079Kent County, TXTX6741−6%

3080Custer County, IDID4,6361+1%

3081De Baca County, NMNM1,6471−10%

3082Jackson County, COCO1,2111−12%

3083Wheeler County, OROR1,4721−7%

3084Phillips County, MTMT4,2031−8%

3085Mineral County, COCO9101−14%

3086Kiowa County, COCO1,4121−14%

3087Meagher County, MTMT2,1371−2%

3088Grant County, NENE5611−18%

3089Hudspeth County, TXTX3,4331+4%

3090Hinsdale County, COCO7531+7%

3091Golden Valley County, MTMT8441−15%

3092Treasure County, MTMT7281−17%

3093Harney County, OROR7,3801−2%

3094Borden County, TXTX5671−12%

3095Billings County, NDND1,0711−12%

3096Prairie County, MTMT1,1121−2%

3097Blaine County, NENE4581−18%

3098McCone County, MTMT1,7201−12%

3099Arthur County, NENE3961+4%

3100Sioux County, NENE1,1881−11%

3101Culberson County, TXTX2,2671−19%

3102McPherson County, NENE3691+1%

3103McMullen County, TXTX5441−17%

3104Slope County, NDND6281−5%

3105Clark County, IDID7831−4%

3106Catron County, NMNM3,8271+5%

3107Powder River County, MTMT1,7811−6%

3108Lincoln County, NVNV4,3201+28%

3109Eureka County, NVNV1,8670+20%

3110Harding County, SDSD1,3310−7%

3111Aleutians East, AKAK3,4790+16%

3112Bethel Census Area, AKAK18,3910+6%

3113Terrell County, TXTX7020−9%

3114Nome Census Area, AKAK9,8300+3%

3115Carter County, MTMT1,3830−15%

3116Hoonah-Angoon Census Area, AKAK2,2710–

3117Harding County, NMNM6170−14%

3118King County, TXTX1920−20%

3119Petroleum County, MTMT54800%

3120Kenedy County, TXTX31900%

3121Southeast Fairbanks Census Area, AKAK7,2700+14%

3122Dillingham Census Area, AKAK4,4830−2%

3123Garfield County, MTMT1,1480−6%

3124Esmeralda County, NVNV7290−19%

3125Northwest Arctic, AKAK7,0950+4%

3126Denali, AKAK1,6160−4%

3127Loving County, TXTX520+22%

3128North Slope, AKAK10,5820+28%

3129Yakutat, AKAK6720−18%

3130Lake and Peninsula, AKAK1,3570−11%

3131Yukon-Koyukuk Census Area, AKAK5,0280−15%

SHOWING 3,001–3,131 OF 3,131

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS