Which county has the highest population density?

New York County, New York ranks #1 with 73,478 (2025 Census Population Estimates).

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?

3,144 counties qualify after filtering for population minimums and data availability. The ranking covers 2025 Census population estimates.

How is population density measured?

Residents per square mile of land area. Source: US Census Bureau, Population Estimates Program (2025).

RANKING · 2025 ESTIMATES · 144 SHOWN OF 3,144

Most densely populated, US counties

US counties ranked by residents per square mile (2025).

Flip the list · Most sparsely populated, US counties →

All statesAll rankings

SAME RANKING BYCities States Metros

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

3001▼20Kodiak Island, AKAK12,3872−11%

3002▼4Sublette County, WYWY8,9292+51%

3003▼14Fallon County, MTMT2,9592+4%

3004Beaverhead County, MTMT10,0432+9%

3005▼2Golden Valley County, NDND1,8082−6%

3006▼9Humboldt County, NVNV17,2672+7%

3007▼15Inyo County, CACA18,1582+1%

3008▼14Carbon County, WYWY14,0132−10%

3009▼10Kidder County, NDND2,3932−13%

3010▼10Bristol Bay, AKAK8472−33%

3011▼20Schleicher County, TXTX2,2452−24%

3012▼16Dundy County, NENE1,5682−32%

3013▲2Throckmorton County, TXTX1,5542−16%

3014▼12Divide County, NDND2,1102−8%

3015▲2Owyhee County, IDID12,6612+19%

3016▼10Rosebud County, MTMT8,2532−12%

3017▼5Briscoe County, TXTX1,4742−18%

3018▼11Gilliam County, OROR1,9712+3%

3019▲6Mellette County, SDSD2,1372+3%

3020▼15Blaine County, MTMT6,8602−2%

3021▼13Wallace County, KSKS1,4412−18%

3022▼11Grant County, OROR7,0752−11%

3023▼9Corson County, SDSD3,7812−10%

3024▼6Brewster County, TXTX9,4582+7%

3025▼16Greeley County, KSKS1,1822−23%

3026▼7Valley County, MTMT7,3851−4%

3027▼11Foard County, TXTX1,0441−36%

3028▼5Chouteau County, MTMT5,8651−2%

3029▼2Wheatland County, MTMT2,1001−7%

3030▼1Sully County, SDSD1,4791−5%

3031▼9Sterling County, TXTX1,3491−3%

3032▼8Guadalupe County, NMNM4,3431−7%

3033▼12Jackson County, SDSD2,6661−9%

3034▼24Alpine County, CACA1,0431−14%

3035▼22Presidio County, TXTX5,4331−26%

3036▼8Irion County, TXTX1,4631−17%

3037▼11Hyde County, SDSD1,1911−29%

3038▼4Wheeler County, NENE7891−11%

3039▼7Liberty County, MTMT1,9571−9%

3040▼20Cottle County, TXTX1,2241−36%

3041▼6Daggett County, UTUT9341+1%

3042▼6Sheridan County, NDND1,2961−24%

3043▼13Grant County, NDND2,2061−22%

3044▼13Baca County, COCO3,3471−26%

3045▼12Stonewall County, TXTX1,1861−30%

3046▼6Glasscock County, TXTX1,1281−20%

3047▼9Rock County, NENE1,2591−28%

3048▲1Butte County, IDID2,7831−4%

3049▲15Camas County, IDID1,3161+33%

3050▼9Ziebach County, SDSD2,3891−5%

3051▼6Aleutians West Census Area, AKAK5,2401−4%

3052▼6Oldham County, TXTX1,7831−18%

3053▼10Mineral County, NVNV4,4071−13%

3054▼17Logan County, NENE6691−14%

3055▼8Petersburg, AKAK3,3941–

3056▼2Judith Basin County, MTMT2,1621−7%

3057▼13Hayes County, NENE8211−23%

3058▼16Hidalgo County, NMNM3,9291−34%

3059▼11Daniels County, MTMT1,6121−20%

3060▼21Cimarron County, OKOK2,0591−35%

3061▼8Prince of Wales-Hyder Census Area, AKAK5,7771–

3062▼3Lander County, NVNV5,8721+1%

3063▼12Pershing County, NVNV6,4211−4%

3064▼12Garden County, NENE1,8041−21%

3065▼9Motley County, TXTX1,0431−27%

3066▼4Wayne County, UTUT2,5871+3%

3067▼1Mineral County, COCO9101+10%

3068▼3Keya Paha County, NENE7921−19%

3069▲1Garfield County, UTUT5,2561+11%

3070▼15Loup County, NENE5701−20%

3071▼8Lake County, OROR8,1871+10%

3072▼15Union County, NMNM3,8441−8%

3073▼13Haakon County, SDSD1,8021−18%

3074▼16Wibaux County, MTMT8851−17%

3075▼8Perkins County, SDSD2,8531−15%

3076▼26Crockett County, TXTX2,7691−32%

3077▼16White Pine County, NVNV8,6611−6%

3078▼9Cheyenne County, COCO1,7131−23%

3079▼11Hooker County, NENE6861−12%

3080▼1Custer County, IDID4,6361+7%

3081▼10Jones County, SDSD9131−23%

3082▼6Roberts County, TXTX8671−2%

3083▼9Cherry County, NENE5,5611−10%

3084Billings County, NDND1,0711+21%

3085▼10Banner County, NENE6861−16%

3086▼13Thomas County, NENE6391−12%

3087Meagher County, MTMT2,1371+11%

3088▼16Niobrara County, WYWY2,3411−3%

3089▼12Haines, AKAK2,0681−14%

3090▼9Wheeler County, OROR1,4721−5%

3091▼6Phillips County, MTMT4,2031−9%

3092▼6Kiowa County, COCO1,4121−13%

3093▼10Wrangell, AKAK2,0071–

3094▼16Jeff Davis County, TXTX1,7111−22%

3095▲1Hudspeth County, TXTX3,4331+3%

3096▼16Jackson County, COCO1,2111−23%

3097▼15Kent County, TXTX6741−22%

3098▼9Treasure County, MTMT7281−15%

3099▼8Harney County, OROR7,3801−3%

3100▼12Grant County, NENE5611−25%

3101▼6Golden Valley County, MTMT8441−19%

3102▼10De Baca County, NMNM1,6471−26%

3103▼13Chugach Census Area, AKAK6,5531–

3104▼11Hinsdale County, COCO7531−5%

3105▼7McCone County, MTMT1,7201−13%

3106▼9Edwards County, TXTX1,3701−37%

3107▼6Blaine County, NENE4581−21%

3108▼9Prairie County, MTMT1,1121−7%

3109▼15Borden County, TXTX5671−22%

3110▼7Culberson County, TXTX2,2671−24%

3111▼7Sioux County, NENE1,1881−19%

3112▼12Arthur County, NENE3961−11%

3113▼7Catron County, NMNM3,8271+8%

3114▼7Powder River County, MTMT1,7811−4%

3115▼13Slope County, NDND6281−18%

3116▼8Harding County, SDSD1,3310−2%

3117▼7Aleutians East, AKAK3,4790+29%

3118▼13McMullen County, TXTX5440−36%

3119▼10Kusilvak Census Area, AKAK7,9320–

3120▼8Bethel Census Area, AKAK18,3910+15%

3121▼7Eureka County, NVNV1,8670+13%

3122▼9Clark County, IDID7830−23%

3123▼12McPherson County, NENE3690−31%

3124▼9Nome Census Area, AKAK9,8300+7%

3125▼9Carter County, MTMT1,3830+2%

3126▼9Lincoln County, NVNV4,3200+4%

3127▼9Hoonah-Angoon Census Area, AKAK2,2710–

3128▼7Petroleum County, MTMT5480+11%

3129▼10Terrell County, TXTX7020−35%

3130▼7Southeast Fairbanks Census Area, AKAK7,2700+18%

3131▼11Harding County, NMNM6170−24%

3132▼7Garfield County, MTMT1,1480−10%

3133▼9Dillingham Census Area, AKAK4,4830−9%

3134▼8Kenedy County, TXTX3190−23%

3135▼13King County, TXTX1920−46%

3136▼8Esmeralda County, NVNV7290−25%

3137▼10Northwest Arctic, AKAK7,0950−2%

3138▼9Denali, AKAK1,6160−15%

3139▼9North Slope, AKAK10,5820+43%

3140▼9Copper River Census Area, AKAK2,6660–

3141▼8Yakutat, AKAK6720−17%

3142▼10Loving County, TXTX520−22%

3143▼9Lake and Peninsula, AKAK1,3570−26%

3144▼9Yukon-Koyukuk Census Area, AKAK5,0280−23%

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 POPULATION ESTIMATES