Which county has the lowest population density?

Yukon-Koyukuk Census Area, Alaska ranks #1 with 0 (2020 Decennial Census).

What are the top 5 counties by population density?

Yukon-Koyukuk Census Area, Alaska, Lake and Peninsula, Alaska, Yakutat, Alaska, Loving County, Texas, Copper River Census Area, Alaska.

How many counties are in this ranking?

3,135 counties qualify after filtering for population minimums and data availability. The ranking covers 2020 Decennial Census data.

How is population density measured?

Residents per square mile of land area. Source: US Census Bureau, 2020 Decennial Census.

RANKING · 2020 CENSUS · 135 SHOWN OF 3,135

Most sparsely populated, US counties · 2020

US counties with the fewest residents per square mile (2020).

Flip the list · Most densely populated, US counties →

All statesAll rankings

SAME RANKING BYCities States Metros

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

3001Forsyth County, GAGA282,8051,119+155%

3002Oklahoma County, OKOK822,1251,123+21%

3003Durham County, NCNC347,2401,130+45%

3004Fayette County, KYKY329,7511,136+24%

3005Somerset County, NJNJ356,4861,144+16%

3006Monroe County, NYNY750,5061,156+3%

3007Montgomery County, OHOH539,5981,165−4%

3008Tulsa County, OKOK698,7821,174+19%

3009New Hanover County, NCNC245,9591,174+41%

3010Jackson County, MOMO732,9941,186+10%

3011Shelby County, TNTN910,2261,221+4%

3012Martinsville, VAVA13,8491,231−13%

3013Collin County, TXTX1,297,1791,265+116%

3014Lucas County, OHOH423,3471,270−5%

3015Johnson County, KSKS636,9061,288+35%

3016Staunton, VAVA26,8011,293+8%

3017Travis County, TXTX1,389,6701,298+59%

3018Duval County, FLFL1,062,9631,305+28%

3019Summit County, OHOH538,3761,3090%

3020Howard County, MDMD339,1831,324+34%

3021Bristol, VAVA16,4181,338−1%

3022New Castle County, DEDE588,0261,339+14%

3023Wake County, NCNC1,257,2351,353+80%

3024Monmouth County, NJNJ651,0351,375+5%

3025Anne Arundel County, MDMD603,3801,418+20%

3026Davidson County, TNTN745,9041,422+26%

3027Miami-Dade County, FLFL2,802,0291,422+20%

3028Hillsborough County, FLFL1,574,1151,428+46%

3029Baltimore County, MDMD847,6501,428+13%

3030Henrico County, VAVA342,7751,431+27%

3031Prince William County, VAVA502,9661,438+72%

3032Jefferson Parish, LALA431,3981,465−3%

3033Oakland County, MIMI1,288,3371,469+7%

3034Petersburg, VAVA33,7341,473−1%

3035Waynesboro, VAVA23,9511,483+14%

3036Santa Clara County, CACA1,914,3911,500+15%

3037Seminole County, FLFL491,8841,522+29%

3038Salt Lake County, UTUT1,220,9161,574+32%

3039Orange County, FLFL1,528,0021,584+60%

3040Lake County, ILIL719,3391,610+11%

3041Lynchburg, VAVA81,3471,613+21%

3042Providence County, RIRI678,1791,614+6%

3043Broward County, FLFL2,013,3171,616+20%

3044Bexar County, TXTX2,160,0881,620+44%

3045Contra Costa County, CACA1,170,0701,626+23%

3046Sacramento County, CACA1,618,4601,642+30%

3047Essex County, MAMA826,6531,644+12%

3048Radford, VAVA17,2431,661+1%

3049Suffolk County, NYNY1,546,0901,675+8%

3050Honolulu County, HIHI988,7031,692+16%

3051San Mateo County, CACA743,5681,704+8%

3052Allegheny County, PAPA1,225,0351,713−2%

3053Mercer County, NJNJ399,2891,726+10%

3054Williamsburg, VAVA15,8611,726+29%

3055Salem, VAVA25,8161,746+2%

3056Montgomery County, PAPA877,6431,774+14%

3057Douglas County, NENE606,4601,790+26%

3058Norfolk County, MAMA739,7491,833+12%

3059Macomb County, MIMI886,2211,838+12%

3060Virginia Beach, VAVA453,7371,878+8%

3061Multnomah County, OROR795,3911,892+23%

3062Rockland County, NYNY357,3971,948+18%

3063St. Louis County, MOMO990,9111,977−1%

3064Middlesex County, MAMA1,669,9791,995+11%

3065Prince George's County, MDMD970,3742,004+21%

3066Fulton County, GAGA1,098,7912,025+31%

3067Hamilton County, OHOH838,4182,049−2%

3068Jefferson County, KYKY795,2222,056+13%

3069Clayton County, GAGA297,4712,099+26%

3070Bristol County, RIRI50,0012,1050%

3071Mecklenburg County, NCNC1,233,3832,130+60%

3072Montgomery County, MDMD1,074,5822,154+22%

3073Gwinnett County, GAGA1,018,0992,220+63%

3074Hopewell, VAVA23,2612,225+3%

3075Broomfield County, COCO79,1742,248–

3076Cobb County, GAGA793,3452,255+26%

3077Orleans Parish, LALA362,1542,265−21%

3078Alameda County, CACA1,636,6302,281+17%

3079Hennepin County, MNMN1,284,7842,313+15%

3080Westchester County, NYNY1,015,7432,332+9%

3081Roanoke, VAVA99,1112,352+5%

3082Camden County, NJNJ535,7992,365+3%

3083Colonial Heights, VAVA18,7382,417+8%

3084Tarrant County, TXTX2,248,4662,439+46%

3085Los Angeles County, CACA9,694,9342,466+5%

3086Marion County, ININ992,1962,468+14%

3087Franklin County, OHOH1,361,5362,486+24%

3088Hampton, VAVA137,3152,665−6%

3089Fredericksburg, VAVA30,3932,678+45%

3090Newport News, VAVA183,2302,699+3%

3091Cuyahoga County, OHOH1,232,9252,766−9%

3092Harris County, TXTX5,045,0262,772+39%

3093Middlesex County, NJNJ883,3352,791+15%

3094Passaic County, NJNJ531,6242,816+7%

3095DuPage County, ILIL934,2982,846+3%

3096DeKalb County, GAGA774,3942,856+15%

3097Lexington, VAVA7,7692,929+7%

3098Wayne County, MIMI1,769,0382,931−13%

3099Portsmouth, VAVA96,7772,940−3%

3100Fairfax County, VAVA1,167,8732,942+19%

3101Harrisonburg, VAVA50,8392,989+28%

3102Dallas County, TXTX2,661,3972,993+18%

3103Winchester, VAVA28,2723,059+19%

3104Delaware County, PAPA580,9373,138+5%

3105Pinellas County, FLFL948,5633,503+4%

3106Ramsey County, MNMN541,6233,628+8%

3107Richmond, VAVA237,2573,782+15%

3108Fairfax, VAVA26,7723,869+12%

3109Milwaukee County, WIWI924,2163,8910%

3110Orange County, CACA3,149,5074,020+12%

3111Bergen County, NJNJ977,0264,106+8%

3112Manassas, VAVA44,3324,345+22%

3113Norfolk, VAVA231,0134,467+2%

3114Charlottesville, VAVA44,3884,544+3%

3115Denver County, COCO740,6134,674+29%

3116St. Louis, MOMO278,1444,886−13%

3117Nassau County, NYNY1,398,9394,905+5%

3118Cook County, ILIL5,194,6255,583−2%

3119Union County, NJNJ601,8635,599+10%

3120Manassas Park, VAVA16,5605,675+67%

3121Essex County, NJNJ896,3796,850+9%

3122Falls Church, VAVA15,1597,164+41%

3123Baltimore, MDMD569,9977,236−10%

3124Richmond County, NYNY501,2908,618+12%

3125Arlington County, VAVA243,9319,180+26%

3126Alexandria, VAVA160,66210,677+24%

3127District of Columbia, DCDC693,64511,281+21%

3128Philadelphia County, PAPA1,574,28111,937+6%

3129Suffolk County, MAMA791,89113,698+16%

3130Hudson County, NJNJ735,03315,692+19%

3131San Francisco County, CACA826,07918,714+13%

3132Queens County, NYNY2,358,18222,124+8%

3133Bronx County, NYNY1,406,33234,917+11%

3134Kings County, NYNY2,653,96339,438+11%

3135New York County, NYNY1,664,86274,775+10%

SHOWING 3,001–3,135 OF 3,135

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