Which county has the lowest population density?

Yukon-Koyukuk Census Area, Alaska ranks #1 with 0 (2025 American Community Survey).

What are the top 5 counties by population density?

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

How many counties are in this ranking?

3,144 counties qualify after filtering for population minimums and data availability. The ranking covers 2025 ACS 5-year data.

How is population density measured?

Residents per square mile of land area. Source: US Census Bureau, American Community Survey 5-year estimates (2025).

RANKING · 2025 ACS · 144 SHOWN OF 3,144

Most sparsely populated, US counties

US counties with the fewest residents per square mile (2023).

Flip the list · Most densely populated, US counties →

All statesAll rankings

SAME RANKING BYCities States Metros

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

3001Naugatuck Valley Planning Region, CTCT463,3491,122–

3002Wyandotte County, KSKS170,5971,125+8%

3003Fort Bend County, TXTX975,1911,132+175%

3004Morris County, NJNJ524,2511,137+11%

3005Monroe County, NYNY750,5061,142+2%

3006Oklahoma County, OKOK822,1251,160+24%

3007Fayette County, KYKY329,7511,162+27%

3008Montgomery County, OHOH539,5981,170−3%

3009Davis County, UTUT381,2271,174+60%

3010Somerset County, NJNJ356,4861,181+20%

3011Shelby County, TNTN910,2261,196+1%

3012Western Connecticut Planning Region, CTCT640,4821,204–

3013Durham County, NCNC347,2401,208+55%

3014Jackson County, MOMO732,9941,213+12%

3015Denton County, TXTX1,069,3461,217+147%

3016Tulsa County, OKOK698,7821,225+24%

3017Lucas County, OHOH423,3471,246−7%

3018Forsyth County, GAGA282,8051,259+187%

3019Martinsville, VAVA13,8491,264−10%

3020Bristol, VAVA16,4181,276−5%

3021New Hanover County, NCNC245,9591,279+53%

3022Summit County, OHOH538,3761,304−1%

3023Johnson County, KSKS636,9061,345+41%

3024Staunton, VAVA26,8011,345+12%

3025Howard County, MDMD339,1831,352+37%

3026New Castle County, DEDE588,0261,379+18%

3027Monmouth County, NJNJ651,0351,390+6%

3028Duval County, FLFL1,062,9631,394+36%

3029Travis County, TXTX1,389,6701,398+71%

3030Baltimore County, MDMD847,6501,417+12%

3031Jefferson Parish, LALA431,3981,434−5%

3032Anne Arundel County, MDMD603,3801,455+23%

3033Henrico County, VAVA342,7751,467+31%

3034Miami-Dade County, FLFL2,802,0291,475+24%

3035Davidson County, TNTN745,9041,482+31%

3036Santa Clara County, CACA1,914,3911,483+14%

3037Petersburg, VAVA33,7341,485−0%

3038Oakland County, MIMI1,288,3371,485+8%

3039Prince William County, VAVA502,9661,500+79%

3040Wake County, NCNC1,257,2351,506+100%

3041Hillsborough County, FLFL1,574,1151,539+58%

3042Collin County, TXTX1,297,1791,542+164%

3043South Central Connecticut Planning Region, CTCT578,7411,576–

3044Seminole County, FLFL491,8841,590+35%

3045Waynesboro, VAVA23,9511,600+23%

3046Lake County, ILIL719,3391,622+12%

3047Salt Lake County, UTUT1,220,9161,622+36%

3048Contra Costa County, CACA1,170,0701,632+23%

3049Honolulu County, HIHI988,7031,646+13%

3050Providence County, RIRI678,1791,656+9%

3051San Mateo County, CACA743,5681,658+5%

3052Lynchburg, VAVA81,3471,661+25%

3053Broward County, FLFL2,013,3171,674+24%

3054Sacramento County, CACA1,618,4601,677+32%

3055Allegheny County, PAPA1,225,0351,678−4%

3056Essex County, MAMA826,6531,678+14%

3057Orange County, FLFL1,528,0021,692+70%

3058Suffolk County, NYNY1,546,0901,697+9%

3059Bexar County, TXTX2,160,0881,742+55%

3060Williamsburg, VAVA15,8611,775+32%

3061Salem, VAVA25,8161,779+4%

3062Mercer County, NJNJ399,2891,779+14%

3063Radford, VAVA17,2431,782+9%

3064Montgomery County, PAPA877,6431,817+17%

3065Multnomah County, OROR795,3911,845+20%

3066Macomb County, MIMI886,2211,849+12%

3067Virginia Beach, VAVA453,7371,854+7%

3068Douglas County, NENE606,4601,858+31%

3069Norfolk County, MAMA739,7491,868+14%

3070St. Louis County, MOMO990,9111,951−2%

3071Prince George's County, MDMD970,3742,011+21%

3072Middlesex County, MAMA1,669,9792,042+14%

3073Rockland County, NYNY357,3972,058+25%

3074Hamilton County, OHOH838,4182,068−1%

3075Bristol County, RIRI50,0012,072−1%

3076Fulton County, GAGA1,098,7912,086+35%

3077Jefferson County, KYKY795,2222,088+15%

3078Clayton County, GAGA297,4712,098+26%

3079Orleans Parish, LALA362,1542,137−25%

3080Montgomery County, MDMD1,074,5822,179+23%

3081Alameda County, CACA1,636,6302,219+13%

3082Hopewell, VAVA23,2612,247+4%

3083Hennepin County, MNMN1,284,7842,319+15%

3084Roanoke, VAVA99,1112,331+4%

3085Cobb County, GAGA793,3452,335+31%

3086Mecklenburg County, NCNC1,233,3832,356+77%

3087Westchester County, NYNY1,015,7432,358+10%

3088Gwinnett County, GAGA1,018,0992,361+73%

3089Los Angeles County, CACA9,694,9342,388+2%

3090Broomfield County, COCO79,1742,402–

3091Greater Bridgeport Planning Region, CTCT337,6972,409–

3092Camden County, NJNJ535,7992,420+5%

3093Colonial Heights, VAVA18,7382,492+11%

3094Marion County, ININ992,1962,506+15%

3095Franklin County, OHOH1,361,5362,557+27%

3096Tarrant County, TXTX2,248,4662,599+55%

3097Newport News, VAVA183,2302,656+2%

3098Hampton, VAVA137,3152,668−6%

3099Cuyahoga County, OHOH1,232,9252,697−12%

3100DuPage County, ILIL934,2982,850+3%

3101Passaic County, NJNJ531,6242,856+9%

3102Middlesex County, NJNJ883,3352,856+18%

3103Wayne County, MIMI1,769,0382,891−14%

3104DeKalb County, GAGA774,3942,893+16%

3105Portsmouth, VAVA96,7772,906−4%

3106Fredericksburg, VAVA30,3932,908+58%

3107Harrisonburg, VAVA50,8392,933+26%

3108Harris County, TXTX5,045,0262,955+48%

3109Fairfax County, VAVA1,167,8732,987+20%

3110Dallas County, TXTX2,661,3973,048+20%

3111Winchester, VAVA28,2723,075+20%

3112Lexington, VAVA7,7693,109+13%

3113Delaware County, PAPA580,9373,161+5%

3114Pinellas County, FLFL948,5633,465+3%

3115Ramsey County, MNMN541,6233,557+6%

3116Milwaukee County, WIWI924,2163,828−2%

3117Richmond, VAVA237,2573,959+20%

3118Orange County, CACA3,149,5073,972+11%

3119Bergen County, NJNJ977,0264,197+11%

3120Fairfax, VAVA26,7724,290+25%

3121Charlottesville, VAVA44,3884,333−1%

3122Norfolk, VAVA231,0134,336−1%

3123Manassas, VAVA44,3324,504+26%

3124St. Louis, MOMO278,1444,507−20%

3125Denver County, COCO740,6134,838+34%

3126Nassau County, NYNY1,398,9394,916+5%

3127Manassas Park, VAVA16,5605,458+61%

3128Cook County, ILIL5,194,6255,497−3%

3129Union County, NJNJ601,8635,857+15%

3130Baltimore, MDMD569,9977,042−12%

3131Essex County, NJNJ896,3797,109+13%

3132Falls Church, VAVA15,1597,409+46%

3133Richmond County, NYNY501,2908,715+13%

3134Arlington County, VAVA243,9319,383+29%

3135Alexandria, VAVA160,66210,757+25%

3136District of Columbia, DCDC693,64511,348+21%

3137Philadelphia County, PAPA1,574,28111,717+4%

3138Suffolk County, MAMA791,89113,594+15%

3139Hudson County, NJNJ735,03315,912+21%

3140San Francisco County, CACA826,07917,689+6%

3141Queens County, NYNY2,358,18221,690+6%

3142Bronx County, NYNY1,406,33233,344+6%

3143Kings County, NYNY2,653,96338,254+8%

3144New York County, NYNY1,664,86273,478+8%

SHOWING 3,001–3,144 OF 3,144

1 2 3 4 5 6 7

Download CSV (full list, 3,144 rows)

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