Which county has the lowest population density?

Yukon-Koyukuk Census Area, Alaska ranks #1 with 0 (1990 American Community Survey).

What are the top 5 counties by population density?

Yukon-Koyukuk Census Area, Alaska, North Slope, Alaska, Lake and Peninsula, Alaska, Loving County, Texas, Northwest Arctic, Alaska.

How many counties are in this ranking?

3,122 counties qualify after filtering for population minimums and data availability. The ranking covers 1990 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 (1990).

RANKING · 1990 CENSUS · 122 SHOWN OF 3,122

Most sparsely populated, US counties · 1990

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

3001Lake County, OHOH232,217939−5%

3002Franklin, VAVA8,478950−6%

3003Lake County, ININ504,612953−2%

3004Bexar County, TXTX2,160,088956−15%

3005Kent County, RIRI173,495956−4%

3006Salt Lake County, UTUT1,220,916964−19%

3007Mecklenburg County, NCNC1,233,383977−26%

3008Buena Vista, VAVA6,672995+1%

3009Davidson County, TNTN745,9041,015−10%

3010Anne Arundel County, MDMD603,3801,030−13%

3011New Castle County, DEDE588,0261,037−12%

3012Broward County, FLFL2,013,3171,044−23%

3013Jackson County, MOMO732,9941,047−3%

3014Wyandotte County, KSKS170,5971,068+3%

3015Sacramento County, CACA1,618,4601,079−15%

3016Shelby County, TNTN910,2261,085−8%

3017Monroe County, NYNY750,5061,087−3%

3018Contra Costa County, CACA1,170,0701,121−15%

3019Baltimore County, MDMD847,6501,157−8%

3020Santa Clara County, CACA1,914,3911,160−11%

3021Lake County, ILIL719,3391,164−20%

3022Monmouth County, NJNJ651,0351,181−10%

3023Staunton, VAVA26,8011,228+3%

3024Fulton County, GAGA1,098,7911,232−20%

3025Waynesboro, VAVA23,9511,239−5%

3026Danville, VAVA41,6471,240+10%

3027Montgomery County, OHOH539,5981,244+3%

3028Summit County, OHOH538,3761,248−5%

3029Oakland County, MIMI1,288,3371,249−9%

3030Douglas County, NENE606,4601,276−10%

3031Covington, VAVA5,6801,278+11%

3032Clayton County, GAGA297,4711,284−23%

3033Williamsburg, VAVA15,8611,290−4%

3034Cobb County, GAGA793,3451,318−26%

3035Lynchburg, VAVA81,3471,349+1%

3036Tarrant County, TXTX2,248,4661,352−19%

3037Multnomah County, OROR795,3911,355−12%

3038Essex County, MAMA826,6531,361−7%

3039Lucas County, OHOH423,3471,361+2%

3040Honolulu County, HIHI988,7031,392−5%

3041Montgomery County, PAPA877,6431,404−10%

3042Bristol, VAVA16,4181,432+6%

3043San Mateo County, CACA743,5681,448−8%

3044Suffolk County, NYNY1,546,0901,451−7%

3045Mercer County, NJNJ399,2891,451−7%

3046Providence County, RIRI678,1791,456−4%

3047Martinsville, VAVA13,8491,475+5%

3048Jefferson Parish, LALA431,3981,490−2%

3049Macomb County, MIMI886,2211,497−9%

3050Prince George's County, MDMD970,3741,511−9%

3051Rockland County, NYNY357,3971,528−7%

3052Montgomery County, MDMD1,074,5821,535−13%

3053Norfolk County, MAMA739,7491,555−5%

3054Virginia Beach, VAVA453,7371,606−8%

3055Salem, VAVA25,8161,637−4%

3056Radford, VAVA17,2431,647+1%

3057Harris County, TXTX5,045,0261,651−17%

3058Petersburg, VAVA33,7341,690+14%

3059Middlesex County, MAMA1,669,9791,710−5%

3060Alameda County, CACA1,636,6301,735−11%

3061Jefferson County, KYKY795,2221,746−4%

3062Harrisonburg, VAVA50,8391,771−24%

3063Franklin County, OHOH1,361,5361,806−10%

3064Fredericksburg, VAVA30,3931,821−1%

3065Allegheny County, PAPA1,225,0351,831+4%

3066Hennepin County, MNMN1,284,7841,864−8%

3067St. Louis County, MOMO990,9111,956−2%

3068Marion County, ININ992,1962,013−7%

3069Bristol County, RIRI50,0012,025−4%

3070Westchester County, NYNY1,015,7432,031−5%

3071DeKalb County, GAGA774,3942,039−18%

3072Fairfax County, VAVA1,167,8732,093−16%

3073Dallas County, TXTX2,661,3972,122−16%

3074Hamilton County, OHOH838,4182,136+2%

3075Colonial Heights, VAVA18,7382,136−5%

3076Middlesex County, NJNJ883,3352,172−10%

3077Los Angeles County, CACA9,694,9342,183−7%

3078Manassas Park, VAVA16,5602,220−35%

3079Hopewell, VAVA23,2612,231+3%

3080Roanoke, VAVA99,1112,267+2%

3081Camden County, NJNJ535,7992,272−1%

3082DuPage County, ILIL934,2982,384−14%

3083Winchester, VAVA28,2722,387−7%

3084Passaic County, NJNJ531,6242,434−7%

3085Newport News, VAVA183,2302,465−6%

3086Hampton, VAVA137,3152,600−9%

3087Lexington, VAVA7,7692,785+1%

3088Manassas, VAVA44,3322,840−20%

3089Orleans Parish, LALA362,1542,932+3%

3090Delaware County, PAPA580,9372,979−1%

3091Orange County, CACA3,149,5073,040−15%

3092Denver County, COCO740,6133,055−16%

3093Cuyahoga County, OHOH1,232,9253,089+1%

3094Pinellas County, FLFL948,5633,111−8%

3095Portsmouth, VAVA96,7773,120+3%

3096Fairfax, VAVA26,7723,144−9%

3097Ramsey County, MNMN541,6233,191−5%

3098Richmond, VAVA237,2573,389+3%

3099Wayne County, MIMI1,769,0383,451+2%

3100Bergen County, NJNJ977,0263,546−7%

3101Charlottesville, VAVA44,3883,938−10%

3102Milwaukee County, WIWI924,2163,973+2%

3103Nassau County, NYNY1,398,9394,524−4%

3104Falls Church, VAVA15,1594,681−8%

3105Union County, NJNJ601,8634,805−5%

3106Norfolk, VAVA231,0134,903+11%

3107Cook County, ILIL5,194,6255,403−5%

3108Essex County, NJNJ896,3796,172−2%

3109St. Louis, MOMO278,1446,427+14%

3110Arlington County, VAVA243,9316,575−10%

3111Richmond County, NYNY501,2906,588−15%

3112Alexandria, VAVA160,6627,444−13%

3113Baltimore, MDMD569,9979,093+13%

3114District of Columbia, DCDC693,6459,929+6%

3115Suffolk County, MAMA791,89111,397−4%

3116Philadelphia County, PAPA1,574,28111,801+4%

3117Hudson County, NJNJ735,03311,973−9%

3118San Francisco County, CACA826,07915,502−7%

3119Queens County, NYNY2,358,18217,950−12%

3120Bronx County, NYNY1,406,33228,542−10%

3121Kings County, NYNY2,653,96333,162−7%

3122New York County, NYNY1,664,86265,652−3%

SHOWING 3,001–3,122 OF 3,122

1 2 3 4 5 6 7

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