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Most densely populated counties

Population per square mile of land, using the latest Census Bureau estimate and Gazetteer land area. Small urban counties and independent cities lead because a large population shares little land.

Ranks 3101–3200

Vintage 2025 population estimates · 2026 Gazetteer land area · 3,222 county equivalents · page 32 of 33

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What this part of the ranking shows

This page runs from Corson County, South Dakota at 1.5 people per mi² to Clark County, Idaho at 0.44 people per mi². The 100 entries represent 16 state-level jurisdictions. Texas has the most entries on this page (19).

Rank numbers continue across pages and describe the full selected ranking. They are not state ranks. Start at rank 1 for the leading entries, or open a county profile for its state rank and median comparisons.

Most densely populated counties, ranks 3101 through 3200. Population is the July 1, 2025 estimate; density is per square mile of land.
RankCounty / equivalentStatePopulationPer mi²Land mi²
3101Corson CountySouth Dakota3,7811.52,469.7
3102Brewster CountyTexas9,4581.56,183.8
3103Greeley CountyKansas1,1821.5778.4
3104Valley CountyMontana7,3851.54,926.1
3105Foard CountyTexas1,0441.5704.4
3106Chouteau CountyMontana5,8651.53,972.5
3107Wheatland CountyMontana2,1001.51,422.5
3108Sully CountySouth Dakota1,4791.51,006.7
3109Sterling CountyTexas1,3491.5923.4
3110Guadalupe CountyNew Mexico4,3431.43,029.8
3111Jackson CountySouth Dakota2,6661.41,863.9
3112Alpine CountyCalifornia1,0431.4738.3
3113Presidio CountyTexas5,4331.43,855.3
3114Irion CountyTexas1,4631.41,051.5
3115Hyde CountySouth Dakota1,1911.4860.6
3116Wheeler CountyNebraska7891.4575.2
3117Liberty CountyMontana1,9571.41,430
3118Cottle CountyTexas1,2241.4900.6
3119Daggett CountyUtah9341.3696.5
3120Sheridan CountyNorth Dakota1,2961.3972.2
3121Grant CountyNorth Dakota2,2061.31,659.2
3122Baca CountyColorado3,3471.32,555
3123Stonewall CountyTexas1,1861.3916.3
3124Glasscock CountyTexas1,1281.3900.2
3125Rock CountyNebraska1,2591.21,008.3
3126Butte CountyIdaho2,7831.22,236.5
3127Camas CountyIdaho1,3161.21,074.2
3128Ziebach CountySouth Dakota2,3891.21,961.2
3129Aleutians West Census AreaAlaska5,2401.24,387.3
3130Oldham CountyTexas1,7831.21,500.5
3131Mineral CountyNevada4,4071.23,751.3
3132Logan CountyNebraska6691.2570.7
3133Petersburg BoroughAlaska3,3941.22,901.6
3134Judith Basin CountyMontana2,1621.21,869.7
3135Hayes CountyNebraska8211.2713.1
3136Hidalgo CountyNew Mexico3,9291.13,438.6
3137Daniels CountyMontana1,6121.11,426.3
3138Cimarron CountyOklahoma2,0591.11,834.8
3139Prince of Wales-Hyder Census AreaAlaska5,7771.15,268.2
3140Lander CountyNevada5,8721.15,519.2
3141Pershing CountyNevada6,4211.16,036.6
3142Garden CountyNebraska1,8041.11,704.8
3143Motley CountyTexas1,0431.1989.6
3144Wayne CountyUtah2,5871.12,461.1
3145Mineral CountyColorado9101875.8
3146Keya Paha CountyNebraska7921772.9
3147Garfield CountyUtah5,25615,179.6
3148Loup CountyNebraska5701563.3
3149Lake CountyOregon8,18718,138.6
3150Union CountyNew Mexico3,84413,825.1
3151Haakon CountySouth Dakota1,80211,810.5
3152Wibaux CountyMontana8850.99889.6
3153Perkins CountySouth Dakota2,8530.992,870.5
3154Crockett CountyTexas2,7690.992,807.3
3155White Pine CountyNevada8,6610.978,886.7
3156Cheyenne CountyColorado1,7130.961,778.3
3157Hooker CountyNebraska6860.95721
3158Custer CountyIdaho4,6360.944,922.2
3159Jones CountySouth Dakota9130.94969.7
3160Roberts CountyTexas8670.94924.1
3161Cherry CountyNebraska5,5610.935,960.1
3162Billings CountyNorth Dakota1,0710.931,148.5
3163Banner CountyNebraska6860.92746
3164Thomas CountyNebraska6390.9712.6
3165Meagher CountyMontana2,1370.892,391.9
3166Niobrara CountyWyoming2,3410.892,626
3167Haines BoroughAlaska2,0680.882,339.1
3168Wheeler CountyOregon1,4720.861,716
3169Phillips CountyMontana4,2030.825,140.4
3170Kiowa CountyColorado1,4120.81,767.8
3171Wrangell City and BoroughAlaska2,0070.792,556.3
3172Jeff Davis CountyTexas1,7110.762,264.6
3173Hudspeth CountyTexas3,4330.754,570.5
3174Jackson CountyColorado1,2110.751,613.7
3175Kent CountyTexas6740.75902.5
3176Treasure CountyMontana7280.74977.8
3177Harney CountyOregon7,3800.7310,134.5
3178Grant CountyNebraska5610.72776.7
3179Golden Valley CountyMontana8440.721,174.4
3180De Baca CountyNew Mexico1,6470.712,323.1
3181Chugach Census AreaAlaska6,5530.689,574.5
3182Hinsdale CountyColorado7530.671,117.2
3183McCone CountyMontana1,7200.652,642.2
3184Edwards CountyTexas1,3700.652,117.9
3185Blaine CountyNebraska4580.64710.7
3186Prairie CountyMontana1,1120.641,736.6
3187Borden CountyTexas5670.63897.4
3188Culberson CountyTexas2,2670.593,812.2
3189Sioux CountyNebraska1,1880.572,066.7
3190Arthur CountyNebraska3960.55715.2
3191Catron CountyNew Mexico3,8270.556,924.2
3192Powder River CountyMontana1,7810.543,298.2
3193Slope CountyNorth Dakota6280.521,215.3
3194Harding CountySouth Dakota1,3310.52,671.6
3195Aleutians East BoroughAlaska3,4790.56,985.2
3196McMullen CountyTexas5440.481,139.8
3197Kusilvak Census AreaAlaska7,9320.4617,151.5
3198Bethel Census AreaAlaska18,3910.4540,654.9
3199Eureka CountyNevada1,8670.454,175.7
3200Clark CountyIdaho7830.441,763.1

Read the differences behind ranks 3101–3200

The median density among these 100 entries is 1 people per mi². The first and last entries span 1.1 people per square mile. This median describes the entries on this page, not the full national dataset. Pagination is a browsing boundary, not a distinct geographic region.

Adjacent ranks can differ by a handful of residents or by many thousands. Open a county profile for its population trend since 2020, land area, and state comparisons.

Where the entries on this page are located

  • Texas19 entries · 19% of this page
  • Nebraska15 entries · 15% of this page
  • Montana14 entries · 14% of this page
  • Alaska9 entries · 9% of this page
  • South Dakota9 entries · 9% of this page
  • Colorado6 entries · 6% of this page

The remaining 10 jurisdictions contribute 28 entries. The list above shows the six most represented, with alphabetical ordering when counts tie.

These counts describe representation in this slice of the ranking. They do not measure a state’s share of national land or population. Compare the first and last county equivalents on this page to inspect land, water, and total area separately.

Read the geographic explanation behind this ranking, or return to the ranking overview for the national distribution and guidance on selecting a measurement.

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Population rankings use Census Bureau Vintage 2025 estimates; density rankings divide them by original ALAND square meters. Land rankings use original ALAND square meters; total-area rankings use ALAND + AWATER. Exact ties use ascending GEOID. Displayed square-mile values are rounded. Read the methodology.