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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 601–700

Vintage 2025 population estimates · 2026 Gazetteer land area · 3,222 county equivalents · page 7 of 33

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What this part of the ranking shows

This page runs from Blair County, Pennsylvania at 228 people per mi² to Caldwell County, North Carolina at 172 people per mi². The 100 entries represent 31 state-level jurisdictions. North Carolina has the most entries on this page (12).

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 601 through 700. Population is the July 1, 2025 estimate; density is per square mile of land.
RankCounty / equivalentStatePopulationPer mi²Land mi²
601Blair CountyPennsylvania119,541228525.1
602Jackson CountyMichigan159,552227701.9
603Wood CountyWest Virginia82,385225366.5
604York CountyMaine222,434224991.2
605Sangamon CountyIllinois194,170224868.2
606Cleveland CountyNorth Carolina103,325223464.3
607St. Clair CountyMichigan160,486222721.5
608Yolo CountyCalifornia224,4102221,013
609Wilson CountyNorth Carolina81,150221367.6
610Wayne CountyNorth Carolina122,278221553.9
611Scott CountyKentucky62,262221282.2
612Tompkins CountyNew York104,047219474.7
613Morgan CountyAlabama126,483218579.7
614Limestone CountyAlabama122,928218563.4
615Jefferson CountyTennessee60,024218275.2
616Wood CountyOhio134,176217617.2
617Putnam CountyTennessee86,612216401.1
618Champaign CountyIllinois209,972211996.1
619Bartholomew CountyIndiana85,729211406.9
620Wayne CountyOhio116,758210555
621Rankin CountyMississippi162,181209775.5
622Collier CountyFlorida417,1312091,997
623Canadian CountyOklahoma187,189209896.6
624Glynn CountyGeorgia87,599209419.6
625Midland CountyTexas187,855209900.4
626Santa Rosa CountyFlorida211,1152091,012.4
627Grand Traverse CountyMichigan96,729208464.3
628Lancaster CountySouth Carolina114,296208549.2
629Franklin CountyPennsylvania160,652208772.3
630Adams CountyPennsylvania107,594207518.6
631Faulkner CountyArkansas133,979207647.2
632Wichita CountyTexas129,555206627.6
633Brunswick CountyNorth Carolina174,702206849.5
634Dukes CountyMassachusetts21,219206103.2
635Buchanan CountyMissouri83,540205408.3
636Parker CountyTexas184,767204903.7
637Jackson CountyMississippi147,666204722.8
638Dallas CountyIowa118,457201588.2
639Tazewell CountyIllinois130,049201646.5
640Salem CountyNew Jersey66,280200331.9
641Jasper CountyMissouri127,428200638.5
642Warren CountyVirginia42,740199214.6
643Cole CountyMissouri77,908199391.6
644Floyd CountyGeorgia101,378199509.8
645Peach CountyGeorgia29,877199150.3
646Chemung CountyNew York80,415197407.3
647Northumberland CountyPennsylvania89,920196457.7
648Calcasieu ParishLouisiana208,4661961,064.2
649Etowah CountyAlabama103,886194535.1
650Ector CountyTexas173,801194897.9
651Maury CountyTennessee118,131193613.1
652Calhoun CountyAlabama115,834191605.9
653Kanawha CountyWest Virginia172,381191901.7
654Randolph CountyNorth Carolina149,516191782.4
655Walworth CountyWisconsin106,127191555.4
656Boone CountyIndiana80,689191422.9
657Boone CountyIllinois53,568191280.7
658Eaton CountyMichigan109,581191575.2
659Houston CountyAlabama110,318190579.8
660Calhoun CountyMichigan133,408189706.3
661Cambria CountyPennsylvania128,968187688
662Columbiana CountyOhio99,377187531.9
663Oneida CountyNew York226,3921871,212.4
664Las Marías MunicipioPuerto Rico8,63818646.4
665Schuylkill CountyPennsylvania145,085186778.8
666Lee CountyMississippi83,731186450
667LaPorte CountyIndiana111,294186598.3
668Pasquotank CountyNorth Carolina42,201186226.9
669St. John the Baptist ParishLouisiana39,875186214.5
670Morgan CountyIndiana74,967186403.9
671Saline CountyArkansas133,288184723.5
672Gloucester CountyVirginia40,097184217.8
673Nash CountyNorth Carolina99,365184540.4
674Marshall CountyAlabama103,537183566
675Tuscaloosa CountyAlabama241,3681831,320.9
676Leavenworth CountyKansas84,590183463.4
677St. Charles ParishLouisiana50,586182277.7
678Habersham CountyGeorgia50,416182276.9
679Hardin CountyKentucky113,482182623.9
680Madison CountyTennessee100,790181557.2
681Marion CountyWest Virginia55,584180308.8
682Tangipahoa ParishLouisiana141,346179791.2
683Los Alamos CountyNew Mexico19,407178109.1
684Northeastern Connecticut Planning RegionConnecticut98,096177553.9
685Story CountyIowa101,291177572.5
686Napa CountyCalifornia132,949177752
687Troup CountyGeorgia72,844176414
688Ontario CountyNew York113,130176644
689Boyle CountyKentucky31,632175180.3
690Watauga CountyNorth Carolina54,786175312.4
691Burke CountyNorth Carolina88,655175506.3
692Stanly CountyNorth Carolina68,830174395.1
693Davie CountyNorth Carolina45,855174263.7
694Fresno CountyCalifornia1,035,4561745,958.6
695Warrick CountyIndiana66,803174384.6
696Gordon CountyGeorgia61,701173356.5
697Florence CountySouth Carolina138,504173800.5
698Carbon CountyPennsylvania65,868173381.4
699Christian CountyMissouri96,725172562.6
700Caldwell CountyNorth Carolina81,105172471.9

Read the differences behind ranks 601–700

The median density among these 100 entries is 193 people per mi². The first and last entries span 56 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

  • North Carolina12 entries · 12% of this page
  • Alabama7 entries · 7% of this page
  • Pennsylvania7 entries · 7% of this page
  • Georgia6 entries · 6% of this page
  • Indiana5 entries · 5% of this page
  • Michigan5 entries · 5% of this page

The remaining 25 jurisdictions contribute 58 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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Browse by state for a complete state ranking.

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.