US County Area home

Most populous counties

County equivalents ranked by the Census Bureau’s latest July 1 population estimate. Land area and density are shown alongside, because a populous county is not necessarily a dense one.

Ranks 401–500

Vintage 2025 population estimates · 2026 Gazetteer land area · 3,222 county equivalents · page 5 of 33

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What this part of the ranking shows

This page runs from Kenton County, Kentucky at 175,779 residents to Saline County, Arkansas at 133,288 residents. The 100 entries represent 38 state-level jurisdictions. North Carolina has the most entries on this page (6, tied for the lead).

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 populous counties, ranks 401 through 500. Population is the July 1, 2025 estimate; density is per square mile of land.
RankCounty / equivalentStatePopulationPer mi²Land mi²
401Kenton CountyKentucky175,7791,096160.4
402Scott CountyIowa175,259383458.1
403Wilson CountyTennessee175,033306571.1
404Brunswick CountyNorth Carolina174,702206849.5
405Greene CountyOhio174,322421413.6
406Johnson CountyIndiana174,262544320.4
407Winnebago CountyWisconsin174,218401434.7
408Ector CountyTexas173,801194897.9
409Kent CountyRhode Island173,4951,029168.6
410Indian River CountyFlorida172,799344502.6
411Yellowstone CountyMontana172,692662,633.4
412Kanawha CountyWest Virginia172,381191901.7
413Citrus CountyFlorida171,666295582
414McLean CountyIllinois171,4191451,183.2
415Stafford CountyVirginia170,803636268.5
416Wyandotte CountyKansas170,5971,125151.6
417Catawba CountyNorth Carolina170,172424401.4
418Fairfield CountyOhio169,752337504.4
419Pueblo CountyColorado169,277712,386.6
420Columbia CountyGeorgia169,189583290.2
421Chittenden CountyVermont169,115315536.9
422Kenosha CountyWisconsin168,448620271.8
423Madera CountyCalifornia167,927792,136.7
424Monroe CountyPennsylvania167,179275608.4
425Olmsted CountyMinnesota166,731255653.5
426Rock CountyWisconsin166,472232718.2
427Martin CountyFlorida166,272306543.9
428Beaver CountyPennsylvania166,032382434.7
429Stearns CountyMinnesota164,1101221,342.9
430Hampshire CountyMassachusetts164,065311527.2
431Sullivan CountyTennessee163,759396413.5
432Portage CountyOhio163,404335487.5
433Mesa CountyColorado162,845493,328.7
434Schenectady CountyNew York162,581794204.7
435Rankin CountyMississippi162,181209775.5
436Alexandria cityVirginia160,66210,75714.9
437Franklin CountyPennsylvania160,652208772.3
438Maui CountyHawaii160,5921381,161.5
439Rensselaer CountyNew York160,510246652.5
440St. Clair CountyMichigan160,486222721.5
441Coweta CountyGeorgia160,240363441
442Johnson CountyIowa160,044261613
443Sandoval CountyNew Mexico159,565433,710.2
444Jackson CountyMichigan159,552227701.9
445Scott CountyMinnesota159,017447356.1
446Ouachita ParishLouisiana158,542260610.1
447Merrimack CountyNew Hampshire158,078169932.9
448Penobscot CountyMaine157,967473,397
449Sumter CountyFlorida157,772283557.1
450Washington CountyMaryland157,731345457.8
451Wright CountyMinnesota157,559238661.2
452Bibb CountyGeorgia157,556632249.4
453Centre CountyPennsylvania157,3931421,107.3
454Cumberland CountyNew Jersey157,148325483.4
455Santa Fe CountyNew Mexico156,907821,910.4
456Monroe CountyMichigan156,004284549.4
457Spotsylvania CountyVirginia155,388387401.9
458Rowan CountyNorth Carolina155,096303511.6
459Livingston ParishLouisiana155,036239648.1
460Kings CountyCalifornia154,3271111,391
461Douglas CountyGeorgia154,293771200.1
462Grayson CountyTexas153,613165932.8
463Orange CountyNorth Carolina152,498384397.6
464Berrien CountyMichigan152,444268567.8
465Randall CountyTexas152,351167912.7
466Harnett CountyNorth Carolina150,137252595.1
467Taylor CountyTexas150,077164915.5
468Carolina MunicipioPuerto Rico149,8743,30445.4
469Randolph CountyNorth Carolina149,516191782.4
470Warren CountyKentucky149,375276541.7
471Sussex CountyNew Jersey148,063286518.5
472Jackson CountyMississippi147,666204722.8
473Lebanon CountyPennsylvania146,380405361.8
474Kendall CountyIllinois145,470454320.2
475Boone CountyKentucky145,316590246.3
476Schuylkill CountyPennsylvania145,085186778.8
477Cache CountyUtah145,0001241,164.7
478Coconino CountyArizona144,3687.818,616.4
479Blount CountyTennessee143,820257558.8
480Monroe CountyIndiana143,345363394.5
481Rock Island CountyIllinois141,869332427.5
482Tangipahoa ParishLouisiana141,346179791.2
483Washington CountyTennessee141,199432326.5
484Rockwall CountyTexas140,7381,106127.2
485Flagler CountyFlorida140,360289486.2
486Berkeley CountyWest Virginia139,522434321.1
487Marathon CountyWisconsin139,432901,545.2
488Washington CountyWisconsin139,238323430.6
489Pickens CountySouth Carolina139,198280497
490Florence CountySouth Carolina138,504173800.5
491Hampton cityVirginia137,3152,66851.5
492Bonneville CountyIdaho135,771731,866
493Clark CountyOhio135,340342395.9
494Ascension ParishLouisiana135,105466290
495Madison CountyIndiana135,088299451.9
496Strafford CountyNew Hampshire135,043367367.5
497Wood CountyOhio134,176217617.2
498Faulkner CountyArkansas133,979207647.2
499Calhoun CountyMichigan133,408189706.3
500Saline CountyArkansas133,288184723.5

Read the differences behind ranks 401–500

The median population among these 100 entries is 157,645. The first and last entries span 42,491 residents. 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 Carolina6 entries · 6% of this page
  • Pennsylvania6 entries · 6% of this page
  • Florida5 entries · 5% of this page
  • Michigan5 entries · 5% of this page
  • Ohio5 entries · 5% of this page
  • Texas5 entries · 5% of this page

The remaining 32 jurisdictions contribute 68 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.