US County Populations 2025

County
State
2025 Pop.
2020 Pop.
Change (2020)
Los Angeles CountyCalifornia9,550,5059,992,813-4.43%
Cook CountyIllinois5,038,0845,263,608-4.28%
Harris CountyTexas4,942,7014,734,7924.39%
Maricopa CountyArizona4,645,9474,445,0594.52%
San Diego CountyCalifornia3,255,5673,295,298-1.21%
Orange CountyCalifornia3,106,5213,185,734-2.49%
Miami-Dade CountyFlorida2,714,4892,695,6850.7%
Dallas CountyTexas2,615,0882,610,1120.19%
Riverside CountyCalifornia2,528,8442,422,9934.37%
Kings CountyNew York2,504,6132,718,447-7.87%
Clark CountyNevada2,364,6492,274,8873.95%
King CountyWashington2,283,5182,274,2820.41%
Tarrant CountyTexas2,237,5492,115,8405.75%
Queens CountyNew York2,199,4722,388,864-7.93%
San Bernardino CountyCalifornia2,197,0172,183,3910.62%
Bexar CountyTexas2,142,6552,015,5016.31%
Broward CountyFlorida1,993,8151,943,3982.59%
Santa Clara CountyCalifornia1,876,1061,931,168-2.85%
Wayne CountyMichigan1,735,6231,789,586-3.02%
Middlesex CountyMassachusetts1,638,2681,628,2350.62%
Alameda CountyCalifornia1,610,0461,680,466-4.19%
New York CountyNew York1,603,2671,677,232-4.41%
Sacramento CountyCalifornia1,584,1041,586,566-0.16%
Hillsborough CountyFlorida1,579,7461,466,2557.74%
Palm Beach CountyFlorida1,561,6691,494,2824.51%
Philadelphia CountyPennsylvania1,517,9541,600,684-5.17%
Suffolk CountyNew York1,513,5621,522,064-0.56%
Orange CountyFlorida1,510,7261,431,6795.52%
Nassau CountyNew York1,374,5571,390,491-1.15%
Travis CountyTexas1,349,7831,296,6134.1%
Franklin CountyOhio1,334,7291,324,4410.78%
Bronx CountyNew York1,305,8121,461,151-10.63%
Oakland CountyMichigan1,269,2281,272,493-0.26%
Collin CountyTexas1,268,0871,075,73617.88%
Hennepin CountyMinnesota1,262,0071,281,649-1.53%
Wake CountyNorth Carolina1,229,2691,130,4838.74%
Cuyahoga CountyOhio1,225,2761,262,573-2.95%
Allegheny CountyPennsylvania1,209,2651,249,565-3.23%
Mecklenburg CountyNorth Carolina1,202,9531,117,4237.65%
Salt Lake CountyUtah1,184,3011,186,983-0.23%
Contra Costa CountyCalifornia1,151,0371,166,069-1.29%
Fairfax CountyVirginia1,147,0161,148,627-0.14%
Fulton CountyGeorgia1,089,9191,069,3941.92%
Pima CountyArizona1,074,5341,045,1752.81%
Montgomery CountyMaryland1,069,2881,060,9040.79%
Denton CountyTexas1,067,589914,39816.75%
Duval CountyFlorida1,058,444997,7846.08%
Fresno CountyCalifornia1,020,7681,009,5521.11%
Gwinnett CountyGeorgia998,232958,3594.16%
Westchester CountyNew York988,9791,001,453-1.25%
Capitol Planning RegionConnecticut981,848962,4362.02%
St. Louis CountyMissouri979,5951,003,130-2.35%
Honolulu CountyHawaii978,5681,012,399-3.34%
Fort Bend CountyTexas972,496829,10917.29%
Marion CountyIndiana966,934976,659-1%
Bergen CountyNew Jersey966,128953,6901.3%
Pinellas CountyFlorida961,204959,7930.15%
Prince George's CountyMaryland948,330965,365-1.76%
Erie CountyNew York941,595952,342-1.13%
Pierce CountyWashington933,130923,5891.03%
DuPage CountyIllinois920,311931,317-1.18%
Hidalgo CountyTexas918,841872,8565.27%
Milwaukee CountyWisconsin912,459938,550-2.78%
Kern CountyCalifornia907,958905,9100.23%
Shelby CountyTennessee897,412929,763-3.48%
Polk CountyFlorida878,226730,15820.28%
Macomb CountyMichigan876,833880,238-0.39%
Montgomery CountyPennsylvania876,138856,9982.23%
El Paso CountyTexas875,162866,6060.99%
Worcester CountyMassachusetts874,852859,6691.77%
Middlesex CountyNew Jersey868,681861,4080.84%
Lee CountyFlorida858,937765,54712.2%
Essex CountyNew Jersey853,903859,974-0.71%
Snohomish CountyWashington853,379829,9332.83%
Baltimore CountyMaryland842,137853,387-1.32%
Hamilton CountyOhio831,732830,3770.16%
Ventura CountyCalifornia823,028843,371-2.41%
Oklahoma CountyOklahoma820,392798,2412.77%
Essex CountyMassachusetts817,269807,7911.17%
San Joaquin CountyCalifornia814,309780,6174.32%
San Francisco CountyCalifornia811,416870,518-6.79%
Cobb CountyGeorgia786,549766,3782.63%
Multnomah CountyOregon779,968816,514-4.48%
Montgomery CountyTexas774,954625,29123.93%
Jefferson CountyKentucky770,242782,845-1.61%
Suffolk CountyMassachusetts767,651797,181-3.7%
DeKalb CountyGeorgia765,418764,4890.12%
Utah CountyUtah752,138663,59513.34%
El Paso CountyColorado751,453732,3842.6%
Williamson CountyTexas747,027615,55221.36%
Monroe CountyNew York743,672757,551-1.83%
Norfolk CountyMassachusetts731,481724,5540.96%
Jackson CountyMissouri723,244717,6150.78%
Denver CountyColorado722,825717,6060.73%
Davidson CountyTennessee722,300716,0590.87%
San Mateo CountyCalifornia721,201762,479-5.41%
Hudson CountyNew Jersey711,654721,879-1.42%
Lake CountyIllinois706,482713,281-0.95%
Will CountyIllinois706,092696,8261.33%
District of ColumbiaDistrict of Columbia695,018670,8393.6%
Tulsa CountyOklahoma694,482670,7023.55%
Pasco CountyFlorida680,706566,15620.23%
Brevard CountyFlorida670,523608,77510.14%
Bernalillo CountyNew Mexico668,844676,853-1.18%
Providence CountyRhode Island666,997659,9631.07%
Ocean CountyNew Jersey666,265638,4654.35%
Kent CountyMichigan666,222658,4921.17%
Jefferson CountyAlabama658,517674,717-2.4%
Arapahoe CountyColorado655,645655,2720.06%
Bucks CountyPennsylvania646,838646,1730.1%
Monmouth CountyNew Jersey639,941642,836-0.45%
Johnson CountyKansas628,529611,1492.84%
Western CT Planning RegionConnecticut626,007618,3681.24%
Volusia CountyFlorida611,741555,77610.07%
Anne Arundel CountyMaryland597,052589,1061.35%
Washington CountyOregon596,423601,130-0.78%
Douglas CountyNebraska596,408585,4311.88%
Dane CountyWisconsin590,525562,6154.96%
Bristol CountyMassachusetts586,035576,7721.61%
New Castle CountyDelaware585,268570,9182.51%
Greenville CountySouth Carolina578,418527,2499.7%
Delaware CountyPennsylvania578,414576,3560.36%
Jefferson CountyColorado577,476583,081-0.96%
Union CountyNew Jersey577,344573,6600.64%
South Central CT Planning RegionConnecticut567,670564,0760.64%
Lancaster CountyPennsylvania562,447552,8211.74%
Baltimore cityMaryland557,503583,157-4.4%
Guilford CountyNorth Carolina556,684539,3213.22%
Chester CountyPennsylvania556,076534,8303.97%
Spokane CountyWashington554,885541,1752.53%
Stanislaus CountyCalifornia551,838553,257-0.26%
Adams CountyColorado545,077520,5004.72%
Plymouth CountyMassachusetts539,428530,2001.74%
Ada CountyIdaho536,011498,2787.57%
Summit CountyOhio535,661539,821-0.77%
Sedgwick CountyKansas534,671524,8211.88%
Montgomery CountyOhio534,440537,119-0.5%
Ramsey CountyMinnesota533,619551,716-3.28%
Camden CountyNew Jersey532,290523,1221.75%
Clark CountyWashington529,976505,3384.88%
Pinal CountyArizona522,643430,18721.49%
Morris CountyNew Jersey520,831508,4392.44%
Kane CountyIllinois516,668516,1810.09%
Polk CountyIowa513,397493,0224.13%
Passaic CountyNew Jersey512,917523,439-2.01%
Knox CountyTennessee511,247480,5166.4%
Lake CountyIndiana502,480498,9570.71%
Washoe CountyNevada500,106487,7102.54%
Seminole CountyFlorida495,567471,4555.11%
Prince William CountyVirginia494,896482,8342.5%
Richmond CountyNew York489,345494,598-1.06%
Tulare CountyCalifornia482,636473,9141.84%
Sarasota CountyFlorida481,935436,23710.48%
Sonoma CountyCalifornia480,098488,282-1.68%
Burlington CountyNew Jersey475,299461,6822.95%
York CountyPennsylvania471,822456,7203.31%
Osceola CountyFlorida468,266391,14119.72%
Manatee CountyFlorida464,947401,61915.77%
Onondaga CountyNew York464,163474,192-2.11%
Naugatuck Valley Planning RegionConnecticut461,204449,2852.65%
Hampden CountyMassachusetts459,357464,311-1.07%
Dakota CountyMinnesota455,776440,4233.49%
Lake CountyFlorida453,206386,21617.35%
Virginia Beach cityVirginia450,809459,684-1.93%
Solano CountyCalifornia449,884452,723-0.63%
East Baton Rouge ParishLouisiana445,219455,899-2.34%
Loudoun CountyVirginia443,457422,7054.91%
Marion CountyFlorida437,003377,47215.77%
Santa Barbara CountyCalifornia435,941448,424-2.78%
Berks CountyPennsylvania435,317428,6711.55%
Placer CountyCalifornia434,535405,9277.05%
Charleston CountySouth Carolina434,401409,8995.98%
Richland CountySouth Carolina432,362415,6714.02%
Madison CountyAlabama430,590390,50310.27%
Cameron CountyTexas430,308421,4802.09%
Hillsborough CountyNew Hampshire427,076422,9130.98%
Monterey CountyCalifornia426,401438,322-2.72%
Horry CountySouth Carolina426,140353,76520.46%
Clackamas CountyOregon423,283422,4680.19%
Lucas CountyOhio423,014430,859-1.82%
St. Charles CountyMissouri422,381406,4173.93%
Brazoria CountyTexas420,346373,49312.54%
Collier CountyFlorida417,898377,31010.76%
Waukesha CountyWisconsin417,227407,4962.39%
Jefferson ParishLouisiana413,271439,725-6.02%
Mobile CountyAlabama412,124414,377-0.54%
Orange CountyNew York409,428400,9862.11%
Bell CountyTexas404,671372,2588.71%
St. Lucie CountyFlorida402,986331,44121.59%
Pulaski CountyArkansas401,253399,2740.5%
Genesee CountyMichigan400,720405,777-1.25%
Allen CountyIndiana400,347386,1033.69%
Douglas CountyColorado399,844360,32310.97%
Butler CountyOhio399,673390,8782.25%
Forsyth CountyNorth Carolina399,441383,2024.24%
Chesterfield CountyVirginia395,048365,3118.14%
Hamilton CountyTennessee390,388367,2516.3%
Hamilton CountyIndiana384,009348,99610.03%
Mercer CountyNew Jersey383,455386,466-0.78%
Lehigh CountyPennsylvania380,714374,5011.66%
Rutherford CountyTennessee379,939343,29810.67%
Davis CountyUtah379,847363,7714.42%
Lane CountyOregon379,181383,308-1.08%
Anoka CountyMinnesota379,107364,4994.01%
Spartanburg CountySouth Carolina378,198329,37914.82%
Weld CountyColorado377,794331,45813.98%
Larimer CountyColorado377,159359,9234.79%
Stark CountyOhio372,578374,522-0.52%
Galveston CountyTexas370,458351,5905.37%
Washtenaw CountyMichigan363,600371,834-2.21%
Nueces CountyTexas353,687353,3980.08%
Orleans ParishLouisiana352,574383,241-8%
Somerset CountyNew Jersey352,432344,7542.23%
Westmoreland CountyPennsylvania349,493354,346-1.37%
Marion CountyOregon346,785346,3500.13%
St. Johns CountyFlorida346,186277,09924.93%
Durham CountyNorth Carolina344,092325,5675.69%
Rockland CountyNew York341,707337,3671.29%
Cumberland CountyNorth Carolina340,108335,4701.38%
Howard CountyMaryland337,271332,8141.34%
Henrico CountyVirginia335,174334,9050.08%
Escambia CountyFlorida333,064322,5683.25%
Lancaster CountyNebraska331,280323,1652.51%
Luzerne CountyPennsylvania329,172325,2171.22%
Greater Bridgeport Planning RegionConnecticut328,703324,3871.33%
Benton CountyArkansas327,395286,61814.23%
Lubbock CountyTexas327,298311,5785.05%
Boulder CountyColorado325,815330,938-1.55%
Rockingham CountyNew Hampshire322,801314,6212.6%
Lorain CountyOhio321,668313,4982.61%
Northampton CountyPennsylvania321,473312,7842.78%
Fayette CountyKentucky319,900322,627-0.85%
Lexington CountySouth Carolina318,374295,0477.91%
Albany CountyNew York318,135314,0181.31%
McHenry CountyIllinois315,284309,8821.74%
Cumberland CountyMaine313,016303,5853.11%
Gloucester CountyNew Jersey311,735302,5633.03%
Chatham CountyGeorgia308,915295,0894.69%
Ottawa CountyMichigan308,280296,9073.83%
Greene CountyMissouri307,439299,3282.71%
York CountySouth Carolina306,558284,0287.93%
Frederick CountyMaryland305,093272,78611.84%
Cleveland CountyOklahoma304,611296,2362.83%
Hays CountyTexas303,252243,96824.3%
Thurston CountyWashington299,731295,9981.26%
Clayton CountyGeorgia298,102299,439-0.45%
Cherokee CountyGeorgia297,418268,15610.91%
Dutchess CountyNew York296,232295,9010.11%
Leon CountyFlorida296,175293,9550.76%
Merced CountyCalifornia295,340281,8304.79%
Dauphin CountyPennsylvania290,328286,7101.26%
Alachua CountyFlorida289,900279,7373.63%
Ingham CountyMichigan286,957284,6750.8%
Washington CountyMinnesota284,470268,3895.99%
Anchorage MunicipalityAlaska284,259290,893-2.28%
Forsyth CountyGeorgia284,037252,90112.31%
San Luis Obispo CountyCalifornia280,825281,884-0.38%
Southeastern CT Planning RegionConnecticut280,388278,3420.74%
St. Tammany ParishLouisiana280,275265,0005.76%
Buncombe CountyNorth Carolina280,123269,7023.86%
Winnebago CountyIllinois279,682284,916-1.84%
Sussex CountyDelaware277,633238,62916.35%
Kitsap CountyWashington277,348275,8230.55%
Weber CountyUtah276,858262,9885.27%
Berkeley CountySouth Carolina275,747231,53319.1%
Cumberland CountyPennsylvania275,150260,2585.72%
Atlantic CountyNew Jersey274,875274,1900.25%
Brown CountyWisconsin274,115268,9511.92%
St. Joseph CountyIndiana273,980272,6820.48%
McLennan CountyTexas273,425261,1934.68%
St. Louis cityMissouri272,876300,496-9.19%
Webb CountyTexas272,206267,3631.81%
Williamson CountyTennessee271,904249,5528.96%
Washington CountyArkansas271,283246,7749.93%
Canyon CountyIdaho271,238233,01316.4%
Union CountyNorth Carolina271,012239,47013.17%
Baldwin CountyAlabama267,459233,22714.68%
Henry CountyGeorgia266,895241,85210.35%
Harford CountyMaryland266,302261,2301.94%
Clay CountyMissouri265,456254,1374.45%
Erie CountyPennsylvania265,033270,578-2.05%
Kalamazoo CountyMichigan264,861261,7961.17%
Madison CountyIllinois261,112265,643-1.71%
Warren CountyOhio256,974243,2285.65%
Chesapeake cityVirginia256,740249,7812.79%
Santa Cruz CountyCalifornia256,161270,474-5.29%
Johnston CountyNorth Carolina256,061217,80817.56%
Yakima CountyWashington255,891256,733-0.33%
Yavapai CountyArizona254,783237,2177.41%
Lafayette ParishLouisiana253,822242,1454.82%
Smith CountyTexas251,637234,1997.45%
Jefferson CountyTexas251,286256,133-1.89%
Marin CountyCalifornia250,913261,306-3.98%
Brazos CountyTexas250,247234,5056.71%
Montgomery CountyTennessee249,818221,28112.9%
St. Clair CountyIllinois248,524256,844-3.24%
Cabarrus CountyNorth Carolina248,230227,2199.25%
New Hanover CountyNorth Carolina244,988226,3268.25%
Clay CountyFlorida244,049218,95111.46%
Ellis CountyTexas243,841194,31725.49%
Gaston CountyNorth Carolina243,786228,5326.67%
Delaware CountyOhio241,856215,16612.4%
Saratoga CountyNew York239,197235,7931.44%
Shelby CountyAlabama238,934223,9126.71%
Tuscaloosa CountyAlabama238,739231,5473.11%
Jefferson CountyMissouri235,250226,9373.66%
Arlington CountyVirginia235,130238,814-1.54%
Whatcom CountyWashington234,561227,4493.13%
Lake CountyOhio231,448232,516-0.46%
Barnstable CountyMassachusetts231,049228,0121.33%
Richmond cityVirginia231,007226,9361.79%
Mohave CountyArizona229,236214,1857.03%
Linn CountyIowa229,036230,419-0.6%
Doña Ana CountyNew Mexico228,570220,0603.87%
Norfolk cityVirginia227,674237,789-4.25%
Hall CountyGeorgia226,559203,47311.35%
Oneida CountyNew York225,949231,082-2.22%
Mahoning CountyOhio224,944228,009-1.34%
Hernando CountyFlorida224,551195,62414.79%
Onslow CountyNorth Carolina222,966207,7577.32%
Okaloosa CountyFlorida222,464212,0854.89%
Montgomery CountyAlabama222,338228,342-2.63%
Yuma CountyArizona221,915205,6597.9%
York CountyMaine221,858212,2604.52%
Caddo ParishLouisiana221,290236,945-6.61%
Benton CountyWashington219,999207,4196.07%
Anderson CountySouth Carolina219,924204,1957.7%
Jackson CountyOregon218,966223,620-2.08%
Johnson CountyTexas217,726180,96420.31%
Yolo CountyCalifornia217,596216,2910.6%
Lackawanna CountyPennsylvania216,869215,5390.62%
Sumner CountyTennessee216,540197,4169.69%
Clermont CountyOhio214,558208,7502.78%
Charlotte CountyFlorida213,238187,99513.43%
Minnehaha CountySouth Dakota213,100197,6957.79%
Santa Rosa CountyFlorida213,088189,01112.74%
Deschutes CountyOregon212,573199,4646.57%
Comal CountyTexas212,286163,65929.71%
Washington CountyUtah211,896182,01516.42%
Kaufman CountyTexas211,848147,14043.98%
Harrison CountyMississippi210,950208,8091.03%
Washington CountyPennsylvania210,816209,4340.66%
Hawaii CountyHawaii210,149200,7444.69%
Hinds CountyMississippi209,500226,765-7.61%
Niagara CountyNew York207,437212,126-2.21%
Iredell CountyNorth Carolina207,382187,68310.5%
Sarpy CountyNebraska206,804191,1678.18%
Butte CountyCalifornia206,778210,151-1.61%
Calcasieu ParishLouisiana206,707216,481-4.51%
Elkhart CountyIndiana205,481206,991-0.73%
Beaufort CountySouth Carolina204,643187,8158.96%
Champaign CountyIllinois204,594205,654-0.52%
Cass CountyNorth Dakota203,660184,87610.16%
Richmond CountyGeorgia203,554206,524-1.44%
St. Louis CountyMinnesota202,426200,0831.17%
Bay CountyFlorida201,887174,52515.68%
Muscogee CountyGeorgia200,767207,006-3.01%
Butler CountyPennsylvania200,503194,0773.31%
Guadalupe CountyTexas199,958173,69715.12%
Trumbull CountyOhio199,667201,681-1%
Livingston CountyMichigan198,003193,9682.08%
Racine CountyWisconsin197,917197,5680.18%
DeSoto CountyMississippi197,453186,1226.09%
Outagamie CountyWisconsin195,164190,9662.2%
Kent CountyDelaware193,851182,3156.33%
Broome CountyNew York193,715198,156-2.24%
Boone CountyMissouri192,947184,0474.84%
Hendricks CountyIndiana192,923175,5969.87%
Sangamon CountyIllinois192,171196,144-2.03%
Paulding CountyGeorgia191,986169,58013.21%
El Dorado CountyCalifornia191,071191,245-0.09%
Tippecanoe CountyIndiana189,902186,3871.89%
Canadian CountyOklahoma188,979155,43421.58%
Parker CountyTexas188,606149,55226.11%
Kootenai CountyIdaho188,450172,7859.07%
Lee CountyAlabama188,249174,7547.72%
Midland CountyTexas187,286170,3629.93%
Saginaw CountyMichigan186,600189,882-1.73%
Licking CountyOhio186,073178,7844.08%
Medina CountyOhio185,148182,6461.37%
Alamance CountyNorth Carolina184,259171,9607.15%
Aiken CountySouth Carolina182,934169,1688.14%
Ulster CountyNew York182,359181,2710.6%
Newport News cityVirginia181,394186,047-2.5%
Vanderburgh CountyIndiana180,304180,336-0.02%
Davidson CountyNorth Carolina179,652169,2036.18%
Imperial CountyCalifornia179,291179,612-0.18%
Shasta CountyCalifornia179,224182,002-1.53%
Carroll CountyMaryland178,973172,9413.49%
Muskegon CountyMichigan178,614174,7842.19%
Shawnee CountyKansas178,164178,709-0.3%
Pitt CountyNorth Carolina178,137170,3904.55%
Dorchester CountySouth Carolina177,399162,0439.48%
Lower CT River Valley Planning RegionConnecticut176,681173,2681.97%
Peoria CountyIllinois176,539181,319-2.64%
Houston CountyGeorgia176,372164,3567.31%
Porter CountyIndiana176,309173,3181.73%
Charles CountyMaryland175,697166,7415.37%
Scott CountyIowa175,308174,6090.4%
Citrus CountyFlorida175,072154,56813.27%