US County Populations 2022

According to the most recent United States Census, Los Angeles County in California is the largest county in the nation, with a total population of 10,150,558 – an increase of 3.5% since 2010. Chicago's Cook County follows and, although very large in its own right, is half the size of Los Angeles County with 5,231,356 residents. Harris County in Texas, Maricopa County in Arizona, and San Diego County in California make up the rest of the top five – all have populations in excess of three million.

Counties with Positive Population Growth

Statistics from 2018 show that a number of counties have had substantial population growths since 2010. Fort Bend County in Texas tops the list, with its population having grown from 590,286 in 2010 to well over a population of 764,000 in 2018 – an increase of 30.8%. Three other counties in Texas are also in the top five counties with increased populations. These are Denton County (with an increase of 26.2%), Collin County (24%) and Travis County (19.7%).

Counties with Negative Population Growth

Conversely, while Wayne County is the most populous county in state of Michigan, it has seen its population decrease by 3.7% since 2010, from 1,815,069 to 1,756,598. Counties in two other midwestern states, Missouri and Ohio, have also had population decreases, although both are more modest. Ohio's Cuyahoga County has decreased from 1,278,200 to just around 1,248,000, representing a reduction of 2.5%, while St. Louis County, Missouri's population has decreased from 998,681 in 2010 to 998,216 in 2018. Just one county, Hartford County in Connecticut, shows nearly zero population change, with census figures reporting a population of approximately 895,500 in both 2010 and 2018.

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Name State 2022 Population 2010 Population Growth Since 2010
Los Angeles CountyCalifornia9,934,7109,823,2501.13%
Cook CountyIllinois5,085,0505,199,020-2.19%
Harris CountyTexas4,813,1604,107,67017.17%
Maricopa CountyArizona4,734,4503,825,11023.77%
San Diego CountyCalifornia3,351,7403,103,2108.01%
Orange CountyCalifornia3,174,8503,015,1705.30%
Miami-Dade CountyFlorida2,723,2002,506,9708.63%
Dallas CountyTexas2,654,0102,372,99011.84%
Riverside CountyCalifornia2,544,8202,201,58015.59%
Kings CountyNew York2,505,3902,509,830-0.18%
Clark CountyNevada2,388,5201,952,59022.33%
King CountyWashington2,326,0401,938,35020.00%
San Bernardino CountyCalifornia2,220,0802,040,8508.78%
Queens CountyNew York2,191,6202,234,700-1.93%
Tarrant CountyTexas2,165,7201,817,48019.16%
Bexar CountyTexas2,070,6601,722,84020.19%
Broward CountyFlorida1,972,7901,752,80012.55%
Santa Clara CountyCalifornia1,914,4001,786,0407.19%
Wayne CountyMichigan1,734,0101,815,080-4.47%
Alameda CountyCalifornia1,685,0501,512,99011.37%
New York CountyNew York1,627,6601,588,7702.45%
Middlesex CountyMassachusetts1,621,3901,507,6807.54%
Sacramento CountyCalifornia1,591,9901,421,38012.00%
Philadelphia CountyPennsylvania1,585,4801,528,2803.74%
Palm Beach CountyFlorida1,538,4501,323,62016.23%
Hillsborough CountyFlorida1,532,1201,233,50024.21%
Suffolk CountyNew York1,463,9101,494,340-2.04%
Orange CountyFlorida1,429,1901,148,56024.43%
Bronx CountyNew York1,376,5701,387,300-0.77%
Travis CountyTexas1,356,1001,030,50031.60%
Nassau CountyNew York1,355,0901,341,6701.00%
Franklin CountyOhio1,343,9301,166,20015.24%
Hennepin CountyMinnesota1,289,6001,154,19011.73%
Oakland CountyMichigan1,260,2501,203,1104.75%
Cuyahoga CountyOhio1,215,1301,278,090-4.93%
Allegheny CountyPennsylvania1,212,3401,223,960-0.95%
Salt Lake CountyUtah1,195,6701,032,98015.75%
Wake CountyNorth Carolina1,173,220906,87029.37%
Contra Costa CountyCalifornia1,162,5501,052,54010.45%
Mecklenburg CountyNorth Carolina1,160,170923,24225.66%
Fairfax CountyVirginia1,144,7401,086,1605.39%
Collin CountyTexas1,126,000787,61442.96%
Fulton CountyGeorgia1,105,360925,63219.42%
Pima CountyArizona1,079,450981,6209.97%
Montgomery CountyMaryland1,057,320975,6028.38%
Fresno CountyCalifornia1,020,550932,0399.50%
St. Louis CountyMissouri991,163998,840-0.77%
Duval CountyFlorida985,064865,62813.80%
Marion CountyIndiana982,228904,5918.58%
Pinellas CountyFlorida980,810916,4127.03%
Denton CountyTexas972,605666,76045.87%
Westchester CountyNew York965,385950,6011.56%
Gwinnett CountyGeorgia962,989808,00719.18%
Honolulu CountyHawaii958,678956,2850.25%
Milwaukee CountyWisconsin941,997948,285-0.66%
Fairfield CountyConnecticut941,415919,3552.40%
Shelby CountyTennessee939,569928,4471.20%
Pierce CountyWashington938,652795,39018.01%
Bergen CountyNew Jersey930,360906,2842.66%
Kern CountyCalifornia919,534840,9969.34%
Erie CountyNew York915,657919,152-0.38%
DuPage CountyIllinois909,943917,983-0.88%
Prince George's CountyMaryland908,451866,4194.85%
Hartford CountyConnecticut889,140895,236-0.68%
Hidalgo CountyTexas887,934779,14913.96%
San Francisco CountyCalifornia884,108805,5059.76%
Fort Bend CountyTexas882,509590,25349.51%
Macomb CountyMichigan877,503841,3524.30%
Snohomish CountyWashington849,155715,50018.68%
New Haven CountyConnecticut848,115863,357-1.77%
El Paso CountyTexas846,477803,5765.34%
Montgomery CountyPennsylvania842,888800,8745.25%
Ventura CountyCalifornia839,598825,0971.76%
Worcester CountyMassachusetts835,326800,3914.36%
Baltimore CountyMaryland825,903806,6562.39%
Multnomah CountyOregon824,204737,27611.79%
Hamilton CountyOhio823,557802,2782.65%
Middlesex CountyNew Jersey821,732810,7581.35%
Lee CountyFlorida818,898620,44931.98%
Oklahoma CountyOklahoma817,957720,76213.49%
Suffolk CountyMassachusetts806,187725,77211.08%
Essex CountyNew Jersey800,190784,0372.06%
Essex CountyMassachusetts791,587745,4616.19%
San Joaquin CountyCalifornia791,119687,12715.13%
Polk CountyFlorida779,317603,10229.22%
DeKalb CountyGeorgia772,470692,44311.56%
Cobb CountyGeorgia772,354689,49512.02%
Jefferson CountyKentucky762,725742,0542.79%
San Mateo CountyCalifornia760,249719,6995.63%
Denver CountyColorado760,049603,35925.97%
El Paso CountyColorado745,345627,03118.87%
Monroe CountyNew York738,488744,580-0.82%
District of Columbia CountyDistrict of Columbia718,355605,22618.69%
Norfolk CountyMassachusetts717,410673,0196.60%
Jackson CountyMissouri709,692674,8455.16%
Davidson CountyTennessee705,028627,74612.31%
Will CountyIllinois689,525678,8241.58%
Lake CountyIllinois687,379704,170-2.38%
Bernalillo CountyNew Mexico682,382663,9232.78%
Utah CountyUtah680,380519,99830.84%
Hudson CountyNew Jersey673,771635,6526.00%
Arapahoe CountyColorado670,969574,74716.74%
Kent CountyMichigan667,770602,97510.75%
Tulsa CountyOklahoma663,159604,9739.62%
Williamson CountyTexas662,815426,28755.49%
Montgomery CountyTexas660,254459,20843.78%
Jefferson CountyAlabama656,005658,215-0.34%
Providence CountyRhode Island644,865627,8382.71%
Bucks CountyPennsylvania629,644625,3850.68%
Ocean CountyNew Jersey624,310577,5648.09%
Brevard CountyFlorida622,159543,96514.37%
Washington CountyOregon615,656531,63815.80%
Johnson CountyKansas615,223545,65512.75%
Monmouth CountyNew Jersey613,803630,461-2.64%
Pasco CountyFlorida598,518465,48728.58%
Jefferson CountyColorado593,348535,54810.79%
Anne Arundel CountyMaryland590,367539,2849.47%
Douglas CountyNebraska586,135518,57413.03%
Volusia CountyFlorida574,833494,44016.26%
Delaware CountyPennsylvania571,295558,9812.20%
Bristol CountyMassachusetts568,592549,1663.54%
Baltimore City CountyMaryland566,631620,915-8.74%
New Castle CountyDelaware562,362538,7524.38%
Dane CountyWisconsin560,936489,21814.66%
Stanislaus CountyCalifornia558,262515,1458.37%
Union CountyNew Jersey556,158537,3693.50%
Ramsey CountyMinnesota554,668509,3878.89%
Lancaster CountyPennsylvania550,989520,3195.89%
Guilford CountyNorth Carolina550,875489,61812.51%
Spokane CountyWashington550,383472,08116.59%
Greenville CountySouth Carolina550,305452,69721.56%
Summit CountyOhio539,993541,645-0.30%
Adams CountyColorado535,622443,69120.72%
Chester CountyPennsylvania533,698499,9256.76%
Montgomery CountyOhio531,948535,597-0.68%
Kane CountyIllinois531,452516,0682.98%
Plymouth CountyMassachusetts529,542495,9266.78%
Sedgwick CountyKansas523,716499,1284.93%
Ada CountyIdaho520,056393,35432.21%
Pinal CountyArizona510,738379,09434.73%
Clark CountyWashington508,683426,70419.21%
Camden CountyNew Jersey506,825513,275-1.26%
Polk CountyIowa503,145432,35216.37%
Passaic CountyNew Jersey497,755502,023-0.85%
Washoe CountyNevada493,014421,95416.84%
Lake CountyIndiana488,652495,947-1.47%
Morris CountyNew Jersey488,170492,617-0.90%
Seminole CountyFlorida482,938423,05114.16%
Prince William CountyVirginia482,635406,16918.83%
Knox CountyTennessee482,478432,93811.44%
Sonoma CountyCalifornia481,415484,755-0.69%
Richmond CountyNew York475,792469,6151.32%
Tulare CountyCalifornia471,013442,9696.33%
Hampden CountyMassachusetts460,324464,237-0.84%
Onondaga CountyNew York457,165467,533-2.22%
Sarasota CountyFlorida455,981379,93020.02%
Solano CountyCalifornia453,397413,9679.52%
York CountyPennsylvania452,691435,4133.97%
Virginia Beach City CountyVirginia450,349438,8592.62%
Santa Barbara CountyCalifornia448,656424,2315.76%
Burlington CountyNew Jersey447,161449,129-0.44%
Dakota CountyMinnesota440,964399,21110.46%
Loudoun CountyVirginia437,586315,47838.71%
Monterey CountyCalifornia434,394416,3734.33%
East Baton Rouge ParishLouisiana434,062440,912-1.55%
Manatee CountyFlorida429,851323,42432.91%
Jefferson ParishLouisiana428,320432,610-0.99%
Charleston CountySouth Carolina426,958350,94021.66%
Clackamas CountyOregon426,500376,78813.19%
Cameron CountyTexas426,235407,6304.56%
Lucas CountyOhio424,556441,434-3.82%
Hillsborough CountyNew Hampshire424,210401,0555.77%
Berks CountyPennsylvania423,069412,0392.68%
Richland CountySouth Carolina420,430385,7358.99%
Placer CountyCalifornia416,326350,02118.94%
St. Charles CountyMissouri411,748361,80313.80%
Mobile CountyAlabama411,116413,315-0.53%
Waukesha CountyWisconsin409,226390,0284.92%
Collier CountyFlorida405,005322,58125.55%
Genesee CountyMichigan403,188424,953-5.12%
Lake CountyFlorida398,312297,70933.79%
Osceola CountyFlorida397,636269,83747.36%
Orange CountyNew York393,382373,4455.34%
Lane CountyOregon392,621351,92011.57%
Allen CountyIndiana391,959355,94510.12%
Pulaski CountyArkansas391,890383,5382.18%
Forsyth CountyNorth Carolina391,532351,37411.43%
Madison CountyAlabama390,624336,09516.22%
Brazoria CountyTexas390,395314,42824.16%
Orleans ParishLouisiana387,564347,77211.44%
Butler CountyOhio386,536369,1024.72%
Bell CountyTexas385,505312,84923.22%
Marion CountyFlorida385,130331,33116.24%
Horry CountySouth Carolina384,009270,27442.08%
Hamilton CountyTennessee378,337337,21412.19%
Douglas CountyColorado375,649286,97730.90%
Larimer CountyColorado375,616300,44125.02%
Lehigh CountyPennsylvania372,195350,1646.29%
Stark CountyOhio368,680375,372-1.78%
Davis CountyUtah368,621307,91019.72%

Counties in the United States by Population 2022

County Ranking Articles

Sources