美国人口最多县份列表

以下为美国前100个人口最多的县份列表，数据来源于2020年美国人口普查以及2021年7月的预估。

该列表中的很多县囊括了美国各地的主要城市或大都会区，同时也包括六个合并市县，它们分别为火奴鲁鲁、纳什维尔、费拉德尔菲亚、旧金山、杜瓦尔以及丹佛。除此之外纽约县、布朗克斯县、国王县、皇后县和里士满县既是纽约州的县，同时也是纽约市的行政区，它们统一受纽约市政府的节制。独立市不计入本表。

以下列表中有许多县位于南加州、芝加哥、德克萨斯州以及纽约，大致和大城市的分布相符。由于美国西部的很多县面积较大，因此即使这些县人口密度不是很高，也能拥有比较多的总人口。

列表
排名县州 陆地面积2020年4月1日普查数据2021年7月1日预估数据 数据变化县治 km2mi2数值变化%1洛杉矶县10,509.874,057.8810,014,0099,829,544-184,465-1.8洛杉矶2库克县2,448.38945.335,275,5415,173,146-102,395-1.9芝加哥3哈里斯县4,411.991,703.484,731,1454,728,030-3,115-0.1休斯顿4马里科帕县23,828.269,200.144,420,5684,496,58876,0201.7菲尼克斯5圣迭戈县10,895.124,206.633,298,6343,286,069-12,565-0.4圣迭戈6奥兰治县2,047.56790.573,186,9893,167,809-19,180-0.6圣安娜7迈阿密-戴德县4,915.061,897.722,701,7672,662,777-38,990-1.4迈阿密8国王县183.4170.822,736,0742,641,052-95,022-3.5纽约市布鲁克林9达拉斯县2,256.60871.282,613,5392,586,050-27,489-1.1达拉斯10里弗赛德县18,664.707,206.482,418,1852,458,39540,2101.7里弗赛德11皇后县281.10108.532,405,4642,331,143-74,321-3.1 纽约市皇后区12克拉克县20,438.717,891.432,265,4612,292,47627,0151.2拉斯维加斯13金县5,479.292,115.572,269,6752,252,305-17,370-0.8西雅图14圣贝纳迪诺县51,947.2320,056.942,181,6542,194,71013,0560.6圣贝纳迪诺15塔兰特县2,236.74863.612,110,6402,126,47715,8370.8沃斯堡16贝尔县3,211.121,239.822,009,3242,028,23618,9120.9圣安东尼奥17布劳沃德县3,133.331,209.791,944,3751,930,983-13,392-0.7劳德代尔堡18圣克拉拉县3,341.341,290.101,936,2591,885,508-50,751-2.6圣何塞19韦恩县1,585.28612.081,793,5611,774,816-18,745-1.0底特律20阿拉梅达县1,914.05739.021,682,3531,648,556-33,797-2.0奥克兰21米德尔塞克斯县2,118.14817.821,632,0021,614,742-17,260-1.1洛厄尔和剑桥22萨克拉门托县2,498.42964.641,585,0551,588,9213,8660.2萨克拉门托23纽约县59.1322.831,694,2511,576,876-117,375-6.9纽约市曼哈顿24费拉德尔菲亚县347.32134.101,603,7971,576,251-27,546-1.7费城25萨福克县2,362.20912.051,525,9201,526,3444240.0河头镇26棕榈滩县5,100.001,970.001,492,1911,497,9875,7960.4西棕榈滩27希尔斯伯勒县 2,642.341,020.211,459,7621,478,19418,4321.3坦帕28布朗克斯县109.0342.101,472,6541,424,948-47,706-3.2纽约市布朗克斯29橙县2,339.87903.431,429,9081,422,746-7,162-0.5奥兰多30拿骚县737.41284.721,395,7741,390,907-4,867-0.3米尼奥拉31富兰克林县1,378.36532.191,323,8071,321,414-2,393-0.2哥伦布32特拉维斯县2,564.61990.201,290,1881,305,15414,9661.2奥斯汀33奥克兰县2,247.24867.661,274,3951,270,017-4,378-0.3庞蒂亚克34亨内平县1,433.79553.591,281,5651,267,416-14,149-1.1明尼阿波利斯35凯霍加县1,184.12457.191,264,8171,249,387-15,430-1.2克利夫兰36亚利加尼县1,890.88730.071,250,5781,238,090-12,488-1.0匹兹堡37盐湖县1,922.50742.281,185,2381,186,4211,1830.1盐湖城38康特拉科斯塔县1,854.27715.941,165,9271,161,413-4,514-0.4马丁内斯39马丁内斯2,163.21835.221,129,4101,150,20420,7941.8罗利40费尔法克斯县1,012.60390.971,150,3091,139,720-10,589-0.9费尔法克斯41梅克伦堡县1,356.75523.841,115,4821,122,2766,7940.6夏洛特42科林县2,178.76841.221,064,4651,109,46244,9974.2麦金尼43富尔顿县1,363.98526.631,066,7101,065,334-1,376-0.1亚特兰大44蒙哥马利县1,272.34491.251,062,0611,054,827-7,234-0.7洛克维尔45皮马县23,794.319,187.041,043,4331,052,0308,5970.8图森46弗雷斯诺县15,431.135,957.991,008,6541,013,5814,9270.5弗雷斯诺47火奴鲁鲁市县1,555.92600.741,016,5081,000,890-15,618-1.5火奴鲁鲁48杜瓦尔县1,974.07762.19995,567999,9354,3680.4杰克逊维尔49韦斯特切斯特县1,114.98430.501,004,457997,895-6,562-0.7白原市50圣路易斯县1,315.20507.801,004,125997,187-6,938-0.7克莱顿51马里昂县1,026.41396.30977,203971,102-6,101-0.6印第安纳波利斯52格威内特县1,114.69430.38957,062964,5467,4840.8劳伦斯维尔53费尔菲尔德县1,618.46624.89957,419959,7682,3490.2布里奇波特54皮尼拉斯县709.14273.80959,107956,615-2,492-0.3克利尔沃特55乔治王子县1,250.16482.69967,201955,306-11,895-1.2上马尔伯勒56卑尔根县603.49233.01955,732953,819-1,913-0.2哈肯萨克57伊利县2,700.561,042.69954,236950,683-3,553-0.4布法罗58登顿县2,275.13878.43906,422941,64735,2253.9登顿59密尔沃基县625.23241.40939,489928,059-11,430-1.2密尔沃基60皮尔斯县4,324.011,669.51921,130925,7084,5780.5塔科马61杜佩奇县848.22327.50932,877924,885-7,992-0.9惠顿62谢尔比县1,976.61763.17929,744924,454-5,290-0.6孟菲斯63克恩县21,061.578,131.92909,235917,6738,4380.9贝克斯菲尔德64哈特福德县1,903.89735.10899,498896,854-2,644-0.3哈特福德65伊达尔戈县4,068.521,570.87870,781880,3569,5751.1爱丁堡66马科姆县1,241.18479.22881,217876,792-4,425-0.5芒特克莱门斯67埃尔帕索县2,622.861,012.69865,657867,9472,2900.3埃尔帕索68纽黑文县1,565.66604.51864,835863,700-1,135-0.1纽黑文69伍斯特县3,912.881,510.77862,111862,029-820.0伍斯特70米德尔塞克斯县800.08308.91863,162860,807-2,355-0.3新不伦瑞克71蒙哥马利县1,251.07483.04856,553860,5784,0250.5诺里斯敦72本德堡县2,292885822,779858,52735,7484.3里士满德73埃塞克斯县326.89126.21863,728854,917-8,811-1.0纽瓦克74巴尔的摩县1,549.59598.30854,535849,316-5,219-0.6陶森75文图拉县4,773.691,843.13843,843839,784-4,059-0.5文图拉76斯诺霍米什县5,406.012,087.27827,957833,5405,5830.7埃弗里特77汉密尔顿县1,051.30405.91830,639826,139-4,500-0.5辛辛那堤78旧金山市县121.4046.87873,965815,201-58,764-6.7旧金山市县79埃塞克斯县1,275.73492.56809,829807,074-2,755-0.3塞勒姆和劳伦斯80姆尔特诺默县1,117.05431.30815,428803,377-12,051-1.5波特兰81俄克拉何马县1,835.83708.82796,292798,5752,2830.3俄克拉何马城82圣华金县3,603.511,391.32779,233789,41010,1771.3斯托克顿83李县2,031.88784.51760,822787,97627,1543.6麦尔兹堡84杰斐逊县985.27380.42782,969777,874-5,095-0.7路易维尔85萨福克县150.6258.15797,936771,245-26,691-3.3波士顿86科布县879.43339.55766,149766,8026530.1玛丽埃塔87迪卡尔布县693.03267.58764,382757,718-6,664-0.9迪凯特88门罗县1,702.15657.21759,443755,160-4,283-0.6罗切斯特89波尔克县4,6601,798725,046753,52028,4743.9巴托90圣马特奥县1,161.37448.41764,442737,888-26,554-3.5雷德伍德城91埃尔帕索县5,508.392,126.80730,395737,8677,4721.0科罗拉多斯普林斯92诺福克县1,025.91396.11725,981724,505-1,476-0.2戴德姆93杰克逊县1,565.55604.46717,204716,862-3420.0独立城和堪萨斯城94丹佛市县401.36154.97715,522711,463-4,059-0.6丹佛市县95莱克县1,149.10443.67714,342711,239-3,103-0.4沃基根96戴维森县1,305.44504.03715,884703,953-11,931-1.7纳什维尔97哈德逊县119.6346.19724,854702,463-22,391-3.1泽西市98威尔县2,167.58836.91696,355697,2528970.1乔利埃特99犹他县5,188.912,003.45659,399684,98625,5873.9普若佛100伯纳利欧县3,006.531,160.83676,444674,393-2,051-0.3阿尔伯克基

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参考文献

Category:美國的縣
Category:美国行政区划列表
Category:美國人口