RANKING · 2020 CENSUS · 500 SHOWN OF 3,130

Largest American population, US counties · 2020

US counties ranked by the number of residents who are American ancestry, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. Los Angeles County, California leads at 324,424. 3,130 counties qualify in total. Florida carries 9 of the top 25 entries.

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SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPAMERICAN POPULATIONVS 2010

USUnited States5.8% of US population331,449,28119,364,103–

01Los Angeles County, CACA9,694,934324,424+56%

02Harris County, TXTX5,045,026176,513+16%

03Maricopa County, AZAZ4,689,558170,220−12%

04Broward County, FLFL2,013,317150,948+87%

05Orange County, CACA3,149,507142,885+69%

06Kings County, NYNY2,653,963133,013+69%

07Miami-Dade County, FLFL2,802,029125,440+53%

08Cook County, ILIL5,194,625115,878+42%

09Orange County, FLFL1,528,002111,000+69%

10Dallas County, TXTX2,661,397108,763+1%

11Tarrant County, TXTX2,248,466105,656−21%

12Hillsborough County, FLFL1,574,115104,332+44%

13Lee County, FLFL875,607101,467+51%

14Polk County, FLFL874,79090,862+33%

15San Diego County, CACA3,282,24890,849+19%

16Wake County, NCNC1,257,23590,270+9%

17Wayne County, MIMI1,769,03884,431+71%

18Suffolk County, NYNY1,546,09081,293+156%

19Collin County, TXTX1,297,17979,972+38%

20Palm Beach County, FLFL1,575,72679,612+38%

21Pinellas County, FLFL948,56378,901+32%

22Jefferson County, ALAL665,74278,342+30%

23Riverside County, CACA2,544,91671,763+34%

24Pasco County, FLFL674,51671,015+149%

25Clark County, NVNV2,407,22670,386+38%

26New York County, NYNY1,664,86269,689+27%

27Charleston County, SCSC436,20068,643+104%

28Queens County, NYNY2,358,18266,286+45%

29Bexar County, TXTX2,160,08864,993+5%

30Mecklenburg County, NCNC1,233,38359,770+36%

31Sarasota County, FLFL479,95859,361+185%

32Montgomery County, ALAL225,89159,356+150%

33Jefferson County, KYKY795,22258,243−26%

34Franklin County, OHOH1,361,53658,099+1%

35King County, WAWA2,344,93957,354+6%

36Johnson County, TXTX218,04856,521+354%

37Fulton County, GAGA1,098,79154,629+14%

38Middlesex County, MAMA1,669,97954,385+26%

39Shelby County, TNTN910,22654,040−10%

40Westchester County, NYNY1,015,74352,975+29%

41Marion County, ININ992,19652,680−10%

42Worcester County, MAMA888,50252,251+108%

43Duval County, FLFL1,062,96351,682−10%

44Nassau County, NYNY1,398,93951,416+21%

45San Bernardino County, CACA2,224,09150,701−4%

46Brevard County, FLFL663,98250,648+12%

47Baldwin County, ALAL267,76150,608+89%

48Davidson County, TNTN745,90449,779−21%

49Knox County, TNTN511,45348,665−13%

50Oakland County, MIMI1,288,33747,804+0%

51Salt Lake County, UTUT1,220,91647,415−1%

52Trumbull County, OHOH198,97247,335+35%

53St. Louis County, MOMO990,91146,883−9%

54Mobile County, ALAL411,65846,345+1%

55Fairfax County, VAVA1,167,87346,279+26%

56Gwinnett County, GAGA1,018,09945,213+0%

57DeKalb County, GAGA774,39445,009+90%

58Ventura County, CACA830,85144,598+33%

59Madison County, ALAL433,51644,583+7%

60Denton County, TXTX1,069,34643,141+28%

61Hamilton County, OHOH838,41841,510−21%

62Smith County, TXTX252,54941,084+155%

63Oklahoma County, OKOK822,12540,791−14%

64Travis County, TXTX1,389,67040,752+10%

65Greenville County, SCSC583,12540,378−29%

66Gaston County, NCNC246,55840,308+66%

67Hamilton County, TNTN390,83339,445−28%

68St. Lucie County, FLFL402,44939,308+174%

69Cobb County, GAGA793,34539,220−33%

70Orange County, NYNY417,66938,750+68%

71Montgomery County, TXTX781,19438,420+12%

72Macomb County, MIMI886,22138,113+11%

73Tulsa County, OKOK698,78237,924−22%

74Rockland County, NYNY357,39737,787+179%

75Santa Clara County, CACA1,914,39137,509+49%

76Marshall County, ALAL103,53737,377+176%

77Philadelphia County, PAPA1,574,28137,377+81%

78Horry County, SCSC427,55137,133−6%

79Bowie County, TXTX92,69636,775+190%

80Bronx County, NYNY1,406,33236,664+125%

81Seminole County, FLFL491,88436,451+85%

82Virginia Beach, VAVA453,73736,170−24%

83Allegheny County, PAPA1,225,03535,931−4%

84Cuyahoga County, OHOH1,232,92535,700+0%

85York County, SCSC306,88735,583+81%

86Sacramento County, CACA1,618,46035,330+8%

87Multnomah County, OROR795,39135,182+19%

88Baltimore County, MDMD847,65034,781−14%

89Aiken County, SCSC181,51534,413+6%

90Alameda County, CACA1,636,63034,402+72%

91Pierce County, WAWA946,28834,399+5%

92Montgomery County, PAPA877,64334,211+20%

93Genesee County, MIMI401,09334,030+46%

94Ocean County, NJNJ673,74633,992+35%

95Lancaster County, PAPA563,15933,932−13%

96Robeson County, NCNC119,94133,654+468%

97Monroe County, NYNY750,50633,314+63%

98Montgomery County, MDMD1,074,58233,192+22%

99Pima County, AZAZ1,074,68533,149+22%

100Lake County, FLFL456,06833,044−5%

101Bell County, TXTX402,24832,985+160%

102York County, PAPA473,19732,850−4%

103Carroll County, GAGA131,03632,795+30%

104Lexington County, SCSC317,58832,602−8%

105St. Johns County, FLFL346,32832,491+50%

106Kern County, CACA927,06832,291+45%

107Spartanburg County, SCSC380,85731,960−15%

108Sullivan County, TNTN163,75931,931−21%

109Richmond County, NYNY501,29031,864+128%

110Montgomery County, OHOH539,59831,827−39%

111Collier County, FLFL417,13131,819+121%

112El Paso County, COCO757,04031,567+12%

113Guilford County, NCNC562,23431,396−3%

114Volusia County, FLFL606,57331,121−8%

115Manatee County, FLFL468,20030,419+64%

116St. Charles County, MOMO426,49930,249+30%

117Summit County, OHOH538,37630,210+23%

118Essex County, NJNJ896,37930,071+39%

119Hennepin County, MNMN1,284,78429,836+34%

120Cleveland County, NCNC103,32529,481+56%

121Norfolk County, MAMA739,74929,394+43%

122Contra Costa County, CACA1,170,07029,248+21%

123Jackson County, MOMO732,99429,121−55%

124Oneida County, NYNY226,39228,748+205%

125East Baton Rouge Parish, LALA456,18028,377−20%

126Arapahoe County, COCO673,82028,033−7%

127Charlotte County, FLFL217,21228,011+41%

128Johnston County, NCNC256,44828,003+13%

129Rutherford County, TNTN386,35227,984−38%

130Williamson County, TXTX752,82727,946+49%

131Anne Arundel County, MDMD603,38027,808+21%

132Snohomish County, WAWA870,65627,797+11%

133Catawba County, NCNC170,17227,725+35%

134Fayette County, KYKY329,75127,720−22%

135Sedgwick County, KSKS538,43327,636−10%

136Prince George's County, MDMD970,37427,635+61%

137Paulding County, GAGA190,99627,367+76%

138Lorain County, OHOH323,21927,278+47%

139Spalding County, GAGA70,77527,227+85%

140Hamilton County, ININ387,03626,641+32%

141Forsyth County, NCNC401,71826,553+1%

142Bernalillo County, NMNM667,60126,354+55%

143Shelby County, ALAL238,55226,141+27%

144Utah County, UTUT759,85926,038+11%

145DuPage County, ILIL934,29825,915+30%

146Bucks County, PAPA647,82825,626+6%

147Fort Bend County, TXTX975,19125,602+16%

148Washington County, TNTN141,19925,450−29%

149Johnson County, KSKS636,90625,446−16%

150Union County, NJNJ601,86325,445+44%

151Wayne County, NCNC122,27825,371+64%

152Houston County, GAGA178,21425,160+45%

153Chesapeake, VAVA255,33225,128−16%

154Pulaski County, ARAR404,61125,027−11%

155Rankin County, MSMS162,18124,948+39%

156Bergen County, NJNJ977,02624,845+19%

157Monmouth County, NJNJ651,03524,713−17%

158New Castle County, DEDE588,02624,651+52%

159Caldwell County, NCNC81,10524,643+62%

160Hendricks County, ININ193,51024,627+87%

161Kanawha County, WVWV172,38124,543−5%

162Butler County, OHOH400,12824,512−55%

163Clackamas County, OROR426,28024,458+35%

164Chesterfield County, VAVA397,14824,225−27%

165Middlesex County, NJNJ883,33524,130+4%

166Allen County, ININ402,32924,114−36%

167Tuscaloosa County, ALAL241,36824,103+26%

168Spokane County, WAWA558,34424,027+17%

169Lee County, ALAL189,88123,975+104%

170Morgan County, ALAL126,48323,645+41%

171Washington County, OROR611,70823,408+40%

172Anderson County, SCSC219,93023,354−20%

173Lake County, ILIL719,33923,348−16%

174San Francisco County, CACA826,07923,168+188%

175Erie County, NYNY946,74123,146−0%

176Loudoun County, VAVA449,74923,115+68%

177Cullman County, ALAL94,00923,054+115%

178Essex County, MAMA826,65322,689−15%

179Cherokee County, GAGA299,27322,604+2%

180Sumner County, TNTN215,53822,539−0%

181Greene County, MOMO309,28622,441−46%

182Bay County, FLFL204,47922,410+13%

183Plymouth County, MAMA546,82922,328+23%

184Wilkes County, NCNC66,23322,223−14%

185Washtenaw County, MIMI370,21422,198+47%

186Nassau County, FLFL106,87921,992+35%

187Caddo Parish, LALA224,22621,969+46%

188Burke County, NCNC88,65521,921+12%

189Cabarrus County, NCNC249,72521,823+18%

190Richland County, SCSC434,95621,650−18%

191Maury County, TNTN118,13121,528+42%

192Ada County, IDID546,14121,358−35%

193Houston County, ALAL110,31821,050+13%

194Cleveland County, OKOK303,97320,961+3%

195Rapides Parish, LALA125,87720,917−30%

196Forsyth County, GAGA282,80520,778−12%

197Clark County, WAWA532,11920,766+18%

198Jefferson County, COCO580,45120,678−2%

199Coweta County, GAGA160,24020,657−24%

200Surry County, NCNC72,28720,576+10%

201Henry County, GAGA264,92220,467−2%

202Citrus County, FLFL171,66620,401−17%

203Floyd County, GAGA101,37820,381+61%

204Carroll County, MDMD176,67720,334+44%

205Franklin County, PAPA160,65220,319+37%

206Hernando County, FLFL221,70120,167+76%

207Bartow County, GAGA120,80020,155+49%

208Northampton County, PAPA324,41120,025+53%

209Escambia County, FLFL333,83419,950−22%

210Providence County, RIRI678,17919,908+97%

211Hampden County, MAMA464,33819,885+66%

212Denver County, COCO740,61319,816+3%

213Marion County, FLFL442,66019,718−10%

214Henrico County, VAVA342,77519,600−17%

215St. Tammany Parish, LALA279,10819,543+6%

216Kent County, MIMI675,23219,500−1%

217Putnam County, TNTN86,61219,342−22%

218Clermont County, OHOH216,97719,276−18%

219Sussex County, DEDE277,14019,204+62%

220Prince William County, VAVA502,96619,163+5%

221Kalamazoo County, MIMI263,79518,931+74%

222Johnson County, ININ174,26218,901+35%

223Polk County, IAIA516,54618,900−0%

224Cumberland County, NCNC338,47318,895+5%

225Williamson County, TNTN272,06118,834+17%

226Stark County, OHOH373,77118,751−35%

227Suffolk County, MAMA791,89118,692+34%

228District of Columbia, DCDC693,64518,582+124%

229Sevier County, TNTN101,34218,571−28%

230Hall County, GAGA226,56818,510−37%

231Lucas County, OHOH423,34718,399+8%

232Etowah County, ALAL103,88618,278+25%

233Davidson County, NCNC180,18218,273−13%

234Brazoria County, TXTX419,08018,193−12%

235San Mateo County, CACA743,56818,004+61%

236Columbia County, GAGA169,18917,998+2%

237Buncombe County, NCNC277,41717,986−43%

238Berkeley County, SCSC274,66617,982+2%

239Washoe County, NVNV509,38617,775−7%

240El Paso County, TXTX877,85817,774−34%

241Harrison County, MSMS217,13617,715+11%

242Douglas County, NENE606,46017,667+9%

243Delaware County, PAPA580,93717,637+45%

244Chester County, PAPA557,11617,623−20%

245Daviess County, KYKY104,89817,600−34%

246Baltimore, MDMD569,99717,582−36%

247Harrison County, TXTX71,95617,428+71%

248Jefferson County, MOMO233,13217,342−3%

249Anoka County, MNMN381,60517,271+60%

250Berks County, PAPA440,07217,251−9%

251Rowan County, NCNC155,09617,215−29%

252Will County, ILIL712,25317,043+22%

253Davis County, UTUT381,22717,036−14%

254Jackson County, FLFL49,62917,008+169%

255Jefferson Parish, LALA431,39817,000−1%

256Colbert County, ALAL59,47416,793+82%

257Stanislaus County, CACA557,71916,781+1%

258Newport News, VAVA183,23016,765+93%

259Hidalgo County, TXTX921,54916,745+130%

260Butte County, CACA209,21116,723+3%

261Muscogee County, GAGA202,17116,679+40%

262Union County, NCNC267,67416,651−42%

263Tipton County, TNTN62,28716,640−0%

264Montgomery County, TNTN249,93516,550−16%

265Lubbock County, TXTX328,90616,497−6%

266Morris County, NJNJ524,25116,460+23%

267Osceola County, FLFL481,71816,451−12%

268Bristol County, MAMA593,64016,442+23%

269Clay County, MOMO265,03216,414−19%

270Pope County, ARAR64,97616,407+112%

271Hudson County, NJNJ735,03316,400+115%

272DeSoto County, MSMS197,91816,369−12%

273Newton County, GAGA125,58316,305+26%

274Talladega County, ALAL81,60316,237−13%

275Accomack County, VAVA33,85916,075+219%

276Adams County, COCO554,66816,056−32%

277Dutchess County, NYNY300,70815,876+119%

278Dauphin County, PAPA293,35115,764+35%

279Niagara County, NYNY208,91215,739+118%

280Pinal County, AZAZ539,38015,649+72%

281Lane County, OROR381,58415,597−15%

282Wilson County, TNTN175,03315,535−21%

283Pike County, KYKY54,72115,527+21%

284Clayton County, GAGA297,47115,508+23%

285Norfolk, VAVA231,01315,504−39%

286St. Francois County, MOMO67,80915,483+88%

287Lafayette Parish, LALA257,94915,483−0%

288Washington County, VAVA53,89815,382+64%

289Jackson County, MSMS147,66615,134−15%

290Harford County, MDMD266,44615,113+1%

291Mahoning County, OHOH224,70615,096+47%

292Frederick County, MDMD302,88315,067+4%

293Santa Rosa County, FLFL211,11515,041−5%

294Calhoun County, ALAL115,83414,939−6%

295Larimer County, COCO377,29214,936+31%

296Washington County, ARAR271,21314,933−13%

297Milwaukee County, WIWI924,21614,916+11%

298Hood County, TXTX70,50114,842+173%

299Kane County, ILIL525,75714,736+23%

300Lamar County, MSMS67,40314,726+144%

301Fresno County, CACA1,035,45614,678−1%

302Iredell County, NCNC211,79814,626−19%

303Chatham County, GAGA311,85514,623+24%

304Hillsborough County, NHNH433,41514,566+3%

305Benton County, ARAR332,55414,538−17%

306Parker County, TXTX184,76714,532+30%

307Cumberland County, MEME317,22214,528+19%

308Van Zandt County, TXTX66,13014,517+129%

309Richmond County, GAGA206,55914,490−8%

310Elkhart County, ININ208,77414,470−3%

311Douglas County, GAGA154,29314,421+24%

312Madison County, NYNY67,12014,357+43%

313Madison County, ILIL263,11014,348−28%

314Placer County, CACA442,08114,328+13%

315Kent County, DEDE194,78614,322+54%

316Jasper County, TXTX33,07514,293+388%

317Okaloosa County, FLFL221,81014,273−49%

318Cumberland County, PAPA277,27014,252−1%

319Madison County, ININ135,08814,209−14%

320Galveston County, TXTX372,20714,185−3%

321Catoosa County, GAGA69,62814,152+8%

322Warren County, OHOH257,18114,136−41%

323Canadian County, OKOK187,18914,100+33%

324Flagler County, FLFL140,36014,099+92%

325Onondaga County, NYNY466,58414,098+1%

326Randolph County, NCNC149,51614,093−29%

327Weld County, COCO378,42614,074+29%

328Ellis County, TXTX240,86714,061+18%

329Calcasieu Parish, LALA208,46614,015−5%

330Tift County, GAGA42,25413,988+69%

331Westmoreland County, PAPA349,32413,943−1%

332Jefferson County, TNTN60,02413,920−21%

333Walker County, GAGA70,25013,909−21%

334Frederick County, VAVA99,95513,879+43%

335Blount County, TNTN143,82013,873−24%

336Leon County, FLFL299,04813,866−10%

337St. Clair County, ALAL98,20613,826−38%

338Madison County, KYKY101,69613,803−14%

339Walker County, ALAL65,14013,778+17%

340Greene County, TNTN73,83113,756+8%

341Putnam County, WVWV56,88513,734+89%

342Camden County, NJNJ535,79913,686+7%

343Durham County, NCNC347,24013,636+5%

344Lynchburg, VAVA81,34713,583+101%

345Henry County, VAVA49,24213,559+19%

346Nash County, NCNC99,36513,548+24%

347Rockingham County, NHNH324,07713,482+21%

348Dane County, WIWI590,37513,471+5%

349Rockingham County, NCNC94,19513,459+0%

350Elmore County, ALAL91,57713,325+20%

351Wise County, VAVA34,82413,305+211%

352Lincoln County, NCNC98,65413,282+18%

353Pickens County, SCSC139,19813,246−30%

354St. Joseph County, ININ272,86113,216+10%

355Columbus County, NCNC50,48713,205+11%

356Henderson County, NCNC122,37513,205+14%

357Limestone County, ALAL122,92813,177+3%

358Douglas County, COCO399,39613,155+2%

359Crawford County, ARAR62,65713,128+95%

360Warren County, KYKY149,37513,078+1%

361Honolulu County, HIHI988,70313,037+85%

362Ashtabula County, OHOH96,71313,020+28%

363Montgomery County, VAVA98,43412,971+29%

364Alachua County, FLFL290,02812,936+11%

365Fairfield County, OHOH169,75212,866+4%

366Licking County, OHOH185,56412,850−27%

367Ramsey County, MNMN541,62312,849+29%

368New Hanover County, NCNC245,95912,776−57%

369Gregg County, TXTX126,09512,559−26%

370Chattooga County, GAGA25,30012,502+17%

371Bossier Parish, LALA131,86712,482−25%

372Weber County, UTUT278,17412,473−66%

373San Joaquin County, CACA823,81512,464−17%

374Greene County, OHOH174,32212,464−51%

375Grayson County, TXTX153,61312,456+15%

376Lauderdale County, ALAL97,13512,424−23%

377York County, MEME222,43412,400+8%

378Sonoma County, CACA486,44412,382−6%

379Cass County, TXTX28,65112,346+124%

380Delaware County, ININ113,10612,329−1%

381Shasta County, CACA181,64812,277−12%

382Hinds County, MSMS211,88812,267+10%

383Canyon County, IDID275,12312,264−64%

384Dickson County, TNTN58,66212,217+52%

385Transylvania County, NCNC34,21112,165+128%

386Effingham County, GAGA74,39712,160+135%

387Franklin County, ALAL32,44912,008+152%

388Grady County, OKOK59,12811,975+80%

389Alamance County, NCNC186,17711,955−23%

390Burlington County, NJNJ481,43911,928−7%

391Russell County, VAVA25,33211,896+336%

392Penobscot County, MEME157,96711,858−17%

393Alexander County, NCNC36,95811,852+110%

394Boyd County, KYKY47,75111,810+49%

395St. Louis, MOMO278,14411,799+7%

396Bedford County, VAVA83,05911,787−10%

397Lenawee County, MIMI97,77911,732+74%

398Ascension Parish, LALA135,10511,722+76%

399Lake County, ININ504,61211,706−36%

400Beaufort County, SCSC204,43311,686+49%

401Bradley County, TNTN115,46511,651−14%

402Marion County, OROR355,77711,637−20%

403Lehigh County, PAPA384,38311,637+1%

404Onslow County, NCNC217,17511,636+13%

405Kitsap County, WAWA283,37411,628+12%

406Jessamine County, KYKY57,14711,616+3%

407Fayette County, GAGA125,15611,600+37%

408Hanover County, VAVA116,42311,576−21%

409Pitt County, NCNC182,93611,562−8%

410Howard County, MDMD339,18311,547−10%

411Brunswick County, NCNC174,70211,512−3%

412Gordon County, GAGA61,70111,493+46%

413Weakley County, TNTN33,26111,485+52%

414Lancaster County, NENE334,04911,485+18%

415Boone County, MOMO191,74611,480+19%

416Webster Parish, LALA34,94811,430+68%

417Fulton County, NYNY52,21611,369+115%

418Bibb County, GAGA157,55611,316−4%

419Ector County, TXTX173,80111,279+63%

420Anchorage, AKAK287,15511,223−1%

421Dakota County, MNMN457,71011,209+9%

422Washington County, UTUT213,67011,186+53%

423Portsmouth, VAVA96,77711,159+17%

424Vanderburgh County, ININ181,99511,110−66%

425Passaic County, NJNJ531,62411,087−40%

426Highlands County, FLFL111,12211,084+1%

427Hardin County, KYKY113,48211,035−28%

428Cape Girardeau County, MOMO83,99911,027+67%

429Saline County, ARAR133,28811,014−17%

430Craighead County, ARAR116,95711,013+15%

431Florence County, SCSC138,50410,969−4%

432Bonneville County, IDID135,77110,922+10%

433Delaware County, OHOH242,03210,915+16%

434Clay County, FLFL239,59310,909−33%

435Pittsylvania County, VAVA59,49010,876−23%

436Sangamon County, ILIL194,17010,857−42%

437St. Clair County, ILIL250,70810,832−12%

438Saratoga County, NYNY241,34310,809−60%

439Somerset County, NJNJ356,48610,777−31%

440Carter County, TNTN57,36110,772−20%

441Benton County, WAWA221,72210,754−18%

442Kenton County, KYKY175,77910,705−44%

443Vermilion County, ILIL71,25910,675−39%

444Haralson County, GAGA33,06610,611−0%

445Comanche County, OKOK122,15810,602−13%

446Clark County, OHOH135,34010,599−45%

447Waukesha County, WIWI417,21010,547+7%

448Ouachita Parish, LALA158,54210,495−43%

449Greenup County, KYKY35,21310,486+85%

450Forrest County, MSMS79,03410,481+50%

451Yavapai County, AZAZ252,55210,455+1%

452Roanoke County, VAVA97,15010,445−24%

453Dorchester County, SCSC178,39710,443−46%

454Pulaski County, VAVA33,58610,438+69%

455Wood County, WVWV82,38510,434−38%

456Rutherford County, NCNC65,74510,416−22%

457Monroe County, MIMI156,00410,413+43%

458Hawkins County, TNTN59,55910,411−49%

459Thurston County, WAWA304,26110,399−9%

460Martin County, FLFL166,27210,398+48%

461Jackson County, NCNC45,03910,398+15%

462Ingham County, MIMI289,70910,382−47%

463Rusk County, TXTX54,85410,379+85%

464Scott County, KYKY62,26210,377+15%

465Santa Barbara County, CACA442,06510,335+1%

466Lincoln County, KYKY25,35310,314−13%

467Luzerne County, PAPA332,12610,289−2%

468Walton County, GAGA112,69610,280−38%

469Adams County, PAPA107,59410,260+3%

470Sumter County, FLFL157,77210,242+77%

471Indian River County, FLFL172,79910,225+13%

472Boulder County, COCO328,56010,211+11%

473Jackson County, ALAL54,28110,178−33%

474Broome County, NYNY195,73610,143+21%

475San Luis Obispo County, CACA282,36710,106+3%

476Boone County, ININ80,68910,096+105%

477Halifax County, NCNC46,53410,094+113%

478Bedford County, TNTN55,27310,026−31%

479Polk County, GAGA45,51410,020+61%

480Richland County, OHOH124,89310,018−0%

481Richmond, VAVA237,25710,015+29%

482Cherokee County, TXTX53,33710,012+267%

483Bullitt County, KYKY86,4549,993−47%

484Wilson County, NCNC81,1509,987−20%

485Livingston County, MIMI197,3159,986−6%

486Buchanan County, VAVA18,4929,960+11%

487Franklin County, KYKY52,6499,950+9%

488Lamar County, TXTX51,5039,947+59%

489Augusta County, VAVA78,9409,904−46%

490Lafourche Parish, LALA95,5059,895−37%

491Washington County, MNMN286,8959,850+22%

492Walker County, TXTX83,8429,850+11%

493Wythe County, VAVA27,9839,844+74%

494Jasper County, MOMO127,4289,843−6%

495Floyd County, KYKY34,4019,792−36%

496Ottawa County, MIMI308,4599,780−3%

497Kaufman County, TXTX209,2359,730+31%

498Habersham County, GAGA50,4169,728+68%

499Hancock County, OHOH75,0349,712+98%

500Solano County, CACA455,3769,676+6%

SHOWING 1–500 OF 3,130

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Download CSV (full list, 3,130 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS

Frequently asked

Which county has the highest american population?

Los Angeles County, California ranks #1 with 324,424 (2020 Decennial Census).

What are the top 5 counties by american population?

Los Angeles County, California, Harris County, Texas, Maricopa County, Arizona, Broward County, Florida, Orange County, California.

How many counties are in this ranking?

3,130 counties qualify after filtering for population minimums and data availability. The ranking covers 2020 Decennial Census data.

How is american population measured?

Number of residents who are American ancestry (Ancestry, ACS detailed tables). Source: US Census Bureau, 2020 Decennial Census.