RANKING · 2020 CENSUS · 500 SHOWN OF 3,135

Most densely populated, US counties · 2020

US counties ranked by residents per square mile (2020). New York County, New York leads at 74,775. 3,135 counties qualify in total. Virginia carries 7 of the top 25 entries. The median across all 3,135 is 44.

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SAME RANKING BYCities States Metros

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

USUnited States331,449,281280–

01New York County, NYNY1,664,86274,775+10%

02Kings County, NYNY2,653,96339,438+11%

03Bronx County, NYNY1,406,33234,917+11%

04Queens County, NYNY2,358,18222,124+8%

05San Francisco County, CACA826,07918,714+13%

06Hudson County, NJNJ735,03315,692+19%

07Suffolk County, MAMA791,89113,698+16%

08Philadelphia County, PAPA1,574,28111,937+6%

09District of Columbia, DCDC693,64511,281+21%

10Alexandria, VAVA160,66210,677+24%

11Arlington County, VAVA243,9319,180+26%

12Richmond County, NYNY501,2908,618+12%

13Baltimore, MDMD569,9977,236−10%

14Falls Church, VAVA15,1597,164+41%

15Essex County, NJNJ896,3796,850+9%

16Manassas Park, VAVA16,5605,675+67%

17Union County, NJNJ601,8635,599+10%

18Cook County, ILIL5,194,6255,583−2%

19Nassau County, NYNY1,398,9394,905+5%

20St. Louis, MOMO278,1444,886−13%

21Denver County, COCO740,6134,674+29%

22Charlottesville, VAVA44,3884,544+3%

23Norfolk, VAVA231,0134,467+2%

24Manassas, VAVA44,3324,345+22%

25Bergen County, NJNJ977,0264,106+8%

26Orange County, CACA3,149,5074,020+12%

27Milwaukee County, WIWI924,2163,8910%

28Fairfax, VAVA26,7723,869+12%

29Richmond, VAVA237,2573,782+15%

30Ramsey County, MNMN541,6233,628+8%

31Pinellas County, FLFL948,5633,503+4%

32Delaware County, PAPA580,9373,138+5%

33Winchester, VAVA28,2723,059+19%

34Dallas County, TXTX2,661,3972,993+18%

35Harrisonburg, VAVA50,8392,989+28%

36Fairfax County, VAVA1,167,8732,942+19%

37Portsmouth, VAVA96,7772,940−3%

38Wayne County, MIMI1,769,0382,931−13%

39Lexington, VAVA7,7692,929+7%

40DeKalb County, GAGA774,3942,856+15%

41DuPage County, ILIL934,2982,846+3%

42Passaic County, NJNJ531,6242,816+7%

43Middlesex County, NJNJ883,3352,791+15%

44Harris County, TXTX5,045,0262,772+39%

45Cuyahoga County, OHOH1,232,9252,766−9%

46Newport News, VAVA183,2302,699+3%

47Fredericksburg, VAVA30,3932,678+45%

48Hampton, VAVA137,3152,665−6%

49Franklin County, OHOH1,361,5362,486+24%

50Marion County, ININ992,1962,468+14%

51Los Angeles County, CACA9,694,9342,466+5%

52Tarrant County, TXTX2,248,4662,439+46%

53Colonial Heights, VAVA18,7382,417+8%

54Camden County, NJNJ535,7992,365+3%

55Roanoke, VAVA99,1112,352+5%

56Westchester County, NYNY1,015,7432,332+9%

57Hennepin County, MNMN1,284,7842,313+15%

58Alameda County, CACA1,636,6302,281+17%

59Orleans Parish, LALA362,1542,265−21%

60Cobb County, GAGA793,3452,255+26%

61Broomfield County, COCO79,1742,248–

62Hopewell, VAVA23,2612,225+3%

63Gwinnett County, GAGA1,018,0992,220+63%

64Montgomery County, MDMD1,074,5822,154+22%

65Mecklenburg County, NCNC1,233,3832,130+60%

66Bristol County, RIRI50,0012,1050%

67Clayton County, GAGA297,4712,099+26%

68Jefferson County, KYKY795,2222,056+13%

69Hamilton County, OHOH838,4182,049−2%

70Fulton County, GAGA1,098,7912,025+31%

71Prince George's County, MDMD970,3742,004+21%

72Middlesex County, MAMA1,669,9791,995+11%

73St. Louis County, MOMO990,9111,977−1%

74Rockland County, NYNY357,3971,948+18%

75Multnomah County, OROR795,3911,892+23%

76Virginia Beach, VAVA453,7371,878+8%

77Macomb County, MIMI886,2211,838+12%

78Norfolk County, MAMA739,7491,833+12%

79Douglas County, NENE606,4601,790+26%

80Montgomery County, PAPA877,6431,774+14%

81Salem, VAVA25,8161,746+2%

82Williamsburg, VAVA15,8611,726+29%

83Mercer County, NJNJ399,2891,726+10%

84Allegheny County, PAPA1,225,0351,713−2%

85San Mateo County, CACA743,5681,704+8%

86Honolulu County, HIHI988,7031,692+16%

87Suffolk County, NYNY1,546,0901,675+8%

88Radford, VAVA17,2431,661+1%

89Essex County, MAMA826,6531,644+12%

90Sacramento County, CACA1,618,4601,642+30%

91Contra Costa County, CACA1,170,0701,626+23%

92Bexar County, TXTX2,160,0881,620+44%

93Broward County, FLFL2,013,3171,616+20%

94Providence County, RIRI678,1791,614+6%

95Lynchburg, VAVA81,3471,613+21%

96Lake County, ILIL719,3391,610+11%

97Orange County, FLFL1,528,0021,584+60%

98Salt Lake County, UTUT1,220,9161,574+32%

99Seminole County, FLFL491,8841,522+29%

100Santa Clara County, CACA1,914,3911,500+15%

101Waynesboro, VAVA23,9511,483+14%

102Petersburg, VAVA33,7341,473−1%

103Oakland County, MIMI1,288,3371,469+7%

104Jefferson Parish, LALA431,3981,465−3%

105Prince William County, VAVA502,9661,438+72%

106Henrico County, VAVA342,7751,431+27%

107Baltimore County, MDMD847,6501,428+13%

108Hillsborough County, FLFL1,574,1151,428+46%

109Miami-Dade County, FLFL2,802,0291,422+20%

110Davidson County, TNTN745,9041,422+26%

111Anne Arundel County, MDMD603,3801,418+20%

112Monmouth County, NJNJ651,0351,375+5%

113Wake County, NCNC1,257,2351,353+80%

114New Castle County, DEDE588,0261,339+14%

115Bristol, VAVA16,4181,338−1%

116Howard County, MDMD339,1831,324+34%

117Summit County, OHOH538,3761,3090%

118Duval County, FLFL1,062,9631,305+28%

119Travis County, TXTX1,389,6701,298+59%

120Staunton, VAVA26,8011,293+8%

121Johnson County, KSKS636,9061,288+35%

122Lucas County, OHOH423,3471,270−5%

123Collin County, TXTX1,297,1791,265+116%

124Martinsville, VAVA13,8491,231−13%

125Shelby County, TNTN910,2261,221+4%

126Jackson County, MOMO732,9941,186+10%

127New Hanover County, NCNC245,9591,174+41%

128Tulsa County, OKOK698,7821,174+19%

129Montgomery County, OHOH539,5981,165−4%

130Monroe County, NYNY750,5061,156+3%

131Somerset County, NJNJ356,4861,144+16%

132Fayette County, KYKY329,7511,136+24%

133Durham County, NCNC347,2401,130+45%

134Oklahoma County, OKOK822,1251,123+21%

135Forsyth County, GAGA282,8051,119+155%

136Davis County, UTUT381,2271,117+52%

137Wyandotte County, KSKS170,5971,116+7%

138Morris County, NJNJ524,2511,105+8%

139Lehigh County, PAPA384,3831,085+20%

140Clarke County, GAGA129,9211,079+27%

141King County, WAWA2,344,9391,073+31%

142Bucks County, PAPA647,8281,070+8%

143Kenton County, KYKY175,7791,054+12%

144Covington, VAVA5,6801,049−9%

145Bristol County, MAMA593,6401,047+8%

146Denton County, TXTX1,069,3461,032+109%

147Buena Vista, VAVA6,6721,032+5%

148Ocean County, NJNJ673,7461,014+25%

149Lake County, OHOH232,2171,014+2%

150Kent County, RIRI173,4951,011+2%

151East Baton Rouge Parish, LALA456,1801,003+11%

152Lake County, ININ504,6121,000+3%

153Danville, VAVA41,647995−12%

154Kane County, ILIL525,757995+28%

155Franklin, VAVA8,478988−2%

156Lee County, FLFL875,607974+73%

157Muscogee County, GAGA202,171956+11%

158Fort Bend County, TXTX975,191955+132%

159Knox County, TNTN511,453942+25%

160Gloucester County, NJNJ312,638939+19%

161Forsyth County, NCNC401,718938+25%

162Galveston County, TXTX372,207924+40%

163Erie County, NYNY946,7419150%

164Lafayette Parish, LALA257,949899+27%

165Hamilton County, ININ387,036881+90%

166Anoka County, MNMN381,605862+22%

167Chesterfield County, VAVA397,148861+40%

168Polk County, IAIA516,546860+31%

169El Paso County, TXTX877,858854+27%

170Rockwall County, TXTX140,738848+150%

171Northampton County, PAPA324,411846+17%

172Guilford County, NCNC562,234838+29%

173Butler County, OHOH400,128837+17%

174Newport County, RIRI83,0518360%

175Emporia, VAVA5,447835+2%

176Will County, ILIL712,253833+39%

177Washington County, OROR611,708829+35%

178Arapahoe County, COCO673,820821+34%

179Loudoun County, VAVA449,749816+148%

180Galax, VAVA6,670816−2%

181Poquoson, VAVA13,292811+8%

182Plymouth County, MAMA546,829806+12%

183Sarpy County, NENE208,303801+55%

184Clark County, WAWA532,119801+46%

185San Diego County, CACA3,282,248783+17%

186Dakota County, MNMN457,710782+24%

187Sarasota County, FLFL479,958781+33%

188Kent County, MIMI675,232775+15%

189Schenectady County, NYNY162,581772+8%

190Vanderburgh County, ININ181,995772+5%

191Jefferson County, COCO580,451763+11%

192Palm Beach County, FLFL1,575,726760+32%

193Henry County, GAGA264,922755+102%

194Hampden County, MAMA464,338755+2%

195Pasco County, FLFL674,516753+63%

196Waukesha County, WIWI417,210740+13%

197Chesapeake, VAVA255,332737+25%

198St. Charles County, MOMO426,499723+43%

199Rockdale County, GAGA98,416721+33%

200Douglas County, GAGA154,293720+56%

201Chester County, PAPA557,116712+23%

202Kitsap County, WAWA283,374698+19%

203Washington County, MNMN286,895695+33%

204Chatham County, GAGA311,855682+27%

205Hamilton County, TNTN390,833675+19%

206York County, VAVA71,374669+24%

207Greenville County, SCSC583,125669+38%

208Stark County, OHOH373,771652−1%

209Gaston County, NCNC246,558641+20%

210Lorain County, OHOH323,219638+10%

211Genesee County, MIMI401,093638−7%

212Clay County, MOMO265,032637+38%

213Richmond County, GAGA206,559637+3%

214Cherokee County, GAGA299,273633+88%

215Bibb County, GAGA157,556631+2%

216Cabarrus County, NCNC249,725625+72%

217Kenosha County, WIWI168,448622+13%

218Campbell County, KYKY95,441615+5%

219Fayette County, GAGA125,156613+31%

220Onondaga County, NYNY466,584612+4%

221Santa Cruz County, CACA258,852609+6%

222Jefferson County, ALAL665,742607+2%

223Warren County, OHOH257,181604+53%

224Albany County, NYNY321,225602+7%

225Brevard County, FLFL663,982598+27%

226Harford County, MDMD266,446597+19%

227St. Joseph County, ININ272,861596+3%

228Montgomery County, TXTX781,194595+111%

229Racine County, WIWI198,919594+5%

230Allen County, ININ402,329586+16%

231Lancaster County, PAPA563,159586+17%

232Stafford County, VAVA170,803583+70%

233Bernalillo County, NMNM667,601583+22%

234Barnstable County, MAMA233,539581+3%

235Burlington County, NJNJ481,439578+9%

236St. Lucie County, FLFL402,449576+71%

237Worcester County, MAMA888,502571+15%

238San Joaquin County, CACA823,815560+38%

239Winnebago County, ILIL283,674556+2%

240Mahoning County, OHOH224,706556−11%

241Hidalgo County, TXTX921,549554+53%

242Pierce County, WAWA946,288552+31%

243Boone County, KYKY145,316552+58%

244Solano County, CACA455,376552+15%

245Rutherford County, TNTN386,352551+88%

246James City County, VAVA83,326550+63%

247Richland County, SCSC434,956550+30%

248Cleveland County, OKOK303,973548+42%

249Williamson County, TXTX752,827546+144%

250Dauphin County, PAPA293,351546+14%

251Floyd County, ININ82,153542+14%

252Paulding County, GAGA190,996540+106%

253Manatee County, FLFL468,200538+51%

254Columbia County, GAGA169,189538+75%

255Washtenaw County, MIMI370,214527+15%

256Pulaski County, ARAR404,611526+10%

257Ottawa County, MIMI308,459526+24%

258Sedgwick County, KSKS538,433525+16%

259Barrow County, GAGA99,773519+81%

260Hall County, GAGA226,568517+46%

261McHenry County, ILIL317,751514+19%

262Cumberland County, NCNC338,473513+10%

263Ingham County, MIMI289,709512+2%

264Brown County, WIWI275,803507+19%

265Johnson County, ININ174,262505+40%

266York County, PAPA473,197505+20%

267Marin County, CACA253,694504+6%

268Volusia County, FLFL606,573503+25%

269Berks County, PAPA440,072501+15%

270Orange County, NYNY417,669494+18%

271Atlantic County, NJNJ278,657494+9%

272Norton, VAVA3,477493−6%

273Escambia County, FLFL333,834490+9%

274Madison County, ALAL433,516484+40%

275Delaware County, OHOH242,032483+95%

276Hillsborough County, NHNH433,415483+11%

277Maricopa County, AZAZ4,689,558480+44%

278Cumberland County, PAPA277,270476+21%

279Cameron County, TXTX433,946472+26%

280Ada County, IDID546,141470+64%

281Lackawanna County, PAPA216,502470+1%

282Dane County, WIWI590,375469+32%

283Kalamazoo County, MIMI263,795466+10%

284Clermont County, OHOH216,977461+17%

285Ventura County, CACA830,851458+12%

286Boulder County, COCO328,560455+14%

287St. Johns County, FLFL346,328455+122%

288Gregg County, TXTX126,095454+12%

289Rockingham County, NHNH324,077452+13%

290Elkhart County, ININ208,774447+13%

291Adams County, COCO554,668445+43%

292Charleston County, SCSC436,200445+32%

293Greene County, MOMO309,286443+24%

294Leon County, FLFL299,048437+22%

295Ascension Parish, LALA135,105436+65%

296Calvert County, MDMD94,484435+24%

297Houston County, GAGA178,214435+48%

298Medina County, OHOH185,025433+21%

299Hendricks County, ININ193,510430+68%

300Weber County, UTUT278,174429+33%

301Douglas County, COCO399,396426+104%

302Williamson County, TNTN272,061425+96%

303Putnam County, NYNY99,028424+2%

304Scott County, MNMN159,017424+69%

305Nueces County, TXTX352,992421+13%

306Lexington County, SCSC317,588421+36%

307Catoosa County, GAGA69,628419+27%

308Island County, WAWA85,657417+21%

309Porter County, ININ176,049414+18%

310York County, SCSC306,887414+71%

311Kendall County, ILIL145,470412+142%

312Frederick County, MDMD302,883411+39%

313Hernando County, FLFL221,701411+49%

314Newton County, GAGA125,583411+81%

315Buncombe County, NCNC277,417410+31%

316Montgomery County, TNTN249,935408+63%

317Thurston County, WAWA304,261408+42%

318Washington County, TNTN141,199407+24%

319Niagara County, NYNY208,912407−3%

320Greene County, OHOH174,322406+14%

321Spartanburg County, SCSC380,857406+29%

322Carson City, NVNV58,571406+12%

323Alamance County, NCNC186,177405+31%

324Lake County, FLFL456,068403+82%

325Polk County, FLFL874,790403+50%

326Ohio County, WVWV40,496401−11%

327Catawba County, NCNC170,172400+13%

328Hamblen County, TNTN68,843400+11%

329Brazos County, TXTX249,088399+53%

330Snohomish County, WAWA870,656397+37%

331Lebanon County, PAPA146,380396+19%

332Winnebago County, WIWI174,218395+10%

333Washington County, RIRI129,795394+5%

334Canyon County, IDID275,123394+76%

335Ozaukee County, WIWI94,346393+11%

336St. Clair County, ILIL250,708391+1%

337DeSoto County, MSMS197,918389+73%

338Beaver County, PAPA166,032387−7%

339Roanoke County, VAVA97,150387+13%

340Carroll County, MDMD176,677386+15%

341Lancaster County, NENE334,049385+29%

342Sullivan County, TNTN163,759382+3%

343Scott County, IAIA175,259381+10%

344Berkeley County, WVWV139,522380+61%

345Cape May County, NJNJ93,390379−7%

346Union County, NCNC267,674377+93%

347Orange County, NCNC152,498374+26%

348Tippecanoe County, ININ190,456373+25%

349Dutchess County, NYNY300,708372+6%

350Madison County, ILIL263,110372+3%

351Sumner County, TNTN215,538371+50%

352Stanislaus County, CACA557,719370+24%

353Luzerne County, PAPA332,126366+2%

354Charles County, MDMD176,593364+38%

355Harrison County, MSMS217,136364+10%

356Cumberland County, MEME317,222362+14%

357Clay County, FLFL239,593361+55%

358Oldham County, KYKY70,986361+46%

359Strafford County, NHNH135,043356+17%

360Hays County, TXTX304,390356+147%

361Whitfield County, GAGA106,212354+23%

362Monroe County, ININ143,345354+16%

363Hancock County, WVWV27,729352−11%

364Bell County, TXTX402,248352+56%

365Muskegon County, MIMI177,901349+3%

366Spotsylvania County, VAVA155,388348+55%

367Lubbock County, TXTX328,906347+28%

368Jefferson County, MOMO233,132346+14%

369Westmoreland County, PAPA349,324345−4%

370Clark County, OHOH135,340344−6%

371El Paso County, COCO757,040343+41%

372Spalding County, GAGA70,775343+15%

373Livingston County, MIMI197,315343+24%

374Erie County, PAPA265,832339−4%

375Rock Island County, ILIL141,869338−3%

376Washington County, MDMD157,731338+17%

377Mobile County, ALAL411,658337+4%

378Cabell County, WVWV91,183336−3%

379Riverside County, CACA2,544,916335+56%

380Benton County, ARAR332,554335+85%

381Portage County, OHOH163,404332+6%

382Coweta County, GAGA160,240331+64%

383Bradley County, TNTN115,465330+23%

384Utah County, UTUT759,859329+79%

385Shawnee County, KSKS178,607329+5%

386Trumbull County, OHOH198,972327−10%

387Clark County, ININ130,451325+26%

388Iredell County, NCNC211,798325+52%

389Beaufort County, SCSC204,433325+55%

390Linn County, IAIA232,028321+20%

391Cumberland County, NJNJ157,148319+5%

392Alachua County, FLFL290,028318+28%

393Indian River County, FLFL172,799318+41%

394Washington County, WIWI139,238318+16%

395St. Mary's County, MDMD116,692317+32%

396Fairfield County, OHOH169,752315+29%

397Chittenden County, VTVT169,115314+15%

398St. Tammany Parish, LALA279,108313+38%

399Henderson County, NCNC122,375312+30%

400Sonoma County, CACA486,444310+7%

401Kent County, DEDE194,786310+44%

402Horry County, SCSC427,551310+79%

403Nantucket County, MAMA14,758309+50%

404Jessamine County, KYKY57,147308+36%

405Hampshire County, MAMA164,065308+7%

406Warren County, NJNJ112,953307+7%

407Spokane County, WAWA558,344306+29%

408Davidson County, NCNC180,182305+15%

409Carver County, MNMN114,379302+52%

410Boyd County, KYKY47,751302−3%

411Hunterdon County, NJNJ131,781301+6%

412Erie County, OHOH73,296301−5%

413Cecil County, MDMD107,131300+21%

414Outagamie County, WIWI195,894299+18%

415Walton County, GAGA112,696296+59%

416Peoria County, ILIL178,553294−1%

417Monongalia County, WVWV107,991294+29%

418Lincoln County, NCNC98,654293+36%

419Marion County, OROR355,777293+21%

420Osceola County, FLFL481,718293+125%

421Jefferson County, TXTX254,321293+2%

422Montgomery County, ALAL225,891292+2%

423Martin County, FLFL166,272291+25%

424Saratoga County, NYNY241,343291+17%

425Comal County, TXTX209,166289+107%

426Madison County, ININ135,088288−2%

427Placer County, CACA442,081288+63%

428Rowan County, NCNC155,096287+13%

429Clark County, NVNV2,407,226287+65%

430Lee County, ALAL189,881287+51%

431Howard County, ININ83,904285−2%

432Delaware County, ININ113,106285−6%

433Anderson County, SCSC219,930285+23%

434Dorchester County, SCSC178,397284+68%

435Shelby County, ALAL238,552284+56%

436Monroe County, MIMI156,004282+6%

437Broome County, NYNY195,736282−1%

438Sussex County, NJNJ148,0632780%

439Bullitt County, KYKY86,454277+34%

440Monroe County, PAPA167,179277+21%

441Wicomico County, MDMD106,899277+22%

442Jefferson County, WVWV63,102276+37%

443Charlotte County, FLFL217,212274+32%

444Brazoria County, TXTX419,080273+54%

445McCracken County, KYKY67,553273+4%

446Johnston County, NCNC256,448273+77%

447Berrien County, MIMI152,444272−5%

448Caddo Parish, LALA224,226270−6%

449Onslow County, NCNC217,175268+36%

450Boone County, MOMO191,746268+36%

451Miami County, OHOH112,634268+10%

452La Crosse County, WIWI121,339267+13%

453Pickens County, SCSC139,198264+19%

454Citrus County, FLFL171,666264+30%

455Vigo County, ININ106,5122630%

456Ouachita Parish, LALA158,542263+9%

457Hinds County, MSMS211,888262−9%

458Licking County, OHOH185,564262+23%

459Washington County, ARAR271,213261+56%

460Dougherty County, GAGA82,616261−11%

461Pitt County, NCNC182,936261+27%

462Hancock County, ININ90,969261+44%

463Douglas County, KSKS120,920261+19%

464Wilson County, TNTN175,033259+66%

465Montgomery County, VAVA98,434258+19%

466Platte County, MOMO114,400254+45%

467Orange County, TXTX86,2662540%

468Allen County, OHOH100,881254−6%

469Sussex County, DEDE277,140254+52%

470Smith County, TXTX252,549253+34%

471Brooke County, WVWV21,142253−11%

472Richland County, OHOH124,893252−3%

473McLennan County, TXTX272,020251+22%

474Johnson County, IAIA160,044249+38%

475Olmsted County, MNMN166,731249+31%

476Warren County, KYKY149,375248+45%

477Johnson County, TXTX218,048248+42%

478Lee County, NCNC70,258248+29%

479Franklin County, KYKY52,649248+8%

480Rensselaer County, NYNY160,510247+6%

481Butler County, PAPA200,169245+11%

482Minnehaha County, SDSD212,691244+33%

483Washington County, PAPA210,802244+3%

484Guadalupe County, TXTX201,111243+94%

485Blount County, TNTN143,820242+28%

486Lawrence County, PAPA83,911241−9%

487Sebastian County, ARAR130,641241+11%

488Loudon County, TNTN63,764239+40%

489Carroll County, GAGA131,036239+37%

490Geauga County, OHOH95,676238+5%

491Lowndes County, GAGA122,867238+28%

492Androscoggin County, MEME116,487237+7%

493Saginaw County, MIMI187,688237−9%

494Flagler County, FLFL140,360237+132%

495Bartow County, GAGA120,800237+43%

496Marion County, FLFL442,660237+45%

497Suffolk, VAVA104,699236+48%

498Hanover County, VAVA116,423235+27%

499Bay County, MIMI102,123235−6%

500Blair County, PAPA119,541234−5%

SHOWING 1–500 OF 3,135

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Download CSV (full list, 3,135 rows)

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS

Frequently asked

Which county has the highest population density?

New York County, New York ranks #1 with 74,775 (2020 Decennial Census).

What are the top 5 counties by population density?

New York County, New York, Kings County, New York, Bronx County, New York, Queens County, New York, San Francisco County, California.

How many counties are in this ranking?

3,135 counties qualify after filtering for population minimums and data availability. The ranking covers 2020 Decennial Census data.

How is population density measured?

Residents per square mile of land area. Source: US Census Bureau, 2020 Decennial Census.