RANKING · 2025 ESTIMATES · 500 SHOWN OF 3,144

Most densely populated, US counties

US counties ranked by residents per square mile (2025). New York County, New York leads at 73,478. 3,144 counties qualify in total. Virginia carries 8 of the top 25 entries. The median across all 3,144 is 45. Biggest climber in the top 100 since 2020: Orange County, FL, up 9 places to #88.

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All statesAll rankings

SAME RANKING BYCities States Metros

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01New York County, NYNY1,664,86273,478+8%

02Kings County, NYNY2,653,96338,254+8%

03Bronx County, NYNY1,406,33233,344+6%

04Queens County, NYNY2,358,18221,690+6%

05San Francisco County, CACA826,07917,689+6%

06Hudson County, NJNJ735,03315,912+21%

07Suffolk County, MAMA791,89113,594+15%

08Philadelphia County, PAPA1,574,28111,717+4%

09District of Columbia, DCDC693,64511,348+21%

10Alexandria, VAVA160,66210,757+25%

11Arlington County, VAVA243,9319,383+29%

12Richmond County, NYNY501,2908,715+13%

13▲1Falls Church, VAVA15,1597,409+46%

14▲1Essex County, NJNJ896,3797,109+13%

15▼2Baltimore, MDMD569,9977,042−12%

16▲1Union County, NJNJ601,8635,857+15%

17▲1Cook County, ILIL5,194,6255,497−3%

18▼2Manassas Park, VAVA16,5605,458+61%

19Nassau County, NYNY1,398,9394,916+5%

20▲1Denver County, COCO740,6134,838+34%

21▼1St. Louis, MOMO278,1444,507−20%

22▲2Manassas, VAVA44,3324,504+26%

23Norfolk, VAVA231,0134,336−1%

24▼2Charlottesville, VAVA44,3884,333−1%

25▲3Fairfax, VAVA26,7724,290+25%

26▼1Bergen County, NJNJ977,0264,197+11%

27▼1Orange County, CACA3,149,5073,972+11%

28▲1Richmond, VAVA237,2573,959+20%

29▼2Milwaukee County, WIWI924,2163,828−2%

30Ramsey County, MNMN541,6233,557+6%

31Pinellas County, FLFL948,5633,465+3%

32Delaware County, PAPA580,9373,161+5%

33▲6Lexington, VAVA7,7693,109+13%

34▼1Winchester, VAVA28,2723,075+20%

35▼1Dallas County, TXTX2,661,3973,048+20%

36Fairfax County, VAVA1,167,8732,987+20%

37▲7Harris County, TXTX5,045,0262,955+48%

38▼3Harrisonburg, VAVA50,8392,933+26%

39▲8Fredericksburg, VAVA30,3932,908+58%

40▼3Portsmouth, VAVA96,7772,906−4%

41▼1DeKalb County, GAGA774,3942,893+16%

42▼4Wayne County, MIMI1,769,0382,891−14%

43Middlesex County, NJNJ883,3352,856+18%

44▼2Passaic County, NJNJ531,6242,856+9%

45▼4DuPage County, ILIL934,2982,850+3%

46▼1Cuyahoga County, OHOH1,232,9252,697−12%

47▲1Hampton, VAVA137,3152,668−6%

48▼2Newport News, VAVA183,2302,656+2%

49▲3Tarrant County, TXTX2,248,4662,599+55%

50▼1Franklin County, OHOH1,361,5362,557+27%

51▼1Marion County, ININ992,1962,506+15%

52▲1Colonial Heights, VAVA18,7382,492+11%

53▲1Camden County, NJNJ535,7992,420+5%

54Greater Bridgeport Planning Region, CTCT337,6972,409–

55▲6Broomfield County, COCO79,1742,402–

56▼5Los Angeles County, CACA9,694,9342,388+2%

57▲6Gwinnett County, GAGA1,018,0992,361+73%

58▼2Westchester County, NYNY1,015,7432,358+10%

59▲6Mecklenburg County, NCNC1,233,3832,356+77%

60Cobb County, GAGA793,3452,335+31%

61▼6Roanoke, VAVA99,1112,331+4%

62▼5Hennepin County, MNMN1,284,7842,319+15%

63▼1Hopewell, VAVA23,2612,247+4%

64▼6Alameda County, CACA1,636,6302,219+13%

65▼1Montgomery County, MDMD1,074,5822,179+23%

66▼7Orleans Parish, LALA362,1542,137−25%

67Clayton County, GAGA297,4712,098+26%

68Jefferson County, KYKY795,2222,088+15%

69▲1Fulton County, GAGA1,098,7912,086+35%

70▼4Bristol County, RIRI50,0012,072−1%

71▼2Hamilton County, OHOH838,4182,068−1%

72▲2Rockland County, NYNY357,3972,058+25%

73▼1Middlesex County, MAMA1,669,9792,042+14%

74▼3Prince George's County, MDMD970,3742,011+21%

75▼2St. Louis County, MOMO990,9111,951−2%

76▲2Norfolk County, MAMA739,7491,868+14%

77▲2Douglas County, NENE606,4601,858+31%

78▼2Virginia Beach, VAVA453,7371,854+7%

79▼2Macomb County, MIMI886,2211,849+12%

80▼5Multnomah County, OROR795,3911,845+20%

81▼1Montgomery County, PAPA877,6431,817+17%

82▲6Radford, VAVA17,2431,782+9%

83Mercer County, NJNJ399,2891,779+14%

84▼3Salem, VAVA25,8161,779+4%

85▼3Williamsburg, VAVA15,8611,775+32%

86▲6Bexar County, TXTX2,160,0881,742+55%

87Suffolk County, NYNY1,546,0901,697+9%

88▲9Orange County, FLFL1,528,0021,692+70%

89Essex County, MAMA826,6531,678+14%

90▼6Allegheny County, PAPA1,225,0351,678−4%

91▼1Sacramento County, CACA1,618,4601,677+32%

92▲1Broward County, FLFL2,013,3171,674+24%

93▲2Lynchburg, VAVA81,3471,661+25%

94▼9San Mateo County, CACA743,5681,658+5%

95▼1Providence County, RIRI678,1791,656+9%

96▼10Honolulu County, HIHI988,7031,646+13%

97▼6Contra Costa County, CACA1,170,0701,632+23%

98Salt Lake County, UTUT1,220,9161,622+36%

99▼3Lake County, ILIL719,3391,622+12%

100▲1Waynesboro, VAVA23,9511,600+23%

101▼2Seminole County, FLFL491,8841,590+35%

102South Central Connecticut Planning Region, CTCT578,7411,576–

103▲20Collin County, TXTX1,297,1791,542+164%

104▲4Hillsborough County, FLFL1,574,1151,539+58%

105▲8Wake County, NCNC1,257,2351,506+100%

106▼1Prince William County, VAVA502,9661,500+79%

107▼4Oakland County, MIMI1,288,3371,485+8%

108▼6Petersburg, VAVA33,7341,4850%

109▼9Santa Clara County, CACA1,914,3911,483+14%

110Davidson County, TNTN745,9041,482+31%

111▼2Miami-Dade County, FLFL2,802,0291,475+24%

112▼6Henrico County, VAVA342,7751,467+31%

113▼2Anne Arundel County, MDMD603,3801,455+23%

114▼10Jefferson Parish, LALA431,3981,434−5%

115▼8Baltimore County, MDMD847,6501,417+12%

116▲3Travis County, TXTX1,389,6701,398+71%

117▲1Duval County, FLFL1,062,9631,394+36%

118▼6Monmouth County, NJNJ651,0351,390+6%

119▼5New Castle County, DEDE588,0261,379+18%

120▼4Howard County, MDMD339,1831,352+37%

121▼1Staunton, VAVA26,8011,345+12%

122▼1Johnson County, KSKS636,9061,345+41%

123▼6Summit County, OHOH538,3761,304−1%

124▲3New Hanover County, NCNC245,9591,279+53%

125▼10Bristol, VAVA16,4181,276−5%

126▼2Martinsville, VAVA13,8491,264−10%

127▲8Forsyth County, GAGA282,8051,259+187%

128▼6Lucas County, OHOH423,3471,246−7%

129▼1Tulsa County, OKOK698,7821,225+24%

130▲16Denton County, TXTX1,069,3461,217+147%

131▼5Jackson County, MOMO732,9941,213+12%

132▲1Durham County, NCNC347,2401,208+55%

133Western Connecticut Planning Region, CTCT640,4821,204–

134▼9Shelby County, TNTN910,2261,196+1%

135▼4Somerset County, NJNJ356,4861,181+20%

136Davis County, UTUT381,2271,174+60%

137▼8Montgomery County, OHOH539,5981,170−3%

138▼6Fayette County, KYKY329,7511,162+27%

139▼5Oklahoma County, OKOK822,1251,160+24%

140▼10Monroe County, NYNY750,5061,142+2%

141▼3Morris County, NJNJ524,2511,137+11%

142▲16Fort Bend County, TXTX975,1911,132+175%

143▼6Wyandotte County, KSKS170,5971,125+8%

144Naugatuck Valley Planning Region, CTCT463,3491,122–

145▲11Lee County, FLFL875,6071,121+99%

146▼7Lehigh County, PAPA384,3831,113+23%

147▼6King County, WAWA2,344,9391,108+35%

148▲22Rockwall County, TXTX140,7381,106+227%

149▼6Kenton County, KYKY175,7791,096+16%

150▼10Clarke County, GAGA129,9211,089+28%

151▼6Bristol County, MAMA593,6401,073+11%

152▼4Ocean County, NJNJ673,7461,072+32%

153▼11Bucks County, PAPA647,8281,072+8%

154▼10Covington, VAVA5,6801,039−10%

155▼8Buena Vista, VAVA6,6721,036+5%

156▼6Kent County, RIRI173,4951,029+4%

157▼2Franklin, VAVA8,4781,024+2%

158▼4Kane County, ILIL525,7571,012+30%

159▼10Lake County, OHOH232,2171,012+2%

160▼8Lake County, ININ504,6121,011+4%

161▼2Knox County, TNTN511,4531,006+34%

162▼11East Baton Rouge Parish, LALA456,1801,001+10%

163▼2Forsyth County, NCNC401,718985+31%

164▲1Hamilton County, ININ387,036981+112%

165▼3Galveston County, TXTX372,207981+49%

166▼13Danville, VAVA41,647973−14%

167▼7Gloucester County, NJNJ312,638971+23%

168Capitol Planning Region, CTCT994,115968–

169▼5Lafayette Parish, LALA257,949960+35%

170▼3Chesterfield County, VAVA397,148938+53%

171▼14Muscogee County, GAGA202,171934+9%

172▼9Erie County, NYNY946,7419080%

173▼7Anoka County, MNMN381,605904+28%

174▲21Pasco County, FLFL674,516903+96%

175▼7Polk County, IAIA516,546902+38%

176▼5Northampton County, PAPA324,411877+21%

177▲6Sarpy County, NENE208,303875+70%

178▲1Loudoun County, VAVA449,749872+165%

179▼7Guilford County, NCNC562,234870+34%

180▼11El Paso County, TXTX877,858866+29%

181Poquoson, VAVA13,292866+15%

182▲5Sarasota County, FLFL479,958863+47%

183▼10Butler County, OHOH400,128858+20%

184▼8Will County, ILIL712,253852+42%

185▼1Clark County, WAWA532,119847+54%

186▼9Washington County, OROR611,708845+37%

187▼9Arapahoe County, COCO673,820845+38%

188▲5Henry County, GAGA264,922831+122%

189▼7Plymouth County, MAMA546,829830+16%

190▼4Dakota County, MNMN457,710814+29%

191▼17Newport County, RIRI83,051811−3%

192▼12Galax, VAVA6,670810−2%

193▼1Palm Beach County, FLFL1,575,726802+39%

194▼6Kent County, MIMI675,232795+18%

195▼6Schenectady County, NYNY162,581794+11%

196▼21Emporia, VAVA5,447789−4%

197▼7Vanderburgh County, ININ181,995780+6%

198▼13San Diego County, CACA3,282,248780+17%

199▲1Douglas County, GAGA154,293771+67%

200▼2St. Charles County, MOMO426,499761+50%

201▼10Jefferson County, COCO580,451759+10%

202▼6Waukesha County, WIWI417,210759+16%

203▼4Rockdale County, GAGA98,416758+40%

204▼7Chesapeake, VAVA255,332754+28%

205▼11Hampden County, MAMA464,338753+2%

206▲22Montgomery County, TXTX781,194750+166%

207▼4Washington County, MNMN286,895746+43%

208▼7Chester County, PAPA557,116742+29%

209▼2Greenville County, SCSC583,125742+54%

210▼5Hamilton County, TNTN390,833721+27%

211▼7Chatham County, GAGA311,855721+34%

212▼10Kitsap County, WAWA283,374717+22%

213▲1Cherokee County, GAGA299,273711+111%

214▲22St. Lucie County, FLFL402,449704+109%

215▼6Gaston County, NCNC246,558693+30%

216Cabarrus County, NCNC249,725691+91%

217▼11York County, VAVA71,374682+27%

218▲31Williamson County, TXTX752,827675+201%

219▼7Clay County, MOMO265,032666+44%

220▼10Lorain County, OHOH323,219659+14%

221▲4Brevard County, FLFL663,982654+39%

222▼14Stark County, OHOH373,771650−1%

223▼4Fayette County, GAGA125,156643+37%

224▼1Warren County, OHOH257,181641+62%

225▼12Richmond County, GAGA206,559637+3%

226▲6Stafford County, VAVA170,803634+85%

227▼12Bibb County, GAGA157,556632+2%

228▼10Campbell County, KYKY95,441631+8%

229▲24Manatee County, FLFL468,200630+77%

230▼19Genesee County, MIMI401,093630−8%

231▲14Rutherford County, TNTN386,352624+112%

232▼15Kenosha County, WIWI168,448620+13%

233▲26Barrow County, GAGA99,773620+116%

234▼10Albany County, NYNY321,225614+9%

235▼5Allen County, ININ402,329612+21%

236▲16Paulding County, GAGA190,996611+134%

237▼11Harford County, MDMD266,446610+22%

238▼3Burlington County, NJNJ481,439602+14%

239▼19Onondaga County, NYNY466,584599+2%

240▼18Jefferson County, ALAL665,742599+1%

241▼12Racine County, WIWI198,919598+5%

242▼11Lancaster County, PAPA563,159597+20%

243▼16St. Joseph County, ININ272,861596+3%

244▼10Barnstable County, MAMA233,539592+5%

245▼7San Joaquin County, CACA823,815592+46%

246▼3Boone County, KYKY145,316590+69%

247▼10Worcester County, MAMA888,502588+18%

248▼7Hidalgo County, TXTX921,549587+62%

249▼3James City County, VAVA83,326586+73%

250▲4Columbia County, GAGA169,189583+89%

251▼30Santa Cruz County, CACA258,852582+1%

252▲8Hall County, GAGA226,568577+63%

253▲34St. Johns County, FLFL346,328577+181%

254▼21Bernalillo County, NMNM667,601575+20%

255▼8Richland County, SCSC434,956574+36%

256▼14Pierce County, WAWA946,288567+35%

257▼9Cleveland County, OKOK303,973564+46%

258▼8Dauphin County, PAPA293,351559+17%

259▼15Solano County, CACA455,376554+15%

260▼9Floyd County, ININ82,153553+16%

261▼22Winnebago County, ILIL283,674553+2%

262▲6Volusia County, FLFL606,573551+37%

263▼6Ottawa County, MIMI308,459547+29%

264▲11Delaware County, OHOH242,032546+120%

265▼25Mahoning County, OHOH224,706546−13%

266▼1Johnson County, ININ174,262544+51%

267▲7Madison County, ALAL433,516541+57%

268▼10Sedgwick County, KSKS538,433540+19%

269▼13Pulaski County, ARAR404,611534+12%

270▼9McHenry County, ILIL317,751527+22%

271▼16Washtenaw County, MIMI370,214524+15%

272▼6York County, PAPA473,197523+24%

273▼10Ingham County, MIMI289,709521+4%

274▼10Brown County, WIWI275,803520+22%

275▲5Ada County, IDID546,141519+82%

276▼14Cumberland County, NCNC338,473519+12%

277▼7Orange County, NYNY417,669514+22%

278▼9Berks County, PAPA440,072514+18%

279▼2Maricopa County, AZAZ4,689,558510+53%

280▼2Cumberland County, PAPA277,270508+30%

281▼8Escambia County, FLFL333,834508+13%

282▼11Atlantic County, NJNJ278,657502+10%

283▼7Hillsborough County, NHNH433,415494+14%

284▼2Dane County, WIWI590,375493+38%

285▼18Marin County, CACA253,694488+3%

286▼7Cameron County, TXTX433,946487+29%

287▲38Polk County, FLFL874,790487+81%

288▼4Clermont County, OHOH216,977479+22%

289▲35Lake County, FLFL456,068479+117%

290▲9Hendricks County, ININ193,510476+86%

291Adams County, COCO554,668475+52%

292Charleston County, SCSC436,200475+41%

293▲8Douglas County, COCO399,396475+127%

294Southeastern Connecticut Planning Region, CTCT284,015475–

295▲2Houston County, GAGA178,214474+61%

296▼15Lackawanna County, PAPA216,502472+2%

297▲24Spartanburg County, SCSC380,857471+50%

298▼15Kalamazoo County, MIMI263,795469+11%

299▲14Hernando County, FLFL221,701469+69%

300▲34Canyon County, IDID275,123469+109%

301▲1Williamson County, TNTN272,061467+115%

302▼13Rockingham County, NHNH324,077466+17%

303▼8Ascension Parish, LALA135,105466+76%

304▼32Norton, VAVA3,477465−11%

305▲11Montgomery County, TNTN249,935464+85%

306▼18Gregg County, TXTX126,095461+13%

307▲7Newton County, GAGA125,583459+103%

308▲4Frederick County, MDMD302,883458+55%

309▼16Greene County, MOMO309,286458+29%

310▼10Weber County, UTUT278,174455+42%

311▼5Lexington County, SCSC317,588454+47%

312▼1Kendall County, ILIL145,470454+167%

313▼27Boulder County, COCO328,560452+13%

314▼29Ventura County, CACA830,851451+10%

315▼25Elkhart County, ININ208,774451+14%

316▼6York County, SCSC306,887451+86%

317▲43Hays County, TXTX304,390450+212%

318▼24Leon County, FLFL299,048447+25%

319▼15Scott County, MNMN159,017447+78%

320▼24Calvert County, MDMD94,484443+27%

321▲2Alamance County, NCNC186,177440+42%

322▼24Medina County, OHOH185,025439+22%

323▲21Berkeley County, WVWV139,522434+84%

324▼6Washington County, TNTN141,199432+32%

325▼22Putnam County, NYNY99,028430+3%

326▼19Catoosa County, GAGA69,628429+31%

327▲1Hamblen County, TNTN68,843427+18%

328▲1Brazos County, TXTX249,088425+63%

329▼2Catawba County, NCNC170,172424+20%

330▲16Union County, NCNC267,674423+116%

331▼16Buncombe County, NCNC277,417423+34%

332▼12Greene County, OHOH174,322421+18%

333▼16Thurston County, WAWA304,261421+47%

334▼25Porter County, ININ176,049421+20%

335▼30Nueces County, TXTX352,992421+13%

336Lower Connecticut River Valley Planning Region, CTCT177,311418–

337▼7Snohomish County, WAWA870,656417+44%

338▼1DeSoto County, MSMS197,918415+85%

339▼31Island County, WAWA85,657411+20%

340▲11Sumner County, TNTN215,538407+65%

341▼19Carson City, NVNV58,571405+12%

342▼7Ozaukee County, WIWI94,346405+15%

343▼12Lebanon County, PAPA146,380405+22%

344▼12Winnebago County, WIWI174,218401+11%

345▼26Niagara County, NYNY208,912400−5%

346▼5Lancaster County, NENE334,049399+33%

347▲10Clay County, FLFL239,593396+70%

348▼6Sullivan County, TNTN163,759396+7%

349▼9Carroll County, MDMD176,677395+17%

350▼17Washington County, RIRI129,795394+5%

351▲29Benton County, ARAR332,554392+117%

352▼13Roanoke County, VAVA97,150388+13%

353▲13Spotsylvania County, VAVA155,388387+72%

354Charles County, MDMD176,593386+46%

355▼8Orange County, NCNC152,498384+29%

356▼30Ohio County, WVWV40,496383−15%

357▼14Scott County, IAIA175,259383+10%

358▼20Beaver County, PAPA166,032382−8%

359▼11Tippecanoe County, ININ190,456382+28%

360▲4Bell County, TXTX402,248382+69%

361▼25St. Clair County, ILIL250,708381−2%

362▼6Cumberland County, MEME317,222379+19%

363▲21Utah County, UTUT759,859379+106%

364▼6Oldham County, KYKY70,986379+54%

365▼10Harrison County, MSMS217,136379+15%

366▼17Dutchess County, NYNY300,708378+7%

367▲35Horry County, SCSC427,551377+117%

368▲57Comal County, TXTX209,166374+168%

369▼16Luzerne County, PAPA332,126373+4%

370▼18Stanislaus County, CACA557,719373+25%

371▼26Cape May County, NJNJ93,390371−9%

372▲16Iredell County, NCNC211,798369+73%

373▼23Madison County, ILIL263,110368+2%

374▼15Strafford County, NHNH135,043367+20%

375▼8Lubbock County, TXTX328,906367+36%

376▼15Whitfield County, GAGA106,212366+27%

377▼15Monroe County, ININ143,345363+19%

378▲4Coweta County, GAGA160,240363+80%

379▲41Osceola County, FLFL481,718363+179%

380▼8Spalding County, GAGA70,775361+21%

381▼10El Paso County, COCO757,040356+46%

382▼14Jefferson County, MOMO233,132355+18%

383▲6Beaufort County, SCSC204,433355+69%

384▼19Muskegon County, MIMI177,901353+5%

385▼6Riverside County, CACA2,544,916353+65%

386▼3Bradley County, TNTN115,465351+31%

387Clark County, ININ130,451350+35%

388▼15Livingston County, MIMI197,315349+26%

389▲26Walton County, GAGA112,696345+86%

390▼14Washington County, MDMD157,731345+20%

391▲2Indian River County, FLFL172,799344+53%

392▼22Clark County, OHOH135,340342−6%

393▼24Westmoreland County, PAPA349,324340−6%

394▲2Fairfield County, OHOH169,752337+38%

395▼32Hancock County, WVWV27,729336−15%

396▼15Portage County, OHOH163,404335+7%

397▼20Mobile County, ALAL411,658335+3%

398▲20Lincoln County, NCNC98,654333+55%

399▼25Erie County, PAPA265,832333−5%

400▲1Kent County, DEDE194,786332+54%

401▲3Jessamine County, KYKY57,147332+46%

402▼27Rock Island County, ILIL141,869332−5%

403▼11Alachua County, FLFL290,028331+33%

404▼6St. Tammany Parish, LALA279,108330+46%

405▼20Shawnee County, KSKS178,607328+5%

406▼7Henderson County, NCNC122,375328+37%

407▲1Davidson County, NCNC180,182326+22%

408▼13St. Mary's County, MDMD116,692325+35%

409▼18Cumberland County, NJNJ157,148325+7%

410▼32Cabell County, WVWV91,183324−6%

411▲35Johnston County, NCNC256,448324+110%

412▼22Linn County, IAIA232,028324+21%

413▼19Washington County, WIWI139,238323+19%

414▼5Carver County, MNMN114,379323+63%

415▼29Trumbull County, OHOH198,972322−12%

416▼13Nantucket County, MAMA14,758319+55%

417▲26Charlotte County, FLFL217,212319+53%

418▼12Warren County, NJNJ112,953317+10%

419▼12Spokane County, WAWA558,344316+34%

420▼23Chittenden County, VTVT169,115315+15%

421▲6Placer County, CACA442,081314+78%

422▲12Dorchester County, SCSC178,397314+85%

423▲7Lee County, ALAL189,881313+65%

424▼19Hampshire County, MAMA164,065311+8%

425▼12Cecil County, MDMD107,131309+25%

426▼26Sonoma County, CACA486,444309+6%

427▲6Anderson County, SCSC219,930308+33%

428▼17Hunterdon County, NJNJ131,781308+8%

429▲15Brazoria County, TXTX419,080307+73%

430▼16Outagamie County, WIWI195,894307+22%

431▲33Wilson County, TNTN175,033306+97%

432▼9Martin County, FLFL166,272306+31%

433▼4Clark County, NVNV2,407,226305+75%

434▲1Shelby County, ALAL238,552304+66%

435▼7Rowan County, NCNC155,096303+19%

436▲6Jefferson County, WVWV63,102301+50%

437▼18Marion County, OROR355,777301+25%

438▲39Johnson County, TXTX218,048301+72%

439▼22Monongalia County, WVWV107,991300+32%

440▼14Madison County, ININ135,088299+1%

441▼31Boyd County, KYKY47,751299−4%

442▼18Saratoga County, NYNY241,343298+20%

443▲19Hancock County, ININ90,969297+64%

444▲25Sussex County, DEDE277,140296+77%

445▲9Citrus County, FLFL171,666295+45%

446▲70Jackson County, GAGA99,265292+139%

447▼35Erie County, OHOH73,296292−8%

448▼9Bullitt County, KYKY86,454291+41%

449▼28Jefferson County, TXTX254,321290+1%

450▲44Flagler County, FLFL140,360289+182%

451▼35Peoria County, ILIL178,553289−3%

452▼20Delaware County, ININ113,106288−5%

453▲6Washington County, ARAR271,213288+72%

454▼32Montgomery County, ALAL225,891288+1%

455▼24Howard County, ININ83,904286−1%

456▼18Sussex County, NJNJ148,063286+3%

457▼16Wicomico County, MDMD106,899285+26%

458▼9Onslow County, NCNC217,175285+44%

459▼23Monroe County, MIMI156,004284+7%

460▲41Sumter County, FLFL157,772283+196%

461▲23Guadalupe County, TXTX201,111283+126%

462▼1Pitt County, NCNC182,936280+37%

463▼10Pickens County, SCSC139,198280+26%

464▼14Boone County, MOMO191,746280+42%

465▲31Marion County, FLFL442,660279+71%

466▲22Loudon County, TNTN63,764278+63%

467▼30Broome County, NYNY195,736277−2%

468▼17Miami County, OHOH112,634277+14%

469▲7Warren County, KYKY149,375276+61%

470▲8Lee County, NCNC70,258275+43%

471▼31Monroe County, PAPA167,179275+21%

472▼2Smith County, TXTX252,549274+45%

473▼7Platte County, MOMO114,400272+55%

474▼16Licking County, OHOH185,564272+28%

475▼30McCracken County, KYKY67,553272+3%

476▲27Bay County, FLFL204,479270+38%

477▼25La Crosse County, WIWI121,339269+13%

478▼31Berrien County, MIMI152,444268−6%

479▲94Kaufman County, TXTX209,235268+193%

480▼17Douglas County, KSKS120,920265+21%

481▼26Vigo County, ININ106,512264+1%

482Minnehaha County, SDSD212,691264+43%

483▲12Bartow County, GAGA120,800263+59%

484▲5Carroll County, GAGA131,036263+50%

485▼12McLennan County, TXTX272,020262+27%

486▲11Suffolk, VAVA104,699262+64%

487▼13Johnson County, IAIA160,044261+44%

488▼32Ouachita Parish, LALA158,542260+8%

489▼22Orange County, TXTX86,266258+2%

490▲46Ellis County, TXTX240,867257+116%

491▼6Blount County, TNTN143,820257+36%

492▼17Olmsted County, MNMN166,731255+34%

493▼45Caddo Parish, LALA224,226255−11%

494▼29Montgomery County, VAVA98,434254+18%

495▼14Butler County, PAPA200,169254+15%

496▼17Franklin County, KYKY52,649253+10%

497▲18Harnett County, NCNC150,137252+65%

498▼26Richland County, OHOH124,893252−3%

499▼39Dougherty County, GAGA82,616251−14%

500▼32Allen County, OHOH100,881251−7%

SHOWING 1–500 OF 3,144

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Download CSV (full list, 3,144 rows)

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU POPULATION ESTIMATES

Frequently asked

Which county has the highest population density?

New York County, New York ranks #1 with 73,478 (2025 Census Population Estimates).

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?

3,144 counties qualify after filtering for population minimums and data availability. The ranking covers 2025 Census population estimates.

How is population density measured?

Residents per square mile of land area. Source: US Census Bureau, Population Estimates Program (2025).