RANKING · 1990 CENSUS · 500 SHOWN OF 3,122

Most densely populated, US counties · 1990

US counties ranked by residents per square mile (1990). New York County, New York leads at 65,652. 3,122 counties qualify in total. New York carries 6 of the top 25 entries. The median across all 3,122 is 38.

Flip the list · Most sparsely populated, US counties →

All statesAll rankings

SAME RANKING BYCities States Metros

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS –

USUnited States248,709,873221–

01New York County, NYNY1,664,86265,652–

02Kings County, NYNY2,653,96333,162–

03Bronx County, NYNY1,406,33228,542–

04Queens County, NYNY2,358,18217,950–

05San Francisco County, CACA826,07915,502–

06Hudson County, NJNJ735,03311,973–

07Philadelphia County, PAPA1,574,28111,801–

08Suffolk County, MAMA791,89111,397–

09District of Columbia, DCDC693,6459,929–

10Baltimore, MDMD569,9979,093–

11Alexandria, VAVA160,6627,444–

12Richmond County, NYNY501,2906,588–

13Arlington County, VAVA243,9316,575–

14St. Louis, MOMO278,1446,427–

15Essex County, NJNJ896,3796,172–

16Cook County, ILIL5,194,6255,403–

17Norfolk, VAVA231,0134,903–

18Union County, NJNJ601,8634,805–

19Falls Church, VAVA15,1594,681–

20Nassau County, NYNY1,398,9394,524–

21Milwaukee County, WIWI924,2163,973–

22Charlottesville, VAVA44,3883,938–

23Bergen County, NJNJ977,0263,546–

24Wayne County, MIMI1,769,0383,451–

25Richmond, VAVA237,2573,389–

26Ramsey County, MNMN541,6233,191–

27Fairfax, VAVA26,7723,144–

28Portsmouth, VAVA96,7773,120–

29Pinellas County, FLFL948,5633,111–

30Cuyahoga County, OHOH1,232,9253,089–

31Denver County, COCO740,6133,055–

32Orange County, CACA3,149,5073,040–

33Delaware County, PAPA580,9372,979–

34Orleans Parish, LALA362,1542,932–

35Manassas, VAVA44,3322,840–

36Lexington, VAVA7,7692,785–

37Hampton, VAVA137,3152,600–

38Newport News, VAVA183,2302,465–

39Passaic County, NJNJ531,6242,434–

40Winchester, VAVA28,2722,387–

41DuPage County, ILIL934,2982,384–

42Camden County, NJNJ535,7992,272–

43Roanoke, VAVA99,1112,267–

44Hopewell, VAVA23,2612,231–

45Manassas Park, VAVA16,5602,220–

46Los Angeles County, CACA9,694,9342,183–

47Middlesex County, NJNJ883,3352,172–

48Colonial Heights, VAVA18,7382,136–

49Hamilton County, OHOH838,4182,136–

50Dallas County, TXTX2,661,3972,122–

51Fairfax County, VAVA1,167,8732,093–

52DeKalb County, GAGA774,3942,039–

53Westchester County, NYNY1,015,7432,031–

54Bristol County, RIRI50,0012,025–

55Marion County, ININ992,1962,013–

56St. Louis County, MOMO990,9111,956–

57Hennepin County, MNMN1,284,7841,864–

58Allegheny County, PAPA1,225,0351,831–

59Fredericksburg, VAVA30,3931,821–

60Franklin County, OHOH1,361,5361,806–

61Harrisonburg, VAVA50,8391,771–

62Jefferson County, KYKY795,2221,746–

63Alameda County, CACA1,636,6301,735–

64Middlesex County, MAMA1,669,9791,710–

65Petersburg, VAVA33,7341,690–

66Harris County, TXTX5,045,0261,651–

67Radford, VAVA17,2431,647–

68Salem, VAVA25,8161,637–

69Virginia Beach, VAVA453,7371,606–

70Norfolk County, MAMA739,7491,555–

71Montgomery County, MDMD1,074,5821,535–

72Rockland County, NYNY357,3971,528–

73Prince George's County, MDMD970,3741,511–

74Macomb County, MIMI886,2211,497–

75Jefferson Parish, LALA431,3981,490–

76Martinsville, VAVA13,8491,475–

77Providence County, RIRI678,1791,456–

78Mercer County, NJNJ399,2891,451–

79Suffolk County, NYNY1,546,0901,451–

80San Mateo County, CACA743,5681,448–

81Bristol, VAVA16,4181,432–

82Montgomery County, PAPA877,6431,404–

83Honolulu County, HIHI988,7031,392–

84Lucas County, OHOH423,3471,361–

85Essex County, MAMA826,6531,361–

86Multnomah County, OROR795,3911,355–

87Tarrant County, TXTX2,248,4661,352–

88Lynchburg, VAVA81,3471,349–

89Cobb County, GAGA793,3451,318–

90Williamsburg, VAVA15,8611,290–

91Clayton County, GAGA297,4711,284–

92Covington, VAVA5,6801,278–

93Douglas County, NENE606,4601,276–

94Oakland County, MIMI1,288,3371,249–

95Summit County, OHOH538,3761,248–

96Montgomery County, OHOH539,5981,244–

97Danville, VAVA41,6471,240–

98Waynesboro, VAVA23,9511,239–

99Fulton County, GAGA1,098,7911,232–

100Staunton, VAVA26,8011,228–

101Monmouth County, NJNJ651,0351,181–

102Lake County, ILIL719,3391,164–

103Santa Clara County, CACA1,914,3911,160–

104Baltimore County, MDMD847,6501,157–

105Contra Costa County, CACA1,170,0701,121–

106Monroe County, NYNY750,5061,087–

107Shelby County, TNTN910,2261,085–

108Sacramento County, CACA1,618,4601,079–

109Wyandotte County, KSKS170,5971,068–

110Jackson County, MOMO732,9941,047–

111Broward County, FLFL2,013,3171,044–

112New Castle County, DEDE588,0261,037–

113Anne Arundel County, MDMD603,3801,030–

114Davidson County, TNTN745,9041,015–

115Buena Vista, VAVA6,672995–

116Mecklenburg County, NCNC1,233,383977–

117Salt Lake County, UTUT1,220,916964–

118Kent County, RIRI173,495956–

119Bexar County, TXTX2,160,088956–

120Lake County, ININ504,612953–

121Franklin, VAVA8,478950–

122Lake County, OHOH232,217939–

123Henrico County, VAVA342,775932–

124Seminole County, FLFL491,884929–

125Erie County, NYNY946,741929–

126Bristol County, MAMA593,640915–

127Morris County, NJNJ524,251914–

128Bucks County, PAPA647,828895–

129Kenton County, KYKY175,779886–

130Tulsa County, OKOK698,782883–

131Duval County, FLFL1,062,963882–

132Newport County, RIRI83,051851–

133Oklahoma County, OKOK822,125846–

134Lehigh County, PAPA384,383843–

135East Baton Rouge Parish, LALA456,180834–

136Muscogee County, GAGA202,171828–

137Gwinnett County, GAGA1,018,099819–

138Hillsborough County, FLFL1,574,115816–

139Galax, VAVA6,670810–

140Somerset County, NJNJ356,486796–

141Fayette County, KYKY329,751794–

142Emporia, VAVA5,447769–

143Orange County, FLFL1,528,002750–

144Johnson County, KSKS636,906750–

145Howard County, MDMD339,183746–

146Hampden County, MAMA464,338740–

147Clarke County, GAGA129,921734–

148Schenectady County, NYNY162,581729–

149Poquoson, VAVA13,292717–

150Gloucester County, NJNJ312,638715–

151King County, WAWA2,344,939712–

152Vanderburgh County, ININ181,995707–

153Ocean County, NJNJ673,746689–

154Genesee County, MIMI401,093676–

155Northampton County, PAPA324,411668–

156Plymouth County, MAMA546,829661–

157Knox County, TNTN511,453661–

158Forsyth County, NCNC401,718652–

159Mahoning County, OHOH224,706644–

160Prince William County, VAVA502,966643–

161Stark County, OHOH373,771639–

162Durham County, NCNC347,240632–

163New Hanover County, NCNC245,959626–

164Butler County, OHOH400,128625–

165Lafayette Parish, LALA257,949613–

166Kane County, ILIL525,757611–

167Onondaga County, NYNY466,584602–

168Bibb County, GAGA157,556601–

169San Diego County, CACA3,282,248593–

170Kent County, MIMI675,232590–

171Jefferson County, ALAL665,742586–

172Richmond County, GAGA206,559585–

173El Paso County, TXTX877,858584–

174Travis County, TXTX1,389,670580–

175Davis County, UTUT381,227579–

176Anoka County, MNMN381,605577–

177Jefferson County, COCO580,451574–

178Galveston County, TXTX372,207573–

179Polk County, IAIA516,546572–

180Norton, VAVA3,477568–

181Albany County, NYNY321,225560–

182Waukesha County, WIWI417,210554–

183Campbell County, KYKY95,441554–

184Lorain County, OHOH323,219553–

185St. Joseph County, ININ272,861540–

186Guilford County, NCNC562,234538–

187Hamilton County, TNTN390,833527–

188Racine County, WIWI198,919526–

189Santa Cruz County, CACA258,852516–

190Wake County, NCNC1,257,235507–

191Ingham County, MIMI289,709507–

192Chester County, PAPA557,116501–

193Chatham County, GAGA311,855501–

194Sarasota County, FLFL479,958500–

195Burlington County, NJNJ481,439494–

196Chesterfield County, VAVA397,148494–

197Winnebago County, ILIL283,674493–

198Gaston County, NCNC246,558492–

199Arapahoe County, COCO673,820491–

200Dakota County, MNMN457,710489–

201Ohio County, WVWV40,496481–

202Kitsap County, WAWA283,374480–

203Lackawanna County, PAPA216,502477–

204Barnstable County, MAMA233,539473–

205Kenosha County, WIWI168,448472–

206Worcester County, MAMA888,502470–

207Pulaski County, ARAR404,611461–

208Allen County, ININ402,329458–

209Dauphin County, PAPA293,351453–

210Chesapeake, VAVA255,332449–

211Lancaster County, PAPA563,159448–

212Marin County, CACA253,694442–

213Palm Beach County, FLFL1,575,726440–

214Floyd County, ININ82,153434–

215Sarpy County, NENE208,303431–

216Washington County, OROR611,708430–

217Lee County, FLFL875,607429–

218Beaver County, PAPA166,032428–

219Will County, ILIL712,253427–

220Hancock County, WVWV27,729426–

221Niagara County, NYNY208,912423–

222Cumberland County, NCNC338,473421–

223Rockdale County, GAGA98,416417–

224Harford County, MDMD266,446417–

225Solano County, CACA455,376414–

226Bernalillo County, NMNM667,601414–

227Greenville County, SCSC583,125407–

228York County, VAVA71,374405–

229Sedgwick County, KSKS538,433405–

230Atlantic County, NJNJ278,657404–

231Washtenaw County, MIMI370,214401–

232Escambia County, FLFL333,834400–

233St. Clair County, ILIL250,708400–

234Kalamazoo County, MIMI263,795398–

235Brevard County, FLFL663,982393–

236Berks County, PAPA440,072393–

237Clay County, MOMO265,032386–

238Gregg County, TXTX126,095384–

239Hillsborough County, NHNH433,415383–

240St. Charles County, MOMO426,499380–

241Washington County, MNMN286,895379–

242Orange County, NYNY417,669379–

243Clark County, WAWA532,119379–

244Cape May County, NJNJ93,390378–

245Richland County, SCSC434,956377–

246Pasco County, FLFL674,516377–

247York County, PAPA473,197375–

248Clark County, OHOH135,340373–

249Trumbull County, OHOH198,972369–

250Luzerne County, PAPA332,126369–

251Brown County, WIWI275,803367–

252Putnam County, NYNY99,028365–

253Ventura County, CACA830,851363–

254Westmoreland County, PAPA349,324360–

255Cumberland County, PAPA277,270358–

256Douglas County, GAGA154,293355–

257Rockingham County, NHNH324,077354–

258Pierce County, WAWA946,288351–

259Madison County, ILIL263,110348–

260Rock Island County, ILIL141,869348–

261Sullivan County, TNTN163,759347–

262Nueces County, TXTX352,992347–

263San Joaquin County, CACA823,815345–

264Erie County, PAPA265,832345–

265Cabell County, WVWV91,183345–

266Elkhart County, ININ208,774337–

267Volusia County, FLFL606,573337–

268Washington County, RIRI129,795334–

269Ottawa County, MIMI308,459333–

270Clermont County, OHOH216,977332–

271Greene County, OHOH174,322331–

272Scott County, IAIA175,259330–

273Dutchess County, NYNY300,708326–

274Cleveland County, OKOK303,973323–

275Winnebago County, WIWI174,218323–

276Charleston County, SCSC436,200321–

277Fayette County, GAGA125,156321–

278Boyd County, KYKY47,751320–

279Roanoke County, VAVA97,150317–

280Muskegon County, MIMI177,901315–

281Lebanon County, PAPA146,380314–

282Collin County, TXTX1,297,179314–

283Hamblen County, TNTN68,843313–

284Ozaukee County, WIWI94,346313–

285Denton County, TXTX1,069,346311–

286Boulder County, COCO328,560310–

287Porter County, ININ176,049308–

288Mobile County, ALAL411,658308–

289Greene County, MOMO309,286308–

290Dane County, WIWI590,375307–

291Erie County, OHOH73,296306–

292Delaware County, ININ113,106305–

293McHenry County, ILIL317,751304–

294Brooke County, WVWV21,142303–

295Broome County, NYNY195,736301–

296Madison County, ALAL433,516298–

297Shawnee County, KSKS178,607296–

298Peoria County, ILIL178,553296–

299Catawba County, NCNC170,172295–

300Dougherty County, GAGA82,616293–

301Portage County, OHOH163,404293–

302Hinds County, MSMS211,888293–

303Cameron County, TXTX433,946292–

304Cumberland County, MEME317,222291–

305Medina County, OHOH185,025290–

306Madison County, ININ135,088289–

307Island County, WAWA85,657289–

308Harrison County, MSMS217,136288–

309Leon County, FLFL299,048288–

310Cumberland County, NJNJ157,148286–

311Manatee County, FLFL468,200285–

312Berrien County, MIMI152,444284–

313Warren County, OHOH257,181284–

314Strafford County, NHNH135,043284–

315Washington County, TNTN141,199283–

316Caddo Parish, LALA224,226282–

317Spartanburg County, SCSC380,857281–

318Carson City, NVNV58,571280–

319Hampshire County, MAMA164,065278–

320Spalding County, GAGA70,775278–

321Monroe County, ININ143,345276–

322Hamilton County, ININ387,036276–

323Howard County, ININ83,904276–

324Carroll County, MDMD176,677276–

325Johnson County, ININ174,262275–

326Cabarrus County, NCNC249,725274–

327Jefferson County, TXTX254,321273–

328Allen County, OHOH100,881273–

329Lawrence County, PAPA83,911269–

330Buncombe County, NCNC277,417266–

331Montgomery County, ALAL225,891266–

332Washington County, MDMD157,731265–

333Saginaw County, MIMI187,688265–

334Vigo County, ININ106,512263–

335St. Lucie County, FLFL402,449263–

336Catoosa County, GAGA69,628262–

337Tippecanoe County, ININ190,456262–

338Fort Bend County, TXTX975,191262–

339Jefferson County, MOMO233,132261–

340Weber County, UTUT278,174259–

341Warren County, NJNJ112,953257–

342Alamance County, NCNC186,177256–

343Lancaster County, NENE334,049255–

344Richland County, OHOH124,893255–

345McCracken County, KYKY67,553253–

346Sussex County, NJNJ148,063253–

347Bay County, MIMI102,123253–

348Hunterdon County, NJNJ131,781252–

349Whitfield County, GAGA106,212249–

350Blair County, PAPA119,541249–

351Lubbock County, TXTX328,906249–

352Stanislaus County, CACA557,719248–

353Sonoma County, CACA486,444246–

354Chittenden County, VTVT169,115245–

355James City County, VAVA83,326245–

356Hidalgo County, TXTX921,549244–

357Monroe County, MIMI156,004243–

358Hall County, GAGA226,568243–

359Orange County, TXTX86,266241–

360Calvert County, MDMD94,484241–

361Lexington County, SCSC317,588240–

362Washington County, PAPA210,802239–

363Houston County, GAGA178,214237–

364Wood County, WVWV82,385237–

365Cambria County, PAPA128,968237–

366Rensselaer County, NYNY160,510237–

367Orange County, NCNC152,498236–

368Clark County, ININ130,451236–

369Linn County, IAIA232,028235–

370Boone County, KYKY145,316234–

371Chemung County, NYNY80,415234–

372Ouachita Parish, LALA158,542233–

373Maricopa County, AZAZ4,689,558231–

374Kanawha County, WVWV172,381230–

375Miami County, OHOH112,634229–

376Davidson County, NCNC180,182229–

377Columbia County, GAGA169,189228–

378Stafford County, VAVA170,803227–

379Frederick County, MDMD302,883227–

380Adams County, COCO554,668227–

381Polk County, FLFL874,790225–

382Androscoggin County, MEME116,487225–

383Bradley County, TNTN115,465224–

384Saratoga County, NYNY241,343224–

385Snohomish County, WAWA870,656223–

386Thurston County, WAWA304,261223–

387Washington County, WIWI139,238221–

388Charles County, MDMD176,593221–

389Outagamie County, WIWI195,894220–

390Black Hawk County, IAIA131,532219–

391La Crosse County, WIWI121,339217–

392Rowan County, NCNC155,096216–

393Cherokee County, GAGA299,273214–

394Hernando County, FLFL221,701214–

395Jackson County, MIMI159,552213–

396St. Mary's County, MDMD116,692212–

397Northumberland County, PAPA89,920211–

398Franklin County, KYKY52,649211–

399Monongalia County, WVWV107,991210–

400Brazos County, TXTX249,088208–

401Alachua County, FLFL290,028207–

402Oneida County, NYNY226,392207–

403Cecil County, MDMD107,131206–

404Sangamon County, ILIL194,170205–

405Fairfield County, OHOH169,752205–

406Spokane County, WAWA558,344205–

407Livingston County, MIMI197,315205–

408Columbiana County, OHOH99,377204–

409Buchanan County, MOMO83,540204–

410Anderson County, SCSC219,930203–

411Sheboygan County, WIWI118,047203–

412Geauga County, OHOH95,676203–

413Anderson County, TNTN82,066202–

414Macon County, ILIL99,300202–

415St. Clair County, MIMI160,486202–

416Rockwall County, TXTX140,738201–

417Ascension Parish, LALA135,105201–

418Wicomico County, MDMD106,899199–

419Tompkins County, NYNY104,047198–

420Salem County, NJNJ66,280197–

421Jefferson County, OHOH63,597197–

422Onslow County, NCNC217,175197–

423Forsyth County, GAGA282,805196–

424Schuylkill County, PAPA145,085196–

425Ada County, IDID546,141196–

426Sumner County, TNTN215,538195–

427Wichita County, TXTX129,555195–

428Rock County, WIWI166,472194–

429Marion County, OROR355,777193–

430York County, SCSC306,887193–

431Butler County, PAPA200,169193–

432Calhoun County, MIMI133,408193–

433Calhoun County, ALAL115,834192–

434Rutherford County, TNTN386,352191–

435Tazewell County, ILIL130,049191–

436Montgomery County, VAVA98,434191–

437Daviess County, KYKY104,898190–

438Kent County, DEDE194,786189–

439Wayne County, NCNC122,278189–

440Pickens County, SCSC139,198189–

441Licking County, OHOH185,564188–

442Sebastian County, ARAR130,641187–

443El Paso County, COCO757,040187–

444Etowah County, ALAL103,886187–

445St. John the Baptist Parish, LALA39,875186–

446Montgomery County, TNTN249,935186–

447Hendricks County, ININ193,510186–

448Henderson County, NCNC122,375186–

449Martin County, FLFL166,272186–

450Marion County, WVWV55,584185–

451Barrow County, GAGA99,773185–

452Berkeley County, WVWV139,522185–

453Henry County, GAGA264,922184–

454Fayette County, PAPA123,021184–

455Wood County, OHOH134,176184–

456Wayne County, OHOH116,758183–

457Cleveland County, NCNC103,325182–

458McLennan County, TXTX272,020182–

459Bell County, TXTX402,248181–

460Mercer County, PAPA107,860180–

461Wilson County, NCNC81,150180–

462Indian River County, FLFL172,799180–

463Douglas County, KSKS120,920179–

464Grant County, ININ66,524179–

465Wayne County, ININ66,169179–

466LaPorte County, ININ111,294179–

467Oldham County, KYKY70,986178–

468Allegany County, MDMD66,848178–

469Jessamine County, KYKY57,147177–

470St. Bernard Parish, LALA45,642176–

471Clay County, FLFL239,593175–

472Montgomery County, TXTX781,194175–

473Champaign County, ILIL209,972174–

474Morgan County, ALAL126,483173–

475Jefferson County, WVWV63,102172–

476St. Tammany Parish, LALA279,108171–

477Lincoln County, NCNC98,654170–

478Bay County, FLFL204,479167–

479Loudoun County, VAVA449,749167–

480Harrison County, WVWV64,221167–

481York County, MEME222,434166–

482Los Alamos County, NMNM19,407166–

483Pitt County, NCNC182,936165–

484Smith County, TXTX252,549164–

485Boone County, MOMO191,746164–

486Charlotte County, FLFL217,212163–

487Olmsted County, MNMN166,731163–

488Scott County, MNMN159,017162–

489Cole County, MOMO77,908162–

490Riverside County, CACA2,544,916162–

491Lee County, NCNC70,258162–

492Iredell County, NCNC211,798162–

493Eaton County, MIMI109,581161–

494Citrus County, FLFL171,666161–

495Bullitt County, KYKY86,454160–

496Lake County, FLFL456,068160–

497Jackson County, MSMS147,666159–

498Floyd County, GAGA101,378159–

499Marion County, OHOH65,115159–

500Calcasieu Parish, LALA208,466158–

SHOWING 1–500 OF 3,122

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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 65,652 (1990 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?

3,122 counties qualify after filtering for population minimums and data availability. The ranking covers 1990 Decennial Census data.

How is population density measured?

Residents per square mile of land area. Source: US Census Bureau, 1990 Decennial Census.