RANKING · 2020 CENSUS · 500 SHOWN OF 3,131

Most population gained, US counties · 2020

US counties that added the most residents from the 2010 census to 2020, by raw count of people rather than percentage. Harris County, Texas leads at +638,686. 3,131 counties qualify in total. Texas carries 9 of the top 25 entries.

Flip the list · Most population lost, US counties →

All statesAll rankings

SAME RANKING BYCities States Metros

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

USUnited States331,449,281+1,121,309–

01Harris County, TXTX5,045,026+638,686+10%

02Maricopa County, AZAZ4,689,558+603,451−36%

03King County, WAWA2,344,939+338,426+47%

04Clark County, NVNV2,407,226+314,192−50%

05Tarrant County, TXTX2,248,466+301,606+9%

06Bexar County, TXTX2,160,088+294,551+42%

07Orange County, FLFL1,528,002+283,952+30%

08Collin County, TXTX1,297,179+282,124+24%

09Travis County, TXTX1,389,670+265,922+13%

10Dallas County, TXTX2,661,397+245,400−33%

11Denton County, TXTX1,069,346+243,808+53%

12Fort Bend County, TXTX975,191+237,404+84%

13Kings County, NYNY2,653,963+231,374+41%

14Hillsborough County, FLFL1,574,115+230,536+40%

15Riverside County, CACA2,544,916+228,544−39%

16Wake County, NCNC1,257,235+228,417+12%

17Miami-Dade County, FLFL2,802,029+205,332–

18San Diego County, CACA3,282,248+203,321−36%

19Broward County, FLFL2,013,317+196,309−47%

20Mecklenburg County, NCNC1,233,383+195,854+6%

21Los Angeles County, CACA9,694,934+195,404−70%

22Williamson County, TXTX752,827+186,338+69%

23Orange County, CACA3,149,507+176,757−59%

24Queens County, NYNY2,358,182+174,742−37%

25Alameda County, CACA1,636,630+172,082+5%

26Palm Beach County, FLFL1,575,726+172,057−36%

27Sacramento County, CACA1,618,460+166,267−9%

28Montgomery County, TXTX781,194+164,697+48%

29Franklin County, OHOH1,361,536+160,393+49%

30Salt Lake County, UTUT1,220,916+155,583−10%

31Santa Clara County, CACA1,914,391+154,617−16%

32Gwinnett County, GAGA1,018,099+151,741−36%

33San Bernardino County, CACA2,224,091+146,444−50%

34Fulton County, GAGA1,098,791+146,129−13%

35Utah County, UTUT759,859+142,835+36%

36Lee County, FLFL875,607+142,068+34%

37Duval County, FLFL1,062,963+131,304+24%

38Hennepin County, MNMN1,284,784+129,140+54%

39Middlesex County, MAMA1,669,979+128,917+93%

40Pierce County, WAWA946,288+125,905+10%

41Polk County, FLFL874,790+122,951+57%

42Osceola County, FLFL481,718+119,971+85%

43Contra Costa County, CACA1,170,070+116,902−19%

44Denver County, COCO740,613+115,364+33%

45Snohomish County, WAWA870,656+114,622−18%

46Loudoun County, VAVA449,749+108,648+30%

47New York County, NYNY1,664,862+108,378+118%

48El Paso County, COCO757,040+108,132−10%

49Prince George's County, MDMD970,374+103,781+44%

50Ada County, IDID546,141+102,602+8%

51Pasco County, FLFL674,516+97,194+53%

52Hidalgo County, TXTX921,549+96,012−48%

53San Joaquin County, CACA823,815+93,927+13%

54Hudson County, NJNJ735,033+90,588+62%

55Montgomery County, MDMD1,074,582+90,284−22%

56Davidson County, TNTN745,904+89,203+51%

57District of Columbia, DCDC693,645+87,822−352%

58Bronx County, NYNY1,406,332+87,546−32%

59Lake County, FLFL456,068+86,904+49%

60Hays County, TXTX304,390+83,960+163%

61St. Johns County, FLFL346,328+83,386+112%

62Arapahoe County, COCO673,820+83,067−14%

63Horry County, SCSC427,551+81,738+55%

64Cook County, ILIL5,194,625+80,866−70%

65Prince William County, VAVA502,966+80,202+23%

66Multnomah County, OROR795,391+80,094+5%

67Essex County, NJNJ896,379+79,759+417%

68Rutherford County, TNTN386,352+78,882+24%

69Fresno County, CACA1,035,456+78,204−41%

70Cobb County, GAGA793,345+78,071−51%

71Adams County, COCO554,668+77,969−21%

72Clark County, WAWA532,119+77,948−27%

73Philadelphia County, PAPA1,574,281+77,791−214%

74Oklahoma County, OKOK822,125+77,659+28%

75Manatee County, FLFL468,200+76,877+47%

76Weld County, COCO378,426+76,156+55%

77Suffolk County, MAMA791,891+75,913+193%

78Forsyth County, GAGA282,805+75,772+39%

79Greenville County, SCSC583,125+74,309+25%

80Marion County, ININ992,196+73,810+17%

81Dane County, WIWI590,375+73,431+24%

82Hamilton County, ININ387,036+72,898−1%

83Douglas County, COCO399,396+72,513−37%

84DeKalb County, GAGA774,394+72,489−40%

85Oakland County, MIMI1,288,337+72,033−35%

86Washington County, OROR611,708+70,662−47%

87Kern County, CACA927,068+69,604−41%

88San Francisco County, CACA826,079+68,730+30%

89Fairfax County, VAVA1,167,873+68,583−55%

90Spokane County, WAWA558,344+68,118+20%

91Douglas County, NENE606,460+67,416+43%

92Essex County, MAMA826,653+66,670+25%

93Tulsa County, OKOK698,782+65,876+10%

94Johnson County, KSKS636,906+65,684−32%

95Washoe County, NVNV509,386+65,085−23%

96El Paso County, TXTX877,858+65,010−26%

97Williamson County, TNTN272,061+64,544+41%

98Worcester County, MAMA888,502+63,559+54%

99Honolulu County, HIHI988,703+63,301+59%

100Brevard County, FLFL663,982+63,236−18%

101Pima County, AZAZ1,074,685+63,170−64%

102Benton County, ARAR332,554+62,994+13%

103Polk County, IAIA516,546+61,761+30%

104Ocean County, NJNJ673,746+60,662−22%

105Bell County, TXTX402,248+60,412+29%

106Larimer County, COCO377,292+59,436−9%

107Galveston County, TXTX372,207+59,373+81%

108Volusia County, FLFL606,573+58,950−19%

109Brazoria County, TXTX419,080+58,865+18%

110Charleston County, SCSC436,200+58,026+289%

111Durham County, NCNC347,240+57,246+38%

112Montgomery County, PAPA877,643+56,679−21%

113Placer County, CACA442,081+56,307−26%

114Nassau County, NYNY1,398,939+56,242+19%

115Davis County, UTUT381,227+56,200+10%

116York County, SCSC306,887+56,017+69%

117Kent County, MIMI675,232+55,352−25%

118Westchester County, NYNY1,015,743+55,344+14%

119Norfolk County, MAMA739,749+55,131+61%

120Sarasota County, FLFL479,958+54,558+13%

121Collier County, FLFL417,131+54,232−45%

122Madison County, ALAL433,516+53,342+41%

123Middlesex County, NJNJ883,335+53,304−32%

124Comal County, TXTX209,166+53,029+102%

125Guilford County, NCNC562,234+52,893−28%

126Cherokee County, GAGA299,273+52,274+1%

127Berkeley County, SCSC274,666+52,018+275%

128St. Lucie County, FLFL402,449+51,437+21%

129Bergen County, NJNJ977,026+50,616−14%

130Anne Arundel County, MDMD603,380+50,605−19%

131Baltimore County, MDMD847,650+49,506−20%

132Baldwin County, ALAL267,761+49,502+17%

133Pinal County, AZAZ539,380+49,494−22%

134Jefferson County, COCO580,451+48,367−45%

135Chesterfield County, VAVA397,148+48,312−5%

136Seminole County, FLFL491,884+48,138−38%

137Cabarrus County, NCNC249,725+47,793+49%

138Montgomery County, TNTN249,935+47,738+39%

139Johnston County, NCNC256,448+47,121+16%

140Knox County, TNTN511,453+46,745+1%

141San Mateo County, CACA743,568+45,991−20%

142Clackamas County, OROR426,280+45,409−24%

143Howard County, MDMD339,183+45,232−25%

144St. Charles County, MOMO426,499+44,777−37%

145Marion County, FLFL442,660+44,610−30%

146Ramsey County, MNMN541,623+43,712+73%

147Spartanburg County, SCSC380,857+43,690+62%

148Jackson County, MOMO732,994+43,046+99%

149Ellis County, TXTX240,867+42,845+64%

150Washington County, ARAR271,213+42,806−3%

151Pinellas County, FLFL948,563+42,565−39%

152Thurston County, WAWA304,261+42,529−8%

153Canyon County, IDID275,123+42,182+2%

154Washington County, UTUT213,670+42,164+1%

155Kaufman County, TXTX209,235+41,960+120%

156Jefferson County, KYKY795,222+41,873+46%

157Dakota County, MNMN457,710+41,330−49%

158Guadalupe County, TXTX201,111+41,173+70%

159Deschutes County, OROR213,072+40,520+0%

160Macomb County, MIMI886,221+40,239−43%

161Sussex County, DEDE277,140+40,233−7%

162Orleans Parish, LALA362,154+40,168−428%

163Solano County, CACA455,376+40,147−26%

164Delaware County, OHOH242,032+39,910−7%

165Cleveland County, OKOK303,973+39,773+18%

166Brazos County, TXTX249,088+38,998+28%

167Canadian County, OKOK187,189+38,864+192%

168Union County, NJNJ601,863+38,846+35%

169Stanislaus County, CACA557,719+38,425−50%

170Frederick County, MDMD302,883+38,332−15%

171Clayton County, GAGA297,471+38,171−30%

172Lancaster County, NENE334,049+37,201+2%

173Union County, NCNC267,674+36,975−6%

174Henry County, GAGA264,922+36,790−39%

175Santa Rosa County, FLFL211,115+36,628+1%

176Sumter County, FLFL157,772+36,332+67%

177Boulder County, COCO328,560+36,191−45%

178Plymouth County, MAMA546,829+35,900−4%

179Sumner County, TNTN215,538+35,636+31%

180Chester County, PAPA557,116+35,527−38%

181Erie County, NYNY946,741+35,196−293%

182Cass County, NDND201,794+34,747+71%

183Providence County, RIRI678,179+34,074+35%

184Lee County, ALAL189,881+33,994+22%

185Wilson County, TNTN175,033+33,744+60%

186Dallas County, IAIA118,457+33,543+205%

187Lancaster County, PAPA563,159+33,539−30%

188Midland County, TXTX187,855+33,111+252%

189Anoka County, MNMN381,605+33,043−39%

190Kootenai County, IDID191,864+32,868−15%

191Suffolk County, NYNY1,546,090+32,570−67%

192Ottawa County, MIMI308,459+32,399−36%

193Tuscaloosa County, ALAL241,368+32,380+126%

194New Castle County, DEDE588,026+32,240−45%

195Columbia County, GAGA169,189+31,957+37%

196Forsyth County, NCNC401,718+31,920−21%

197Lubbock County, TXTX328,906+31,808+59%

198Sarpy County, NENE208,303+31,764+59%

199Benton County, WAWA221,722+31,696+6%

200Richland County, SCSC434,956+31,643−9%

201Lexington County, SCSC317,588+31,600−35%

202Clay County, MOMO265,032+31,396+3%

203Parker County, TXTX184,767+31,295+32%

204Lane County, OROR381,584+31,256−22%

205Buncombe County, NCNC277,417+31,134−1%

206Alachua County, FLFL290,028+31,132−14%

207Arlington County, VAVA243,931+31,016+68%

208Weber County, UTUT278,174+30,987−19%

209Tulare County, CACA485,146+30,938−45%

210Bristol County, MAMA593,640+30,915+9%

211Okaloosa County, FLFL221,810+30,846+15%

212St. Tammany Parish, LALA279,108+30,830−34%

213Marion County, OROR355,777+30,585−46%

214Chatham County, GAGA311,855+30,163+100%

215Allen County, ININ402,329+30,081−3%

216Hamilton County, TNTN390,833+29,744+33%

217Warren County, OHOH257,181+29,644−33%

218Rockwall County, TXTX140,738+29,482+69%

219Gallatin County, MTMT128,740+29,447+70%

220Washington County, MNMN286,895+29,432−47%

221Hendricks County, ININ193,510+29,340+3%

222Brunswick County, NCNC174,702+29,262+32%

223Johnson County, TXTX218,048+28,993−2%

224Orange County, NYNY417,669+28,497−15%

225Hamilton County, OHOH838,418+28,265−235%

226Ector County, TXTX173,801+28,041+1181%

227Stafford County, VAVA170,803+27,966−10%

228Shelby County, ALAL238,552+27,939−36%

229Minnehaha County, SDSD212,691+27,746+13%

230Washtenaw County, MIMI370,214+27,467−31%

231Henrico County, VAVA342,775+27,454−38%

232Clay County, FLFL239,593+27,380−21%

233Iredell County, NCNC211,798+27,256−8%

234Allegheny County, PAPA1,225,035+27,230−150%

235Chesapeake, VAVA255,332+27,213−42%

236Richmond County, NYNY501,290+27,017−58%

237Charlotte County, FLFL217,212+26,869−12%

238Onslow County, NCNC217,175+26,804+5085%

239Fayette County, KYKY329,751+26,767−24%

240Rockland County, NYNY357,397+26,642+25%

241Paulding County, GAGA190,996+26,337−34%

242Whatcom County, WAWA236,392+25,707−34%

243McLennan County, TXTX272,020+25,673+5%

244Sedgwick County, KSKS538,433+25,459−48%

245Merced County, CACA297,260+25,409−21%

246Yavapai County, AZAZ252,552+25,176−58%

247Lehigh County, PAPA384,383+25,060+20%

248Dorchester County, SCSC178,397+24,985+87%

249Beaufort County, SCSC204,433+24,884−28%

250Kitsap County, WAWA283,374+24,478−42%

251Santa Barbara County, CACA442,065+24,334−18%

252Escambia County, FLFL333,834+24,286−23%

253Cumberland County, PAPA277,270+24,063+31%

254DeSoto County, MSMS197,918+24,062−39%

255Calcasieu Parish, LALA208,466+24,017+56%

256Monterey County, CACA433,729+23,978−48%

257Smith County, TXTX252,549+23,765+2%

258Greene County, MOMO309,286+23,741−27%

259Houston County, GAGA178,214+23,733+10%

260Hall County, GAGA226,568+23,452−47%

261Bastrop County, TXTX118,908+23,045+18%

262New Hanover County, NCNC245,959+23,035−42%

263Passaic County, NJNJ531,624+22,892−36%

264Richmond, VAVA237,257+22,396−525%

265Butler County, OHOH400,128+22,227−46%

266Hillsborough County, NHNH433,415+22,216−50%

267Johnson County, ININ174,262+22,111−18%

268Johnson County, IAIA160,044+21,972+48%

269Somerset County, NJNJ356,486+21,917−62%

270Gaston County, NCNC246,558+21,857+43%

271Indian River County, FLFL172,799+21,760−4%

272Hernando County, FLFL221,701+21,737−27%

273Harrison County, MSMS217,136+21,516−11%

274Virginia Beach, VAVA453,737+21,476−33%

275York County, PAPA473,197+21,466−49%

276Cumberland County, MEME317,222+21,395−5%

277Bucks County, PAPA647,828+21,289−62%

278Scott County, MNMN159,017+21,000−34%

279Boone County, MOMO191,746+20,968−9%

280Mercer County, NJNJ399,289+20,827−16%

281Limestone County, ALAL122,928+20,788+80%

282Warren County, KYKY149,375+20,762+31%

283Brown County, WIWI275,803+20,733−36%

284Ventura County, CACA830,851+20,525−76%

285Cache County, UTUT145,000+20,498−3%

286Lincoln County, SDSD77,145+20,333+134%

287Alamance County, NCNC186,177+20,284−10%

288Walton County, FLFL93,288+20,262+58%

289Lafayette Parish, LALA257,949+20,175−22%

290Charles County, MDMD176,593+20,066+3%

291Jackson County, OROR221,795+20,053−43%

292Randall County, TXTX152,351+20,028+37%

293Maury County, TNTN118,131+20,018+36%

294Bonneville County, IDID135,771+19,730+91%

295Flagler County, FLFL140,360+19,682−7%

296Kent County, DEDE194,786+19,541+24%

297Alexandria, VAVA160,662+19,501+14%

298Lancaster County, SCSC114,296+19,364+183%

299Ascension Parish, LALA135,105+19,285+5%

300Linn County, IAIA232,028+19,073−17%

301Rockingham County, NHNH324,077+18,953−40%

302Harnett County, NCNC150,137+18,890−19%

303Coweta County, GAGA160,240+18,841−47%

304Will County, ILIL712,253+18,795−87%

305Olmsted County, MNMN166,731+18,599+4%

306Franklin County, WAWA102,612+18,586+57%

307Williams County, NDND41,767+18,552−1456%

308Dauphin County, PAPA293,351+18,301+31%

309Broomfield County, COCO79,174+18,223–

310Matanuska-Susitna, AKAK118,666+18,086−8%

311Berkeley County, WVWV139,522+17,907+8%

312Delaware County, PAPA580,937+17,851+456%

313Spotsylvania County, VAVA155,388+17,635−47%

314Berks County, PAPA440,072+17,407−53%

315Platte County, MOMO114,400+17,396+9%

316Sandoval County, NMNM159,565+17,273−35%

317Boone County, KYKY145,316+17,157−40%

318Burleigh County, NDND103,251+17,150+85%

319Kendall County, ILIL145,470+17,133+13%

320Waukesha County, WIWI417,210+17,087−70%

321Nassau County, FLFL106,879+17,038+24%

322Muscogee County, GAGA202,171+17,037+143%

323Morris County, NJNJ524,251+17,009−65%

324Webb County, TXTX281,224+16,810−72%

325Yellowstone County, MTMT172,692+16,759+5%

326Leon County, FLFL299,048+16,711−64%

327Wright County, MNMN157,559+16,637−22%

328East Baton Rouge Parish, LALA456,180+16,610−49%

329Anderson County, SCSC219,930+16,592−19%

330Pulaski County, ARAR404,611+16,377+39%

331Saline County, ARAR133,288+16,298−16%

332Jefferson County, ALAL665,742+16,255+54%

333Harford County, MDMD266,446+16,098−56%

334Liberty County, TXTX121,364+15,985−8%

335DuPage County, ILIL934,298+15,953−87%

336Saratoga County, NYNY241,343+15,902−18%

337Carver County, MNMN114,379+15,880−29%

338Yolo County, CACA224,410+15,554−44%

339Hawaii County, HIHI210,043+15,550−45%

340Jackson County, GAGA99,265+15,422+33%

341Rankin County, MSMS162,181+15,414−45%

342Madison County, IDID55,172+15,377+305%

343Cumberland County, NCNC338,473+15,297−46%

344Northampton County, PAPA324,411+15,216−24%

345Monroe County, NYNY750,506+15,099−29%

346Orange County, NCNC152,498+14,895−39%

347York County, MEME222,434+14,841−33%

348Cameron County, TXTX433,946+14,797−80%

349Craighead County, ARAR116,957+14,788+12%

350Grayson County, TXTX153,613+14,666−6%

351Bryan County, GAGA52,062+14,505+82%

352Tooele County, UTUT87,461+14,480+2%

353Livingston Parish, LALA155,036+14,256−33%

354Boone County, ININ80,689+14,172+78%

355Barrow County, GAGA99,773+14,138−14%

356Outagamie County, WIWI195,894+14,010−32%

357Gloucester County, NJNJ312,638+14,006−43%

358Madison County, MSMS116,298+13,942−33%

359Bernalillo County, NMNM667,601+13,880−82%

360Hunt County, TXTX123,336+13,827+13%

361Waller County, TXTX69,858+13,589+47%

362Yakima County, WAWA259,185+13,497−60%

363Tippecanoe County, ININ190,456+13,471−27%

364Flathead County, MTMT115,429+13,429−12%

365Albemarle County, VAVA118,356+13,425+20%

366Monmouth County, NJNJ651,035+13,235−79%

367Burlington County, NJNJ481,439+13,126−54%

368Frederick County, VAVA99,955+13,114−3%

369Barnstable County, MAMA233,539+13,108−63%

370Mohave County, AZAZ228,102+13,081−79%

371Nueces County, TXTX352,992+12,955−42%

372Walton County, GAGA112,696+12,905−42%

373Livingston County, MIMI197,315+12,899−69%

374Twin Falls County, IDID97,539+12,816+20%

375San Luis Obispo County, CACA282,367+12,787−57%

376Chatham County, NCNC85,111+12,780+21%

377Fairfield County, OHOH169,752+12,765−34%

378Fayette County, GAGA125,156+12,627−56%

379Skagit County, WAWA132,975+12,622−46%

380Citrus County, FLFL171,666+12,607−49%

381Newton County, GAGA125,583+12,525−38%

382Effingham County, GAGA74,397+12,519+6%

383Blount County, TNTN143,820+12,270−38%

384Pickens County, SCSC139,198+12,180−28%

385Martin County, FLFL166,272+12,113−53%

386Tangipahoa Parish, LALA141,346+12,060−19%

387Polk County, OROR90,037+12,030−6%

388Licking County, OHOH185,564+12,027−30%

389Clarke County, GAGA129,921+11,957−14%

390Linn County, OROR132,843+11,938+1%

391Douglas County, GAGA154,293+11,834−44%

392Chittenden County, VTVT169,115+11,778−20%

393Bossier Parish, LALA131,867+11,767−4%

394Wyandotte County, KSKS170,597+11,740−386%

395Taylor County, TXTX150,077+11,702+70%

396Lorain County, OHOH323,219+11,608−14%

397Moore County, NCNC110,619+11,480−27%

398Chambers County, TXTX57,594+11,475+93%

399Christian County, MOMO96,725+11,420−47%

400Kalamazoo County, MIMI263,795+11,339−25%

401Wasatch County, UTUT38,514+11,258+120%

402James City County, VAVA83,326+11,245−15%

403Clermont County, OHOH216,977+11,238−60%

404Iron County, UTUT67,141+11,126−14%

405Bulloch County, GAGA86,949+10,882−15%

406Lake County, ILIL719,339+10,880−91%

407Kendall County, TXTX53,289+10,869+19%

408Clark County, ININ130,451+10,861+25%

409Bedford County, VAVA83,059+10,786−27%

410Coconino County, AZAZ144,368+10,680−46%

411Santa Fe County, NMNM156,907+10,653−65%

412Albany County, NYNY321,225+10,644+440%

413Union County, OHOH73,446+10,484+17%

414Hood County, TXTX70,501+10,416−14%

415Doña Ana County, NMNM229,091+10,328−74%

416Faulkner County, ARAR133,979+10,261−61%

417Medina County, OHOH185,025+10,138−65%

418El Dorado County, CACA192,323+10,127−67%

419Hanover County, VAVA116,423+10,116−56%

420Washington County, TNTN141,199+10,022−33%

421Grant County, WAWA105,727+10,003−50%

422Scott County, KYKY62,262+9,982+9%

423Maui County, HIHI160,592+9,920−64%

424Marin County, CACA253,694+9,912−42%

425Butler County, PAPA200,169+9,901−55%

426Hancock County, ININ90,969+9,838−0%

427Camden County, NJNJ535,799+9,828+61%

428Madison County, KYKY101,696+9,785−27%

429Monroe County, FLFL80,406+9,784+525%

430Tom Green County, TXTX120,602+9,779+76%

431Suffolk, VAVA104,699+9,739−16%

432Lea County, NMNM74,749+9,728−3930%

433Lebanon County, PAPA146,380+9,689+47%

434Bradley County, TNTN115,465+9,657−32%

435Monongalia County, WVWV107,991+9,633+52%

436Benton County, OROR97,728+9,605+31%

437Henderson County, NCNC122,375+9,541−52%

438Wise County, TXTX83,778+9,505−33%

439Onondaga County, NYNY466,584+9,490−189%

440Elkhart County, ININ208,774+9,488−64%

441Stark County, NDND34,013+9,447−4920%

442Scott County, IAIA175,259+9,445+23%

443Yuba County, CACA88,691+9,420+373%

444Kenton County, KYKY175,779+9,344−1%

445St. Croix County, WIWI98,276+9,191−29%

446Pueblo County, COCO169,277+9,099−51%

447Allegan County, MIMI123,188+9,094−40%

448Lowndes County, GAGA122,867+9,018−44%

449Story County, IAIA101,291+8,995+57%

450Oconee County, GAGA44,893+8,991+4%

451Mesa County, COCO162,845+8,980−61%

452San Benito County, CACA70,082+8,940−46%

453Porter County, ININ176,049+8,872−50%

454Laramie County, WYWY102,938+8,774+4%

455Bartow County, GAGA120,800+8,744−57%

456Aiken County, SCSC181,515+8,709−60%

457Sherburne County, MNMN104,194+8,684−61%

458Elmore County, ALAL91,577+8,674−48%

459St. Mary's County, MDMD116,692+8,626−16%

460Missoula County, MTMT123,513+8,623−50%

461Carroll County, GAGA131,036+8,621−46%

462Lamar County, MSMS67,403+8,564−1%

463Lincoln County, NCNC98,654+8,545−37%

464Walker County, TXTX83,842+8,539−21%

465Yamhill County, OROR110,024+8,529−56%

466Sevier County, TNTN101,342+8,491−58%

467Eddy County, NMNM62,509+8,485+178%

468Santa Cruz County, CACA258,852+8,479−67%

469Lafayette County, MSMS59,597+8,462+22%

470Rowan County, NCNC155,096+8,447−57%

471Rockdale County, GAGA98,416+8,355−48%

472Island County, WAWA85,657+8,351−27%

473Cass County, MOMO115,859+8,346−54%

474McKenzie County, NDND15,192+8,344−1392%

475Rogers County, OKOK102,197+8,335−46%

476Cowlitz County, WAWA114,885+8,320−23%

477Pennington County, SDSD116,792+8,274+15%

478Grand Traverse County, MIMI96,729+8,252−38%

479Ward County, NDND68,233+8,244+843%

480Jefferson Parish, LALA431,398+8,229+15%

481Yuma County, AZAZ224,449+8,130−85%

482Jefferson County, MOMO233,132+8,006−70%

483Pender County, NCNC72,111+7,986−35%

484Douglas County, KSKS120,920+7,959−56%

485Franklin County, NCNC82,037+7,954−27%

486Bullitt County, KYKY86,454+7,898−42%

487Wagoner County, OKOK93,263+7,896−18%

488St. Bernard Parish, LALA45,642+7,867+1216%

489Caldwell County, TXTX55,150+7,817+35%

490Fauquier County, VAVA76,503+7,769+21%

491Strafford County, NHNH135,043+7,746−3%

492Logan County, OKOK55,473+7,707+57%

493Coryell County, TXTX85,592+7,705−28%

494Box Elder County, UTUT65,320+7,691+23%

495Stearns County, MNMN164,110+7,650−47%

496Nye County, NVNV57,336+7,645−48%

497Lewis and Clark County, MTMT75,331+7,578−8%

498Putnam County, TNTN86,612+7,533−31%

499St. Clair County, ALAL98,206+7,510−49%

500Cullman County, ALAL94,009+7,460−24%

SHOWING 1–500 OF 3,131

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Download CSV (full list, 3,131 rows)

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

Frequently asked

Which county has the highest population change?

Harris County, Texas ranks #1 with +638,686 (2020 Decennial Census).

What are the top 5 counties by population change?

Harris County, Texas, Maricopa County, Arizona, King County, Washington, Clark County, Nevada, Tarrant County, Texas.

How many counties are in this ranking?

3,131 counties qualify after filtering for population minimums and data availability. The ranking covers 2020 Decennial Census data.

How is population change measured?

Change in the number of residents from the prior decennial census (raw count, not a percentage). Source: US Census Bureau, 2020 Decennial Census.