RANKING · 2010 CENSUS · 500 SHOWN OF 3,125

Most population gained, US counties · 2010

US counties that added the most residents from the 2000 census to 2010, by raw count of people rather than percentage. Maricopa County, Arizona leads at +744,968. 3,125 counties qualify in total. Texas carries 8 of the top 25 entries.

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All statesAll rankings

SAME RANKING BYCities States Metros

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

USUnited States308,745,538+1,333,560–

01Maricopa County, AZAZ4,689,558+744,968−22%

02Harris County, TXTX5,045,026+691,881+19%

03Riverside County, CACA2,544,916+644,254+72%

04Clark County, NVNV2,407,226+575,504−9%

05Tarrant County, TXTX2,248,466+362,815+31%

06San Bernardino County, CACA2,224,091+325,776+12%

07Bexar County, TXTX2,160,088+321,842+55%

08Los Angeles County, CACA9,694,934+299,267−54%

09Collin County, TXTX1,297,179+290,666+28%

10San Diego County, CACA3,282,248+281,480−11%

11Wake County, NCNC1,257,235+273,147+34%

12Orange County, FLFL1,528,002+249,612+14%

13Miami-Dade County, FLFL2,802,029+243,073–

14Fort Bend County, TXTX975,191+230,923+79%

15Hillsborough County, FLFL1,574,115+230,278+40%

16Denton County, TXTX1,069,346+229,638+44%

17Mecklenburg County, NCNC1,233,383+224,174+22%

18Gwinnett County, GAGA1,018,099+216,873−8%

19Travis County, TXTX1,389,670+211,986−10%

20Hidalgo County, TXTX921,549+205,306+10%

21Pinal County, AZAZ539,380+196,043+209%

22Sacramento County, CACA1,618,460+195,289+7%

23King County, WAWA2,344,939+194,215−15%

24Palm Beach County, FLFL1,575,726+188,950−29%

25Kern County, CACA927,068+177,986+51%

26Lee County, FLFL875,607+177,866+68%

27Will County, ILIL712,253+175,294+21%

28Williamson County, TXTX752,827+172,712+56%

29Orange County, CACA3,149,507+163,943−62%

30Montgomery County, TXTX781,194+161,978+45%

31Dallas County, TXTX2,661,397+149,240−59%

32Utah County, UTUT759,859+148,028+41%

33Loudoun County, VAVA449,749+142,712+71%

34Pima County, AZAZ1,074,685+136,517−23%

35Salt Lake County, UTUT1,220,916+131,268−24%

36Fresno County, CACA1,035,456+131,043−1%

37Broward County, FLFL2,013,317+125,048−66%

38San Joaquin County, CACA823,815+121,708+47%

39Prince William County, VAVA502,966+121,189+86%

40El Paso County, TXTX877,858+121,025+38%

41Pasco County, FLFL674,516+119,932+88%

42Polk County, FLFL874,790+118,171+50%

43Fairfax County, VAVA1,167,873+111,977−26%

44Kane County, ILIL525,757+111,150+28%

45Douglas County, COCO399,396+109,699−5%

46Snohomish County, WAWA870,656+107,311−24%

47Bernalillo County, NMNM667,601+105,886+39%

48El Paso County, COCO757,040+105,334−12%

49Fulton County, GAGA1,098,791+104,575−37%

50Contra Costa County, CACA1,170,070+100,209−31%

51Placer County, CACA442,081+100,033+32%

52Santa Clara County, CACA1,914,391+99,057−46%

53Montgomery County, MDMD1,074,582+98,436−15%

54Osceola County, FLFL481,718+96,192+49%

55Franklin County, OHOH1,361,536+94,436−12%

56Pierce County, WAWA946,288+94,405−18%

57Johnson County, KSKS636,906+93,093−3%

58Hamilton County, ININ387,036+91,829+24%

59Ada County, IDID546,141+91,461−4%

60Lake County, FLFL456,068+86,524+48%

61Duval County, FLFL1,062,963+85,384−19%

62St. Lucie County, FLFL402,449+85,094+100%

63Henry County, GAGA264,922+84,581+40%

64Washington County, OROR611,708+84,368−37%

65Arapahoe County, COCO673,820+84,036−13%

66Washoe County, NVNV509,386+81,921−3%

67Rutherford County, TNTN386,352+80,581+27%

68Cobb County, GAGA793,345+80,327−50%

69Clark County, WAWA532,119+80,125−25%

70Adams County, COCO554,668+77,746−21%

71Union County, NCNC267,674+77,615+97%

72Forsyth County, GAGA282,805+77,104+42%

73Honolulu County, HIHI988,703+77,051+93%

74St. Charles County, MOMO426,499+76,602+8%

75Multnomah County, OROR795,391+74,848−2%

76Tulare County, CACA485,146+74,158+32%

77Suffolk County, NYNY1,546,090+73,981−24%

78Horry County, SCSC427,551+72,662+38%

79Cherokee County, GAGA299,273+72,443+40%

80Marion County, FLFL442,660+72,382+13%

81Bell County, TXTX402,248+72,261+54%

82Weld County, COCO378,426+71,889+46%

83Greenville County, SCSC583,125+71,609+20%

84Brazoria County, TXTX419,080+71,399+43%

85Cameron County, TXTX433,946+70,993−5%

86Collier County, FLFL417,131+70,143−29%

87Ventura County, CACA830,851+70,121−17%

88Benton County, ARAR332,554+67,933+22%

89Davis County, UTUT381,227+67,485+32%

90Stanislaus County, CACA557,719+67,456−12%

91Guilford County, NCNC562,234+67,358−9%

92Brevard County, FLFL663,982+67,146−13%

93St. Johns County, FLFL346,328+66,904+70%

94Alameda County, CACA1,636,630+66,530−60%

95Ocean County, NJNJ673,746+65,651−16%

96Chester County, PAPA557,116+65,385+14%

97Delaware County, OHOH242,032+64,225+49%

98Richland County, SCSC434,956+63,827+83%

99Prince George's County, MDMD970,374+61,905−14%

100Dane County, WIWI590,375+61,547+4%

101York County, SCSC306,887+61,459+86%

102Paulding County, GAGA190,996+60,646+51%

103Kendall County, ILIL145,470+60,192+298%

104Middlesex County, NJNJ883,335+59,696−24%

105Hays County, TXTX304,390+59,518+86%

106Lake County, ILIL719,339+59,106−54%

107Manatee County, FLFL468,200+58,831+12%

108Oklahoma County, OKOK822,125+58,185−4%

109Madison County, ALAL433,516+58,111+54%

110Seminole County, FLFL491,884+57,522−26%

111Canyon County, IDID275,123+57,482+39%

112Webb County, TXTX281,224+57,187−4%

113Davidson County, TNTN745,904+56,790−4%

114Williamson County, TNTN272,061+56,544+24%

115Chesterfield County, VAVA397,148+56,333+11%

116Polk County, IAIA516,546+56,039+18%

117Warren County, OHOH257,181+54,310+22%

118DeSoto County, MSMS197,918+54,053+38%

119Douglas County, NENE606,460+53,525+14%

120Sarasota County, FLFL479,958+53,491+11%

121Spokane County, WAWA558,344+53,282−6%

122York County, PAPA473,197+53,221+26%

123Macomb County, MIMI886,221+52,829−25%

124Bronx County, NYNY1,406,332+52,458−59%

125Shelby County, ALAL238,552+51,792+18%

126Volusia County, FLFL606,573+51,250−29%

127Baltimore County, MDMD847,650+50,737−18%

128Knox County, TNTN511,453+50,194+8%

129Clay County, FLFL239,593+50,051+44%

130Montgomery County, PAPA877,643+49,777−31%

131Lancaster County, PAPA563,159+48,787+2%

132McHenry County, ILIL317,751+48,683−37%

133New York County, NYNY1,664,862+48,678−2%

134Larimer County, COCO377,292+48,136−26%

135Anne Arundel County, MDMD603,380+48,000−23%

136Washington County, UTUT213,670+47,761+14%

137Cleveland County, OKOK303,973+47,739+41%

138Worcester County, MAMA888,502+47,589+15%

139Jefferson County, KYKY795,222+47,492+66%

140Cabarrus County, NCNC249,725+46,948+46%

141Johnston County, NCNC256,448+46,913+15%

142Lexington County, SCSC317,588+46,377−4%

143Flagler County, FLFL140,360+45,864+117%

144Denver County, COCO740,613+45,522−48%

145Sedgwick County, KSKS538,433+45,496−8%

146Washington County, ARAR271,213+45,350+2%

147Merced County, CACA297,260+45,239+41%

148Mohave County, AZAZ228,102+45,154−27%

149Thurston County, WAWA304,261+44,909−3%

150Henrico County, VAVA342,775+44,635+0%

151Forsyth County, NCNC401,718+44,603+11%

152Durham County, NCNC347,240+44,273+7%

153Yavapai County, AZAZ252,552+43,516−27%

154Marion County, ININ992,196+42,939−32%

155Dakota County, MNMN457,710+42,648−47%

156Guadalupe County, TXTX201,111+42,510+76%

157St. Tammany Parish, LALA279,108+42,472−9%

158Brazos County, TXTX249,088+42,436+39%

159Deschutes County, OROR213,072+42,366+5%

160New Hanover County, NCNC245,959+42,360+6%

161Hernando County, FLFL221,701+41,976+41%

162Baldwin County, ALAL267,761+41,850−1%

163Sandoval County, NMNM159,565+41,653+57%

164Hendricks County, ININ193,510+41,355+46%

165Beaufort County, SCSC204,433+41,296+20%

166Galveston County, TXTX372,207+41,151+26%

167Sussex County, DEDE277,140+40,507−7%

168Scott County, MNMN159,017+40,430+28%

169Hall County, GAGA226,568+40,407−8%

170Charleston County, SCSC436,200+40,240+170%

171Douglas County, GAGA154,293+40,229+91%

172Dorchester County, SCSC178,397+40,142+201%

173Tulsa County, OKOK698,782+40,104−33%

174Sumter County, FLFL157,772+40,075+84%

175Kings County, NYNY2,653,963+39,374−76%

176Howard County, MDMD339,183+39,243−35%

177Ellis County, TXTX240,867+38,250+46%

178New Castle County, DEDE588,026+38,214−34%

179Frederick County, MDMD302,883+38,108−15%

180Coweta County, GAGA160,240+38,102+8%

181Newton County, GAGA125,583+37,957+88%

182Clay County, MOMO265,032+37,933+24%

183Berks County, PAPA440,072+37,804+2%

184Middlesex County, MAMA1,669,979+37,689−44%

185Clackamas County, OROR426,280+37,601−37%

186Montgomery County, TNTN249,935+37,563+10%

187Lehigh County, PAPA384,383+37,407+78%

188Washington County, MNMN286,895+37,006−33%

189Iredell County, NCNC211,798+36,777+24%

190Stafford County, VAVA170,803+36,515+17%

191Hawaii County, HIHI210,043+36,402+28%

192Sarpy County, NENE208,303+36,245+81%

193Hennepin County, MNMN1,284,784+36,225−57%

194Livingston Parish, LALA155,036+36,212+70%

195Lubbock County, TXTX328,906+36,203+81%

196Leon County, FLFL299,048+36,035−23%

197Yuma County, AZAZ224,449+35,725−33%

198Kent County, DEDE194,786+35,613+127%

199Butler County, OHOH400,128+35,323−15%

200Fayette County, KYKY329,751+35,291+0%

201Rockwall County, TXTX140,738+35,257+102%

202Berkeley County, SCSC274,666+35,192+154%

203Lancaster County, NENE334,049+35,116−4%

204Smith County, TXTX252,549+35,008+50%

205Greene County, MOMO309,286+34,783+7%

206Columbia County, GAGA169,189+34,765+49%

207Wright County, MNMN157,559+34,714+63%

208Weber County, UTUT278,174+34,703−9%

209Doña Ana County, NMNM229,091+34,551−12%

210Pitt County, NCNC182,936+34,350+33%

211Whatcom County, WAWA236,392+34,326−12%

212Brunswick County, NCNC174,702+34,288+55%

213Santa Rosa County, FLFL211,115+33,629−7%

214Gloucester County, NJNJ312,638+33,615+37%

215Chatham County, GAGA311,855+33,080+119%

216Boone County, KYKY145,316+32,820+16%

217Anoka County, MNMN381,605+32,760−40%

218Benton County, WAWA221,722+32,702+9%

219Suffolk County, MAMA791,891+32,216+24%

220Yolo County, CACA224,410+32,189+17%

221Imperial County, CACA181,411+32,167−3%

222Kaufman County, TXTX209,235+32,037+68%

223Spotsylvania County, VAVA155,388+32,002−3%

224Buncombe County, NCNC277,417+31,988+2%

225Anchorage, AKAK287,155+31,543−7%

226Orange County, NYNY417,669+31,446−7%

227Monroe County, PAPA167,179+31,155−28%

228Lafayette Parish, LALA257,949+31,075+21%

229Northampton County, PAPA324,411+30,669+54%

230Ascension Parish, LALA135,105+30,588+66%

231Spartanburg County, SCSC380,857+30,516+13%

232Marion County, OROR355,777+30,501−46%

233Mesa County, COCO162,845+30,468+32%

234Comal County, TXTX209,166+30,451+16%

235Sumner County, TNTN215,538+30,196+11%

236Shelby County, TNTN910,226+30,172−58%

237Kootenai County, IDID191,864+29,809−23%

238Tuscaloosa County, ALAL241,368+29,781+107%

239Matanuska-Susitna, AKAK118,666+29,673+51%

240District of Columbia, DCDC693,645+29,664−185%

241Alachua County, FLFL290,028+29,381−19%

242Houston County, GAGA178,214+29,135+35%

243Waukesha County, WIWI417,210+29,124−48%

244Franklin County, WAWA102,612+28,816+143%

245Lane County, OROR381,584+28,756−28%

246Hamilton County, TNTN390,833+28,567+28%

247San Francisco County, CACA826,079+28,502−46%

248Parker County, TXTX184,767+28,432+20%

249Kent County, MIMI675,232+28,287−62%

250Berkeley County, WVWV139,522+28,264+70%

251Canadian County, OKOK187,189+27,844+110%

252Madera County, CACA167,927+27,756−21%

253Bucks County, PAPA647,828+27,614−51%

254Onslow County, NCNC217,175+27,417+5203%

255East Baton Rouge Parish, LALA456,180+27,319−17%

256Faulkner County, ARAR133,979+27,223+5%

257Boone County, MOMO191,746+27,188+18%

258Maui County, HIHI160,592+26,740−4%

259Cass County, NDND201,794+26,640+31%

260Nueces County, TXTX352,992+26,578+18%

261Rankin County, MSMS162,181+26,290−7%

262Harford County, MDMD266,446+26,236−28%

263DeKalb County, GAGA774,394+26,028−78%

264Charles County, MDMD176,593+26,005+34%

265Somerset County, NJNJ356,486+25,954−55%

266Westchester County, NYNY1,015,743+25,654−47%

267Ottawa County, MIMI308,459+25,487−50%

268Dallas County, IAIA118,457+25,385+131%

269Burlington County, NJNJ481,439+25,340−11%

270Hudson County, NJNJ735,033+25,291−55%

271Sonoma County, CACA486,444+25,264−64%

272Wilson County, TNTN175,033+25,184+19%

273Lee County, ALAL189,881+25,155−10%

274Indian River County, FLFL172,799+25,081+10%

275Richmond County, NYNY501,290+25,002−61%

276Rockland County, NYNY357,397+24,934+17%

277El Dorado County, CACA192,323+24,759−18%

278Santa Barbara County, CACA442,065+24,548−17%

279Johnson County, ININ174,262+24,445−10%

280Bartow County, GAGA120,800+24,138+20%

281Johnson County, TXTX218,048+24,123−19%

282Sherburne County, MNMN104,194+24,082+7%

283Livingston County, MIMI197,315+24,016−42%

284Tippecanoe County, ININ190,456+23,825+30%

285Harnett County, NCNC150,137+23,653+2%

286Saline County, ARAR133,288+23,589+22%

287Kings County, CACA154,327+23,521−16%

288Allen County, ININ402,329+23,480−24%

289Fairfield County, OHOH169,752+23,397+21%

290Carroll County, GAGA131,036+23,259+47%

291Barrow County, GAGA99,773+23,223+41%

292Citrus County, FLFL171,666+23,151−6%

293Christian County, MOMO96,725+23,137+7%

294Walton County, GAGA112,696+23,081+4%

295Chesapeake, VAVA255,332+23,025−51%

296San Luis Obispo County, CACA282,367+22,956−22%

297Clayton County, GAGA297,471+22,907−58%

298Plymouth County, MAMA546,829+22,097−41%

299Morris County, NJNJ524,251+22,064−55%

300Atlantic County, NJNJ278,657+21,997−22%

301Jackson County, OROR221,795+21,937−37%

302Washtenaw County, MIMI370,214+21,896−45%

303Cumberland County, PAPA277,270+21,732+18%

304Bonneville County, IDID135,771+21,712+110%

305Gallatin County, MTMT128,740+21,682+25%

306Champaign County, ILIL209,972+21,412+222%

307McLennan County, TXTX272,020+21,389−12%

308Anderson County, SCSC219,930+21,386+4%

309Pulaski County, ARAR404,611+21,274+80%

310Warren County, KYKY149,375+21,270+34%

311Cache County, UTUT145,000+21,265+0%

312Medina County, OHOH185,025+21,237−26%

313Brown County, WIWI275,803+21,229−34%

314St. Croix County, WIWI98,276+21,190+64%

315Minnehaha County, SDSD212,691+21,187−13%

316Licking County, OHOH185,564+21,001+22%

317Bergen County, NJNJ977,026+20,998−64%

318Suffolk, VAVA104,699+20,908+81%

319Midland County, TXTX187,855+20,863+122%

320Carver County, MNMN114,379+20,837−7%

321Lincoln County, SDSD77,145+20,697+138%

322Yakima County, WAWA259,185+20,650−39%

323Bay County, FLFL204,479+20,635−3%

324Jefferson County, MOMO233,132+20,634−23%

325Norfolk County, MAMA739,749+20,542−40%

326Madison County, MSMS116,298+20,529−2%

327Tangipahoa Parish, LALA141,346+20,509+38%

328Alamance County, NCNC186,177+20,331−10%

329Franklin County, PAPA160,652+20,305+147%

330Olmsted County, MNMN166,731+19,971+12%

331Hillsborough County, NHNH433,415+19,880−56%

332Johnson County, IAIA160,044+19,876+34%

333Essex County, MAMA826,653+19,740−63%

334Albemarle County, VAVA118,356+19,734+76%

335Martin County, FLFL166,272+19,587−24%

336Linn County, IAIA232,028+19,525−15%

337Clermont County, OHOH216,977+19,386−30%

338Jackson County, MOMO732,994+19,278−11%

339Kitsap County, WAWA283,374+19,164−55%

340McLean County, ILIL171,419+19,139−10%

341Frederick County, VAVA99,955+19,096+42%

342Whitfield County, GAGA106,212+19,074+72%

343Saratoga County, NYNY241,343+18,972−2%

344St. Mary's County, MDMD116,692+18,940+85%

345James City County, VAVA83,326+18,907+43%

346Jackson County, GAGA99,265+18,896+63%

347St. Clair County, ALAL98,206+18,851+28%

348Solano County, CACA455,376+18,802−65%

349Sevier County, TNTN101,342+18,719−7%

350Bossier Parish, LALA131,867+18,669+53%

351Yellowstone County, MTMT172,692+18,620+17%

352Charlotte County, FLFL217,212+18,351−40%

353Centre County, PAPA157,393+18,232+52%

354Arlington County, VAVA243,931+18,174−2%

355Coconino County, AZAZ144,368+18,101−8%

356Rockingham County, NHNH324,077+17,864−43%

357Pueblo County, COCO169,277+17,591−5%

358Henderson County, NCNC122,375+17,567−12%

359Aiken County, SCSC181,515+17,547−19%

360Porter County, ININ176,049+17,545−2%

361Tooele County, UTUT87,461+17,483+24%

362Lyon County, NVNV65,088+17,479+21%

363Stearns County, MNMN164,110+17,476+22%

364Monroe County, ININ143,345+17,411+50%

365Cass County, MOMO115,859+17,386−5%

366Dutchess County, NYNY300,708+17,338−16%

367Blount County, TNTN143,820+17,187−13%

368Lowndes County, GAGA122,867+17,118+6%

369Limestone County, ALAL122,928+17,106+48%

370Kenosha County, WIWI168,448+16,849−21%

371Winnebago County, ILIL283,674+16,848−34%

372Butte County, CACA209,211+16,829−20%

373Lorain County, OHOH323,219+16,692+23%

374Lamar County, MSMS67,403+16,588+92%

375Cumberland County, NCNC338,473+16,468−42%

376Flathead County, MTMT115,429+16,457+8%

377Bastrop County, TXTX118,908+16,438−16%

378Randall County, TXTX152,351+16,413+12%

379Dauphin County, PAPA293,351+16,302+17%

380Rogers County, OKOK102,197+16,264+5%

381San Juan County, NMNM120,340+16,243−27%

382Carroll County, MDMD176,677+16,237−41%

383DeKalb County, ILIL101,835+16,191+47%

384Cumberland County, MEME317,222+16,062−29%

385Ector County, TXTX173,801+16,007+631%

386Sutter County, CACA98,787+15,807+9%

387Washington County, TNTN141,199+15,781+6%

388Mercer County, NJNJ399,289+15,752−37%

389Outagamie County, WIWI195,894+15,724−23%

390Gaston County, NCNC246,558+15,721+3%

391Nassau County, FLFL106,879+15,651+14%

392Davidson County, NCNC180,182+15,632−24%

393Wagoner County, OKOK93,263+15,594+62%

394Orange County, NCNC152,498+15,574−36%

395Platte County, MOMO114,400+15,541−2%

396Lonoke County, ARAR76,664+15,528+15%

397Washington County, MDMD157,731+15,507+47%

398Fayette County, GAGA125,156+15,304−47%

399Lancaster County, SCSC114,296+15,301+124%

400Clarke County, GAGA129,921+15,225+10%

401Cecil County, MDMD107,131+15,157+4%

402Rockdale County, GAGA98,416+15,104−6%

403Monmouth County, NJNJ651,035+15,079−76%

404Santa Fe County, NMNM156,907+14,878−51%

405Elkhart County, ININ208,774+14,768−44%

406Fairbanks North Star, AKAK93,972+14,741+188%

407Effingham County, GAGA74,397+14,715+24%

408Hancock County, ININ90,969+14,611+48%

409Lincoln County, NCNC98,654+14,485+8%

410Walton County, FLFL93,288+14,442+12%

411Grant County, WAWA105,727+14,422−28%

412Washington County, WIWI139,238+14,394−35%

413Monongalia County, WVWV107,991+14,323+125%

414Craighead County, ARAR116,957+14,295+8%

415Bulloch County, GAGA86,949+14,234+11%

416Yamhill County, OROR110,024+14,201−27%

417Chatham County, NCNC85,111+14,176+34%

418Calvert County, MDMD94,484+14,174−39%

419Oldham County, KYKY70,986+14,138+9%

420Scott County, KYKY62,262+14,112+53%

421Wicomico County, MDMD106,899+14,089+37%

422St. Clair County, ILIL250,708+13,974−306%

423Shasta County, CACA181,648+13,967−14%

424Union County, NJNJ601,863+13,958−51%

425Skagit County, WAWA132,975+13,922−41%

426Clark County, ININ130,451+13,760+58%

427Greene County, OHOH174,322+13,687+23%

428Lincoln County, MOMO66,676+13,622+36%

429Bristol County, MAMA593,640+13,607−52%

430Linn County, OROR132,843+13,603+15%

431Cochise County, AZAZ126,332+13,591−32%

432Hanover County, VAVA116,423+13,543−41%

433Missoula County, MTMT123,513+13,497−21%

434Moore County, NCNC110,619+13,478−14%

435Elmore County, ALAL91,577+13,429−19%

436Franklin County, NCNC82,037+13,359+23%

437Hoke County, NCNC56,939+13,306+23%

438Monterey County, CACA433,729+13,295−71%

439Lebanon County, PAPA146,380+13,241+101%

440Mobile County, ALAL411,658+13,149−38%

441Bullitt County, KYKY86,454+13,083−4%

442Polk County, OROR90,037+13,023+1%

443Twin Falls County, IDID97,539+12,946+21%

444Chisago County, MNMN59,142+12,786+21%

445DuPage County, ILIL934,298+12,763−90%

446Houston County, ALAL110,318+12,760+71%

447Virginia Beach, VAVA453,737+12,737−60%

448Jasper County, MOMO127,428+12,718−11%

449Catawba County, NCNC170,172+12,673−46%

450Garfield County, COCO63,474+12,598−9%

451Grundy County, ILIL54,052+12,528+141%

452Campbell County, WYWY48,145+12,435+187%

453Culpeper County, VAVA57,666+12,427+92%

454Iron County, UTUT67,141+12,384−5%

455Pennington County, SDSD116,792+12,383+71%

456Boone County, ILIL53,568+12,379+13%

457Napa County, CACA132,949+12,205−10%

458Passaic County, NJNJ531,624+12,177−66%

459Craven County, NCNC105,025+12,069+23%

460Glynn County, GAGA87,599+12,058+138%

461Madison County, KYKY101,696+12,044−10%

462Taney County, MOMO57,001+11,972−15%

463Yuba County, CACA88,691+11,936+499%

464Burleigh County, NDND103,251+11,892+28%

465Robertson County, TNTN80,175+11,850−8%

466Kalamazoo County, MIMI263,795+11,728−23%

467Alexandria, VAVA160,662+11,683−32%

468Nye County, NVNV57,336+11,461−22%

469Maury County, TNTN118,131+11,458−22%

470Lake County, ININ504,612+11,441+28%

471Highlands County, FLFL111,122+11,420−40%

472Granville County, NCNC61,421+11,418+12%

473Union County, OHOH73,446+11,391+27%

474Hardin County, KYKY113,482+11,369+130%

475Jefferson County, WVWV63,102+11,308+81%

476Randolph County, NCNC149,516+11,298−53%

477Mason County, WAWA71,165+11,294+2%

478San Mateo County, CACA743,568+11,290−80%

479Pender County, NCNC72,111+11,135−9%

480Florence County, SCSC138,504+11,124−3%

481Pulaski County, MOMO54,442+11,109−7923%

482Gordon County, GAGA61,701+11,082+23%

483Pike County, PAPA62,808+11,067−40%

484Columbia County, FLFL74,094+11,018−21%

485Bradley County, TNTN115,465+10,998−23%

486Strafford County, NHNH135,043+10,910+36%

487Autauga County, ALAL61,920+10,900+15%

488Douglas County, KSKS120,920+10,864−40%

489Robeson County, NCNC119,941+10,829−40%

490Marshall County, ALAL103,537+10,788−5%

491Montgomery County, VAVA98,434+10,763+11%

492Sebastian County, ARAR130,641+10,673−31%

493Catoosa County, GAGA69,628+10,660−1%

494Clinton County, MIMI80,432+10,629+55%

495Waller County, TXTX69,858+10,542+14%

496Eagle County, COCO54,291+10,538−47%

497Boone County, ININ80,689+10,533+32%

498Wilson County, TXTX56,139+10,510+8%

499Cumberland County, NJNJ157,148+10,460+25%

500Valencia County, NMNM82,013+10,417−50%

SHOWING 1–500 OF 3,125

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Download CSV (full list, 3,125 rows)

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

Frequently asked

Which county has the highest population change?

Maricopa County, Arizona ranks #1 with +744,968 (2010 Decennial Census).

What are the top 5 counties by population change?

Maricopa County, Arizona, Harris County, Texas, Riverside County, California, Clark County, Nevada, Tarrant County, Texas.

How many counties are in this ranking?

3,125 counties qualify after filtering for population minimums and data availability. The ranking covers 2010 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, 2010 Decennial Census.