RANKING · 2020 CENSUS · 500 SHOWN OF 3,135

Youngest by median age, US counties · 2020

US counties with the youngest median age (2023 ACS). Lexington, Virginia leads at 22.7. 3,135 counties qualify in total. Virginia carries 5 of the top 25 entries.

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All statesAll rankings

SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 2000

01Lexington, VAVA7,76922.7−3%

02Madison County, IDID55,17223.1+12%

03Harrisonburg, VAVA50,83923.5+4%

04Radford, VAVA17,24323.5+3%

05Kusilvak Census Area, AKAK7,93223.7–

06Chattahoochee County, GAGA8,46523.8+3%

07Williamsburg, VAVA15,86124.0+6%

08Clay County, SDSD15,03125.1+1%

09Todd County, SDSD8,86325.1+16%

10Riley County, KSKS72,59825.3+6%

11Whitman County, WAWA48,51225.6+4%

12Oglala Lakota County, SDSD13,33825.7–

13Buffalo County, SDSD1,80225.8+10%

14Utah County, UTUT759,85925.9+11%

15Brazos County, TXTX249,08826.0+10%

16Cache County, UTUT145,00026.3+10%

17Story County, IAIA101,29126.9+2%

18Oktibbeha County, MSMS51,89627.3+10%

19Pulaski County, MOMO54,44227.3−4%

20Montgomery County, VAVA98,43427.5+6%

21Bethel Census Area, AKAK18,39127.6+9%

22Northwest Arctic, AKAK7,09528.0+17%

23Gaines County, TXTX23,95628.2−5%

24Onslow County, NCNC217,17528.3+13%

25Clarke County, GAGA129,92128.3+11%

26Geary County, KSKS36,33828.7−1%

27Ziebach County, SDSD2,38928.9+21%

28Iron County, UTUT67,14128.9+19%

29Bulloch County, GAGA86,94928.9+11%

30Liberty County, GAGA70,31329.0+16%

31Albany County, WYWY38,55829.1+9%

32Payne County, OKOK83,88929.2+6%

33Watauga County, NCNC54,78629.4−2%

34Athens County, OHOH63,19729.5+15%

35Charlottesville, VAVA44,38829.5+15%

36Tippecanoe County, ININ190,45629.6+9%

37Thurston County, NENE6,75229.7−0%

38Brookings County, SDSD37,63529.7+12%

39Wayne County, NENE10,02029.7+6%

40Adams County, WAWA21,48829.7+0%

41Nome Census Area, AKAK9,83029.8+8%

42Lincoln Parish, LALA48,36029.9+13%

43Sioux County, NDND3,66729.9+25%

44Christian County, KYKY70,11530.0+8%

45Lafayette County, MSMS59,59730.2+12%

46Adair County, MOMO25,68430.5+9%

47Corson County, SDSD3,78130.5+8%

48Webb County, TXTX281,22430.6+15%

49Juab County, UTUT13,56730.7+16%

50Champaign County, ILIL209,97230.8+8%

51LaGrange County, ININ41,30530.8+4%

52Seward County, KSKS21,07330.8+6%

53McKenzie County, NDND15,19230.9−22%

54Franklin County, WAWA102,61230.9+10%

55Latah County, IDID41,84231.0+11%

56Monroe County, ININ143,34531.0+12%

57Tompkins County, NYNY104,04731.0+8%

58Lynchburg, VAVA81,34731.0−12%

59Holmes County, OHOH44,97031.1+11%

60Hidalgo County, TXTX921,54931.1+14%

61Monongalia County, WVWV107,99131.1+2%

62Johnson County, IAIA160,04431.2+10%

63Dillingham Census Area, AKAK4,48331.3+8%

64Montgomery County, TNTN249,93531.3+4%

65Ford County, KSKS33,99331.3+5%

66Lee County, ALAL189,88131.4+14%

67Grand Forks County, NDND74,50131.4+8%

68Tooele County, UTUT87,46131.4+16%

69Davis County, UTUT381,22731.4+17%

70Big Horn County, MTMT12,75231.5+6%

71Centre County, PAPA157,39331.5+10%

72Erath County, TXTX43,91131.5+0%

73Uintah County, UTUT38,27831.5+9%

74Williams County, NDND41,76731.6−21%

75Coryell County, TXTX85,59231.6+14%

76Fredericksburg, VAVA30,39331.6+4%

77Norfolk, VAVA231,01331.6+7%

78Isabella County, MIMI64,69131.7+26%

79Long County, GAGA21,55731.8+20%

80Finney County, KSKS37,50531.8+13%

81Roosevelt County, NMNM18,61531.8+8%

82Boone County, MOMO191,74631.9+8%

83Moore County, TXTX21,89131.9+5%

84Starr County, TXTX66,31931.9+22%

85Washington County, ARAR271,21332.0+4%

86Merced County, CACA297,26032.0+10%

87Lake and Peninsula, AKAK1,35732.1+10%

88Johnson County, MOMO56,67032.1+13%

89Jefferson County, IDID35,29732.1+11%

90Kleberg County, TXTX30,31532.2+10%

91Douglas County, KSKS120,92032.2+21%

92Alachua County, FLFL290,02832.2+11%

93Suffolk County, MAMA791,89132.3+2%

94Blue Earth County, MNMN70,63432.3+8%

95Lea County, NMNM74,74932.3−2%

96Bennett County, SDSD3,30732.3+11%

97Dallam County, TXTX7,50832.3+3%

98Hays County, TXTX304,39032.3+14%

99Tulare County, CACA485,14632.3+11%

100Texas County, OKOK20,32232.4+7%

101Dewey County, SDSD5,41932.4+22%

102Richmond, VAVA237,25732.4−4%

103Coconino County, AZAZ144,36832.5+10%

104Andrews County, TXTX18,91432.5−5%

105Fairbanks North Star, AKAK93,97232.6+11%

106Bell County, TXTX402,24832.7+12%

107Rowan County, KYKY24,47632.7+10%

108Elmore County, IDID29,46532.7+12%

109Kern County, CACA927,06832.8+7%

110Vernon Parish, LALA45,09132.8+16%

111Glacier County, MTMT13,46332.8+7%

112Curry County, NMNM46,65532.8+6%

113Ward County, NDND68,23332.8+1%

114Ector County, TXTX173,80132.8+2%

115Zapata County, TXTX13,75332.8+7%

116Lowndes County, GAGA122,86732.8+9%

117Tuscaloosa County, ALAL241,36832.9+3%

118Kings County, CACA154,32732.9+9%

119Weber County, UTUT278,17432.9+12%

120Salt Lake County, UTUT1,220,91632.9+14%

121Benson County, NDND5,75933.0+5%

122Deaf Smith County, TXTX18,62633.0+8%

123Lubbock County, TXTX328,90633.0+8%

124Frio County, TXTX18,82333.0+7%

125Waller County, TXTX69,85833.0+10%

126Box Elder County, UTUT65,32033.0+18%

127Custer County, OKOK28,17533.1+1%

128Leon County, FLFL299,04833.1+12%

129Bonneville County, IDID135,77133.1+4%

130Cassia County, IDID26,39733.1+6%

131Roosevelt County, MTMT10,24233.2+3%

132Benton County, OROR97,72833.2+7%

133Midland County, TXTX187,85533.2−3%

134Manassas Park, VAVA16,56033.2+10%

135Fresno County, CACA1,035,45633.3+11%

136Yolo County, CACA224,41033.3+13%

137Duchesne County, UTUT20,85633.3+18%

138North Slope, AKAK10,58233.4+24%

139Cass County, NDND201,79433.4+7%

140Ingham County, MIMI289,70933.4+10%

141Forrest County, MSMS79,03433.4+12%

142Nodaway County, MOMO20,17433.4+11%

143Gallatin County, MTMT128,74033.4+9%

144Dakota County, NENE21,68733.4+6%

145Cumberland County, NCNC338,47333.4+13%

146Rolette County, NDND11,68833.4+16%

147Nacogdoches County, TXTX66,03533.4+12%

148Jerome County, IDID26,36233.4+2%

149Sioux County, IAIA36,77433.4+2%

150Jackson County, SDSD2,66633.5+9%

151Craighead County, ARAR116,95733.5+2%

152Houghton County, MIMI37,84233.6−1%

153Hoke County, NCNC56,93933.6+12%

154Bailey County, TXTX6,96333.6−4%

155Morgan County, UTUT13,38333.6+18%

156Warren County, KYKY149,37533.7+4%

157Maverick County, TXTX58,82333.7+21%

158Sanpete County, UTUT31,45333.7+33%

159Comanche County, OKOK122,15833.8+12%

160Graham County, AZAZ40,15733.8+9%

161Davidson County, TNTN745,90433.9−1%

162Travis County, TXTX1,389,67033.9+12%

163Clay County, MNMN67,73433.9+5%

164Jefferson County, NYNY111,54033.9+4%

165Ochiltree County, TXTX9,28433.9+1%

166District of Columbia, DCDC693,64533.9−2%

167Franklin County, IDID15,88933.9+22%

168Elko County, NVNV54,81534.0+9%

169Cameron County, TXTX433,94634.0+17%

170Parmer County, TXTX9,67834.0+6%

171Arlington County, VAVA243,93134.0+0%

172Adams County, ININ36,65034.0+3%

173Stark County, NDND34,01334.1−8%

174Denver County, COCO740,61334.1+3%

175Ellis County, KSKS29,07534.1+4%

176Grant County, KSKS7,02834.1+9%

177Greenlee County, AZAZ9,31234.2+2%

178Yakima County, WAWA259,18534.2+10%

179Claiborne County, MSMS8,05834.2+34%

180El Paso County, TXTX877,85834.2+14%

181Prince George County, VAVA43,93634.2+7%

182Dallas County, TXTX2,661,39734.2+10%

183Franklin County, OHOH1,361,53634.2+5%

184Grant County, WAWA105,72734.2+10%

185Harris County, TXTX5,045,02634.3+10%

186Yuba County, CACA88,69134.3+9%

187Clayton County, GAGA297,47134.3+14%

188DeKalb County, ILIL101,83534.3+21%

189Haskell County, KSKS3,59934.3+11%

190McKinley County, NMNM68,11934.4+28%

191Reagan County, TXTX3,16634.4+6%

192Rutherford County, TNTN386,35234.4+10%

193Adams County, COCO554,66834.4+10%

194Beaver County, UTUT7,30134.4+12%

195Newport News, VAVA183,23034.4+7%

196Faulkner County, ARAR133,97934.5+11%

197Washtenaw County, MIMI370,21434.5+10%

198Blaine County, MTMT6,86034.5+0%

199Colfax County, NENE10,93434.5−1%

200Loving County, TXTX5234.5−25%

201Canyon County, IDID275,12334.5+13%

202Weld County, COCO378,42634.5+12%

203Hamilton County, KSKS2,50034.5−8%

204Wyandotte County, KSKS170,59734.5+6%

205Val Verde County, TXTX47,83534.5+12%

206Manassas, VAVA44,33234.5+10%

207Menominee County, WIWI4,19934.5+25%

208Imperial County, CACA181,41134.6+12%

209Buffalo County, NENE51,17234.6+15%

210Taylor County, TXTX150,07734.6+7%

211Camden County, GAGA60,14334.6+23%

212San Juan County, UTUT14,54234.6+36%

213Crawford County, KSKS39,00834.7+3%

214Stevens County, MNMN9,74734.7+2%

215Lancaster County, NENE334,04934.7+8%

216Marion County, ININ992,19634.7+3%

217Bannock County, IDID91,59134.7+16%

218Pike County, ALAL33,68834.8+7%

219Lamar County, MSMS67,40334.8+7%

220Mellette County, SDSD2,13734.8+8%

221McLennan County, TXTX272,02034.8+9%

222Campbell County, WYWY48,14534.8+8%

223Hudson County, NJNJ735,03334.8+4%

224Cleveland County, OKOK303,97334.8+8%

225Bingham County, IDID51,15334.8+17%

226Philadelphia County, PAPA1,574,28134.8+2%

227Nobles County, MNMN22,33834.9−7%

228Douglas County, NENE606,46034.9+4%

229Bexar County, TXTX2,160,08834.9+9%

230Crane County, TXTX4,55434.9+2%

231San Bernardino County, CACA2,224,09134.9+15%

232Jackson County, ILIL52,50134.9+27%

233Madera County, CACA167,92735.0+7%

234Monterey County, CACA433,72935.0+10%

235Rockland County, NYNY357,39735.0−3%

236Pitt County, NCNC182,93635.0+15%

237Mountrail County, NDND9,39535.0−12%

238Lincoln County, SDSD77,14535.0+3%

239Winkler County, TXTX7,54035.0−1%

240Yoakum County, TXTX7,43835.0+3%

241St. Bernard Parish, LALA45,64235.0−4%

242Alamosa County, COCO16,68835.0+14%

243Kearny County, KSKS3,88835.0+11%

244Durham County, NCNC347,24035.0+9%

245Harnett County, NCNC150,13735.0+8%

246Hamlin County, SDSD6,90035.1−8%

247Orange County, NCNC152,49835.1+15%

248Woods County, OKOK8,44335.1−7%

249Martin County, TXTX5,28435.1+8%

250Mecklenburg County, NCNC1,233,38335.1+6%

251Lanier County, GAGA10,62335.1+5%

252McLean County, ILIL171,41935.1+15%

253Kings County, NYNY2,653,96335.2+6%

254Anchorage, AKAK287,15535.2+9%

255Kodiak Island, AKAK12,38735.2+11%

256East Baton Rouge Parish, LALA456,18035.2+12%

257Tarrant County, TXTX2,248,46635.2+9%

258Kaufman County, TXTX209,23535.2+1%

259El Paso County, COCO757,04035.2+7%

260Minidoka County, IDID22,91135.2+5%

261Daviess County, ININ34,20935.2−1%

262Fayette County, KYKY329,75135.2+7%

263Benton County, ARAR332,55435.3+0%

264Tunica County, MSMS8,81935.3+15%

265Hill County, MTMT16,16735.3+2%

266Wasatch County, UTUT38,51435.3+20%

267Hendry County, FLFL48,27635.3+20%

268Power County, IDID8,24635.3+12%

269Milwaukee County, WIWI924,21635.3+5%

270Clark County, ARAR20,93835.4+11%

271San Joaquin County, CACA823,81535.4+11%

272St. Louis, MOMO278,14435.4+5%

273Sarpy County, NENE208,30335.4+12%

274Jackson County, OKOK24,76435.4+7%

275Childress County, TXTX6,64335.4−3%

276Denton County, TXTX1,069,34635.4+14%

277Zavala County, TXTX9,03735.4+22%

278Oklahoma County, OKOK822,12535.4+4%

279Dallas County, IAIA118,45735.4+1%

280Stanton County, KSKS1,98635.4+5%

281Colusa County, CACA21,83635.5+13%

282Richmond County, GAGA206,55935.5+10%

283Baltimore, MDMD569,99735.5+1%

284Kent County, MIMI675,23235.5+9%

285Eddy County, NMNM62,50935.5−2%

286Stanislaus County, CACA557,71935.5+12%

287Bryan County, GAGA52,06235.5+7%

288Fulton County, GAGA1,098,79135.5+9%

289Beltrami County, MNMN47,05535.6+13%

290Ramsey County, MNMN541,62335.6+6%

291Bronx County, NYNY1,406,33235.6+14%

292Sherman County, TXTX2,78135.6+3%

293Terry County, TXTX11,72035.6+2%

294Eau Claire County, WIWI109,03335.6+10%

295Orange County, FLFL1,528,00235.6+7%

296Madison County, KYKY101,69635.6+16%

297Phelps County, MOMO45,24735.7+2%

298Richland County, SCSC434,95635.7+10%

299Lyman County, SDSD3,69435.7+3%

300Prince Edward County, VAVA22,39135.7+13%

301Prince William County, VAVA502,96635.7+12%

302Dane County, WIWI590,37535.7+8%

303Santa Barbara County, CACA442,06535.7+7%

304Elkhart County, ININ208,77435.7+8%

305Buena Vista County, IAIA20,44935.7−2%

306Lyon County, KSKS32,26635.7+16%

307Ward County, TXTX11,12535.7−1%

308Chambers County, TXTX57,59435.8+2%

309Hudspeth County, TXTX3,43335.8+19%

310Liberty County, TXTX121,36435.8+5%

311Twin Falls County, IDID97,53935.8+3%

312Dunn County, WIWI46,22335.8+17%

313DeKalb County, GAGA774,39435.8+11%

314Muscogee County, GAGA202,17135.8+10%

315Kendall County, ILIL145,47035.8+5%

316Woodbury County, IAIA106,64935.8+5%

317Canadian County, OKOK187,18935.9+1%

318Hale County, TXTX31,81935.9+14%

319Minnehaha County, SDSD212,69135.9+7%

320Lake County, COCO7,55236.0+18%

321Jasper County, MOMO127,42836.0+3%

322Hall County, NENE63,63336.0+1%

323Doña Ana County, NMNM229,09136.0+19%

324Pickens County, SCSC139,19836.0+10%

325Cochran County, TXTX2,54636.0+3%

326Titus County, TXTX31,56336.0+13%

327Tom Green County, TXTX120,60236.0+7%

328Stafford County, VAVA170,80336.0+9%

329East Carroll Parish, LALA6,76036.0+17%

330Gwinnett County, GAGA1,018,09936.0+11%

331Davis County, IAIA9,23036.0−6%

332Polk County, IAIA516,54636.0+5%

333Pottawatomie County, KSKS27,18636.0+0%

334Ottawa County, MIMI308,45936.1+12%

335Millard County, UTUT14,05736.1+21%

336Castro County, TXTX7,29536.1+12%

337Whitfield County, GAGA106,21236.1+9%

338Sedgwick County, KSKS538,43336.1+7%

339Chaves County, NMNM63,36436.1+3%

340Wichita County, TXTX129,55536.1+9%

341Sevier County, ARAR15,75836.2+8%

342Ascension Parish, LALA135,10536.2+13%

343Bossier Parish, LALA131,86736.2+7%

344Orleans Parish, LALA362,15436.2+9%

345Kalamazoo County, MIMI263,79536.2+11%

346Jackson County, NCNC45,03936.2+0%

347Beadle County, SDSD19,62436.2−10%

348Scott County, KYKY62,26236.2+12%

349Allen County, ININ402,32936.2+6%

350Stevens County, KSKS4,98436.2+8%

351Wake County, NCNC1,257,23536.3+10%

352Matanuska-Susitna, AKAK118,66636.3+6%

353Pope County, ARAR64,97636.3+4%

354Garfield County, OKOK61,77936.3−4%

355Tulsa County, OKOK698,78236.3+6%

356Carroll County, GAGA131,03636.3+12%

357Willacy County, TXTX19,97136.3+22%

358Sevier County, UTUT22,82736.3+20%

359Benton County, WAWA221,72236.3+6%

360Putnam County, TNTN86,61236.4+6%

361Lafayette Parish, LALA257,94936.4+12%

362Ouachita Parish, LALA158,54236.4+13%

363Dawson County, NENE24,45236.4+6%

364Randall County, TXTX152,35136.4+4%

365Sweetwater County, WYWY41,26736.4+6%

366Barrow County, GAGA99,77336.4+12%

367Chatham County, GAGA311,85536.4+6%

368Houston County, GAGA178,21436.4+7%

369Paulding County, GAGA190,99636.4+17%

370Shelby County, TNTN910,22636.5+11%

371Stearns County, MNMN164,11036.5+16%

372San Juan County, NMNM120,34036.5+18%

373Madison County, TXTX14,22636.5+9%

374Mitchell County, TXTX8,94736.5−5%

375Alexandria, VAVA160,66236.5+6%

376Hennepin County, MNMN1,284,78436.5+5%

377Morgan County, COCO30,30636.5+9%

378Lincoln County, IDID5,60336.5+6%

379Collin County, TXTX1,297,17936.5+11%

380San Benito County, CACA70,08236.6+17%

381Tangipahoa Parish, LALA141,34636.6+13%

382Leflore County, MSMS25,68636.6+22%

383Scott County, MSMS28,07336.6+8%

384Berkeley County, SCSC274,66636.6+14%

385Ellis County, TXTX240,86736.6+10%

386Potter County, TXTX114,45336.6+14%

387Scurry County, TXTX16,16236.6−1%

388Livingston Parish, LALA155,03636.6+12%

389Arapahoe County, COCO673,82036.6+6%

390Coffee County, GAGA44,40736.6+14%

391Thomas County, KSKS7,72536.6+4%

392Scotland County, MOMO4,79636.7−2%

393Dawes County, NENE7,85836.7+20%

394Meade County, SDSD30,71136.7+10%

395Williamson County, TXTX752,82736.7+14%

396Columbia County, GAGA169,18936.7+4%

397Effingham County, GAGA74,39736.7+9%

398Lumpkin County, GAGA36,17836.7+13%

399Delaware County, ININ113,10636.7+9%

400Prince George's County, MDMD970,37436.7+10%

401Humboldt County, NVNV17,26736.7+10%

402Winchester, VAVA28,27236.7+4%

403Riverside County, CACA2,544,91636.8+11%

404Wood County, OHOH134,17636.8+13%

405Plaquemines Parish, LALA22,25636.8+9%

406Jackson County, MOMO732,99436.8+5%

407Caldwell County, TXTX55,15036.8+7%

408Hansford County, TXTX4,94436.8+1%

409Greene County, MOMO309,28636.8+5%

410St. Joseph County, ININ272,86136.8+7%

411Garfield County, COCO63,47436.8+8%

412Black Hawk County, IAIA131,53236.8+7%

413Sacramento County, CACA1,618,46036.9+9%

414Benton County, MNMN41,74436.9+16%

415Saline County, MOMO23,26536.9−1%

416Saline County, NENE14,99636.9+1%

417New York County, NYNY1,664,86236.9+3%

418Beckham County, OKOK22,15936.9+1%

419Bryan County, OKOK51,36736.9+3%

420Morrow County, OROR12,60236.9+11%

421Charles Mix County, SDSD9,30336.9+3%

422Brazoria County, TXTX419,08036.9+9%

423Hamilton County, OHOH838,41836.9+4%

424Sherburne County, MNMN104,19436.9+18%

425Sutter County, CACA98,78736.9+8%

426Atchison County, KSKS16,17236.9+2%

427Walker County, TXTX83,84236.9+19%

428King County, WAWA2,344,93936.9+3%

429Pierce County, WAWA946,28836.9+8%

430Calcasieu Parish, LALA208,46637.0+7%

431Otero County, NMNM70,36837.0+9%

432Cherokee County, OKOK49,19637.0+15%

433Loudoun County, VAVA449,74937.0+10%

434La Crosse County, WIWI121,33937.0+10%

435Cobb County, GAGA793,34537.0+11%

436Portsmouth, VAVA96,77737.0+7%

437Jeff Davis County, GAGA15,21937.0+6%

438McDonough County, ILIL25,91637.0+28%

439Yuma County, AZAZ224,44937.1+9%

440San Diego County, CACA3,282,24837.1+12%

441Olmsted County, MNMN166,73137.1+6%

442Essex County, NJNJ896,37937.1+7%

443Orange County, NYNY417,66937.1+7%

444Marion County, OROR355,77737.1+10%

445Hockley County, TXTX21,60037.1+11%

446Reeves County, TXTX12,13837.1+16%

447Gooding County, IDID16,44637.1+6%

448Fort Bend County, TXTX975,19137.1+11%

449Virginia Beach, VAVA453,73737.1+13%

450Tift County, GAGA42,25437.1+12%

451St. Mary's County, MDMD116,69237.1+8%

452Maricopa County, AZAZ4,689,55837.2+13%

453Lassen County, CACA28,11737.2+8%

454Nicollet County, MNMN34,27337.2+14%

455Winona County, MNMN50,52337.2+13%

456Hardin County, OHOH30,07237.2+12%

457Umatilla County, OROR81,11937.2+8%

458Washington County, OROR611,70837.2+13%

459Nueces County, TXTX352,99237.2+12%

460Montgomery County, TXTX781,19437.2+8%

461Hampton, VAVA137,31537.2+9%

462Echols County, GAGA3,68537.2+25%

463Kittitas County, WAWA48,80337.2+18%

464Grant County, WIWI52,44637.2+4%

465Russell County, ALAL58,89837.3+5%

466Columbia County, ARAR21,89437.3+4%

467Mississippi County, ARAR37,82837.3+13%

468Natchitoches Parish, LALA36,08937.3+24%

469Uinta County, WYWY20,72837.3+19%

470Clay County, MOMO265,03237.3+7%

471Gunnison County, COCO17,43937.3+23%

472Bleckley County, GAGA12,86637.3+6%

473Dawson County, TXTX11,77637.3+5%

474Uvalde County, TXTX24,96337.3+16%

475Cook County, ILIL5,194,62537.4+11%

476Cape Girardeau County, MOMO83,99937.4+6%

477Lonoke County, ARAR76,66437.4+8%

478Rice County, MNMN69,93937.4+14%

479Wright County, MNMN157,55937.4+13%

480Coahoma County, MSMS19,84937.4+23%

481Lincoln County, MOMO66,67637.4+8%

482Atascosa County, TXTX53,59037.4+16%

483Jefferson County, TXTX254,32137.4+6%

484Johnson County, TXTX218,04837.4+9%

485Butler County, OHOH400,12837.4+9%

486Larimer County, COCO377,29237.4+13%

487Hardee County, FLFL25,93237.4+14%

488Ada County, IDID546,14137.4+14%

489Vigo County, ININ106,51237.4+7%

490West Baton Rouge Parish, LALA28,75637.4+10%

491Madison County, NENE36,10637.4+7%

492Boone County, KYKY145,31637.5+12%

493Glenn County, CACA28,14137.5+11%

494Los Angeles County, CACA9,694,93437.5+17%

495Santa Clara County, CACA1,914,39137.5+10%

496Calloway County, KYKY39,42137.5+9%

497Lyon County, MNMN25,68437.5+10%

498Gregg County, TXTX126,09537.5+7%

499Pecos County, TXTX14,56037.5+20%

500Smith County, TXTX252,54937.5+6%

SHOWING 1–500 OF 3,135

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Download CSV (full list, 3,135 rows)

UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES

Frequently asked

Which county has the lowest median age?

Lexington, Virginia ranks #1 with 22.7 (2020 American Community Survey).

What are the top 5 counties by median age?

Lexington, Virginia, Madison County, Idaho, Harrisonburg, Virginia, Radford, Virginia, Kusilvak Census Area, Alaska.

How many counties are in this ranking?

3,135 counties qualify after filtering for population minimums and data availability. The ranking covers 2020 ACS 5-year data.

How is median age measured?

Median age of all residents. Source: US Census Bureau, American Community Survey 5-year estimates (2020).