RANKING · 2020 CENSUS · 500 SHOWN OF 3,135

Oldest by median age, US counties · 2020

US counties ranked by median age of residents (2020 ACS). Sumter County, Florida leads at 68.5. 3,135 counties qualify in total. Florida carries 4 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

USUnited States331,449,28138.8–

01Sumter County, FLFL157,77268.5+39%

02Catron County, NMNM3,82761.9+29%

03Charlotte County, FLFL217,21260.2+11%

04Jefferson County, WAWA33,97059.6+27%

05Lancaster County, VAVA10,99559.2+19%

06Ontonagon County, MIMI5,82359.1+29%

07Northumberland County, VAVA12,55758.7+17%

08McCormick County, SCSC10,21558.5+42%

09Harding County, NMNM61758.4+20%

10Jeff Davis County, TXTX1,71158.4+37%

11Highland County, VAVA2,31858.4+27%

12Custer County, COCO5,59058.3+30%

13Alcona County, MIMI10,55658.2+19%

14Citrus County, FLFL171,66657.9+10%

15Llano County, TXTX23,35357.7+9%

16Sarasota County, FLFL479,95857.6+14%

17Curry County, OROR22,62157.5+18%

18Sierra County, NMNM11,39557.3+17%

19Hickory County, MOMO9,04457.2+15%

20Towns County, GAGA13,28557.2+18%

21Hamilton County, NYNY5,00657.0+26%

22Mineral County, COCO91056.8+26%

23Vilas County, WIWI23,76156.8+24%

24Keweenaw County, MIMI2,18656.6+26%

25Montmorency County, MIMI9,84256.6+20%

26Roscommon County, MIMI23,91456.6+20%

27Brunswick County, NCNC174,70256.5+34%

28Custer County, SDSD9,43156.4+31%

29Iron County, WIWI6,12756.4+25%

30Real County, TXTX2,74556.3+26%

31Hinsdale County, COCO75356.3+28%

32Aitkin County, MNMN16,25256.2+21%

33Presque Isle County, MIMI13,12856.1+24%

34San Juan County, WAWA18,57756.1+18%

35Huerfano County, COCO7,01156.0+34%

36Wheeler County, OROR1,47255.9+16%

37Union County, GAGA27,85955.9+25%

38Yavapai County, AZAZ252,55255.5+25%

39Florence County, WIWI4,74855.5+32%

40Middlesex County, VAVA10,84155.4+18%

41Clay County, NCNC12,23955.3+18%

42Sanders County, MTMT14,06255.2+25%

43Leelanau County, MIMI22,98255.1+29%

44Boyd County, NENE1,67455.1+26%

45Fall River County, SDSD7,46755.1+21%

46Indian River County, FLFL172,79955.1+17%

47Barnstable County, MAMA233,53955.0+23%

48Carroll County, NHNH52,78454.9+29%

49Adams County, IDID5,01354.9+24%

50McIntosh County, NDND2,45154.7+7%

51Highlands County, FLFL111,12254.7+9%

52La Paz County, AZAZ16,71154.6+17%

53Pamlico County, NCNC12,75854.6+27%

54Ouray County, COCO5,26554.6+26%

55Door County, WIWI30,61654.5+27%

56Burnett County, WIWI17,22354.4+23%

57Mathews County, VAVA8,52954.3+18%

58Storey County, NVNV4,26054.2+22%

59Bayfield County, WIWI16,78754.2+29%

60Douglas County, NVNV50,11154.1+30%

61Custer County, IDID4,63654.0+31%

62Stone County, MOMO32,50354.0+22%

63Lincoln County, MTMT22,32854.0+28%

64Flagler County, FLFL140,36054.0+7%

65Sierra County, CACA3,09853.9+23%

66Boise County, IDID8,54553.9+33%

67Mohave County, AZAZ228,10253.8+25%

68Oscoda County, MIMI8,72353.8+23%

69Benton County, MOMO20,53653.8+16%

70Mora County, NMNM4,05153.8+36%

71Polk County, NCNC20,53353.8+20%

72Nelson County, NDND2,96353.8+14%

73Sabine County, TXTX10,01253.8+14%

74Adams County, WIWI21,75253.8+21%

75Bandera County, TXTX22,87653.8+30%

76Pacific County, WAWA24,35753.8+17%

77Mackinac County, MIMI11,23653.7+25%

78Quitman County, GAGA2,25453.7+28%

79Iron County, MIMI11,75753.6+18%

80Nye County, NVNV57,33653.6+25%

81Cumberland County, TNTN66,30053.6+26%

82Esmeralda County, NVNV72953.6+19%

83Campbell County, SDSD1,37753.5+28%

84Iosco County, MIMI25,26653.4+21%

85Petroleum County, MTMT54853.4+30%

86Wahkiakum County, WAWA4,87353.4+20%

87Pendleton County, WVWV5,82653.4+30%

88Martin County, FLFL166,27253.3+13%

89Meagher County, MTMT2,13753.2+24%

90Sullivan County, PAPA5,85653.2+24%

91Gillespie County, TXTX28,52753.2+15%

92Menard County, TXTX1,95653.2+21%

93Fannin County, GAGA26,11153.2+23%

94Grant County, NDND2,20653.1+14%

95Cook County, MNMN5,52253.1+21%

96Golden Valley County, MTMT84453.1+28%

97Cherokee County, NCNC30,83053.1+21%

98Plumas County, CACA18,58353.0+20%

99Lincoln County, NMNM19,84453.0+21%

100Stonewall County, TXTX1,18653.0+21%

101Madison County, MTMT10,02652.9+22%

102Lincoln County, OROR50,63652.9+20%

103Collier County, FLFL417,13152.9+20%

104Clallam County, WAWA78,20252.9+21%

105Washburn County, WIWI17,08752.9+26%

106Marion County, ARAR17,59352.8+20%

107Mineral County, MTMT5,18552.8+28%

108Prairie County, MTMT1,11252.8+8%

109Wallowa County, OROR7,59552.8+19%

110Kent County, TXTX67452.8+12%

111Price County, WIWI13,98852.8+27%

112Oneida County, WIWI38,13152.8+25%

113Baxter County, ARAR42,98252.7+10%

114Mason County, TXTX3,99052.7+13%

115Sawyer County, WIWI18,84652.7+25%

116Columbia County, WAWA4,14152.7+24%

117Schoolcraft County, MIMI8,18752.6+27%

118Granite County, MTMT3,65852.6+23%

119Blanco County, TXTX13,58152.6+28%

120Marion County, TXTX9,89652.6+21%

121Charles City County, VAVA6,62352.6+32%

122Lemhi County, IDID8,47452.6+23%

123Aransas County, TXTX26,14652.5+23%

124Pope County, ILIL3,67252.5+28%

125Wells County, NDND3,72952.4+16%

126Rappahannock County, VAVA7,43952.4+23%

127Potter County, SDSD2,37752.2+14%

128Costilla County, COCO3,67952.2+24%

129Archuleta County, COCO14,30652.2+28%

130Hardin County, ILIL3,58852.2+24%

131Lincoln County, MEME36,59552.2+23%

132Mariposa County, CACA16,91852.1+21%

133Clearwater County, IDID9,11852.1+25%

134Antrim County, MIMI24,69852.1+27%

135Northampton County, NCNC16,49152.1+30%

136Essex County, VTVT6,05152.1+34%

137Northampton County, VAVA11,87952.1+23%

138Smith County, KSKS3,56652.1+13%

139Nelson County, VAVA14,92052.0+21%

140Piscataquis County, MEME17,40952.0+24%

141Foard County, TXTX1,04452.0+25%

142Georgetown County, SCSC65,91251.9+33%

143Ozark County, MOMO9,17251.9+19%

144Sheridan County, NDND1,29651.8+8%

145Kimble County, TXTX4,43851.8+20%

146Gila County, AZAZ53,80151.7+22%

147Emmons County, NDND3,21551.7+16%

148Newton County, ARAR7,02651.6+29%

149Amador County, CACA41,87651.6+21%

150Calaveras County, CACA46,60551.6+16%

151Camden County, MOMO44,04751.6+14%

152McPherson County, SDSD2,34751.6+8%

153Teller County, COCO24,75651.6+31%

154Greene County, GAGA21,36751.6+32%

155Ferry County, WAWA7,51751.6+29%

156Pend Oreille County, WAWA14,45751.6+23%

157Surry County, VAVA6,60351.5+31%

158Lake County, MIMI13,18251.5+19%

159De Baca County, NMNM1,64751.5+18%

160Cape May County, NJNJ93,39051.5+22%

161Edwards County, TXTX1,37051.4+32%

162Idaho County, IDID17,87451.4+22%

163Judith Basin County, MTMT2,16251.4+22%

164Talbot County, GAGA5,70951.4+30%

165Musselshell County, MTMT5,58251.3+19%

166Cameron County, PAPA4,21151.3+24%

167Cheboygan County, MIMI25,79351.1+24%

168Garden County, NENE1,80451.1+12%

169Towner County, NDND2,04051.1+16%

170Pickett County, TNTN5,21951.1+23%

171Bath County, VAVA4,07651.1+22%

172Crawford County, MIMI13,72251.0+26%

173Gogebic County, MIMI14,28551.0+19%

174Taliaferro County, GAGA1,66251.0+27%

175Gladwin County, MIMI26,07750.9+20%

176Harlan County, NENE3,00050.9+14%

177Macon County, NCNC39,23250.9+13%

178Adams County, NDND2,27550.9+12%

179Coleman County, TXTX7,91550.9+18%

180Decatur County, KSKS2,71650.8+15%

181Powder River County, MTMT1,78150.8+21%

182Grant County, OROR7,07550.8+22%

183Patrick County, VAVA17,42450.8+25%

184Sussex County, DEDE277,14050.8+24%

185Talbot County, MDMD38,23850.7+17%

186Alleghany County, NCNC11,47950.7+18%

187Perquimans County, NCNC13,49050.7+20%

188Franklin County, FLFL13,02950.7+24%

189Montgomery County, ARAR8,57950.6+22%

190Arenac County, MIMI15,06850.6+26%

191Benzie County, MIMI18,56850.6+24%

192Ogemaw County, MIMI21,12150.6+20%

193Lake County, MNMN10,74650.6+18%

194Lake of the Woods County, MNMN3,77050.6+22%

195Carteret County, NCNC70,46950.6+20%

196Kerr County, TXTX54,03750.6+16%

197Terrell County, TXTX70250.6+20%

198Trinity County, TXTX14,38450.6+17%

199Cleburne County, ARAR25,67250.5+16%

200Worcester County, MDMD54,45950.5+17%

201Jerauld County, SDSD1,65450.5+9%

202Wood County, TXTX49,68850.5+17%

203Loup County, NENE57050.5+18%

204Manistee County, MIMI25,65650.4+21%

205Coos County, NHNH31,34350.4+21%

206Transylvania County, NCNC34,21150.4+15%

207Grand Isle County, VTVT7,51150.4+26%

208Graham County, KSKS2,37150.4+14%

209Cass County, MNMN31,43050.3+19%

210Pocahontas County, WVWV7,60250.3+20%

211Marion County, FLFL442,66050.3+15%

212Kalawao County, HIHI8250.3−14%

213Elk County, KSKS2,45850.3+9%

214Ness County, KSKS2,61750.3+15%

215Van Buren County, ARAR16,23850.2+14%

216Ravalli County, MTMT48,58250.2+22%

217Fairfield County, SCSC20,34050.2+36%

218McIntosh County, GAGA11,98950.2+36%

219Marquette County, WIWI15,92750.2+23%

220Alpine County, CACA1,04350.1+27%

221Mills County, TXTX4,58050.1+13%

222Henderson County, ILIL5,98450.1+22%

223King and Queen County, VAVA6,74350.1+22%

224Twiggs County, GAGA7,59750.1+42%

225Jo Daviess County, ILIL21,59450.1+20%

226Brown County, ININ15,77750.1+23%

227Coke County, TXTX3,41250.1+16%

228Carbon County, MTMT11,46650.0+19%

229Nuckolls County, NENE4,10050.0+13%

230Colfax County, NMNM12,18450.0+23%

231Ashe County, NCNC27,51450.0+19%

232Warren County, NCNC18,89850.0+26%

233Ottawa County, OHOH39,48150.0+22%

234Loudon County, TNTN63,76450.0+22%

235Taos County, NMNM34,56450.0+27%

236Koochiching County, MNMN11,58749.9+20%

237Deuel County, NENE1,86249.9+15%

238Washington County, NCNC10,63849.9+27%

239Westmoreland County, VAVA19,71549.9+17%

240Waushara County, WIWI25,22349.9+19%

241Jewell County, KSKS2,83049.9+8%

242Stone County, ARAR12,70349.8+16%

243Charlevoix County, MIMI26,03649.8+27%

244Mecklenburg County, VAVA30,74749.8+22%

245Rusk County, WIWI14,14649.8+24%

246Jefferson County, FLFL16,00749.8+26%

247Nevada County, CACA101,91149.7+15%

248Rabun County, GAGA17,76449.7+18%

249Dare County, NCNC38,24549.7+23%

250Tucker County, WVWV6,54049.7+18%

251Hernando County, FLFL221,70149.7+0%

252Lee County, FLFL875,60749.7+10%

253Monroe County, FLFL80,40649.7+17%

254Knox County, MEME41,11749.6+20%

255Huron County, MIMI30,53049.6+20%

256Grayson County, VAVA15,23049.6+22%

257Sedgwick County, COCO2,24749.6+15%

258Forest County, WIWI9,57449.5+24%

259Park County, COCO18,31449.5+24%

260Hancock County, MEME57,17149.5+22%

261Rock County, NENE1,25949.5+14%

262Wheeler County, NENE78949.5+23%

263McIntosh County, OKOK19,75849.5+12%

264Goochland County, VAVA29,18749.5+22%

265Langlade County, WIWI19,53449.5+22%

266Valley County, IDID12,83149.5+14%

267Alger County, MIMI8,64149.4+20%

268Menominee County, MIMI22,94149.4+22%

269Deer Lodge County, MTMT9,70949.4+17%

270Manatee County, FLFL468,20049.4+13%

271Gilmer County, GAGA33,89449.4+32%

272Lyon County, KYKY9,12349.4+19%

273Washington County, MEME31,33449.4+22%

274Dukes County, MAMA21,21949.3+21%

275Wayne County, MOMO10,78249.3+16%

276Belknap County, NHNH65,14749.3+23%

277Grant County, NMNM27,25249.3+27%

278Mitchell County, NCNC15,06249.3+17%

279San Augustine County, TXTX7,72249.3+17%

280Alleghany County, VAVA14,54649.3+20%

281Osborne County, KSKS3,28549.3+12%

282Chaffee County, COCO20,83149.3+18%

283Pinellas County, FLFL948,56349.3+15%

284Bonner County, IDID54,42049.3+21%

285Republic County, KSKS4,64049.3+8%

286Marinette County, WIWI42,57449.3+22%

287Griggs County, NDND2,23949.2+7%

288Tillamook County, OROR27,38449.2+13%

289McMullen County, TXTX54449.2+14%

290Motley County, TXTX1,04349.2+11%

291Blaine County, NENE45849.2+24%

292Jefferson County, MTMT13,32949.2+22%

293Kent County, MDMD19,56549.2+19%

294Luce County, MIMI6,33949.1+27%

295Amite County, MSMS12,48749.1+28%

296Keya Paha County, NENE79249.1+17%

297Chowan County, NCNC14,08249.1+23%

298Coos County, OROR63,99249.1+14%

299Wayne County, PAPA51,70349.1+20%

300Fayette County, TXTX25,45949.1+15%

301Platte County, WYWY8,63449.1+19%

302Dolores County, COCO2,46649.1+16%

303Alexander County, ILIL4,57049.1+29%

304Dickinson County, IAIA18,07749.1+13%

305Kimball County, NENE3,39149.0+14%

306Calhoun County, SCSC14,18849.0+26%

307Horry County, SCSC427,55149.0+28%

308Clay County, TNTN7,82149.0+23%

309Morgan County, WVWV18,02749.0+20%

310Calhoun County, ILIL4,30049.0+21%

311Coosa County, ALAL10,16148.9+30%

312Delta County, COCO32,17848.9+16%

313Aroostook County, MEME66,60948.9+20%

314Kittson County, MNMN4,03148.9+15%

315Jones County, NCNC9,57548.9+25%

316Putnam County, GAGA23,72248.9+23%

317Lincoln County, WIWI28,40348.9+26%

318Tuolumne County, CACA53,16048.9+14%

319Hot Springs County, WYWY4,60048.9+11%

320Searcy County, ARAR7,84848.8+15%

321Dundy County, NENE1,56848.8+12%

322Sherman County, NENE2,92448.8+13%

323Columbia County, NYNY60,16848.8+20%

324Gulf County, FLFL15,94348.8+21%

325Lewis County, IDID3,70448.8+15%

326Trego County, KSKS2,74048.8+12%

327McPherson County, NENE36948.8+20%

328Haywood County, NCNC63,36948.8+15%

329Modoc County, CACA8,42648.7+17%

330Franklin County, NENE2,79548.7+14%

331Hyde County, NCNC4,55448.7+23%

332Pike County, PAPA62,80848.7+23%

333Carroll County, VAVA29,29948.7+20%

334Greenwood County, KSKS5,82648.7+14%

335Lincoln County, GAGA8,11248.7+24%

336Haines, AKAK2,06848.6+19%

337Delaware County, NYNY44,30548.6+17%

338Potter County, PAPA15,89748.6+24%

339Throckmorton County, TXTX1,55448.6+16%

340Essex County, VAVA10,65448.6+21%

341Franklin County, VAVA55,52648.6+22%

342Ritchie County, WVWV8,03448.6+22%

343Summers County, WVWV11,53248.6+12%

344Stillwater County, MTMT9,44548.6+19%

345Wrangell, AKAK2,00748.5–

346Beaufort County, NCNC44,67048.5+21%

347Leon County, TXTX16,89448.5+15%

348Windsor County, VTVT57,31248.5+17%

349Rockbridge County, VAVA22,66348.5+20%

350Siskiyou County, CACA42,01348.5+13%

351Brevard County, FLFL663,98248.5+17%

352Sharp County, ARAR18,12248.4+9%

353Calhoun County, WVWV5,97848.4+17%

354Holt County, MOMO4,20048.4+16%

355St. Clair County, MOMO9,97648.4+10%

356Steele County, NDND1,79748.4+17%

357Baker County, OROR16,65848.4+13%

358Josephine County, OROR87,86748.4+12%

359Bland County, VAVA6,15148.4+20%

360Las Animas County, COCO14,39148.4+18%

361Sweet Grass County, MTMT3,76248.4+17%

362Lincoln County, WAWA11,98248.4+13%

363Robertson County, KYKY2,32548.3+22%

364Big Stone County, MNMN5,05448.3+11%

365Yancey County, NCNC19,08448.3+15%

366Bosque County, TXTX18,91848.3+16%

367Clarke County, VAVA15,60948.3+19%

368Webster County, WVWV7,76048.3+20%

369Clear Creek County, COCO8,99448.3+20%

370Levy County, FLFL48,52048.3+18%

371Stevens County, WAWA49,66848.3+23%

372Rutland County, VTVT59,65348.2+22%

373Lake County, FLFL456,06848.2+7%

374Volusia County, FLFL606,57348.2+14%

375Shoshone County, IDID14,13048.2+15%

376Susquehanna County, PAPA38,23748.2+22%

377Izard County, ARAR14,40548.1+13%

378Cavalier County, NDND3,49748.1+6%

379Alpena County, MIMI28,85348.1+19%

380Douglas County, OROR111,95148.1+17%

381Rush County, KSKS2,84548.1+8%

382Garfield County, WAWA2,41648.1+12%

383Hickman County, KYKY4,37248.0+17%

384Clare County, MIMI31,54348.0+19%

385Lac qui Parle County, MNMN6,70448.0+11%

386Chatham County, NCNC85,11148.0+24%

387Delaware County, OKOK41,91048.0+18%

388Gilliam County, OROR1,97148.0+12%

389Elk County, PAPA29,92648.0+22%

390Gregory County, SDSD4,03748.0+8%

391Hood County, TXTX70,50148.0+16%

392Red River County, TXTX11,81648.0+19%

393Botetourt County, VAVA34,14448.0+18%

394Southampton County, VAVA18,11048.0+24%

395Johnson County, WYWY8,90848.0+12%

396Jackson County, COCO1,21148.0+19%

397Hancock County, GAGA8,68248.0+34%

398Henderson County, NCNC122,37548.0+12%

399Fulton County, ARAR12,49247.9+11%

400Martin County, NCNC21,60147.9+24%

401Pawnee County, NENE2,51047.9+4%

402Sioux County, NENE1,18847.9+15%

403Santa Fe County, NMNM156,90747.9+26%

404Logan County, NDND1,85947.9+3%

405Benton County, TNTN16,18347.9+15%

406Bennington County, VTVT36,63047.9+19%

407Craig County, VAVA4,80047.9+21%

408Wilkes County, GAGA9,54047.9+23%

409Berkshire County, MAMA128,22447.8+18%

410Delta County, MIMI36,58247.8+18%

411Douglas County, MOMO12,34247.8+19%

412Worth County, MOMO1,91447.8+14%

413Wibaux County, MTMT88547.8+13%

414Thomas County, NENE63947.8+8%

415Warren County, PAPA37,03847.8+18%

416Accomack County, VAVA33,85947.8+21%

417Buchanan County, VAVA18,49247.8+23%

418Cumberland County, KYKY5,99247.8+19%

419Gosper County, NENE1,80347.8+10%

420Scott County, VAVA21,20047.8+15%

421Cherokee County, ALAL26,41347.7+19%

422Polk County, TXTX53,43447.7+21%

423Grant County, WVWV11,04147.7+21%

424Warren County, GAGA5,26947.7+26%

425Lane County, KSKS1,50847.7+15%

426Stokes County, NCNC46,12647.7+28%

427Halifax County, VAVA33,44747.7+17%

428James City County, VAVA83,32647.7+17%

429Monroe County, WVWV12,49147.7+20%

430Unicoi County, TNTN17,85647.7+15%

431Pickens County, GAGA37,16747.7+26%

432Gilpin County, COCO6,07347.7+25%

433Livingston County, KYKY8,86347.7+20%

434Choctaw County, ALAL11,90447.6+26%

435Tensas Parish, LALA3,70047.6+28%

436Mason County, MIMI29,04047.6+18%

437Caswell County, NCNC22,56347.6+25%

438Bedford County, PAPA47,48047.6+21%

439Decatur County, TNTN11,82047.6+16%

440Fayette County, TNTN45,07147.6+25%

441Fentress County, TNTN20,32247.6+25%

442Johnson County, TNTN18,71847.6+19%

443Rains County, TXTX13,54247.6+16%

444Windham County, VTVT45,20447.6+19%

445Henry County, VAVA49,24247.6+21%

446Trinity County, CACA15,72047.6+7%

447Oxford County, MEME60,34647.6+18%

448Westmoreland County, PAPA349,32447.6+15%

449Daggett County, UTUT93447.6+21%

450Dade County, MOMO7,80447.5+14%

451Oregon County, MOMO8,70947.5+16%

452Fergus County, MTMT11,82547.5+12%

453Quay County, NMNM8,45447.5+14%

454Essex County, NYNY36,43847.5+21%

455McCulloch County, TXTX7,47247.5+18%

456Floyd County, VAVA15,78947.5+17%

457Tyler County, WVWV7,88147.5+16%

458San Juan County, COCO81347.5+9%

459Dixie County, FLFL18,03847.5+17%

460Benewah County, IDID10,50847.5+21%

461Schuyler County, ILIL6,65747.5+16%

462Warren County, NYNY65,02047.5+22%

463Hoonah-Angoon Census Area, AKAK2,27147.4–

464Murray County, MNMN7,94247.4+12%

465Shannon County, MOMO7,28547.4+22%

466Hitchcock County, NENE2,46747.4+9%

467Hettinger County, NDND2,49247.4+3%

468LaMoure County, NDND4,13547.4+9%

469Monroe County, OHOH12,99447.4+16%

470Venango County, PAPA49,34647.4+18%

471Jackson County, TNTN12,46647.4+19%

472Hamilton County, TXTX8,68047.4+10%

473Wirt County, WVWV4,87947.4+25%

474Sagadahoc County, MEME37,97947.4+25%

475Dickens County, TXTX1,69247.3+21%

476Emmet County, MIMI33,77547.3+22%

477Carroll County, MSMS9,22647.3+24%

478Mineral County, NVNV4,40747.3+10%

479Crook County, OROR27,56447.3+23%

480Lake County, OROR8,18747.3+11%

481Armstrong County, PAPA63,69847.3+17%

482Beaufort County, SCSC204,43347.3+32%

483Wayne County, UTUT2,58747.3+39%

484Bedford County, VAVA83,05947.3+19%

485Pittsylvania County, VAVA59,49047.3+19%

486Braxton County, WVWV11,88547.3+19%

487Greenbrier County, WVWV31,57847.3+14%

488Roane County, TNTN57,39547.3+16%

489Gallatin County, ILIL4,61647.3+16%

490Audubon County, IAIA5,50947.3+12%

491Waldo County, MEME40,69347.3+20%

492Wheatland County, MTMT2,10047.2+14%

493Keith County, NENE8,10047.2+15%

494Sullivan County, NHNH43,96147.2+18%

495Tyrrell County, NCNC3,53747.2+22%

496Kidder County, NDND2,39347.2+6%

497Allendale County, SCSC7,35547.2+34%

498Day County, SDSD5,48447.2+10%

499Perkins County, SDSD2,85347.2+10%

500Hall County, TXTX2,73747.2+17%

SHOWING 1–500 OF 3,135

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Download CSV (full list, 3,135 rows)

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

Frequently asked

Which county has the highest median age?

Sumter County, Florida ranks #1 with 68.5 (2020 Decennial Census).

What are the top 5 counties by median age?

Sumter County, Florida, Catron County, New Mexico, Charlotte County, Florida, Jefferson County, Washington, Lancaster County, Virginia.

How many counties are in this ranking?

3,135 counties qualify after filtering for population minimums and data availability. The ranking covers 2020 Decennial Census data.

How is median age measured?

Median age of all residents. Source: US Census Bureau, 2020 Decennial Census.