RANKING · 2000 CENSUS · 500 SHOWN OF 3,125

Oldest by median age, US counties · 2000

US counties ranked by median age of residents (2000 ACS). Kalawao County, Hawaii leads at 58.6. 3,125 counties qualify in total. Florida carries 7 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 1990

USUnited States281,421,90635.2–

01Kalawao County, HIHI8258.6−6%

02Charlotte County, FLFL217,21254.3+1%

03Llano County, TXTX23,35353.0−5%

04Citrus County, FLFL171,66652.6+4%

05McIntosh County, NDND2,45151.0+4%

06Sarasota County, FLFL479,95850.5+3%

07Flagler County, FLFL140,36050.4+9%

08Northumberland County, VAVA12,55750.1+12%

09Highlands County, FLFL111,12250.0−3%

10Lancaster County, VAVA10,99549.8+10%

11Hickory County, MOMO9,04449.7−2%

12Hernando County, FLFL221,70149.5−0%

13Sumter County, FLFL157,77249.2+23%

14Divide County, NDND2,11049.0+11%

15Alcona County, MIMI10,55649.0+8%

16Prairie County, MTMT1,11248.9+13%

17Sierra County, NMNM11,39548.9−5%

18Curry County, OROR22,62148.8+11%

19Harding County, NMNM61748.7+28%

20Towns County, GAGA13,28548.6+13%

21Baxter County, ARAR42,98248.1+1%

22Sheridan County, NDND1,29648.1+14%

23Wheeler County, OROR1,47248.1+11%

24Catron County, NMNM3,82747.8+27%

25McPherson County, SDSD2,34747.6+2%

26Burke County, NDND2,13247.5+12%

27San Juan County, WAWA18,57747.4+9%

28Martin County, FLFL166,27247.3+7%

29Roscommon County, MIMI23,91447.2+6%

30Nelson County, NDND2,96347.2+4%

31Kent County, TXTX67447.1+16%

32Jefferson County, WAWA33,97047.1+15%

33Montmorency County, MIMI9,84247.0+15%

34Daniels County, MTMT1,61247.0+14%

35Sabine County, TXTX10,01247.0+4%

36Indian River County, FLFL172,79947.0+7%

37Comanche County, KSKS1,67346.9+12%

38La Paz County, AZAZ16,71146.8+29%

39Middlesex County, VAVA10,84146.8+9%

40Clay County, NCNC12,23946.7+17%

41Mason County, TXTX3,99046.7+9%

42Grant County, NDND2,20646.5+18%

43Aitkin County, MNMN16,25246.5+9%

44Logan County, NDND1,85946.4+7%

45Benton County, MOMO20,53646.3+4%

46Jerauld County, SDSD1,65446.3+12%

47Gillespie County, TXTX28,52746.3+10%

48Hettinger County, NDND2,49246.2+13%

49Mathews County, VAVA8,52946.2+3%

50Jewell County, KSKS2,83046.2+9%

51Highland County, VAVA2,31846.0+13%

52Elk County, KSKS2,45846.0−1%

53Smith County, KSKS3,56646.0+1%

54Ontonagon County, MIMI5,82345.9+14%

55Garfield County, NENE1,71045.9+12%

56Pawnee County, NENE2,51045.9+4%

57Griggs County, NDND2,23945.8+12%

58Potter County, SDSD2,37745.8+17%

59Loving County, TXTX5245.8+35%

60Pacific County, WAWA24,35745.8+13%

61Vilas County, WIWI23,76145.8+6%

62Republic County, KSKS4,64045.7+4%

63Garden County, NENE1,80445.6+8%

64Adams County, NDND2,27545.6+16%

65Fall River County, SDSD7,46745.5+9%

66Iron County, MIMI11,75745.4+4%

67Hamilton County, NYNY5,00645.4+14%

68Rawlins County, KSKS2,43145.4+18%

69Hooker County, NENE68645.3+4%

70Ellis County, OKOK3,61345.3+15%

71Cavalier County, NDND3,49745.2+17%

72Camden County, MOMO44,04745.2+9%

73Macon County, NCNC39,23245.2+5%

74Wells County, NDND3,72945.2+7%

75Lee County, FLFL875,60745.2+7%

76Presque Isle County, MIMI13,12845.1+17%

77Sheridan County, MTMT3,43645.1+14%

78Lake County, FLFL456,06845.1+1%

79Esmeralda County, NVNV72945.1+25%

80Mineral County, COCO91045.0+20%

81Iron County, WIWI6,12745.0+6%

82Keweenaw County, MIMI2,18644.9−3%

83Polk County, NCNC20,53344.9+5%

84Custer County, COCO5,59044.9+14%

85Pasco County, FLFL674,51644.9−7%

86Baylor County, TXTX3,47244.8+3%

87Union County, GAGA27,85944.8+15%

88Chautauqua County, KSKS3,32144.7+2%

89Calaveras County, CACA46,60544.6+12%

90Barnstable County, MAMA233,53944.6+13%

91Real County, TXTX2,74544.6+4%

92Trinity County, CACA15,72044.6+18%

93Rush County, KSKS2,84544.6+4%

94Yavapai County, AZAZ252,55244.5+5%

95Emmons County, NDND3,21544.5+11%

96Harlan County, NENE3,00044.5+8%

97Storey County, NVNV4,26044.5+19%

98Kidder County, NDND2,39344.5+16%

99Adams County, WIWI21,75244.5+10%

100Wallowa County, OROR7,59544.4+18%

101Mills County, TXTX4,58044.4+4%

102Wahkiakum County, WAWA4,87344.4+11%

103Motley County, TXTX1,04344.4+5%

104Adams County, IDID5,01344.4+23%

105Graham County, KSKS2,37144.4+14%

106Sharp County, ARAR18,12244.3−2%

107Decatur County, KSKS2,71644.3+11%

108Gregory County, SDSD4,03744.3+16%

109Van Buren County, ARAR16,23844.2+1%

110Plumas County, CACA18,58344.2+13%

111Iosco County, MIMI25,26644.2+36%

112Sanders County, MTMT14,06244.2+20%

113Thomas County, NENE63944.2+23%

114Webster County, NENE3,33644.2+2%

115Cheyenne County, KSKS2,60444.2+6%

116Forest County, PAPA6,61444.2+8%

117Hot Springs County, WYWY4,60044.2+16%

118Marion County, ARAR17,59344.1+4%

119Stone County, MOMO32,50344.1+3%

120Nuckolls County, NENE4,10044.1+10%

121Thayer County, NENE4,84244.1+5%

122McLean County, NDND9,74044.1+18%

123McIntosh County, OKOK19,75844.1+5%

124Lincoln County, OROR50,63644.1+11%

125Menard County, TXTX1,95644.1+6%

126Burnett County, WIWI17,22344.1+13%

127Collier County, FLFL417,13144.1+8%

128Russell County, KSKS6,58144.1+9%

129Woodson County, KSKS3,11844.1+5%

130Cook County, MNMN5,52244.0+15%

131Cherokee County, NCNC30,83044.0+12%

132Towner County, NDND2,04044.0+15%

133Osborne County, KSKS3,28544.0+3%

134St. Clair County, MOMO9,97643.9+4%

135Transylvania County, NCNC34,21143.9+14%

136Cottle County, TXTX1,22443.9+6%

137Haskell County, TXTX5,49943.9+8%

138Hinsdale County, COCO75343.9+13%

139Ness County, KSKS2,61743.9+15%

140Eddy County, NDND2,32943.8+9%

141Boyd County, NENE1,67443.8+6%

142De Baca County, NMNM1,64743.8+6%

143Lincoln County, NMNM19,84443.8+17%

144Kerr County, TXTX54,03743.8+7%

145Marion County, FLFL442,66043.8+9%

146Clallam County, WAWA78,20243.8+14%

147Cleburne County, ARAR25,67243.7+6%

148Sierra County, CACA3,09843.7−0%

149Oscoda County, MIMI8,72343.7+8%

150Stonewall County, TXTX1,18643.7+15%

151San Juan County, COCO81343.7+30%

152Lincoln County, KSKS2,86143.7+4%

153Big Stone County, MNMN5,05443.6+7%

154Hitchcock County, NENE2,46743.6+16%

155Hand County, SDSD3,12143.6+13%

156Renville County, NDND2,33143.6+18%

157Ozark County, MOMO9,17243.6+4%

158Manatee County, FLFL468,20043.6+1%

159Washington County, KSKS5,53343.6+6%

160Deuel County, NENE1,86243.5+14%

161Dundy County, NENE1,56843.5+12%

162Furnas County, NENE4,52443.5+4%

163Rock County, NENE1,25943.5+19%

164Valley County, NENE4,09443.5+8%

165Tillamook County, OROR27,38443.5+6%

166Valley County, IDID12,83143.5+17%

167Trego County, KSKS2,74043.5+13%

168Lac qui Parle County, MNMN6,70443.4+10%

169Madison County, MTMT10,02643.4+15%

170Bottineau County, NDND6,28443.4+15%

171Summers County, WVWV11,53243.4+17%

172Ouray County, COCO5,26543.4+9%

173Gosper County, NENE1,80343.4+7%

174Talbot County, MDMD38,23843.3+9%

175Sherman County, NENE2,92443.3+11%

176LaMoure County, NDND4,13543.3+12%

177Marion County, TXTX9,89643.3+9%

178Trinity County, TXTX14,38443.3+4%

179Dickinson County, IAIA18,07743.3+10%

180Coke County, TXTX3,41243.3+1%

181Musselshell County, MTMT5,58243.2+10%

182Custer County, SDSD9,43143.2+17%

183Kinney County, TXTX3,12843.2+10%

184Sedgwick County, COCO2,24743.2+6%

185Ringgold County, IAIA4,64243.2+2%

186Stone County, ARAR12,70343.1+10%

187Nevada County, CACA101,91143.1+9%

188Lake County, MIMI13,18243.1+7%

189Brown County, NENE2,82643.1+10%

190Harper County, OKOK3,17243.1+11%

191Coos County, OROR63,99243.1+15%

192Josephine County, OROR87,86743.1+8%

193Hutchinson County, SDSD7,41343.1+4%

194Perkins County, SDSD2,85343.1+10%

195Hamilton County, TXTX8,68043.1−1%

196Kimble County, TXTX4,43843.1+1%

197McMullen County, TXTX54443.1+16%

198Fannin County, GAGA26,11143.1+11%

199Fulton County, ARAR12,49243.0+6%

200Worcester County, MDMD54,45943.0+13%

201Lincoln County, MNMN5,58343.0+5%

202Knox County, NENE8,33543.0+6%

203Alleghany County, NCNC11,47943.0+9%

204Bowman County, NDND2,76243.0+16%

205McHenry County, NDND5,13043.0+9%

206Dewey County, OKOK4,20743.0+12%

207Sullivan County, PAPA5,85643.0+13%

208Wood County, TXTX49,68843.0+8%

209Johnson County, WYWY8,90843.0+15%

210Siskiyou County, CACA42,01343.0+16%

211Pinellas County, FLFL948,56343.0+2%

212Monona County, IAIA8,53943.0+4%

213Wayne County, IAIA6,73843.0+3%

214Coleman County, TXTX7,91543.0+3%

215Garfield County, WAWA2,41643.0+5%

216Mohave County, AZAZ228,10242.9+7%

217Mariposa County, CACA16,91842.9+9%

218Gogebic County, MIMI14,28542.9+8%

219Lake County, MNMN10,74642.9+10%

220Traverse County, MNMN3,13042.9+4%

221Jefferson County, NENE7,07042.9+8%

222Mineral County, NVNV4,40742.9+26%

223Nye County, NVNV57,33642.9+17%

224Pamlico County, NCNC12,75842.9+13%

225Pierce County, NDND3,83842.9+7%

226Day County, SDSD5,48442.9+9%

227Fisher County, TXTX3,69242.9+8%

228Tuolumne County, CACA53,16042.9+15%

229Baca County, COCO3,34742.9+10%

230Harper County, KSKS5,37042.9+9%

231Loup County, NENE57042.9+9%

232Door County, WIWI30,61642.9+18%

233Inyo County, CACA18,15842.8+10%

234Mackinac County, MIMI11,23642.8+15%

235Granite County, MTMT3,65842.8+9%

236Meagher County, MTMT2,13742.8+14%

237Franklin County, NENE2,79542.8+2%

238Kimball County, NENE3,39142.8+14%

239Gilliam County, OROR1,97142.8+13%

240Walworth County, SDSD5,21742.8+7%

241Nelson County, VAVA14,92042.8+15%

242Westmoreland County, VAVA19,71542.8+11%

243Niobrara County, WYWY2,34142.8+12%

244Donley County, TXTX3,21342.8+3%

245Lincoln County, WAWA11,98242.8+9%

246Amador County, CACA41,87642.7+13%

247Lake County, CACA67,77242.7+5%

248Baker County, OROR16,65842.7+12%

249Lake County, OROR8,18742.7+18%

250Kingsbury County, SDSD5,28442.7+7%

251Aransas County, TXTX26,14642.7+12%

252Lemhi County, IDID8,47442.7+12%

253Henderson County, NCNC122,37542.7+4%

254Izard County, ARAR14,40542.6−3%

255Leelanau County, MIMI22,98242.6+17%

256Morgan County, MOMO22,41842.6+1%

257Fayette County, TXTX25,45942.6+7%

258Rappahannock County, VAVA7,43942.6+14%

259Greenwood County, KSKS5,82642.6+3%

260Barber County, KSKS4,08342.6+13%

261Monroe County, FLFL80,40642.6+9%

262Gove County, KSKS2,63142.6+12%

263Lincoln County, MEME36,59542.6+14%

264Chariton County, MOMO7,37742.5+9%

265Garland County, ARAR99,69542.5+4%

266Grant County, MNMN6,08542.5+5%

267Wayne County, MOMO10,78242.5+6%

268Hayes County, NENE82142.5+12%

269Carroll County, NHNH52,78442.5+15%

270Slope County, NDND62842.5+22%

271Miner County, SDSD2,28142.5+9%

272Jeff Davis County, TXTX1,71142.5+10%

273Cumberland County, TNTN66,30042.5+13%

274Lewis County, IDID3,70442.5+17%

275Pocahontas County, IAIA6,81942.5+9%

276Phillips County, KSKS4,72842.5+4%

277Wheeler County, TXTX4,77342.5+11%

278Faribault County, MNMN13,88842.4+10%

279Kittson County, MNMN4,03142.4+10%

280Murray County, MNMN7,94242.4+11%

281Mercer County, MOMO3,40442.4−1%

282Fergus County, MTMT11,82542.4+13%

283McCone County, MTMT1,72042.4+18%

284Johnson County, NENE5,21842.4+5%

285Northampton County, VAVA11,87942.4+12%

286Dolores County, COCO2,46642.4+16%

287Volusia County, FLFL606,57342.4+7%

288Audubon County, IAIA5,50942.4+5%

289Calhoun County, IAIA9,56242.4+7%

290Columbia County, WAWA4,14142.4+9%

291Oneida County, WIWI38,13142.4+10%

292Gila County, AZAZ53,80142.3+9%

293Searcy County, ARAR7,84842.3+6%

294Delta County, COCO32,17842.3+3%

295Gladwin County, MIMI26,07742.3+15%

296Ogemaw County, MIMI21,12142.3+15%

297Deer Lodge County, MTMT9,70942.3+11%

298Wibaux County, MTMT88542.3+14%

299Carteret County, NCNC70,46942.3+18%

300Alfalfa County, OKOK5,64942.3+5%

301Idaho County, IDID17,87442.3+16%

302Cape May County, NJNJ93,39042.3+12%

303Haywood County, NCNC63,36942.3+6%

304Cass County, MNMN31,43042.2+11%

305Brunswick County, NCNC174,70242.2+14%

306Perquimans County, NCNC13,49042.2+12%

307Hyde County, SDSD1,19142.2+9%

308Cedar County, MOMO14,88842.2+1%

309Burt County, NENE6,67842.2+9%

310Pope County, MNMN11,42042.1+10%

311Lincoln County, MTMT22,32842.1+19%

312Powder River County, MTMT1,78142.1+15%

313Ashe County, NCNC27,51442.1+9%

314Leon County, TXTX16,89442.1+11%

315San Augustine County, TXTX7,72242.1+3%

316Bayfield County, WIWI16,78742.1+13%

317Sawyer County, WIWI18,84642.1+10%

318Waushara County, WIWI25,22342.1+9%

319Costilla County, COCO3,67942.1+19%

320Hardin County, ILIL3,58842.1+13%

321Sac County, IAIA9,52542.1+12%

322Clark County, KSKS1,90042.1+3%

323Kiowa County, KSKS2,43242.1+10%

324Piscataquis County, MEME17,40942.1+19%

325Chase County, NENE3,71842.1+14%

326Washburn County, WIWI17,08742.1+11%

327St. Lucie County, FLFL402,44942.0+10%

328Rabun County, GAGA17,76442.0+4%

329Mitchell County, NCNC15,06242.0+8%

330Oliver County, NDND1,89842.0+25%

331Terrell County, TXTX70242.0+20%

332Tucker County, WVWV6,54042.0+12%

333Quitman County, GAGA2,25442.0+17%

334Judith Basin County, MTMT2,16242.0+9%

335Sheridan County, NENE4,80942.0+10%

336White County, ILIL13,25042.0+10%

337Morris County, KSKS5,34842.0+6%

338Roberts County, TXTX86742.0+19%

339Putnam County, MOMO4,54641.9−1%

340Worth County, MOMO1,91441.9−2%

341Carbon County, MTMT11,46641.9+7%

342Keya Paha County, NENE79241.9+7%

343Yancey County, NCNC19,08441.9+11%

344Billings County, NDND1,07141.9+26%

345Campbell County, SDSD1,37741.9+7%

346Lavaca County, TXTX20,65141.9+8%

347Pocahontas County, WVWV7,60241.9+9%

348Florence County, WIWI4,74841.9+16%

349Clay County, GAGA2,81541.9+22%

350Adams County, IAIA3,61741.9+4%

351Guthrie County, IAIA10,78241.9+4%

352Pend Oreille County, WAWA14,45741.9+16%

353Modoc County, CACA8,42641.8+12%

354Hubbard County, MNMN22,36941.8+11%

355Holt County, MOMO4,20041.8+9%

356Carter County, MTMT1,38341.8+11%

357Logan County, NENE66941.8+25%

358Sherman County, OROR2,05141.8+11%

359Douglas County, SDSD2,88841.8+13%

360Throckmorton County, TXTX1,55441.8+4%

361Bath County, VAVA4,07641.8+7%

362Chaffee County, COCO20,83141.8+12%

363Palm Beach County, FLFL1,575,72641.8+5%

364Shoshone County, IDID14,13041.8+12%

365Adair County, IAIA7,40341.8+6%

366Ellsworth County, KSKS6,25741.8+10%

367Treasure County, MTMT72841.8+15%

368Moore County, NCNC110,61941.8+8%

369Dade County, MOMO7,80441.7+8%

370Clearwater County, IDID9,11841.7+10%

371Cottonwood County, MNMN11,40541.7+6%

372Atchison County, MOMO5,17541.7+9%

373Harrison County, MOMO8,28141.7−2%

374Douglas County, NVNV50,11141.7+15%

375Roger Mills County, OKOK3,25941.7+16%

376Grant County, OROR7,07541.7+15%

377Bosque County, TXTX18,91841.7+1%

378Hancock County, WVWV27,72941.7+10%

379Price County, WIWI13,98841.7+13%

380Greeley County, NENE2,15441.7+14%

381Huerfano County, COCO7,01141.7+6%

382Cherokee County, IAIA11,36941.7+12%

383Marshall County, KSKS9,85241.7+8%

384Valley County, MTMT7,38541.7+14%

385Foard County, TXTX1,04441.7+1%

386Taylor County, IAIA5,83541.6+5%

387Lane County, KSKS1,50841.6+10%

388Lake of the Woods County, MNMN3,77041.6+17%

389Knox County, MOMO3,72841.6+1%

390Garfield County, MTMT1,14841.6+17%

391Pembina County, NDND6,56841.6+13%

392Major County, OKOK7,53641.6+12%

393Clark County, SDSD4,03141.6+7%

394Edmunds County, SDSD4,02241.6+3%

395Marshall County, SDSD4,42641.6+7%

396Benton County, TNTN16,18341.6+8%

397Pickett County, TNTN5,21941.6+10%

398Greenbrier County, WVWV31,57841.6+11%

399Jefferson County, OHOH63,59741.6+10%

400Polk County, NENE5,27041.6+7%

401Jo Daviess County, ILIL21,59441.6+15%

402Cass County, IAIA12,96041.6+8%

403Montgomery County, ARAR8,57941.5+3%

404Manistee County, MIMI25,65641.5+9%

405Koochiching County, MNMN11,58741.5+17%

406Martin County, MNMN19,44041.5+12%

407Golden Valley County, MTMT84441.5+13%

408Sioux County, NENE1,18841.5+10%

409Coos County, NHNH31,34341.5+14%

410Quay County, NMNM8,45441.5+14%

411Graham County, NCNC8,19041.5+13%

412Faulk County, SDSD2,17841.5+6%

413Hood County, TXTX70,50141.5+13%

414Liberty County, MTMT1,95741.5+22%

415Unicoi County, TNTN17,85641.5+10%

416Ida County, IAIA6,77741.5+12%

417Sheridan County, KSKS2,42741.5+10%

418Lyon County, KYKY9,12341.5+8%

419Knox County, MEME41,11741.4+12%

420Schoolcraft County, MIMI8,18741.4+10%

421Wheatland County, MTMT2,10041.4+7%

422Fillmore County, NENE5,45841.4+8%

423Delaware County, NYNY44,30541.4+16%

424Steele County, NDND1,79741.4+5%

425Grant County, OKOK4,06741.4+6%

426Richardson County, NENE7,53041.4+5%

427Brevard County, FLFL663,98241.4+14%

428Wright County, IAIA12,80141.4+6%

429Cloud County, KSKS8,83341.4+6%

430Scott County, VAVA21,20041.4+8%

431Marin County, CACA253,69441.3+8%

432Calhoun County, WVWV5,97841.3+16%

433Cheboygan County, MIMI25,79341.3+11%

434Broadwater County, MTMT8,49341.3+13%

435Custer County, NENE10,50041.3+5%

436Marshall County, OKOK16,25541.3+1%

437Cameron County, PAPA4,21141.3+10%

438Haakon County, SDSD1,80241.3+30%

439Montague County, TXTX21,96641.3+5%

440Windsor County, VTVT57,31241.3+15%

441Grundy County, MOMO9,74441.3+5%

442Eastland County, TXTX18,14341.3+7%

443Bristol, VAVA16,41841.3+9%

444Bandera County, TXTX22,87641.3+4%

445Butler County, IAIA14,04941.3+9%

446Franklin County, IAIA9,86841.3+9%

447Humboldt County, IAIA9,40941.3+7%

448Kossuth County, IAIA14,32241.3+13%

449Clay County, KSKS7,99041.3+4%

450Kent County, MDMD19,56541.3+13%

451Westmoreland County, PAPA349,32441.3+9%

452Custer County, IDID4,63641.2+19%

453Caldwell County, KYKY12,60941.2+9%

454Alger County, MIMI8,64141.2+12%

455Huron County, MIMI30,53041.2+15%

456Douglas County, OROR111,95141.2+15%

457Cambria County, PAPA128,96841.2+10%

458Decatur County, TNTN11,82041.2+6%

459Blanco County, TXTX13,58141.2+7%

460Brooke County, WVWV21,14241.2+10%

461Platte County, WYWY8,63441.2+14%

462Golden Valley County, NDND1,80841.2+15%

463Fremont County, IAIA6,52241.2+7%

464Sweet Grass County, MTMT3,76241.2+4%

465Hardeman County, TXTX3,29241.2+5%

466Antrim County, MIMI24,69841.1+12%

467Itasca County, MNMN45,40441.1+14%

468Otter Tail County, MNMN61,04141.1+10%

469Fallon County, MTMT2,95941.1+17%

470Mineral County, MTMT5,18541.1+14%

471Petroleum County, MTMT54841.1+15%

472Ravalli County, MTMT48,58241.1+9%

473Keith County, NENE8,10041.1+13%

474Harrison County, OHOH14,07041.1+12%

475McCormick County, SCSC10,21541.1+26%

476Jones County, SDSD91341.1+12%

477Alleghany County, VAVA14,54641.1+10%

478Pendleton County, WVWV5,82641.1+12%

479Sussex County, DEDE277,14041.1+12%

480Levy County, FLFL48,52041.1+6%

481Pope County, ILIL3,67241.1+15%

482Jefferson County, IAIA15,29141.1+11%

483Mitchell County, KSKS5,59041.1+10%

484Oregon County, MOMO8,70941.0+1%

485Dawson County, MTMT8,69241.0+15%

486Ottawa County, OHOH39,48141.0+12%

487Loudon County, TNTN63,76441.0+13%

488Rains County, TXTX13,54241.0+7%

489Henderson County, ILIL5,98441.0+9%

490Greene County, IAIA8,65841.0+4%

491Ocean County, NJNJ673,74641.0+6%

492Edwards County, KSKS2,64041.0+3%

493Marion County, KSKS11,63441.0+5%

494Stafford County, KSKS4,00541.0+7%

495Hickman County, KYKY4,37240.9+5%

496Norman County, MNMN6,33640.9+6%

497Walsh County, NDND10,17940.9+13%

498Belmont County, OHOH64,43440.9+8%

499Kiowa County, OKOK8,18140.9+7%

500Schuylkill County, PAPA145,08540.9+6%

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 median age?

Kalawao County, Hawaii ranks #1 with 58.6 (2000 Decennial Census).

What are the top 5 counties by median age?

Kalawao County, Hawaii, Charlotte County, Florida, Llano County, Texas, Citrus County, Florida, McIntosh County, North Dakota.

How many counties are in this ranking?

3,125 counties qualify after filtering for population minimums and data availability. The ranking covers 2000 Decennial Census data.

How is median age measured?

Median age of all residents. Source: US Census Bureau, 2000 Decennial Census.