RANKING · 2024 ACS · 500 SHOWN OF 3,144

Oldest housing stock, US counties

US counties ranked by oldest median year of construction (2024 ACS). St. Louis, Missouri leads at 1938. 3,144 counties qualify in total. Kansas carries 7 of the top 25 entries.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2010 2020 2024

RANKPLACESTATEPOPMEDIAN YEAR BUILTVS 1990

USUnited States334,922,4991980–

01St. Louis, MOMO278,1441938−0%

02Loving County, TXTX521938−1%

03Kalawao County, HIHI821938−0%

04Lincoln County, KSKS2,8611938−0%

05Franklin County, NENE2,7951940+0%

06Kings County, NYNY2,653,9631944+0%

07Montgomery County, NYNY50,0461944+0%

08Deuel County, NENE1,8621945+0%

09Jewell County, KSKS2,8301945+0%

10Republic County, KSKS4,6401945+0%

11San Francisco County, CACA826,0791946+0%

12Hayes County, NENE8211946+0%

13Schuylkill County, PAPA145,0851946+0%

14Greeley County, NENE2,1541946+0%

15Clark County, KSKS1,9001946+0%

16Baltimore, MDMD569,9971947+0%

17Comanche County, KSKS1,6731947+0%

18Dundy County, NENE1,5681948+0%

19Nuckolls County, NENE4,1001948+0%

20Worth County, IAIA7,3381948+0%

21Edwards County, KSKS2,6401948+0%

22Rush County, KSKS2,8451948+0%

23Suffolk County, MAMA791,8911949+1%

24Furnas County, NENE4,5241949+1%

25Shelby County, IAIA11,6891949+0%

26Philadelphia County, PAPA1,574,2811949+1%

27Dixon County, NENE5,6021950+1%

28Hitchcock County, NENE2,4671950+0%

29Nemaha County, NENE7,1021950+0%

30Richardson County, NENE7,5301950+1%

31Audubon County, IAIA5,5091950+1%

32Keokuk County, IAIA9,7971950+1%

33Pocahontas County, IAIA6,8191950+0%

34Nance County, NENE3,2901950+1%

35Perkins County, NENE2,8491951+0%

36Taylor County, IAIA5,8351951+1%

37Lac qui Parle County, MNMN6,7041951+1%

38Webster County, NENE3,3361951+1%

39New York County, NYNY1,664,8621951+0%

40Covington, VAVA5,6801951+0%

41Sheridan County, NENE4,8091951+0%

42Cheyenne County, KSKS2,6041951+0%

43Stafford County, KSKS4,0051951+1%

44Faribault County, MNMN13,8881952+0%

45Kimball County, NENE3,3911952+0%

46Pawnee County, NENE2,5101952+1%

47Osborne County, KSKS3,2851952+0%

48Ida County, IAIA6,7771952+1%

49Decatur County, KSKS2,7161953+0%

50Boyd County, NENE1,6741953+1%

51Garden County, NENE1,8041953+1%

52Johnson County, NENE5,2181953+1%

53Chautauqua County, NYNY124,1261953+1%

54Queens County, NYNY2,358,1821953+0%

55McKean County, PAPA38,9841953+1%

56Hamilton County, IAIA14,9441953+0%

57Cloud County, KSKS8,8331953+1%

58Rice County, KSKS9,2661953+0%

59Rooks County, KSKS4,6461953+0%

60Washington County, KSKS5,5331953+1%

61Columbia County, WAWA4,1411953+0%

62Deer Lodge County, MTMT9,7091954+1%

63Clay County, NENE6,1701954+1%

64Fulton County, NYNY52,2161954+1%

65Otsego County, NYNY60,5891954+1%

66Northumberland County, PAPA89,9201954+1%

67Miner County, SDSD2,2811954+1%

68Greene County, IAIA8,6581954+1%

69Sedgwick County, COCO2,2471954+1%

70Benton County, ININ8,8831954+0%

71Rush County, ININ16,7671954+1%

72Fayette County, IAIA19,0471954+1%

73Franklin County, IAIA9,8681954+1%

74Harrison County, IAIA14,6231954+1%

75Page County, IAIA14,8561954+1%

76Smith County, KSKS3,5661954+1%

77Herkimer County, NYNY59,2191954+1%

78Chemung County, NYNY80,4151955+0%

79Gogebic County, MIMI14,2851955+1%

80Hooker County, NENE6861955+0%

81Jefferson County, NENE7,0701955+1%

82Bronx County, NYNY1,406,3321955+0%

83Orleans County, NYNY39,8251955+1%

84Lackawanna County, PAPA216,5021955+1%

85McIntosh County, NDND2,4511955+0%

86Nassau County, NYNY1,398,9391955+0%

87Ford County, ILIL13,2161955+0%

88Adams County, IAIA3,6171955+1%

89Emmet County, IAIA9,1071955+0%

90Osceola County, IAIA5,9801955+1%

91McPherson County, NENE3691955−0%

92Wayne County, MIMI1,769,0381956+0%

93Berkshire County, MAMA128,2241956+1%

94Pipestone County, MNMN9,2601956+0%

95Silver Bow County, MTMT36,1181956+1%

96Frontier County, NENE2,6551956+1%

97Logan County, NENE6691956+1%

98Sioux County, NENE1,1881956+1%

99Thayer County, NENE4,8421956+1%

100Passaic County, NJNJ531,6241956+0%

101Union County, NJNJ601,8631956+0%

102Genesee County, NYNY58,4161956+0%

103Schenectady County, NYNY162,5811956+1%

104Cambria County, PAPA128,9681956+1%

105Providence County, RIRI678,1791956+0%

106Hanson County, SDSD3,4561956+1%

107Ohio County, WVWV40,4961956+1%

108Greenwood County, KSKS5,8261956+1%

109Barber County, KSKS4,0831956+1%

110Stark County, ILIL5,3191956+1%

111Warren County, ILIL16,2221956+0%

112Cass County, ININ37,8361956+0%

113Cass County, IAIA12,9601956+1%

114Hardin County, IAIA16,4551956+0%

115Monona County, IAIA8,5391956+1%

116Dickinson County, KSKS18,6371956+1%

117Elk County, KSKS2,4581956+1%

118Harper County, KSKS5,3701956+1%

119Kingman County, KSKS7,0291956+1%

120Pawnee County, KSKS5,9911956+0%

121Pratt County, KSKS9,1171956+0%

122Rawlins County, KSKS2,4311956+1%

123Burt County, NENE6,6781956+1%

124Carroll County, ILIL15,4191957+1%

125Chippewa County, MNMN12,4061957+0%

126Atchison County, MOMO5,1751957+1%

127Prairie County, MTMT1,1121957+0%

128Boone County, NENE5,3551957+1%

129Erie County, NYNY946,7411957+0%

130Cuyahoga County, OHOH1,232,9251957+0%

131Allegheny County, PAPA1,225,0351957+0%

132Beaver County, PAPA166,0321957+0%

133Blair County, PAPA119,5411957+1%

134Delaware County, PAPA580,9371957+0%

135Bristol County, RIRI50,0011957+0%

136Clark County, SDSD4,0311957+1%

137Kenedy County, TXTX3191957−0%

138Terrell County, TXTX7021957+0%

139Mitchell County, IAIA10,6501957+1%

140Golden Valley County, NDND1,8081957+0%

141Lawrence County, PAPA83,9111957+0%

142Greene County, ILIL11,3131957+0%

143Knox County, ILIL47,7671957+0%

144Vermilion County, ILIL71,2591957+0%

145Clinton County, ININ33,3221957+1%

146Clinton County, IAIA46,0021957+0%

147Sac County, IAIA9,5251957+1%

148Tama County, IAIA16,7961957+1%

149Webster County, IAIA36,8381957+0%

150Bourbon County, KSKS14,3191957+0%

151Graham County, KSKS2,3711957+0%

152Hodgeman County, KSKS1,6191957+1%

153Marion County, KSKS11,6341957+0%

154Norton County, KSKS5,2881957+1%

155Russell County, KSKS6,5811957+0%

156Milwaukee County, WIWI924,2161957+0%

157Cheyenne County, NENE9,5281957+0%

158Morrill County, NENE4,4041957+1%

159Garfield County, WAWA2,4161957+1%

160Griggs County, NDND2,2391958+0%

161Lane County, KSKS1,5081958+0%

162Mower County, MNMN40,9711958+0%

163Swift County, MNMN9,7631958+1%

164Yellow Medicine County, MNMN9,4771958+1%

165Daniels County, MTMT1,6121958+1%

166Wheatland County, MTMT2,1001958+1%

167Cuming County, NENE8,8231958+1%

168Custer County, NENE10,5001958+1%

169Dawes County, NENE7,8581958+0%

170Essex County, NJNJ896,3791958+0%

171Broome County, NYNY195,7361958+0%

172Cayuga County, NYNY74,3651958+1%

173Niagara County, NYNY208,9121958+0%

174Oneida County, NYNY226,3921958+1%

175Bon Homme County, SDSD7,2441958+1%

176Jerauld County, SDSD1,6541958+1%

177Sanborn County, SDSD2,3881958+1%

178Runnels County, TXTX9,6931958+0%

179McDowell County, WVWV16,8781958+0%

180Jefferson County, OHOH63,5971958+0%

181Pierce County, NENE7,3781958+1%

182Otero County, COCO17,6831958+0%

183Washington County, COCO4,7321958+0%

184District of Columbia, DCDC693,6451958+1%

185Bureau County, ILIL32,5101958+1%

186De Witt County, ILIL15,1181958+0%

187Randolph County, ININ24,4381958+1%

188Adair County, IAIA7,4031958+1%

189Butler County, IAIA14,0491958+1%

190Calhoun County, IAIA9,5621958+1%

191Cherokee County, IAIA11,3691958+1%

192Floyd County, IAIA14,9011958+0%

193Fremont County, IAIA6,5221958+1%

194Marshall County, IAIA39,8901958+0%

195Palo Alto County, IAIA8,8991958+0%

196Wapello County, IAIA35,2101958+1%

197Chase County, KSKS2,5721958+1%

198Ellsworth County, KSKS6,2571958+1%

199Gove County, KSKS2,6311958+0%

200Labette County, KSKS19,6851958+0%

201Mitchell County, KSKS5,5901958+1%

202Montgomery County, KSKS30,1771958+1%

203Foard County, TXTX1,0441958+1%

204Martinsville, VAVA13,8491958−0%

205Roanoke, VAVA99,1111958+0%

206Hampden County, MAMA464,3381959+0%

207Big Stone County, MNMN5,0541959+1%

208Freeborn County, MNMN30,4401959+0%

209Jackson County, MNMN9,8571959+1%

210Lincoln County, MNMN5,5831959+1%

211Norman County, MNMN6,3361959+1%

212Renville County, MNMN14,3561959+0%

213Banner County, NENE6861959+1%

214Brown County, NENE2,8261959+0%

215Fillmore County, NENE5,4581959+1%

216Seneca County, NYNY32,8831959+0%

217Crawford County, OHOH41,8961959+0%

218Seneca County, OHOH54,5221959+1%

219Alfalfa County, OKOK5,6491959+1%

220Armstrong County, PAPA63,6981959+0%

221Cameron County, PAPA4,2111959+1%

222Venango County, PAPA49,3461959+0%

223Warren County, PAPA37,0381959+0%

224Spink County, SDSD6,1551959+1%

225Carson County, TXTX5,8051959−0%

226Hall County, TXTX2,7371959+0%

227Emporia, VAVA5,4471959−0%

228Hancock County, WVWV27,7291959+0%

229Wabash County, ININ30,7131959+0%

230Des Moines County, IAIA38,0771959+1%

231Red Willow County, NENE10,3071959+0%

232Richmond, VAVA237,2571959+0%

233Bent County, COCO5,7161959+1%

234Greater Bridgeport Planning Region, CTCT337,6971959–

235Shoshone County, IDID14,1301959+0%

236Mason County, ILIL12,4111959+0%

237Jay County, ININ20,1181959+0%

238Cerro Gordo County, IAIA42,3721959+0%

239Montgomery County, IAIA10,0021959+1%

240O'Brien County, IAIA14,2201959+1%

241Woodbury County, IAIA106,6491959+1%

242Barton County, KSKS24,7901959+0%

243Logan County, KSKS2,6611959+0%

244Marshall County, KSKS9,8521959+1%

245Meade County, KSKS3,8521959+0%

246Ness County, KSKS2,6171959+1%

247Scott County, KSKS4,8151959+0%

248Allegany County, MDMD66,8481959+1%

249Lexington, VAVA7,7691959+0%

250Westchester County, NYNY1,015,7431959+0%

251Fayette County, PAPA123,0211959+1%

252Blackford County, ININ11,7301960+0%

253Orleans Parish, LALA362,1541960+0%

254Essex County, MAMA826,6531960+1%

255Houghton County, MIMI37,8421960+1%

256Martin County, MNMN19,4401960+1%

257Rock County, MNMN9,5241960+0%

258Antelope County, NENE6,3521960+1%

259Grant County, NENE5611960+1%

260Bergen County, NJNJ977,0261960+0%

261Harding County, NMNM6171960+1%

262Cattaraugus County, NYNY75,3901960+1%

263Sandusky County, OHOH58,6551960+0%

264Woods County, OKOK8,4431960+0%

265Sherman County, OROR2,0511960+1%

266Greene County, PAPA33,8851960+1%

267Mifflin County, PAPA46,1271960+0%

268Campbell County, SDSD1,3771960+1%

269Douglas County, SDSD2,8881960+1%

270Hyde County, SDSD1,1911960+1%

271Cottle County, TXTX1,2241960+0%

272Van Wert County, OHOH29,0131960+1%

273Polk County, NENE5,2701960+1%

274Brown County, ILIL6,4011960+1%

275Fulton County, ILIL32,9011960+1%

276Iroquois County, ILIL26,1501960+0%

277Lee County, ILIL32,9141960+1%

278Stephenson County, ILIL43,2201960+0%

279Wayne County, ININ66,1691960+0%

280Boone County, IAIA26,7991960+1%

281Clayton County, IAIA16,8451960+1%

282Howard County, IAIA9,4151960+1%

283Lee County, IAIA32,3061960+1%

284Wright County, IAIA12,8011960+1%

285Morris County, KSKS5,3481960+0%

286Luzerne County, PAPA332,1261960+1%

287Wyoming County, NYNY39,7411960+1%

288Cook County, ILIL5,194,6251961+0%

289Carroll County, MOMO8,4171961+1%

290Calhoun County, MIMI133,4081961+0%

291Keweenaw County, MIMI2,1861961+1%

292Worth County, MOMO1,9141961+1%

293Gage County, NENE21,7111961+0%

294Thomas County, NENE6391961+0%

295Valley County, NENE4,0941961+1%

296Union County, NMNM3,8441961+0%

297Cortland County, NYNY45,8501961+1%

298Slope County, NDND6281961+1%

299Gilliam County, OROR1,9711961+0%

300Elk County, PAPA29,9261961+0%

301Gray County, TXTX20,9191961+0%

302Mitchell County, TXTX8,9471961−0%

303Swisher County, TXTX6,7031961+0%

304Throckmorton County, TXTX1,5541961+0%

305Danville, VAVA41,6471961+0%

306Marion County, WVWV55,5841961+0%

307Marshall County, WVWV29,1591961+0%

308Motley County, TXTX1,0431961+1%

309Henry County, ILIL48,0951961+0%

310Livingston County, ILIL35,0571961+0%

311Marshall County, ILIL11,4731961+0%

312Pike County, ILIL14,2311961+1%

313Whiteside County, ILIL54,1211961+0%

314Henry County, ININ49,1371961+0%

315Miami County, ININ34,4871961+0%

316Hancock County, IAIA10,5281961+0%

317Humboldt County, IAIA9,4091961+1%

318Chautauqua County, KSKS3,3211961+1%

319Cowley County, KSKS34,3821961+1%

320Phillips County, KSKS4,7281961+1%

321Wallace County, KSKS1,4411961+0%

322Collingsworth County, TXTX2,4871961+0%

323Hardeman County, TXTX3,2921961+0%

324Jefferson County, PAPA43,2551961+0%

325Grant County, NDND2,2061962+0%

326Dickens County, TXTX1,6921962+0%

327Teton County, MTMT6,4961962+1%

328Union County, IAIA11,8291962+1%

329Franklin County, MAMA70,6981962+1%

330Middlesex County, MAMA1,669,9791962+1%

331Iron County, MIMI11,7571962+1%

332St. Louis County, MNMN200,5181962+1%

333Traverse County, MNMN3,1301962+1%

334Watonwan County, MNMN11,4591962+1%

335Sherman County, NENE2,9241962+1%

336Rensselaer County, NYNY160,5101962+1%

337Ashtabula County, OHOH96,7131962+0%

338Wyandot County, OHOH21,5671962+1%

339Kiowa County, OKOK8,1811962+0%

340Aurora County, SDSD2,8011962+1%

341Hutchinson County, SDSD7,4131962+1%

342McPherson County, SDSD2,3471962+1%

343Turner County, SDSD9,3141962+1%

344Wetzel County, WVWV13,7341962+0%

345Niobrara County, WYWY2,3411962+1%

346Blaine County, NENE4581962+1%

347Salem County, NJNJ66,2801962+0%

348Rock Island County, ILIL141,8691962+0%

349Mercer County, ILIL15,2291962+1%

350White County, ILIL13,2501962+0%

351Fayette County, ININ23,5331962+0%

352Knox County, ININ35,6521962+1%

353Vermillion County, ININ15,4881962+1%

354Grundy County, IAIA12,3611962+1%

355Kossuth County, IAIA14,3221962+1%

356Lucas County, IAIA8,8471962+1%

357Winnebago County, IAIA10,2511962+0%

358Winneshiek County, IAIA19,7331962+1%

359Clay County, KSKS7,9901962+1%

360Reno County, KSKS61,5391962+0%

361Sumner County, KSKS22,3121962+0%

362Woodson County, KSKS3,1181962+1%

363Wyandotte County, KSKS170,5971962+0%

364Floyd County, TXTX4,8811962+0%

365Staunton, VAVA26,8011962+0%

366Divide County, NDND2,1101963+1%

367Bay County, MIMI102,1231963+0%

368Ontonagon County, MIMI5,8231963+0%

369Brown County, MNMN25,5171963+1%

370Cottonwood County, MNMN11,4051963+1%

371Murray County, MNMN7,9421963+1%

372Sheridan County, MTMT3,4361963+0%

373Howard County, NENE6,5381963+1%

374Kearney County, NENE6,7901963+0%

375Steuben County, NYNY91,8551963+1%

376Nelson County, NDND2,9631963+1%

377Clark County, OHOH135,3401963+0%

378Darke County, OHOH51,5201963+0%

379Lucas County, OHOH423,3471963+0%

380Mahoning County, OHOH224,7061963+0%

381Marion County, OHOH65,1151963+0%

382Cimarron County, OKOK2,0591963+0%

383Tillman County, OKOK6,7801963+0%

384Mercer County, PAPA107,8601963+0%

385Newport County, RIRI83,0511963+0%

386Beadle County, SDSD19,6241963+1%

387Gregory County, SDSD4,0371963+1%

388Briscoe County, TXTX1,4741963+0%

389Childress County, TXTX6,6431963+0%

390Fisher County, TXTX3,6921963+0%

391Potter County, TXTX114,4531963+0%

392Lawrence County, ILIL13,7901963+1%

393Grundy County, MOMO9,7441963+0%

394Hamilton County, OHOH838,4181963+0%

395Washington County, NYNY59,3531963+1%

396Crowley County, COCO5,6771963+1%

397Christian County, ILIL33,4431963+1%

398Franklin County, ILIL36,9161963+1%

399LaSalle County, ILIL107,7731963+1%

400Scott County, ILIL4,8661963+1%

401Grant County, ININ66,5241963+0%

402Neosho County, KSKS15,6371963+1%

403Trego County, KSKS2,7401963+1%

404Lycoming County, PAPA112,5871963+1%

405Dawson County, TXTX11,7761963+0%

406Dickey County, NDND4,8951964+0%

407Bristol County, MAMA593,6401964+1%

408Norfolk County, MAMA739,7491964+1%

409Sibley County, MNMN15,3561964+1%

410Buchanan County, MOMO83,5401964+1%

411Linn County, MOMO11,8151964+1%

412Schuyler County, MOMO4,1401964+0%

413McCone County, MTMT1,7201964+0%

414Cedar County, NENE8,3731964+1%

415Garfield County, NENE1,7101964+1%

416Saline County, NENE14,9961964+1%

417Albany County, NYNY321,2251964+1%

418Madison County, NYNY67,1201964+1%

419Onondaga County, NYNY466,5841964+0%

420St. Lawrence County, NYNY105,4881964+1%

421Adams County, NDND2,2751964+0%

422Hettinger County, NDND2,4921964+1%

423Traill County, NDND7,9201964+1%

424Wells County, NDND3,7291964+0%

425Columbiana County, OHOH99,3771964+1%

426Harrison County, OHOH14,0701964+0%

427Henry County, OHOH27,5981964+1%

428Trumbull County, OHOH198,9721964+0%

429Harmon County, OKOK2,3271964+1%

430Kay County, OKOK43,4901964+0%

431Washita County, OKOK10,8841964+0%

432Erie County, PAPA265,8321964+1%

433Somerset County, PAPA72,0041964+0%

434Faulk County, SDSD2,1781964+1%

435Haskell County, TXTX5,4991964+0%

436Manitowoc County, WIWI81,7101964+1%

437Wabaunsee County, KSKS7,0181964+1%

438Crosby County, TXTX4,8521964+0%

439Kiowa County, COCO1,4121964+1%

440Logan County, COCO20,6541964+1%

441South Central Connecticut Planning Region, CTCT578,7411964–

442Edgar County, ILIL16,3231964+1%

443Hancock County, ILIL16,8031964+1%

444Logan County, ILIL27,1821964+0%

445Macon County, ILIL99,3001964+0%

446Montgomery County, ILIL28,0761964+1%

447Appanoose County, IAIA12,0771964+0%

448Benton County, IAIA26,0041964+1%

449Buena Vista County, IAIA20,4491964+1%

450Carroll County, IAIA20,3031964+1%

451Washington County, IAIA22,6671964+1%

452Anderson County, KSKS8,0181964+1%

453Brown County, KSKS9,1041964+1%

454Westmoreland County, PAPA349,3241964+0%

455Norfolk, VAVA231,0131964+0%

456Greer County, OKOK5,3731964+0%

457Emmons County, NDND3,2151965+1%

458Los Angeles County, CACA9,694,9341965+0%

459Ramsey County, MNMN541,6231965+0%

460Redwood County, MNMN15,2651965+1%

461Holt County, MOMO4,2001965+1%

462Knox County, MOMO3,7281965+0%

463Custer County, MTMT12,0341965+0%

464Harlan County, NENE3,0001965+0%

465Monroe County, NYNY750,5061965+0%

466LaMoure County, NDND4,1351965+1%

467Belmont County, OHOH64,4341965+1%

468Richland County, OHOH124,8931965+0%

469Harper County, OKOK3,1721965+0%

470Armstrong County, TXTX1,8431965+1%

471Hamilton County, TXTX8,6801965+0%

472Nolan County, TXTX14,1171965+0%

473Terry County, TXTX11,7201965+0%

474Harrison County, WVWV64,2211965+1%

475Crawford County, ILIL18,6481965+1%

476Wilbarger County, TXTX12,4811965+0%

477Sullivan County, MOMO5,7381965+0%

478Box Butte County, NENE10,4941965+0%

479Tipton County, ININ15,3191965+1%

480Lewis County, IDID3,7041965+0%

481Adams County, ILIL64,2671965+1%

482McDonough County, ILIL25,9161965+0%

483Morgan County, ILIL32,5151965+0%

484Madison County, ININ135,0881965+0%

485Cedar County, IAIA18,3591965+1%

486Jasper County, IAIA38,1531965+0%

487Mahaska County, IAIA21,8801965+1%

488Allen County, KSKS12,3021965+1%

489Wilson County, KSKS8,2991965+1%

490Chase County, NENE3,7181965+1%

491Eddy County, NDND2,3291966+1%

492Capitol Planning Region, CTCT994,1151966–

493Allegany County, NYNY46,8001966+1%

494Saline County, KSKS53,3771966+0%

495Berrien County, MIMI152,4441966+0%

496Gratiot County, MIMI41,1901966+1%

497Fillmore County, MNMN21,5401966+1%

498Grant County, MNMN6,0851966+1%

499Harrison County, MOMO8,2811966+1%

500Dawson County, MTMT8,6921966+0%

SHOWING 1–500 OF 3,144

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES

Frequently asked

Which county has the lowest median year built?

St. Louis, Missouri ranks #1 with 1938 (2024 American Community Survey).

What are the top 5 counties by median year built?

St. Louis, Missouri, Loving County, Texas, Kalawao County, Hawaii, Lincoln County, Kansas, Franklin County, Nebraska.

How many counties are in this ranking?

3,144 counties qualify after filtering for population minimums and data availability. The ranking covers 2024 ACS 5-year data.

How is median year built measured?

Median year that housing structures were built. Source: US Census Bureau, American Community Survey 5-year estimates (2024).