Which county has the lowest median year built?

San Francisco County, California ranks #1 with 1939 (1990 Decennial Census).

What are the top 5 counties by median year built?

San Francisco County, California, Taylor County, Iowa, Suffolk County, Massachusetts, Houghton County, Michigan, Keweenaw County, Michigan.

How many counties are in this ranking?

3,122 counties qualify after filtering for population minimums and data availability. The ranking covers 1990 Decennial Census data.

How is median year built measured?

Median year that housing structures were built. Source: US Census Bureau, 1990 Decennial Census.

RANKING · 1990 CENSUS · 500 SHOWN OF 3,122

Oldest housing stock, US counties · 1990

US counties ranked by oldest median year of construction (1990 ACS).

Flip the list · Newest housing stock, US counties →

All statesAll rankings

SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2010 2020 2024

RANKPLACESTATEPOPMEDIAN YEAR BUILTVS –

1001Codington County, SDSD29,5621961–

1002Davison County, SDSD20,0691961–

1003Jefferson County, TXTX254,3211961–

1004Karnes County, TXTX15,0181961–

1005Reeves County, TXTX12,1381961–

1006Stonewall County, TXTX1,1861961–

1007Winkler County, TXTX7,5401961–

1008Bennington County, VTVT36,6301961–

1009Orleans County, VTVT27,6001961–

1010Windsor County, VTVT57,3121961–

1011Whitman County, WAWA48,5121961–

1012Lewis County, WVWV16,3941961–

1013Summers County, WVWV11,5321961–

1014Wood County, WVWV82,3851961–

1015Randolph County, GAGA6,1561961–

1016Twin Falls County, IDID97,5391961–

1017Henderson County, ILIL5,9841961–

1018Lincoln County, WIWI28,4031961–

1019Taylor County, WIWI20,1181961–

1020Renville County, NDND2,3311961–

1021Waupaca County, WIWI51,4611961–

1022Sangamon County, ILIL194,1701961–

1023Randolph County, MOMO24,5131961–

1024Hennepin County, MNMN1,284,7841961–

1025Washington County, NENE21,3021961–

1026Conejos County, COCO7,5291961–

1027Kit Carson County, COCO7,0691961–

1028Taliaferro County, GAGA1,6621961–

1029Alexander County, ILIL4,5701961–

1030DeKalb County, ILIL101,8351961–

1031Marion County, ILIL36,3821961–

1032Pulaski County, ILIL4,8201961–

1033Randolph County, ILIL29,9211961–

1034Tazewell County, ILIL130,0491961–

1035Decatur County, ININ26,5761961–

1036Greene County, ININ31,1651961–

1037Howard County, ININ83,9041961–

1038Lawrence County, ININ45,5681961–

1039Parke County, ININ16,6421961–

1040Linn County, IAIA232,0281961–

1041Louisa County, IAIA10,4161961–

1042Scott County, IAIA175,2591961–

1043Haskell County, KSKS3,5991961–

1044Wallace County, KSKS1,4411961–

1045Penobscot County, MEME157,9671961–

1046Piscataquis County, MEME17,4091961–

1047Sagadahoc County, MEME37,9791961–

1048Somerset County, MEME51,6201961–

1049Gosper County, NENE1,8031961–

1050York County, PAPA473,1971961–

1051Giles County, VAVA16,5641961–

1052Union County, ARAR36,9261962–

1053DeWitt County, TXTX20,3091962–

1054Marin County, CACA253,6941962–

1055Kane County, ILIL525,7571962–

1056Washington County, KYKY12,3681962–

1057Webster County, KYKY12,9291962–

1058Kennebec County, MEME129,0671962–

1059Chippewa County, MIMI36,0811962–

1060Ingham County, MIMI289,7091962–

1061Kent County, MIMI675,2321962–

1062Koochiching County, MNMN11,5871962–

1063Lyon County, MNMN25,6841962–

1064McLeod County, MNMN36,6311962–

1065Pennington County, MNMN13,6861962–

1066Rice County, MNMN69,9391962–

1067Wadena County, MNMN14,3881962–

1068Gasconade County, MOMO14,7841962–

1069Lawrence County, MOMO39,4011962–

1070Mercer County, MOMO3,4041962–

1071Monroe County, MOMO8,9591962–

1072Pike County, MOMO17,9551962–

1073Putnam County, MOMO4,5461962–

1074Carbon County, MTMT11,4661962–

1075Garfield County, MTMT1,1481962–

1076Douglas County, NENE606,4601962–

1077Platte County, NENE35,6491962–

1078Sullivan County, NHNH43,9611962–

1079Putnam County, NYNY99,0281962–

1080Kidder County, NDND2,3931962–

1081Stutsman County, NDND21,4141962–

1082Highland County, OHOH43,8231962–

1083Beaver County, OKOK4,8821962–

1084Garfield County, OKOK61,7791962–

1085Nowata County, OKOK9,5221962–

1086Okmulgee County, OKOK37,2411962–

1087Washita County, OKOK10,8841962–

1088Tripp County, SDSD5,7081962–

1089Yankton County, SDSD23,6351962–

1090Anderson County, TNTN82,0661962–

1091Bailey County, TXTX6,9631962–

1092Brooks County, TXTX6,5791962–

1093Carson County, TXTX5,8051962–

1094Crane County, TXTX4,5541962–

1095Falls County, TXTX17,8691962–

1096Hale County, TXTX31,8191962–

1097Hemphill County, TXTX3,0831962–

1098La Salle County, TXTX6,5171962–

1099Lipscomb County, TXTX2,9551962–

1100Sherman County, TXTX2,7811962–

1101Essex County, VTVT6,0511962–

1102Franklin County, VTVT51,1771962–

1103Accomack County, VAVA33,8591962–

1104Rappahannock County, VAVA7,4391962–

1105Logan County, WVWV30,3751962–

1106Mercer County, WVWV57,5031962–

1107Ritchie County, WVWV8,0341962–

1108Wetzel County, WVWV13,7341962–

1109Crawford County, WIWI15,9101962–

1110Pemiscot County, MOMO14,4651962–

1111Wood County, WIWI74,0601962–

1112Eau Claire County, WIWI109,0331962–

1113Butler County, PAPA200,1691962–

1114Marion County, ININ992,1961962–

1115Morris County, NJNJ524,2511962–

1116Cheyenne County, COCO1,7131962–

1117Dolores County, COCO2,4661962–

1118Mineral County, COCO9101962–

1119Caribou County, IDID7,2521962–

1120Payette County, IDID27,8241962–

1121Jasper County, ILIL9,0321962–

1122Jefferson County, ILIL36,1471962–

1123Jersey County, ILIL21,1601962–

1124Perry County, ILIL20,1601962–

1125Floyd County, ININ82,1531962–

1126Jackson County, ININ47,3701962–

1127Ohio County, ININ5,9941962–

1128Perry County, ININ19,3891962–

1129Ripley County, ININ29,4341962–

1130Switzerland County, ININ10,0371962–

1131Dickinson County, IAIA18,0771962–

1132Marion County, IAIA34,1921962–

1133Polk County, IAIA516,5461962–

1134Butler County, KSKS69,4841962–

1135Ford County, KSKS33,9931962–

1136Lyon County, KSKS32,2661962–

1137Wichita County, KSKS2,0311962–

1138Harrison County, KYKY19,6271962–

1139Madison County, NENE36,1061962–

1140Roosevelt County, NMNM18,6151962–

1141Franklin County, PAPA160,6521962–

1142Galax, VAVA6,6701962–

1143Petersburg, VAVA33,7341962–

1144Cowlitz County, WAWA114,8851962–

1145Grays Harbor County, WAWA78,1441962–

1146Monroe County, WIWI46,5721962–

1147Chambers County, ALAL34,2531963–

1148Bourbon County, KYKY20,2431963–

1149Yakima County, WAWA259,1851963–

1150Gilmer County, WVWV7,0851963–

1151Bartholomew County, ININ85,7291963–

1152Kalamazoo County, MIMI263,7951963–

1153Tuscola County, MIMI52,6801963–

1154Van Buren County, MIMI76,0711963–

1155Morrison County, MNMN34,6201963–

1156Otter Tail County, MNMN61,0411963–

1157DeKalb County, MOMO9,7951963–

1158Henry County, MOMO22,6711963–

1159Mississippi County, MOMO12,0031963–

1160Buffalo County, NENE51,1721963–

1161Cass County, NENE27,6571963–

1162Hall County, NENE63,6331963–

1163Eddy County, NMNM62,5091963–

1164Quay County, NMNM8,4541963–

1165Dutchess County, NYNY300,7081963–

1166Benson County, NDND5,7591963–

1167McLean County, NDND9,7401963–

1168Athens County, OHOH63,1971963–

1169Madison County, OHOH46,9851963–

1170Meigs County, OHOH21,5871963–

1171Shelby County, OHOH48,0651963–

1172Wayne County, OHOH116,7581963–

1173Dewey County, OKOK4,2071963–

1174Garvin County, OKOK26,3771963–

1175Seminole County, OKOK23,4411963–

1176Coos County, OROR63,9921963–

1177Harney County, OROR7,3801963–

1178Union County, PAPA42,3131963–

1179Jones County, SDSD9131963–

1180Crockett County, TXTX2,7691963–

1181Hansford County, TXTX4,9441963–

1182Jackson County, TXTX15,3931963–

1183McCulloch County, TXTX7,4721963–

1184Mills County, TXTX4,5801963–

1185Parmer County, TXTX9,6781963–

1186Presidio County, TXTX5,4331963–

1187Terry County, TXTX11,7201963–

1188Young County, TXTX18,1541963–

1189Wayne County, UTUT2,5871963–

1190Orange County, VTVT30,0021963–

1191Lunenburg County, VAVA12,0581963–

1192Rockbridge County, VAVA22,6631963–

1193Alexandria, VAVA160,6621963–

1194Colonial Heights, VAVA18,7381963–

1195Fairfax, VAVA26,7721963–

1196Greenbrier County, WVWV31,5781963–

1197Randolph County, WVWV26,8821963–

1198La Crosse County, WIWI121,3391963–

1199Rusk County, WIWI14,1461963–

1200Licking County, OHOH185,5641963–

1201Raleigh County, WVWV71,7751963–

1202Outagamie County, WIWI195,8941963–

1203Vernon County, MOMO19,9461963–

1204Carroll County, OHOH26,4751963–

1205Lake County, OHOH232,2171963–

1206Middlesex County, NJNJ883,3351963–

1207Monmouth County, NJNJ651,0351963–

1208Monroe County, ILIL34,8401963–

1209St. Louis County, MOMO990,9111963–

1210Alamosa County, COCO16,6881963–

1211Gilpin County, COCO6,0731963–

1212New Castle County, DEDE588,0261963–

1213Nez Perce County, IDID42,9051963–

1214Cumberland County, ILIL10,2081963–

1215Gallatin County, ILIL4,6161963–

1216Pope County, ILIL3,6721963–

1217Putnam County, ILIL5,6191963–

1218Union County, ILIL16,6561963–

1219Williamson County, ILIL67,2251963–

1220Allen County, ININ402,3291963–

1221Boone County, ININ80,6891963–

1222Elkhart County, ININ208,7741963–

1223Franklin County, ININ23,2861963–

1224Putnam County, ININ37,8761963–

1225White County, ININ25,1641963–

1226Shawnee County, KSKS178,6071963–

1227Carroll County, KYKY11,1411963–

1228Fleming County, KYKY15,7871963–

1229Fulton County, KYKY6,2181963–

1230Baltimore County, MDMD847,6501963–

1231Caroline County, MDMD34,1161963–

1232Valley County, MTMT7,3851963–

1233Chaves County, NMNM63,3641963–

1234Susquehanna County, PAPA38,2371963–

1235Wichita County, TXTX129,5551963–

1236Goshen County, WYWY12,6401963–

1237Arkansas County, ARAR15,8361964–

1238Columbia County, ARAR21,8941964–

1239Lafayette County, ARAR5,8881964–

1240Ouachita County, ARAR21,7311964–

1241Hickman County, KYKY4,3721964–

1242Union County, KYKY12,8391964–

1243Jefferson Davis Parish, LALA31,4711964–

1244Hancock County, MEME57,1711964–

1245Alger County, MIMI8,6411964–

1246Allegan County, MIMI123,1881964–

1247Clinton County, MIMI80,4321964–

1248Montcalm County, MIMI69,4061964–

1249Presque Isle County, MIMI13,1281964–

1250Mahnomen County, MNMN5,1531964–

1251Nicollet County, MNMN34,2731964–

1252Adams County, MSMS30,0611964–

1253Coahoma County, MSMS19,8491964–

1254Montgomery County, MSMS9,3541964–

1255Quitman County, MSMS5,3641964–

1256Adair County, MOMO25,6841964–

1257Moniteau County, MOMO15,4281964–

1258Montgomery County, MOMO11,5901964–

1259Oregon County, MOMO8,7091964–

1260Osage County, MOMO13,6111964–

1261Los Alamos County, NMNM19,4071964–

1262Suffolk County, NYNY1,546,0901964–

1263Billings County, NDND1,0711964–

1264Fairfield County, OHOH169,7521964–

1265Greene County, OHOH174,3221964–

1266Lawrence County, OHOH55,7101964–

1267Paulding County, OHOH18,7271964–

1268Craig County, OKOK14,5181964–

1269Texas County, OKOK20,3221964–

1270Washington County, OKOK54,0371964–

1271Union County, OROR25,9001964–

1272Adams County, PAPA107,5941964–

1273Cumberland County, PAPA277,2701964–

1274Snyder County, PAPA39,6551964–

1275Union County, SCSC26,7991964–

1276Jackson County, SDSD2,6661964–

1277Crockett County, TNTN14,0061964–

1278Lake County, TNTN6,2491964–

1279Cochran County, TXTX2,5461964–

1280Colorado County, TXTX21,4391964–

1281Edwards County, TXTX1,3701964–

1282Lavaca County, TXTX20,6511964–

1283Martin County, TXTX5,2841964–

1284Mitchell County, TXTX8,9471964–

1285Schleicher County, TXTX2,2451964–

1286Taylor County, TXTX150,0771964–

1287Weber County, UTUT278,1741964–

1288Addison County, VTVT38,0481964–

1289Alleghany County, VAVA14,5461964–

1290Page County, VAVA23,7621964–

1291Fredericksburg, VAVA30,3931964–

1292Mason County, WVWV24,7071964–

1293Barron County, WIWI46,4841964–

1294Washington County, OHOH58,3891964–

1295Castro County, TXTX7,2951964–

1296Albany County, WYWY38,5581964–

1297Sheridan County, WYWY33,2411964–

1298Martin County, ININ9,8561964–

1299Unicoi County, TNTN17,8561964–

1300Dunn County, WIWI46,2231964–

1301Cumberland County, KYKY5,9921964–

1302Jefferson County, ALAL665,7421964–

1303Terrell County, GAGA8,6561964–

1304Miami County, KSKS36,2401964–

1305Pickaway County, OHOH62,9781964–

1306Union County, OHOH73,4461964–

1307Hinsdale County, COCO7531964–

1308Jackson County, COCO1,2111964–

1309Bibb County, GAGA157,5561964–

1310Clay County, GAGA2,8151964–

1311Cassia County, IDID26,3971964–

1312Jerome County, IDID26,3621964–

1313Boone County, ILIL53,5681964–

1314Grundy County, ILIL54,0521964–

1315Jefferson County, ININ33,2791964–

1316Tippecanoe County, ININ190,4561964–

1317Story County, IAIA101,2911964–

1318Morton County, KSKS2,4701964–

1319Carlisle County, KYKY4,7471964–

1320Harlan County, KYKY24,7251964–

1321McCracken County, KYKY67,5531964–

1322Waldo County, MEME40,6931964–

1323Stanly County, NCNC68,8301964–

1324Wyoming County, PAPA25,7901964–

1325Gibson County, TNTN51,7791964–

1326Beaver County, UTUT7,3011964–

1327Box Elder County, UTUT65,3201964–

1328Hopewell, VAVA23,2611964–

1329Salem, VAVA25,8161964–

1330Asotin County, WAWA22,5451964–

1331Chelan County, WAWA81,9411964–

1332Covington County, ALAL37,9471965–

1333Perry County, ALAL7,4251965–

1334Monroe County, ARAR6,2441965–

1335Phillips County, ARAR14,2551965–

1336Glenn County, CACA28,1411965–

1337Calhoun County, WVWV5,9781965–

1338Wood County, OHOH134,1761965–

1339Ware County, GAGA36,9061965–

1340Acadia Parish, LALA57,0321965–

1341Franklin County, MEME30,8241965–

1342Talbot County, MDMD38,2381965–

1343Oakland County, MIMI1,288,3371965–

1344Washtenaw County, MIMI370,2141965–

1345Clay County, MNMN67,7341965–

1346Clearwater County, MNMN8,6471965–

1347Dunklin County, MOMO26,8551965–

1348Wright County, MOMO19,6711965–

1349Blaine County, MTMT6,8601965–

1350Powder River County, MTMT1,7811965–

1351Richland County, MTMT11,3771965–

1352Roosevelt County, MTMT10,2421965–

1353Lancaster County, NENE334,0491965–

1354Atlantic County, NJNJ278,6571965–

1355Gloucester County, NJNJ312,6381965–

1356Lea County, NMNM74,7491965–

1357Richmond County, NYNY501,2901965–

1358Rockland County, NYNY357,3971965–

1359Anson County, NCNC21,7581965–

1360Gates County, NCNC10,2341965–

1361Rowan County, NCNC155,0961965–

1362Geauga County, OHOH95,6761965–

1363Hocking County, OHOH27,5121965–

1364Morgan County, OHOH13,6261965–

1365Morrow County, OHOH36,3051965–

1366Portage County, OHOH163,4041965–

1367Carter County, OKOK48,9101965–

1368Major County, OKOK7,5361965–

1369Muskogee County, OKOK66,7081965–

1370Okfuskee County, OKOK11,4511965–

1371Stephens County, OKOK44,3101965–

1372Grant County, OROR7,0751965–

1373Hood River County, OROR23,7201965–

1374Klamath County, OROR70,2741965–

1375Lake County, OROR8,1871965–

1376Bucks County, PAPA647,8281965–

1377Perry County, PAPA46,8061965–

1378Chester County, SCSC33,0011965–

1379Comanche County, TXTX14,4321965–

1380Fayette County, TXTX25,4591965–

1381Gonzales County, TXTX20,1591965–

1382Jack County, TXTX9,5631965–

1383Oldham County, TXTX1,7831965–

1384Tooele County, UTUT87,4611965–

1385Windham County, VTVT45,2041965–

1386Bath County, VAVA4,0761965–

1387Charlotte County, VAVA11,4011965–

1388Floyd County, VAVA15,7891965–

1389Mathews County, VAVA8,5291965–

1390Richmond County, VAVA9,2941965–

1391Smyth County, VAVA28,8821965–

1392Franklin, VAVA8,4781965–

1393Mineral County, WVWV26,7921965–

1394Pleasants County, WVWV7,3381965–

1395Lafayette County, MOMO33,5311965–

1396Pierce County, WIWI43,5191965–

1397Kleberg County, TXTX30,3151965–

1398Beaverhead County, MTMT10,0431965–

1399Brewster County, TXTX9,4581965–

1400Cape May County, NJNJ93,3901965–

1401Osage County, KSKS15,6931965–

1402Franklin County, OHOH1,361,5361965–

1403Calhoun County, GAGA5,4131965–

1404Chatham County, GAGA311,8551965–

1405Floyd County, GAGA101,3781965–

1406Muscogee County, GAGA202,1711965–

1407Washington County, IDID11,5831965–

1408Dearborn County, ININ51,6091965–

1409Jasper County, ININ33,8941965–

1410Kosciusko County, ININ80,8921965–

1411LaGrange County, ININ41,3051965–

1412Coffey County, KSKS8,4671965–

1413Ellis County, KSKS29,0751965–

1414Kearny County, KSKS3,8881965–

1415Leavenworth County, KSKS84,5901965–

1416Seward County, KSKS21,0731965–

1417Crittenden County, KYKY8,8071965–

1418Green County, KYKY11,6441965–

1419Hart County, KYKY20,1171965–

1420Mercer County, KYKY23,7331965–

1421Pendleton County, KYKY14,8001965–

1422Todd County, KYKY12,9721965–

1423Washington Parish, LALA44,9371965–

1424Somerset County, MDMD24,9731965–

1425Alamance County, NCNC186,1771965–

1426Vinton County, OHOH12,6451965–

1427Ward County, TXTX11,1251965–

1428Wharton County, TXTX42,0601965–

1429Sevier County, UTUT22,8271965–

1430Scott County, VAVA21,2001965–

1431Adams County, WAWA21,4881965–

1432Kittitas County, WAWA48,8031965–

1433Lewis County, WAWA88,0621965–

1434Hot Springs County, WYWY4,6001965–

1435Clay County, ALAL14,2071966–

1436Colbert County, ALAL59,4741966–

1437Pulaski County, GAGA10,1721966–

1438Randolph County, ALAL23,1631966–

1439Clark County, ARAR20,9381966–

1440Clay County, ARAR14,0521966–

1441Prairie County, ARAR7,9231966–

1442Shelby County, TNTN910,2261966–

1443Sullivan County, TNTN163,7591966–

1444Modoc County, CACA8,4261966–

1445Napa County, CACA132,9491966–

1446Clark County, ININ130,4511966–

1447Bienville Parish, LALA12,2691966–

1448Caddo Parish, LALA224,2261966–

1449Claiborne Parish, LALA13,3541966–

1450Jackson Parish, LALA15,8341966–

1451Tensas Parish, LALA3,7001966–

1452Iosco County, MIMI25,2661966–

1453Mackinac County, MIMI11,2361966–

1454Macomb County, MIMI886,2211966–

1455Midland County, MIMI83,7541966–

1456Oceana County, MIMI27,1771966–

1457Kandiyohi County, MNMN44,7201966–

1458Humphreys County, MSMS7,0011966–

1459Leflore County, MSMS25,6861966–

1460Washington County, MSMS40,4461966–

1461Yazoo County, MSMS22,9471966–

1462Dent County, MOMO14,5841966–

1463Perry County, MOMO19,0931966–

1464Ray County, MOMO23,3981966–

1465Dakota County, NENE21,6871966–

1466Strafford County, NHNH135,0431966–

1467Burlington County, NJNJ481,4391966–

1468Somerset County, NJNJ356,4861966–

1469Curry County, NMNM46,6551966–

1470San Miguel County, NMNM26,2601966–

1471Richmond County, NCNC42,0411966–

1472Rockingham County, NCNC94,1951966–

1473Ward County, NDND68,2331966–

1474Blaine County, OKOK8,5151966–

1475Caddo County, OKOK26,1301966–

1476Roger Mills County, OKOK3,2591966–

1477Malheur County, OROR32,2611966–

1478Fulton County, PAPA14,4831966–

1479Greenwood County, SCSC70,3791966–

1480Brookings County, SDSD37,6351966–

1481Buffalo County, SDSD1,8021966–

1482Corson County, SDSD3,7811966–

1483Lawrence County, SDSD29,4591966–

1484Hamilton County, TNTN390,8331966–

1485Obion County, TNTN30,0671966–

1486Borden County, TXTX5671966–

1487Deaf Smith County, TXTX18,6261966–

1488Fannin County, TXTX39,2651966–

1489Kimble County, TXTX4,4381966–

1490McLennan County, TXTX272,0201966–

1491Moore County, TXTX21,8911966–

1492Morris County, TXTX12,1331966–

1493Ochiltree County, TXTX9,2841966–

1494Yoakum County, TXTX7,4381966–

1495Garfield County, UTUT5,2561966–

1496Clarke County, VAVA15,6091966–

1497Greensville County, VAVA11,1811966–

1498Halifax County, VAVA33,4471966–

1499Pulaski County, VAVA33,5861966–

1500Southampton County, VAVA18,1101966–

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS