Which county has the highest median year built?

Douglas County, Colorado ranks #1 with 1983 (1990 Decennial Census).

What are the top 5 counties by median year built?

Douglas County, Colorado, Flagler County, Florida, Camden County, Georgia, Fayette County, Georgia, Hernando County, Florida.

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 · 122 SHOWN OF 3,122

Newest housing stock, US counties · 1990

US counties ranked by median year housing was built (1990 ACS).

Flip the list · Oldest housing stock, US counties →

All statesAll rankings

SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2010 2020 2024

RANKPLACESTATEPOPMEDIAN YEAR BUILTVS –

3001Osceola County, IAIA5,9801942–

3002Pocahontas County, IAIA6,8191942–

3003Clay County, KSKS7,9901942–

3004Norton County, KSKS5,2881942–

3005Rush County, KSKS2,8451942–

3006Kings County, NYNY2,653,9631941–

3007Gogebic County, MIMI14,2851941–

3008Ransom County, NDND5,6171941–

3009Hudson County, NJNJ735,0331941–

3010Van Buren County, IAIA7,1311941–

3011Ellsworth County, KSKS6,2571941–

3012Garfield County, WAWA2,4161941–

3013Otsego County, NYNY60,5891940–

3014Sheridan County, NDND1,2961940–

3015Pierce County, NENE7,3781940–

3016Bureau County, ILIL32,5101940–

3017Worth County, IAIA7,3381940–

3018Chautauqua County, KSKS3,3211940–

3019Luzerne County, PAPA332,1261940–

3020San Francisco County, CACA826,0791939–

3021Taylor County, IAIA5,8351939–

3022Suffolk County, MAMA791,8911939–

3023Houghton County, MIMI37,8421939–

3024Keweenaw County, MIMI2,1861939–

3025Fillmore County, MNMN21,5401939–

3026Lac qui Parle County, MNMN6,7041939–

3027Scotland County, MOMO4,7961939–

3028St. Louis, MOMO278,1441939–

3029Deer Lodge County, MTMT9,7091939–

3030Wheatland County, MTMT2,1001939–

3031Antelope County, NENE6,3521939–

3032Banner County, NENE6861939–

3033Boone County, NENE5,3551939–

3034Boyd County, NENE1,6741939–

3035Butler County, NENE8,5071939–

3036Cedar County, NENE8,3731939–

3037Clay County, NENE6,1701939–

3038Cuming County, NENE8,8231939–

3039Custer County, NENE10,5001939–

3040Deuel County, NENE1,8621939–

3041Dixon County, NENE5,6021939–

3042Franklin County, NENE2,7951939–

3043Frontier County, NENE2,6551939–

3044Furnas County, NENE4,5241939–

3045Garden County, NENE1,8041939–

3046Hayes County, NENE8211939–

3047Howard County, NENE6,5381939–

3048Jefferson County, NENE7,0701939–

3049Johnson County, NENE5,2181939–

3050Logan County, NENE6691939–

3051Nuckolls County, NENE4,1001939–

3052Pawnee County, NENE2,5101939–

3053Sherman County, NENE2,9241939–

3054Sioux County, NENE1,1881939–

3055Valley County, NENE4,0941939–

3056Webster County, NENE3,3361939–

3057Cayuga County, NYNY74,3651939–

3058Chautauqua County, NYNY124,1261939–

3059Fulton County, NYNY52,2161939–

3060Montgomery County, NYNY50,0461939–

3061Orleans County, NYNY39,8251939–

3062Burke County, NDND2,1321939–

3063Sargent County, NDND3,7111939–

3064Lackawanna County, PAPA216,5021939–

3065Northumberland County, PAPA89,9201939–

3066Schuylkill County, PAPA145,0851939–

3067Aurora County, SDSD2,8011939–

3068Clark County, SDSD4,0311939–

3069Douglas County, SDSD2,8881939–

3070Faulk County, SDSD2,1781939–

3071Hand County, SDSD3,1211939–

3072Hanson County, SDSD3,4561939–

3073Hyde County, SDSD1,1911939–

3074Jerauld County, SDSD1,6541939–

3075Kingsbury County, SDSD5,2841939–

3076McCook County, SDSD5,9641939–

3077Miner County, SDSD2,2811939–

3078Sanborn County, SDSD2,3881939–

3079Spink County, SDSD6,1551939–

3080Turner County, SDSD9,3141939–

3081Ottawa County, KSKS5,7441939–

3082Greeley County, NENE2,1541939–

3083Richardson County, NENE7,5301939–

3084Polk County, NENE5,2701939–

3085Greene County, IAIA8,6581939–

3086San Juan County, COCO8131939–

3087Sedgwick County, COCO2,2471939–

3088Kalawao County, HIHI821939–

3089Stark County, ILIL5,3191939–

3090Rush County, ININ16,7671939–

3091Adair County, IAIA7,4031939–

3092Adams County, IAIA3,6171939–

3093Audubon County, IAIA5,5091939–

3094Clayton County, IAIA16,8451939–

3095Fayette County, IAIA19,0471939–

3096Harrison County, IAIA14,6231939–

3097Ida County, IAIA6,7771939–

3098Keokuk County, IAIA9,7971939–

3099Monona County, IAIA8,5391939–

3100Montgomery County, IAIA10,0021939–

3101Tama County, IAIA16,7961939–

3102Brown County, KSKS9,1041939–

3103Clark County, KSKS1,9001939–

3104Comanche County, KSKS1,6731939–

3105Edwards County, KSKS2,6401939–

3106Elk County, KSKS2,4581939–

3107Jewell County, KSKS2,8301939–

3108Lincoln County, KSKS2,8611939–

3109Marshall County, KSKS9,8521939–

3110Mitchell County, KSKS5,5901939–

3111Nemaha County, KSKS10,0541939–

3112Rawlins County, KSKS2,4311939–

3113Republic County, KSKS4,6401939–

3114Smith County, KSKS3,5661939–

3115Stafford County, KSKS4,0051939–

3116Washington County, KSKS5,5331939–

3117Burt County, NENE6,6781939–

3118Nance County, NENE3,2901939–

3119Wayne County, NENE10,0201939–

3120Herkimer County, NYNY59,2191939–

3121Wyoming County, NYNY39,7411939–

3122Philadelphia County, PAPA1,574,2811939–

SHOWING 3,001–3,122 OF 3,122

1 2 3 4 5 6 7

Download CSV (full list, 3,122 rows)

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