Which county has the highest median year built?

Pinal County, Arizona ranks #1 with 2000 (2010 American Community Survey).

What are the top 5 counties by median year built?

Pinal County, Arizona, Flagler County, Florida, Forsyth County, Georgia, Henry County, Georgia, Kendall County, Illinois.

How many counties are in this ranking?

3,108 counties qualify after filtering for population minimums and data availability. The ranking covers 2010 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 (2010).

RANKING · 2010 CENSUS · 108 SHOWN OF 3,108

Newest housing stock, US counties · 2010

US counties ranked by median year housing was built (2023 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 2000

3001Mitchell County, KSKS5,5901951–

3002Ness County, KSKS2,6171951–

3003Perkins County, NENE2,8491950–

3004Gogebic County, MIMI14,2851950–

3005Faribault County, MNMN13,8881950–

3006Prairie County, MTMT1,1121950–

3007Silver Bow County, MTMT36,1181950–

3008Arthur County, NENE3961950–

3009Grant County, NENE5611950–

3010Sioux County, NENE1,1881950–

3011Queens County, NYNY2,358,1821950–

3012Schenectady County, NYNY162,5811950–

3013Faulk County, SDSD2,1781950–

3014Moody County, SDSD6,6321950–

3015Ohio County, WVWV40,4961950–

3016Mitchell County, IAIA10,6501950–

3017District of Columbia, DCDC693,6451950–

3018Bureau County, ILIL32,5101950–

3019Clinton County, ININ33,3221950–

3020Howard County, IAIA9,4151950–

3021Tama County, IAIA16,7961950–

3022Harper County, KSKS5,3701950–

3023Rush County, KSKS2,8451950–

3024Griggs County, NDND2,2391949–

3025Fillmore County, MNMN21,5401949–

3026Lac qui Parle County, MNMN6,7041949–

3027Clay County, NENE6,1701949–

3028Keya Paha County, NENE7921949–

3029Orleans County, NYNY39,8251949–

3030McKean County, PAPA38,9841949–

3031Providence County, RIRI678,1791949–

3032Ottawa County, KSKS5,7441949–

3033Greenwood County, KSKS5,8261949–

3034Golden Valley County, NDND1,8081949–

3035Cass County, IAIA12,9601949–

3036Osceola County, IAIA5,9801949–

3037Page County, IAIA14,8561949–

3038Worth County, IAIA7,3381949–

3039Cheyenne County, KSKS2,6041949–

3040Rice County, KSKS9,2661949–

3041Luzerne County, PAPA332,1261949–

3042Eddy County, NDND2,3291948–

3043Frontier County, NENE2,6551948–

3044McPherson County, SDSD2,3471948–

3045Niobrara County, WYWY2,3411948–

3046Crowley County, COCO5,6771948–

3047Audubon County, IAIA5,5091948–

3048Ida County, IAIA6,7771948–

3049Monona County, IAIA8,5391948–

3050Pocahontas County, IAIA6,8191948–

3051Sac County, IAIA9,5251948–

3052Deer Lodge County, MTMT9,7091947–

3053Custer County, NENE10,5001947–

3054Hanson County, SDSD3,4561947–

3055Motley County, TXTX1,0431947–

3056Sheridan County, NENE4,8091947–

3057Chase County, KSKS2,5721947–

3058Norton County, KSKS5,2881947–

3059Wyoming County, NYNY39,7411947–

3060Baltimore, MDMD569,9971946–

3061Wheatland County, MTMT2,1001946–

3062Boyd County, NENE1,6741946–

3063Cuming County, NENE8,8231946–

3064Thayer County, NENE4,8421946–

3065Lackawanna County, PAPA216,5021946–

3066Highland County, VAVA2,3181946–

3067Marshall County, KSKS9,8521946–

3068Smith County, KSKS3,5661946–

3069Philadelphia County, PAPA1,574,2811946–

3070Houghton County, MIMI37,8421945–

3071Deuel County, NENE1,8621945–

3072Nemaha County, NENE7,1021945–

3073Chautauqua County, NYNY124,1261945–

3074Clark County, SDSD4,0311945–

3075Richardson County, NENE7,5301945–

3076Fayette County, IAIA19,0471945–

3077Franklin County, IAIA9,8681945–

3078Edwards County, KSKS2,6401945–

3079Nance County, NENE3,2901945–

3080Garden County, NENE1,8041944–

3081Johnson County, NENE5,2181944–

3082New York County, NYNY1,664,8621944–

3083Northumberland County, PAPA89,9201944–

3084Aurora County, SDSD2,8011944–

3085Comanche County, KSKS1,6731944–

3086Burt County, NENE6,6781944–

3087Decatur County, KSKS2,7161943–

3088Hitchcock County, NENE2,4671943–

3089Kingsbury County, SDSD5,2841943–

3090Turner County, SDSD9,3141943–

3091Osborne County, KSKS3,2851943–

3092Sedgwick County, COCO2,2471943–

3093Montgomery County, IAIA10,0021943–

3094Chautauqua County, KSKS3,3211943–

3095Garfield County, WAWA2,4161943–

3096Boone County, NENE5,3551942–

3097Sherman County, NENE2,9241942–

3098Montgomery County, NYNY50,0461942–

3099Jerauld County, SDSD1,6541942–

3100Kalawao County, HIHI821942–

3101Elk County, KSKS2,4581942–

3102Rawlins County, KSKS2,4311942–

3103Furnas County, NENE4,5241941–

3104Jefferson County, NENE7,0701941–

3105Republic County, KSKS4,6401941–

3106Antelope County, NENE6,3521940–

3107Schuylkill County, PAPA145,0851940–

3108Adams County, IAIA3,6171940–

SHOWING 3,001–3,108 OF 3,108

1 2 3 4 5 6 7

Download CSV (full list, 3,108 rows)

UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES