Which county has the lowest median age?

Radford, Virginia ranks #1 with 22.4 (2010 American Community Survey).

What are the top 5 counties by median age?

Radford, Virginia, Madison County, Idaho, Harrisonburg, Virginia, Lexington, Virginia, Williamsburg, Virginia.

How many counties are in this ranking?

3,131 counties qualify after filtering for population minimums and data availability. The ranking covers 2010 ACS 5-year data.

How is median age measured?

Median age of all residents. Source: US Census Bureau, American Community Survey 5-year estimates (2010).

RANKING · 2010 CENSUS · 131 SHOWN OF 3,131

Youngest by median age, US counties · 2010

US counties with the youngest median age (2023 ACS).

Flip the list · Oldest by median age, US counties →

All statesAll rankings

SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 2000

3001Eddy County, NDND2,32949.2+12%

3002Calaveras County, CACA46,60549.2+10%

3003Mariposa County, CACA16,91849.2+15%

3004Harlan County, NENE3,00049.2+11%

3005Thayer County, NENE4,84249.2+12%

3006Mineral County, NVNV4,40749.2+15%

3007LaMoure County, NDND4,13549.2+14%

3008Slope County, NDND62849.2+16%

3009Adams County, WIWI21,75249.2+11%

3010Sedgwick County, COCO2,24749.2+14%

3011Powder River County, MTMT1,78149.3+17%

3012Pawnee County, NENE2,51049.3+7%

3013Mason County, TXTX3,99049.3+6%

3014Trinity County, CACA15,72049.3+11%

3015Trego County, KSKS2,74049.3+13%

3016Lincoln County, NMNM19,84449.4+13%

3017Hettinger County, NDND2,49249.4+7%

3018Bayfield County, WIWI16,78749.4+17%

3019Graham County, KSKS2,37149.4+11%

3020Door County, WIWI30,61649.4+15%

3021Nuckolls County, NENE4,10049.5+12%

3022Adams County, NDND2,27549.5+9%

3023Plumas County, CACA18,58349.6+12%

3024Clay County, NCNC12,23949.6+6%

3025Lincoln County, OROR50,63649.6+12%

3026Gillespie County, TXTX28,52749.6+7%

3027Smith County, KSKS3,56649.6+8%

3028Oscoda County, MIMI8,72349.7+14%

3029Gilliam County, OROR1,97149.7+16%

3030Martin County, FLFL166,27249.7+5%

3031Lemhi County, IDID8,47449.7+16%

3032Cook County, MNMN5,52249.8+13%

3033Madison County, MTMT10,02649.8+15%

3034Mineral County, MTMT5,18549.8+21%

3035Sanders County, MTMT14,06249.8+13%

3036Garden County, NENE1,80449.8+9%

3037Logan County, NDND1,85949.8+7%

3038McMullen County, TXTX54449.8+16%

3039Barnstable County, MAMA233,53949.9+12%

3040Stone County, MOMO32,50349.9+13%

3041Rock County, NENE1,25949.9+15%

3042Sullivan County, PAPA5,85649.9+16%

3043Grant County, OROR7,07550.0+20%

3044McCormick County, SCSC10,21550.0+22%

3045Ouray County, COCO5,26550.0+15%

3046Adams County, IDID5,01350.0+13%

3047Cheyenne County, KSKS2,60450.0+13%

3048Marion County, ARAR17,59350.1+14%

3049Lake County, MIMI13,18250.1+16%

3050Meagher County, MTMT2,13750.1+17%

3051Hooker County, NENE68650.1+11%

3052Campbell County, SDSD1,37750.1+20%

3053Mathews County, VAVA8,52950.1+8%

3054Carter County, MTMT1,38350.2+20%

3055Boyd County, NENE1,67450.2+15%

3056Cavalier County, NDND3,49750.3+11%

3057Leelanau County, MIMI22,98250.3+18%

3058Sheridan County, MTMT3,43650.3+12%

3059Garfield County, NENE1,71050.3+10%

3060Towner County, NDND2,04050.3+14%

3061Custer County, SDSD9,43150.3+16%

3062Daniels County, MTMT1,61250.4+7%

3063Menard County, TXTX1,95650.4+14%

3064Emmons County, NDND3,21550.5+13%

3065Storey County, NVNV4,26050.5+13%

3066Wallowa County, OROR7,59550.5+14%

3067Fall River County, SDSD7,46750.5+11%

3068Real County, TXTX2,74550.5+13%

3069Sabine County, TXTX10,01250.5+7%

3070Baxter County, ARAR42,98250.6+5%

3071Potter County, SDSD2,37750.6+10%

3072Republic County, KSKS4,64050.6+11%

3073Keya Paha County, NENE79250.7+21%

3074Union County, GAGA27,85950.7+13%

3075Vilas County, WIWI23,76150.7+11%

3076McPherson County, SDSD2,34750.8+7%

3077Pacific County, WAWA24,35750.8+11%

3078Sierra County, CACA3,09850.9+16%

3079Iosco County, MIMI25,26651.0+15%

3080Middlesex County, VAVA10,84151.0+9%

3081Iron County, WIWI6,12751.0+13%

3082Towns County, GAGA13,28551.1+5%

3083Hamilton County, NYNY5,00651.3+13%

3084Rawlins County, KSKS2,43151.3+13%

3085Divide County, NDND2,11051.4+5%

3086Decatur County, KSKS2,71651.4+16%

3087Benton County, MOMO20,53651.5+11%

3088Nelson County, NDND2,96351.5+9%

3089Wells County, NDND3,72951.5+14%

3090Highlands County, FLFL111,12251.5+3%

3091Treasure County, MTMT72851.5+23%

3092Keweenaw County, MIMI2,18651.6+15%

3093Grant County, NDND2,20651.7+11%

3094Presque Isle County, MIMI13,12851.7+15%

3095Aitkin County, MNMN16,25251.7+11%

3096Huerfano County, COCO7,01151.8+24%

3097Griggs County, NDND2,23951.9+13%

3098Iron County, MIMI11,75751.9+14%

3099Jeff Davis County, TXTX1,71152.0+22%

3100Granite County, MTMT3,65852.1+22%

3101Montmorency County, MIMI9,84252.3+11%

3102Wahkiakum County, WAWA4,87352.3+18%

3103Highland County, VAVA2,31852.5+14%

3104Sarasota County, FLFL479,95852.5+4%

3105Jewell County, KSKS2,83052.5+14%

3106Ontonagon County, MIMI5,82352.7+15%

3107Loving County, TXTX5252.7+15%

3108McIntosh County, NDND2,45152.7+3%

3109San Juan County, WAWA18,57752.7+11%

3110Esmeralda County, NVNV72952.9+17%

3111Hickory County, MOMO9,04453.0+7%

3112Wheeler County, OROR1,47253.0+10%

3113Mineral County, COCO91053.1+18%

3114Roscommon County, MIMI23,91453.3+13%

3115Custer County, COCO5,59053.3+19%

3116Sheridan County, NDND1,29653.4+11%

3117Curry County, OROR22,62153.5+10%

3118Prairie County, MTMT1,11253.6+10%

3119Northumberland County, VAVA12,55753.6+7%

3120La Paz County, AZAZ16,71153.9+15%

3121Jefferson County, WAWA33,97053.9+14%

3122Citrus County, FLFL171,66654.0+3%

3123Lancaster County, VAVA10,99554.1+9%

3124Sierra County, NMNM11,39554.5+11%

3125Llano County, TXTX23,35355.0+4%

3126Alcona County, MIMI10,55655.2+13%

3127Kalawao County, HIHI8255.3−6%

3128Catron County, NMNM3,82755.8+17%

3129Harding County, NMNM61755.9+15%

3130Charlotte County, FLFL217,21255.9+3%

3131Sumter County, FLFL157,77262.7+27%

SHOWING 3,001–3,131 OF 3,131

1 2 3 4 5 6 7

Download CSV (full list, 3,131 rows)

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