Which county has the lowest median age?

Lexington, Virginia ranks #1 with 22.7 (2020 American Community Survey).

What are the top 5 counties by median age?

Lexington, Virginia, Madison County, Idaho, Harrisonburg, Virginia, Radford, Virginia, Kusilvak Census Area, Alaska.

How many counties are in this ranking?

3,135 counties qualify after filtering for population minimums and data availability. The ranking covers 2020 ACS 5-year data.

How is median age measured?

Median age of all residents. Source: US Census Bureau, American Community Survey 5-year estimates (2020).

RANKING · 2020 CENSUS · 135 SHOWN OF 3,135

Youngest by median age, US counties · 2020

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

3001Northampton County, NCNC16,49152.1+30%

3002Essex County, VTVT6,05152.1+34%

3003Northampton County, VAVA11,87952.1+23%

3004Smith County, KSKS3,56652.1+13%

3005Potter County, SDSD2,37752.2+14%

3006Costilla County, COCO3,67952.2+24%

3007Archuleta County, COCO14,30652.2+28%

3008Hardin County, ILIL3,58852.2+24%

3009Lincoln County, MEME36,59552.2+23%

3010Wells County, NDND3,72952.4+16%

3011Rappahannock County, VAVA7,43952.4+23%

3012Aransas County, TXTX26,14652.5+23%

3013Pope County, ILIL3,67252.5+28%

3014Schoolcraft County, MIMI8,18752.6+27%

3015Granite County, MTMT3,65852.6+23%

3016Blanco County, TXTX13,58152.6+28%

3017Marion County, TXTX9,89652.6+21%

3018Charles City County, VAVA6,62352.6+32%

3019Lemhi County, IDID8,47452.6+23%

3020Baxter County, ARAR42,98252.7+10%

3021Mason County, TXTX3,99052.7+13%

3022Sawyer County, WIWI18,84652.7+25%

3023Columbia County, WAWA4,14152.7+24%

3024Marion County, ARAR17,59352.8+20%

3025Mineral County, MTMT5,18552.8+28%

3026Prairie County, MTMT1,11252.8+8%

3027Wallowa County, OROR7,59552.8+19%

3028Kent County, TXTX67452.8+12%

3029Price County, WIWI13,98852.8+27%

3030Oneida County, WIWI38,13152.8+25%

3031Madison County, MTMT10,02652.9+22%

3032Lincoln County, OROR50,63652.9+20%

3033Collier County, FLFL417,13152.9+20%

3034Clallam County, WAWA78,20252.9+21%

3035Washburn County, WIWI17,08752.9+26%

3036Plumas County, CACA18,58353.0+20%

3037Lincoln County, NMNM19,84453.0+21%

3038Stonewall County, TXTX1,18653.0+21%

3039Grant County, NDND2,20653.1+14%

3040Cook County, MNMN5,52253.1+21%

3041Golden Valley County, MTMT84453.1+28%

3042Cherokee County, NCNC30,83053.1+21%

3043Meagher County, MTMT2,13753.2+24%

3044Sullivan County, PAPA5,85653.2+24%

3045Gillespie County, TXTX28,52753.2+15%

3046Menard County, TXTX1,95653.2+21%

3047Fannin County, GAGA26,11153.2+23%

3048Martin County, FLFL166,27253.3+13%

3049Iosco County, MIMI25,26653.4+21%

3050Petroleum County, MTMT54853.4+30%

3051Wahkiakum County, WAWA4,87353.4+20%

3052Pendleton County, WVWV5,82653.4+30%

3053Campbell County, SDSD1,37753.5+28%

3054Iron County, MIMI11,75753.6+18%

3055Nye County, NVNV57,33653.6+25%

3056Cumberland County, TNTN66,30053.6+26%

3057Esmeralda County, NVNV72953.6+19%

3058Mackinac County, MIMI11,23653.7+25%

3059Quitman County, GAGA2,25453.7+28%

3060Mohave County, AZAZ228,10253.8+25%

3061Oscoda County, MIMI8,72353.8+23%

3062Benton County, MOMO20,53653.8+16%

3063Mora County, NMNM4,05153.8+36%

3064Polk County, NCNC20,53353.8+20%

3065Nelson County, NDND2,96353.8+14%

3066Sabine County, TXTX10,01253.8+14%

3067Adams County, WIWI21,75253.8+21%

3068Bandera County, TXTX22,87653.8+30%

3069Pacific County, WAWA24,35753.8+17%

3070Sierra County, CACA3,09853.9+23%

3071Boise County, IDID8,54553.9+33%

3072Custer County, IDID4,63654.0+31%

3073Stone County, MOMO32,50354.0+22%

3074Lincoln County, MTMT22,32854.0+28%

3075Flagler County, FLFL140,36054.0+7%

3076Douglas County, NVNV50,11154.1+30%

3077Storey County, NVNV4,26054.2+22%

3078Bayfield County, WIWI16,78754.2+29%

3079Mathews County, VAVA8,52954.3+18%

3080Burnett County, WIWI17,22354.4+23%

3081Door County, WIWI30,61654.5+27%

3082La Paz County, AZAZ16,71154.6+17%

3083Pamlico County, NCNC12,75854.6+27%

3084Ouray County, COCO5,26554.6+26%

3085McIntosh County, NDND2,45154.7+7%

3086Highlands County, FLFL111,12254.7+9%

3087Carroll County, NHNH52,78454.9+29%

3088Adams County, IDID5,01354.9+24%

3089Barnstable County, MAMA233,53955.0+23%

3090Leelanau County, MIMI22,98255.1+29%

3091Boyd County, NENE1,67455.1+26%

3092Fall River County, SDSD7,46755.1+21%

3093Indian River County, FLFL172,79955.1+17%

3094Sanders County, MTMT14,06255.2+25%

3095Clay County, NCNC12,23955.3+18%

3096Middlesex County, VAVA10,84155.4+18%

3097Yavapai County, AZAZ252,55255.5+25%

3098Florence County, WIWI4,74855.5+32%

3099Wheeler County, OROR1,47255.9+16%

3100Union County, GAGA27,85955.9+25%

3101Huerfano County, COCO7,01156.0+34%

3102Presque Isle County, MIMI13,12856.1+24%

3103San Juan County, WAWA18,57756.1+18%

3104Aitkin County, MNMN16,25256.2+21%

3105Real County, TXTX2,74556.3+26%

3106Hinsdale County, COCO75356.3+28%

3107Custer County, SDSD9,43156.4+31%

3108Iron County, WIWI6,12756.4+25%

3109Brunswick County, NCNC174,70256.5+34%

3110Keweenaw County, MIMI2,18656.6+26%

3111Montmorency County, MIMI9,84256.6+20%

3112Roscommon County, MIMI23,91456.6+20%

3113Mineral County, COCO91056.8+26%

3114Vilas County, WIWI23,76156.8+24%

3115Hamilton County, NYNY5,00657.0+26%

3116Hickory County, MOMO9,04457.2+15%

3117Towns County, GAGA13,28557.2+18%

3118Sierra County, NMNM11,39557.3+17%

3119Curry County, OROR22,62157.5+18%

3120Sarasota County, FLFL479,95857.6+14%

3121Llano County, TXTX23,35357.7+9%

3122Citrus County, FLFL171,66657.9+10%

3123Alcona County, MIMI10,55658.2+19%

3124Custer County, COCO5,59058.3+30%

3125Harding County, NMNM61758.4+20%

3126Jeff Davis County, TXTX1,71158.4+37%

3127Highland County, VAVA2,31858.4+27%

3128McCormick County, SCSC10,21558.5+42%

3129Northumberland County, VAVA12,55758.7+17%

3130Ontonagon County, MIMI5,82359.1+29%

3131Lancaster County, VAVA10,99559.2+19%

3132Jefferson County, WAWA33,97059.6+27%

3133Charlotte County, FLFL217,21260.2+11%

3134Catron County, NMNM3,82761.9+29%

3135Sumter County, FLFL157,77268.5+39%

SHOWING 3,001–3,135 OF 3,135

1 2 3 4 5 6 7

Download CSV (full list, 3,135 rows)

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