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RANKING · 1990 CENSUS · 500 SHOWN OF 3,122

Oldest by median age, US counties · 1990

US counties ranked by median age of residents (1990 ACS).

Flip the list · Youngest by median age, US counties
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RELATEDLargest foreign-born populationMost residents with a disabilityLargest veteran populationMost uninsured peopleLargest senior populationMost unmarried people
YEAR19902000201020202024
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RANKPLACESTATEPOPMEDIAN AGEVS –
2001San Miguel County, COCO7,75333.2
2002Dearborn County, ININ51,60933.2
2003Harrison County, ININ40,43733.2
2004Jersey County, ILIL21,16033.2
2005Humboldt County, CACA131,64733.2
2006Leavenworth County, KSKS84,59033.2
2007Ashland County, OHOH52,52333.2
2008Woodward County, OKOK19,82733.2
2009Johnson County, KYKY22,05133.2
2010Aroostook County, MEME66,60933.2
2011Boone County, ILIL53,56833.2
2012Iowa County, WIWI23,95133.2
2013Umatilla County, OROR81,11933.2
2014Marshall County, ININ46,59933.2
2015Whitley County, ININ35,04633.2
2016Lincoln County, SDSD77,14533.2
2017Tattnall County, GAGA24,37633.2
2018Twin Falls County, IDID97,53933.2
2019Hall County, NENE63,63333.2
2020Hughes County, SDSD17,57033.2
2021Daviess County, KYKY104,89833.2
2022Houston County, ALAL110,31833.2
2023Pontotoc County, MSMS32,09633.2
2024Scott County, MOMO37,97533.2
2025Fairfax County, VAVA1,167,87333.2
2026Newton County, MSMS20,96033.2
2027Seward County, NENE18,03233.2
2028Kalkaska County, MIMI18,69333.2
2029Dallam County, TXTX7,50833.2
2030Cattaraugus County, NYNY75,39033.2
2031Sandusky County, OHOH58,65533.2
2032Richland County, MTMT11,37733.2
2033Wood County, WIWI74,06033.2
2034Jackson County, NCNC45,03933.2
2035Chester County, SCSC33,00133.2
2036Banks County, GAGA21,27333.2
2037Plymouth County, MAMA546,82933.2
2038Churchill County, NVNV25,85133.2
2039Waseca County, MNMN18,68833.2
2040Talladega County, ALAL81,60333.2
2041Jackson County, MOMO732,99433.2
2042Cayuga County, NYNY74,36533.2
2043Hillsborough County, FLFL1,574,11533.1
2044Hardin County, TXTX58,72333.1
2045McCurtain County, OKOK30,74433.1
2046Lawrence County, KYKY15,76533.1
2047Shelby County, ININ45,88233.1
2048Orange County, VTVT30,00233.1
2049Bradley County, TNTN115,46533.1
2050Muscatine County, IAIA41,85333.1
2051Morton County, NDND34,60133.1
2052Treutlen County, GAGA6,46633.1
2053Darlington County, SCSC62,88833.1
2054Madison County, GAGA32,91933.1
2055Vance County, NCNC42,63833.1
2056Prentiss County, MSMS25,28433.1
2057Washington County, NYNY59,35333.1
2058Fauquier County, VAVA76,50333.1
2059Jennings County, ININ27,62233.1
2060Grand County, COCO16,49633.1
2061Henry County, OHOH27,59833.1
2062Pierce County, GAGA20,76433.1
2063Lynchburg, VAVA81,34733.1
2064Oldham County, KYKY70,98633.1
2065Tioga County, NYNY47,45333.1
2066Laurens County, GAGA51,04133.1
2067Linn County, IAIA232,02833.1
2068Grant County, NMNM27,25233.1
2069Worcester County, MAMA888,50233.1
2070Spokane County, WAWA558,34433.1
2071Wyoming County, PAPA25,79033.1
2072Weakley County, TNTN33,26133.1
2073Brown County, SDSD37,56133.1
2074Dubuque County, IAIA99,38133.1
2075Rankin County, MSMS162,18133.1
2076Jackson County, GAGA99,26533.1
2077Hancock County, OHOH75,03433.1
2078McKenzie County, NDND15,19233.1
2079Woodbury County, IAIA106,64933.1
2080Frederick County, VAVA99,95533.1
2081Hardeman County, TNTN25,27433.0
2082Burlington County, NJNJ481,43933.0
2083Rock County, WIWI166,47233.0
2084Monroe County, GAGA32,02333.0
2085Taylor County, GAGA7,81833.0
2086Rockwall County, TXTX140,73833.0
2087Erie County, PAPA265,83233.0
2088Lewis County, KYKY12,90133.0
2089Bell County, KYKY22,82933.0
2090Lake County, ININ504,61233.0
2091Morrow County, OHOH36,30533.0
2092Ripley County, ININ29,43433.0
2093Calhoun County, TXTX19,59933.0
2094Choctaw County, MSMS8,04833.0
2095Wells County, ININ28,88333.0
2096Monroe County, NYNY750,50633.0
2097Sussex County, NJNJ148,06333.0
2098Harrison County, TXTX71,95633.0
2099Kandiyohi County, MNMN44,72033.0
2100Ferry County, WAWA7,51733.0
2101Pike County, OHOH27,06133.0
2102York County, VAVA71,37433.0
2103Grimes County, TXTX34,25233.0
2104Allen County, OHOH100,88133.0
2105Crisp County, GAGA19,23733.0
2106Rensselaer County, NYNY160,51033.0
2107Haywood County, TNTN17,04233.0
2108Wagoner County, OKOK93,26333.0
2109Grady County, GAGA26,59033.0
2110Brewster County, TXTX9,45833.0
2111Madison County, TNTN100,79032.9
2112Walworth County, WIWI106,12732.9
2113Kankakee County, ILIL105,52532.9
2114Colleton County, SCSC39,38232.9
2115Tuscola County, MIMI52,68032.9
2116Kaufman County, TXTX209,23532.9
2117Gregg County, TXTX126,09532.9
2118Carter County, KYKY26,14932.9
2119Morgan County, KYKY14,41532.9
2120Livingston County, MIMI197,31532.9
2121Rockcastle County, KYKY16,14832.9
2122Hopewell, VAVA23,26132.9
2123Clarke County, MSMS15,10232.9
2124Choctaw County, ALAL11,90432.9
2125Franklin County, MEME30,82432.9
2126St. Clair County, MIMI160,48632.9
2127McLeod County, MNMN36,63132.9
2128Clark County, WAWA532,11932.9
2129Titus County, TXTX31,56332.9
2130Barbour County, ALAL24,60732.9
2131Huntington County, ININ37,22432.9
2132Johnson County, KSKS636,90632.9
2133Wheeler County, NENE78932.9
2134Androscoggin County, MEME116,48732.9
2135Black Hawk County, IAIA131,53232.9
2136Screven County, GAGA14,40832.9
2137Pima County, AZAZ1,074,68532.9
2138Vigo County, ININ106,51232.9
2139Jenkins County, GAGA8,84332.9
2140Crockett County, TXTX2,76932.9
2141Terrell County, GAGA8,65632.9
2142Whatcom County, WAWA236,39232.9
2143Garfield County, COCO63,47432.9
2144Pottawatomie County, KSKS27,18632.9
2145Clay County, MOMO265,03232.9
2146Alameda County, CACA1,636,63032.9
2147Cochise County, AZAZ126,33232.9
2148Tensas Parish, LALA3,70032.9
2149Natrona County, WYWY80,52632.9
2150St. Louis, MOMO278,14432.9
2151Hamilton County, ININ387,03632.9
2152Stevens County, KSKS4,98432.9
2153Union County, OHOH73,44632.9
2154Fremont County, WYWY39,46432.9
2155Clarendon County, SCSC31,04332.9
2156Codington County, SDSD29,56232.9
2157St. Joseph County, ININ272,86132.9
2158Clinton County, ILIL37,12832.9
2159Eaton County, MIMI109,58132.9
2160Dickson County, TNTN58,66232.9
2161Steele County, MNMN37,46432.8
2162St. Joseph County, MIMI60,96832.8
2163Racine County, WIWI198,91932.8
2164Wayne County, NYNY91,25032.8
2165Wayne County, GAGA32,48132.8
2166Johnson County, GAGA9,31032.8
2167Camden County, NJNJ535,79932.8
2168Brule County, SDSD5,27832.8
2169Morgan County, ININ74,96732.8
2170Orange County, TXTX86,26632.8
2171Cole County, MOMO77,90832.8
2172Gratiot County, MIMI41,19032.8
2173Platte County, MOMO114,40032.8
2174Wharton County, TXTX42,06032.8
2175Lancaster County, PAPA563,15932.8
2176Edgefield County, SCSC29,80832.8
2177Jefferson County, WIWI86,50532.8
2178Yamhill County, OROR110,02432.8
2179Warren County, IAIA57,33132.8
2180Webster County, MOMO43,05432.8
2181Anne Arundel County, MDMD603,38032.8
2182Clay County, WVWV7,53832.8
2183Auglaize County, OHOH45,90932.8
2184Pickaway County, OHOH62,97832.8
2185Adams County, OHOH27,86532.8
2186Elmore County, ALAL91,57732.8
2187Brown County, OHOH44,39732.8
2188Clinton County, OHOH42,30132.8
2189Limestone County, ALAL122,92832.8
2190Box Butte County, NENE10,49432.8
2191Pinal County, AZAZ539,38032.8
2192Clark County, ARAR20,93832.8
2193Hennepin County, MNMN1,284,78432.8
2194Bibb County, GAGA157,55632.8
2195Calhoun County, ALAL115,83432.8
2196Porter County, ININ176,04932.8
2197Hamilton County, OHOH838,41832.8
2198Galveston County, TXTX372,20732.8
2199Washington County, RIRI129,79532.8
2200Saratoga County, NYNY241,34332.8
2201Cascade County, MTMT85,02932.8
2202Saginaw County, MIMI187,68832.8
2203Jefferson County, WVWV63,10232.8
2204Lauderdale County, TNTN24,61732.8
2205Franklin County, ININ23,28632.8
2206Onondaga County, NYNY466,58432.8
2207Monroe County, MSMS33,31832.8
2208Morton County, KSKS2,47032.8
2209Cecil County, MDMD107,13132.8
2210Scott County, ININ25,05332.8
2211Lexington County, SCSC317,58832.8
2212Cook County, ILIL5,194,62532.8
2213Lorain County, OHOH323,21932.8
2214Warren County, OHOH257,18132.8
2215Harlan County, KYKY24,72532.8
2216Chambers County, TXTX57,59432.8
2217Stanley County, SDSD3,01832.8
2218Aiken County, SCSC181,51532.7
2219Tulsa County, OKOK698,78232.7
2220Forsyth County, GAGA282,80532.7
2221Caddo Parish, LALA224,22632.7
2222Franklin County, NYNY46,50032.7
2223Muskegon County, MIMI177,90132.7
2224Marathon County, WIWI139,43232.7
2225Boundary County, IDID13,99732.7
2226Colquitt County, GAGA47,43832.7
2227Hillsdale County, MIMI45,73832.7
2228Berrien County, GAGA18,93232.7
2229Avoyelles Parish, LALA37,94132.7
2230Clark County, IDID78332.7
2231Georgetown County, SCSC65,91232.7
2232Defiance County, OHOH38,29232.7
2233Morrison County, MNMN34,62032.7
2234Liberty County, TXTX121,36432.7
2235Dade County, GAGA16,15432.7
2236Fulton County, OHOH41,85332.7
2237Calloway County, KYKY39,42132.7
2238Christian County, MOMO96,72532.7
2239McIntosh County, GAGA11,98932.7
2240McCormick County, SCSC10,21532.7
2241Hansford County, TXTX4,94432.7
2242Baltimore, MDMD569,99732.7
2243Sagadahoc County, MEME37,97932.7
2244Washington County, OROR611,70832.7
2245Jerome County, IDID26,36232.7
2246Cook County, GAGA18,23232.7
2247Torrance County, NMNM16,10032.7
2248Chester County, TNTN17,99432.7
2249Marengo County, ALAL18,31132.7
2250Crawford County, ARAR62,65732.7
2251Johnson County, ININ174,26232.7
2252Lonoke County, ARAR76,66432.7
2253Calvert County, MDMD94,48432.7
2254Allen Parish, LALA22,67232.7
2255New Castle County, DEDE588,02632.6
2256Guadalupe County, TXTX201,11132.6
2257Miller County, ARAR42,35732.6
2258Greene County, MOMO309,28632.6
2259Morgan County, COCO30,30632.6
2260Union County, TNTN21,45032.6
2261Troup County, GAGA72,84432.6
2262Grenada County, MSMS20,86832.6
2263Edgecombe County, NCNC49,12132.6
2264Lenawee County, MIMI97,77932.6
2265Perry County, OHOH35,91832.6
2266Kenosha County, WIWI168,44832.6
2267Rockingham County, NHNH324,07732.6
2268Seneca County, OHOH54,52232.6
2269Davidson County, TNTN745,90432.6
2270Angelina County, TXTX88,15432.6
2271Callaway County, MOMO45,76532.6
2272Bleckley County, GAGA12,86632.6
2273Kings County, NYNY2,653,96332.6
2274Decatur County, ININ26,57632.6
2275Snyder County, PAPA39,65532.6
2276Orleans County, NYNY39,82532.6
2277Letcher County, KYKY19,95232.6
2278Menifee County, KYKY6,43032.6
2279Pemiscot County, MOMO14,46532.6
2280Oconee County, GAGA44,89332.6
2281Appling County, GAGA19,10032.6
2282St. Bernard Parish, LALA45,64232.6
2283Penobscot County, MEME157,96732.6
2284Lucas County, OHOH423,34732.6
2285Madison County, FLFL18,75932.6
2286Oklahoma County, OKOK822,12532.6
2287Greene County, GAGA21,36732.6
2288Carbon County, WYWY14,01332.6
2289Routt County, COCO25,32932.6
2290Arapahoe County, COCO673,82032.5
2291Winnebago County, WIWI174,21832.5
2292Pearl River County, MSMS59,36332.5
2293Schley County, GAGA4,59332.5
2294Lawrence County, SDSD29,45932.5
2295Lynn County, TXTX6,01732.5
2296Gordon County, GAGA61,70132.5
2297Warren County, MSMS41,75932.5
2298Wayne County, MIMI1,769,03832.5
2299Dawson County, TXTX11,77632.5
2300Gloucester County, NJNJ312,63832.5
2301King County, TXTX19232.5
2302Laurel County, KYKY63,74632.5
2303Glenn County, CACA28,14132.5
2304Sutter County, CACA98,78732.5
2305Thomas County, KSKS7,72532.5
2306Lawrence County, MSMS11,81932.5
2307Guadalupe County, NMNM4,34332.5
2308Neshoba County, MSMS28,73232.5
2309Escambia County, FLFL333,83432.5
2310Wolfe County, KYKY6,29832.5
2311Midland County, MIMI83,75432.5
2312Hardee County, FLFL25,93232.5
2313Union County, PAPA42,31332.5
2314Delaware County, IAIA17,67432.5
2315Pulaski County, ARAR404,61132.5
2316Polk County, IAIA516,54632.5
2317Jackson County, KYKY13,32532.5
2318Whitfield County, GAGA106,21232.4
2319Iosco County, MIMI25,26632.4
2320Madison County, OHOH46,98532.4
2321Taylor County, WIWI20,11832.4
2322Harding County, SDSD1,33132.4
2323Rio Blanco County, COCO6,68332.4
2324St. Tammany Parish, LALA279,10832.4
2325Greene County, OHOH174,32232.4
2326Shiawassee County, MIMI67,68132.4
2327Cross County, ARAR16,18632.4
2328Washington County, WIWI139,23832.4
2329Scott County, IAIA175,25932.4
2330Heard County, GAGA12,14932.4
2331Madison County, NENE36,10632.4
2332Simpson County, MSMS25,49832.4
2333Crosby County, TXTX4,85232.4
2334Pike County, KYKY54,72132.4
2335Pike County, MSMS38,71232.4
2336DuPage County, ILIL934,29832.4
2337Santa Rosa County, FLFL211,11532.4
2338Emanuel County, GAGA23,14732.4
2339Kemper County, MSMS8,60032.4
2340Randall County, TXTX152,35132.4
2341Wyoming County, NYNY39,74132.4
2342Marion County, GAGA7,67632.4
2343Campbell County, KYKY95,44132.4
2344Clinton County, MIMI80,43232.4
2345Whitley County, KYKY37,29732.4
2346Franklin Parish, LALA19,00232.4
2347Concordia Parish, LALA17,83632.4
2348McHenry County, ILIL317,75132.4
2349Bernalillo County, NMNM667,60132.4
2350Sutton County, TXTX3,20332.4
2351Liberty County, FLFL8,03532.4
2352Logan County, OKOK55,47332.4
2353Daggett County, UTUT93432.4
2354Fairfield County, SCSC20,34032.4
2355Jefferson Parish, LALA431,39832.4
2356Milwaukee County, WIWI924,21632.4
2357Mercer County, NDND8,44132.4
2358Howard County, MDMD339,18332.3
2359Grafton County, NHNH93,22532.3
2360Catahoula Parish, LALA8,22332.3
2361Frederick County, MDMD302,88332.3
2362Franklin County, MOMO108,09032.3
2363Mono County, CACA12,50532.3
2364McDuffie County, GAGA21,64032.3
2365Ben Hill County, GAGA17,09932.3
2366Osage County, MOMO13,61132.3
2367Morehouse Parish, LALA23,70532.3
2368Cass County, MOMO115,85932.3
2369Montcalm County, MIMI69,40632.3
2370Douglas County, COCO399,39632.3
2371Monroe County, MIMI156,00432.3
2372De Soto Parish, LALA27,38132.3
2373Island County, WAWA85,65732.3
2374Richland County, NDND16,73132.3
2375Chicot County, ARAR9,10732.3
2376Pasquotank County, NCNC42,20132.3
2377Dooly County, GAGA11,15632.3
2378Marion County, KYKY20,11532.3
2379Fayette County, TNTN45,07132.3
2380York County, SCSC306,88732.3
2381Clarion County, PAPA36,68032.3
2382Del Norte County, CACA26,41032.3
2383Honolulu County, HIHI988,70332.3
2384Brooks County, GAGA16,10132.3
2385Richland Parish, LALA19,58232.3
2386Hillsborough County, NHNH433,41532.2
2387Knox County, KYKY29,53232.2
2388Hall County, GAGA226,56832.2
2389Jones County, GAGA29,17132.2
2390Greene County, VAVA21,95832.2
2391Huron County, OHOH58,25032.2
2392Marion County, SCSC28,24232.2
2393Cape Girardeau County, MOMO83,99932.2
2394Randolph County, GAGA6,15632.2
2395Gray County, KSKS5,65232.2
2396Snohomish County, WAWA870,65632.2
2397Prowers County, COCO11,88432.2
2398Lawrence County, ALAL33,84332.2
2399Colusa County, CACA21,83632.2
2400Toombs County, GAGA27,54532.2
2401Chisago County, MNMN59,14232.2
2402Kenedy County, TXTX31932.2
2403St. Clair County, ILIL250,70832.2
2404Buchanan County, VAVA18,49232.2
2405Putnam County, TNTN86,61232.2
2406Lincoln County, ARAR12,76432.2
2407Chatham County, GAGA311,85532.2
2408Putnam County, ININ37,87632.2
2409Floyd County, KYKY34,40132.2
2410Wayne County, OHOH116,75832.2
2411Chippewa County, MIMI36,08132.2
2412Harford County, MDMD266,44632.2
2413Rockdale County, GAGA98,41632.2
2414Kendall County, ILIL145,47032.2
2415Montgomery County, TXTX781,19432.2
2416Jeff Davis County, GAGA15,21932.2
2417Marion County, MSMS24,00132.2
2418Canadian County, OKOK187,18932.2
2419Marlboro County, SCSC25,48832.2
2420Lauderdale County, MSMS70,31732.1
2421Maricopa County, AZAZ4,689,55832.1
2422Florence County, SCSC138,50432.1
2423Kosciusko County, ININ80,89232.1
2424Benton County, WAWA221,72232.1
2425Allen County, ININ402,32932.1
2426Butts County, GAGA27,21832.1
2427Cheatham County, TNTN42,77832.1
2428Ramsey County, MNMN541,62332.1
2429Genesee County, MIMI401,09332.1
2430Spalding County, GAGA70,77532.1
2431Jasper County, ININ33,89432.1
2432Grant County, KYKY26,18132.1
2433Hancock County, KYKY9,05032.1
2434Platte County, NENE35,64932.1
2435Bullock County, ALAL9,78032.1
2436Johnson County, TXTX218,04832.1
2437Fulton County, GAGA1,098,79132.1
2438Clay County, FLFL239,59332.1
2439Madera County, CACA167,92732.1
2440Mecklenburg County, NCNC1,233,38332.1
2441Lee County, MSMS83,73132.1
2442Juneau, AKAK31,60932.1
2443Dubois County, ININ44,01632.0
2444Santa Clara County, CACA1,914,39132.0
2445Paulding County, OHOH18,72732.0
2446Benton County, MSMS7,50232.0
2447Hill County, MTMT16,16732.0
2448Orange County, NYNY417,66932.0
2449Lamoille County, VTVT26,29432.0
2450Hale County, ALAL15,19432.0
2451Coweta County, GAGA160,24032.0
2452Chesterfield County, VAVA397,14832.0
2453Jefferson County, ARAR62,98732.0
2454DeKalb County, GAGA774,39432.0
2455Isanti County, MNMN44,38632.0
2456Jasper County, MSMS15,78532.0
2457Pope County, ARAR64,97632.0
2458Washington County, GAGA19,45332.0
2459Wilson County, TXTX56,13932.0
2460Madison County, ALAL433,51632.0
2461Lafayette County, FLFL8,79232.0
2462Grant County, WAWA105,72732.0
2463Union County, NCNC267,67432.0
2464Burleigh County, NDND103,25132.0
2465Beaver County, UTUT7,30132.0
2466Presidio County, TXTX5,43332.0
2467Mobile County, ALAL411,65832.0
2468Grant Parish, LALA22,07532.0
2469Sacramento County, CACA1,618,46032.0
2470Evans County, GAGA11,02831.9
2471DeKalb County, ININ44,53531.9
2472Cheyenne County, COCO1,71331.9
2473Lassen County, CACA28,11731.9
2474Washington County, MOMO23,81031.9
2475Laramie County, WYWY102,93831.9
2476Edwards County, TXTX1,37031.9
2477Cherokee County, OKOK49,19631.9
2478Adair County, OKOK19,82831.9
2479Ada County, IDID546,14131.9
2480Elkhart County, ININ208,77431.9
2481Indiana County, PAPA82,87831.9
2482Portsmouth, VAVA96,77731.9
2483Marion County, ININ992,19631.9
2484Bibb County, ALAL22,26231.9
2485Dawson County, GAGA35,36531.9
2486Henry County, GAGA264,92231.9
2487Wayne County, NCNC122,27831.9
2488Autauga County, ALAL61,92031.9
2489Allegan County, MIMI123,18831.9
2490Phelps County, MOMO45,24731.9
2491Effingham County, ILIL34,51931.9
2492Scott County, KYKY62,26231.9
2493Franklin County, VTVT51,17731.9
2494Beaverhead County, MTMT10,04331.9
2495Douglas County, NENE606,46031.9
2496Sedgwick County, KSKS538,43331.9
2497Houghton County, MIMI37,84231.9
2498Mercer County, OHOH42,73731.9
2499Converse County, WYWY13,82431.9
2500Lee County, ARAR8,02931.8
SHOWING 2,001–2,500 OF 3,122
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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS