Data / Rankings / Median age / Counties in Missouri

Counties in Missouri by median age

Hickory County had the highest median age of 115 counties in 2023, at 55.2 years. Pulaski County had the lowest, at 27.5 years. The median was 40.8 years and the figure for Missouri was 38.9 years. Source: the U.S. Census Bureau.

Highest55.2Hickory County
Lowest27.5Pulaski County
Median40.8115 counties
Missouri38.9History

Top 40 counties, 2023

CSVChart (SVG)

Hickory CountyHickory County: 55.2 years55.2Benton CountyBenton County: 54.4 years54.4Stone CountyStone County: 54.4 years54.4Camden CountyCamden County: 53 years53Ozark CountyOzark County: 51.9 years51.9Worth CountyWorth County: 49 years49Wayne CountyWayne County: 48.2 years48.2Holt CountyHolt County: 47.8 years47.8Atchison CountyAtchison County: 47.7 years47.7St. Clair CountySt. Clair County: 47.2 years47.2Dade CountyDade County: 46.7 years46.7Douglas CountyDouglas County: 46.6 years46.6Gasconade CountyGasconade County: 46.3 years46.3Reynolds CountyReynolds County: 46.1 years46.1Monroe CountyMonroe County: 45.8 years45.8Ralls CountyRalls County: 45.8 years45.8Putnam CountyPutnam County: 45.6 years45.6Shannon CountyShannon County: 45.5 years45.5Maries CountyMaries County: 45.4 years45.4Morgan CountyMorgan County: 45.4 years45.4Iron CountyIron County: 45.3 years45.3Chariton CountyChariton County: 45.2 years45.2Oregon CountyOregon County: 44.6 years44.6Cedar CountyCedar County: 44.5 years44.5Bollinger CountyBollinger County: 44.3 years44.3Sullivan CountySullivan County: 44.2 years44.2Henry CountyHenry County: 44.1 years44.1Dent CountyDent County: 43.8 years43.8Montgomery CountyMontgomery County: 43.8 years43.8Carroll CountyCarroll County: 43.7 years43.7Shelby CountyShelby County: 43.6 years43.6Clark CountyClark County: 43.5 years43.5Ste. Genevieve CountySte. Genevieve County: 43.2 years43.2Barry CountyBarry County: 43 years43Macon CountyMacon County: 42.9 years42.9Texas CountyTexas County: 42.8 years42.8Caldwell CountyCaldwell County: 42.7 years42.7Dallas CountyDallas County: 42.5 years42.5Linn CountyLinn County: 42.4 years42.4Crawford CountyCrawford County: 42.3 years42.3
years. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2023
years		Change on 2022
1Hickory County55.2-0.5
2Benton County54.4+0.3
2Stone County54.4-0.2
4Camden County53+0.4
5Ozark County51.9-0.7
6Worth County49+0.3
7Wayne County48.2-1
8Holt County47.80
9Atchison County47.7-0.4
10St. Clair County47.2-1
11Dade County46.7+0.2
12Douglas County46.6-0.4
13Gasconade County46.30
14Reynolds County46.1-0.1
15Monroe County45.80
15Ralls County45.8+0.3
17Putnam County45.6-0.5
18Shannon County45.5-1.4
19Maries County45.4+0.2
19Morgan County45.4-0.6
21Iron County45.3+0.2
22Chariton County45.2-0.5
23Oregon County44.6-0.1
24Cedar County44.5-0.3
25Bollinger County44.3-0.4
26Sullivan County44.2+0.3
27Henry County44.1-0.1
28Dent County43.8+0.1
28Montgomery County43.80
30Carroll County43.70
31Shelby County43.6+0.7
32Clark County43.5+0.7
33Ste. Genevieve County43.2-0.8
34Barry County43-0.2
35Macon County42.9-0.1
36Texas County42.8+0.2
37Caldwell County42.70
38Dallas County42.5+0.8
39Linn County42.4+0.4
40Crawford County42.30
40DeKalb County42.3+0.6
42Mississippi County42.2+0.1
42Ray County42.2+0.2
44Andrew County42.1+0.6
44Clinton County42.1+1.2
46Taney County42-0.3
47Stoddard County41.9+0.6
48New Madrid County41.80
49Vernon County41.7-0.1
50Perry County41.6+0.2
51Franklin County41.4+0.5
51Madison County41.40
51Ripley County41.4+0.3
54Wright County41.2+0.1
55Harrison County40.9-1.3
55Lafayette County40.9-0.5
57Bates County40.8+0.1
57Mercer County40.8-0.9
57Miller County40.8-0.3
57Osage County40.8-0.6
57Warren County40.8-0.5
62Barton County40.6-0.1
62Daviess County40.6+0.2
64Butler County40.5-0.2
64Gentry County40.5+0.3
66Audrain County40.3-0.1
67Jefferson County40.2+0.3
67Newton County40.20
67St. Louis County40.20
67Washington County40.2+0.4
71Cass County40.1+0.2
71Howell County40.1-0.6
71Randolph County40.1+0.3
74Cooper County39.9+1.1
74Livingston County39.9+0.7
76Knox County39.8-2.1
77Cole County39.7+0.1
77Grundy County39.7-0.5
77Pike County39.7-0.2
80Carter County39.6-2.4
80Laclede County39.6+0.1
80St. Charles County39.6+0.2
83Dunklin County39.5+0.1
84Marion County39.4+0.4
84Scott County39.40
86Callaway County39.3-0.3
86Christian County39.3+0.2
88St. Francois County39.2-0.2
89Lawrence County39+0.3
90Buchanan County38.9+0.3
90Pemiscot County38.9-0.3
90Polk County38.90
93Schuyler County38.8-0.6
94Platte County38.70
95Howard County38.30
96Lewis County38.2-0.9
97McDonald County38.1-0.1
98Moniteau County38+0.4
99Pettis County37.9-0.1
100Clay County37.6+0.1
101Lincoln County37.5+0.4
102Cape Girardeau County37+0.1
103Jackson County36.9-0.1
103Webster County36.9+0.1
105Jasper County36.60
105St. Louis city36.6+0.1
107Greene County36.4+0.1
108Scotland County36.3+0.3
109Phelps County36.2+0.2
110Saline County35.4-0.1
111Nodaway County33.9+0.4
112Boone County32.2+0.4
113Johnson County31.3+0.3
114Adair County29.8+0.8
115Pulaski County27.5-0.2

Other periods

About this ranking

Age that divides the resident population into two halves of equal size. Spain and the EU: on 1 January. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B01002: median age, total population. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b01002.dat. Retrieved 2026-10-08.

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Questions

Which county has the highest median age?

Hickory County, with 55.2 years in 2023, according to the U.S. Census Bureau.

Which county has the lowest median age?

Pulaski County, with 27.5 years in 2023.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B01002: median age, total population. Retrieved 2026-10-08.

Median age: other rankings

Counties in Missouri: more rankings