Data / Rankings / Population aged 18 to 64 / Counties in Missouri

Counties in Missouri by population aged 18 to 64

Pulaski County had the highest population aged 18 to 64 of 115 counties in 2024, at 67%. Hickory County had the lowest, at 47.3%. The median was 55.7% and the figure for Missouri was 58.9%. Source: the U.S. Census Bureau.

Highest67Pulaski County
Lowest47.3Hickory County
Median55.7115 counties
Missouri58.9History

Top 40 counties, 2024

Pulaski County: 67 %Pulaski County67St. Louis city: 66.6 %St. Louis city66.6Boone County: 65.1 %Boone County65.1Adair County: 64.2 %Adair County64.2Johnson County: 62.3 %Johnson County62.3Greene County: 61.7 %Greene County61.7Phelps County: 61.3 %Phelps County61.3Nodaway County: 61.2 %Nodaway County61.2Jackson County: 60.9 %Jackson County60.9Platte County: 60.5 %Platte County60.5Clay County: 60.5 %Clay County60.5St. Francois County: 60.5 %St. Francois County60.5Callaway County: 60.2 %Callaway County60.2Cape Girardeau County: 59.7 %Cape Girardeau County59.7St. Charles County: 59.6 %St. Charles County59.6Randolph County: 59.6 %Randolph County59.6Jefferson County: 59.6 %Jefferson County59.6Saline County: 59.4 %Saline County59.4Lincoln County: 59.2 %Lincoln County59.2Cole County: 59 %Cole County59Jasper County: 58.9 %Jasper County58.9Buchanan County: 58.8 %Buchanan County58.8Lewis County: 58.6 %Lewis County58.6McDonald County: 58.4 %McDonald County58.4Warren County: 58 %Warren County58Cass County: 57.9 %Cass County57.9Howard County: 57.8 %Howard County57.8Mississippi County: 57.7 %Mississippi County57.7Washington County: 57.7 %Washington County57.7Osage County: 57.6 %Osage County57.6St. Louis County: 57.6 %St. Louis County57.6Franklin County: 57.1 %Franklin County57.1DeKalb County: 57 %DeKalb County57Christian County: 57 %Christian County57Pike County: 56.9 %Pike County56.9Cooper County: 56.9 %Cooper County56.9Madison County: 56.9 %Madison County56.9Marion County: 56.9 %Marion County56.9Lafayette County: 56.8 %Lafayette County56.8Butler County: 56.7 %Butler County56.7
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2024 (%)Change on 2023
1Pulaski County67-0.2 pts
2St. Louis city66.6-0.4 pts
3Boone County65.1-0.2 pts
4Adair County64.2-0.2 pts
5Johnson County62.3-0.4 pts
6Greene County61.7-0.1 pts
7Phelps County61.3-0.3 pts
8Nodaway County61.2-0.7 pts
9Jackson County60.9-0.2 pts
10Platte County60.5-0.1 pts
11Clay County60.50 pts
12St. Francois County60.5-0.3 pts
13Callaway County60.2-0.2 pts
14Cape Girardeau County59.7-0.3 pts
15St. Charles County59.6-0.1 pts
16Randolph County59.6+0.5 pts
17Jefferson County59.6-0.2 pts
18Saline County59.4-0.2 pts
19Lincoln County59.2-0.1 pts
20Cole County59-0.2 pts
21Jasper County58.9-0.1 pts
22Buchanan County58.8-0.1 pts
23Lewis County58.6-0 pts
24McDonald County58.4-0.2 pts
25Warren County58-0.3 pts
26Cass County57.9-0 pts
27Howard County57.8-0.4 pts
28Mississippi County57.7+0.3 pts
29Washington County57.7-0.1 pts
30Osage County57.6-0.2 pts
31St. Louis County57.6-0.3 pts
32Franklin County57.1-0.4 pts
33DeKalb County57+0.1 pts
34Christian County57+0.1 pts
35Pike County56.9-0.3 pts
36Cooper County56.9-0.1 pts
37Madison County56.9-0.2 pts
38Marion County56.9-0.2 pts
39Lafayette County56.80 pts
40Butler County56.7-0.2 pts
41Ray County56.7-0.3 pts
42Pettis County56.5-0 pts
43Livingston County56.4-0 pts
44Stoddard County56.4-0.1 pts
45Perry County56.3-0.1 pts
46Scott County56.3-0.3 pts
47Polk County56.3-0.1 pts
48Moniteau County56.3+0.1 pts
49Clinton County56.3-0.2 pts
50Sullivan County56.3-0.1 pts
51Laclede County56.3-0.2 pts
52Taney County56.2-0.4 pts
53Newton County56.1-0.1 pts
54Maries County56-0.5 pts
55Ste. Genevieve County56-0.7 pts
56Texas County55.9-0.4 pts
57Bates County55.7-0.1 pts
58Montgomery County55.7-0.3 pts
59Webster County55.7-0.1 pts
60Andrew County55.5-0.6 pts
61Miller County55.5-0.2 pts
62Crawford County55.3-0.3 pts
63Reynolds County55.3-0.4 pts
64Iron County55.2+0.3 pts
65Ralls County55.2-0.3 pts
66Lawrence County55.2-0.1 pts
67New Madrid County55.1-0.1 pts
68Vernon County55-0.2 pts
69Caldwell County54.9-0.1 pts
70Audrain County54.8-0.3 pts
71Howell County54.80 pts
72Dallas County54.7-0.3 pts
73Dunklin County54.6-0.3 pts
74Barton County54.6-0 pts
75Bollinger County54.4-0.2 pts
76Barry County54.2-0.5 pts
77Pemiscot County54.1-0.7 pts
78Henry County54-0.3 pts
79Linn County54+0.1 pts
80Carroll County53.9-0.4 pts
81Dent County53.9-0.4 pts
82Wright County53.7-0.1 pts
83Dade County53.5+0.3 pts
84Gasconade County53.5-0.6 pts
85Macon County53.3-0.1 pts
86Atchison County53.1+0.1 pts
87Ozark County53-0 pts
88Wayne County52.9-0.1 pts
89Daviess County52.9+0.1 pts
90Clark County52.8-0.3 pts
91Carter County52.7-0.5 pts
92Camden County52.7-0.5 pts
93Morgan County52.6-0.1 pts
94Worth County52.5-1.5 pts
95Holt County52.5+0.2 pts
96Shelby County52.4-0.5 pts
97Monroe County52.4-0.2 pts
98Gentry County52.3-0.2 pts
99St. Clair County52.3-0.1 pts
100Ripley County52.3+0.1 pts
101Knox County52.2+0.1 pts
102Harrison County51.6-0.3 pts
103Cedar County51.5-0 pts
104Chariton County51.5-0.4 pts
105Grundy County51.4-0.3 pts
106Shannon County51.4-0.8 pts
107Oregon County51.30 pts
108Putnam County51.3-0.8 pts
109Benton County50.9-0.3 pts
110Stone County50.2-0.7 pts
111Mercer County50.2-1.5 pts
112Schuyler County50.2-0.2 pts
113Douglas County50.10 pts
114Scotland County49.6-0.7 pts
115Hickory County47.3-1 pts

Other periods

About this ranking

Residents aged 18 to 64 as a percentage of total population on 1 July. United States: Census Bureau county population estimates by age; states and the nation are sums of their counties.

Not comparable with working-age shares for ages 15 to 64 used in EU and World Bank statistics.

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. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties (Counties in Missouri by population aged 18 to 64, 2024) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in Missouri by population aged 18 to 64, 2024. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/population-18-64/missouri-counties?period=2024. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Counties in Missouri by population aged 18 to 64, 2024. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/population-18-64/missouri-counties?period=2024.

Harvard

U.S. Census Bureau (2026) Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in Missouri by population aged 18 to 64, 2024 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/population-18-64/missouri-counties?period=2024 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_missouri_by_2024,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in Missouri by population aged 18 to 64, 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.census.gov/programs-surveys/popest/data/data-sets.html},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/population-18-64/missouri-counties?period=2024. Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in Missouri by population aged 18 to 64, 2024
PY  - 2026
DA  - 2026/06/25
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2  - https://invokely.ai/rankings/population-18-64/missouri-counties?period=2024
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/missouri-counties?period=2024.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest population aged 18 to 64?

Pulaski County, with 67% in 2024, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Hickory County, with 47.3% in 2024.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Retrieved 2026-10-12.

Population aged 18 to 64: other rankings

Counties in Missouri: more rankings