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 2015, at 69.2%. Hickory County had the lowest, at 49.2%. The median was 58% and the figure for Missouri was 61.4%. Source: the U.S. Census Bureau.

Highest69.2Pulaski County
Lowest49.2Hickory County
Median58115 counties
Missouri61.4History

Top 40 counties, 2015

Pulaski County: 69.2 %Pulaski County69.2St. Louis city: 68.9 %St. Louis city68.9Boone County: 68.5 %Boone County68.5DeKalb County: 68 %DeKalb County68Adair County: 66.6 %Adair County66.6Nodaway County: 66.5 %Nodaway County66.5Johnson County: 65.5 %Johnson County65.5Phelps County: 63.7 %Phelps County63.7Callaway County: 63.7 %Callaway County63.7Greene County: 63.5 %Greene County63.5St. Francois County: 63.1 %St. Francois County63.1Cole County: 62.8 %Cole County62.8Platte County: 62.7 %Platte County62.7Cape Girardeau County: 62.7 %Cape Girardeau County62.7Jackson County: 62.5 %Jackson County62.5Jefferson County: 62.3 %Jefferson County62.3Buchanan County: 62.2 %Buchanan County62.2Randolph County: 62.1 %Randolph County62.1St. Charles County: 61.9 %St. Charles County61.9Clay County: 61.7 %Clay County61.7Washington County: 61.4 %Washington County61.4Cooper County: 61.4 %Cooper County61.4Mississippi County: 61.3 %Mississippi County61.3Lincoln County: 61 %Lincoln County61St. Louis County: 60.9 %St. Louis County60.9Pike County: 60.8 %Pike County60.8Howard County: 60.7 %Howard County60.7Ste. Genevieve County: 60.5 %Ste. Genevieve County60.5Saline County: 60.5 %Saline County60.5Franklin County: 60.4 %Franklin County60.4Jasper County: 60.2 %Jasper County60.2Osage County: 59.6 %Osage County59.6Lewis County: 59.6 %Lewis County59.6McDonald County: 59.6 %McDonald County59.6Warren County: 59.5 %Warren County59.5Marion County: 59.4 %Marion County59.4Ray County: 59.4 %Ray County59.4Audrain County: 59.3 %Audrain County59.3Livingston County: 59.3 %Livingston County59.3Moniteau County: 59.3 %Moniteau County59.3
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2015 (%)Change on 2014
1Pulaski County69.20 pts
2St. Louis city68.9+0.1 pts
3Boone County68.5-0.3 pts
4DeKalb County68-0.2 pts
5Adair County66.6-0.4 pts
6Nodaway County66.5-0.6 pts
7Johnson County65.5-0.2 pts
8Phelps County63.7-0.2 pts
9Callaway County63.7-0.3 pts
10Greene County63.5-0.2 pts
11St. Francois County63.1-0.2 pts
12Cole County62.8-0.3 pts
13Platte County62.7-0.4 pts
14Cape Girardeau County62.7-0.4 pts
15Jackson County62.5-0.2 pts
16Jefferson County62.3-0.3 pts
17Buchanan County62.2-0.2 pts
18Randolph County62.1-0.1 pts
19St. Charles County61.9-0.2 pts
20Clay County61.7-0.2 pts
21Washington County61.4-0.2 pts
22Cooper County61.4-0.3 pts
23Mississippi County61.3-0.2 pts
24Lincoln County61-0.1 pts
25St. Louis County60.9-0.2 pts
26Pike County60.8-0.6 pts
27Howard County60.7-0.9 pts
28Ste. Genevieve County60.5-0 pts
29Saline County60.5-0.1 pts
30Franklin County60.4-0.3 pts
31Jasper County60.2-0.1 pts
32Osage County59.6-0 pts
33Lewis County59.60 pts
34McDonald County59.60 pts
35Warren County59.5-0.1 pts
36Marion County59.4-0.2 pts
37Ray County59.4-0.1 pts
38Audrain County59.30 pts
39Livingston County59.3-0.5 pts
40Moniteau County59.3-0.4 pts
41Pettis County59.2-0.3 pts
42Cass County59.1-0.2 pts
43Scott County59.1-0.5 pts
44Christian County58.9-0.3 pts
45Perry County58.9-0.3 pts
46Taney County58.9-0.6 pts
47Butler County58.7-0.3 pts
48Andrew County58.6-0.7 pts
49Texas County58.5-0.4 pts
50Lafayette County58.5-0.3 pts
51Newton County58.4-0.2 pts
52Laclede County58.4-0.1 pts
53Miller County58.3-0.6 pts
54Stoddard County58.3-0.4 pts
55Bollinger County58.2-0.6 pts
56Crawford County58.2-0.2 pts
57New Madrid County58-0.2 pts
58Clinton County58-0.3 pts
59Maries County58-0.2 pts
60Ralls County58-0.7 pts
61Madison County57.9-0.2 pts
62Webster County57.9-0 pts
63Polk County57.8-0.4 pts
64Pemiscot County57.8-0 pts
65Vernon County57.8-0.1 pts
66Sullivan County57.5-0.5 pts
67Barry County57.4-0.2 pts
68Ripley County57.4-0.3 pts
69Iron County57.3-0.7 pts
70Dunklin County57.3+0.3 pts
71Carter County57.3-0.5 pts
72Montgomery County57.2-0.5 pts
73Shannon County57-0.7 pts
74Gasconade County56.9-0.1 pts
75Howell County56.9-0.1 pts
76Dallas County56.9-0.3 pts
77Bates County56.8-0.3 pts
78Barton County56.8+0.1 pts
79Wayne County56.8-0.1 pts
80Henry County56.6-0.3 pts
81Dent County56.6-0.5 pts
82Caldwell County56.5-0.4 pts
83Lawrence County56.5-0.1 pts
84Carroll County56.50 pts
85Reynolds County56.3-0.3 pts
86Clark County56.3-0.7 pts
87Wright County56.2+0.1 pts
88Holt County56.1-0.5 pts
89Camden County55.9-0.5 pts
90Dade County55.8-0.3 pts
91Worth County55.7+0.4 pts
92Atchison County55.7-0.7 pts
93Shelby County55.6-0.6 pts
94Douglas County55.5-0.8 pts
95Linn County55.4-0.4 pts
96Monroe County55.4-0.7 pts
97Mercer County55.4-0.2 pts
98Gentry County55.2-0.4 pts
99Chariton County55.1-0.3 pts
100Macon County55.1-0.2 pts
101St. Clair County54.8-0.2 pts
102Grundy County54.7-0.1 pts
103Oregon County54.6-1.1 pts
104Ozark County54.4-0.1 pts
105Stone County54.4-0 pts
106Daviess County54.2-0.2 pts
107Morgan County54.2-0.5 pts
108Harrison County54-0.4 pts
109Knox County53.9-0.1 pts
110Putnam County53.7-0.8 pts
111Schuyler County53.5-0.4 pts
112Benton County53.2-0.2 pts
113Scotland County52.6-0.1 pts
114Cedar County52.4-0.5 pts
115Hickory County49.2-0.9 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, 2015) [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, 2015. 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=2015. 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, 2015. 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=2015.

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, 2015 [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=2015 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_missouri_by_2015,
  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, 2015}},
  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=2015. 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, 2015
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=2015
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/missouri-counties?period=2015.
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 69.2% in 2015, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Hickory County, with 49.2% in 2015.

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