Data / Rankings / Population aged 18 to 64 / US states

US states by population aged 18 to 64

District of Columbia had the highest population aged 18 to 64 of 51 states in 2015, at 71.4%. Idaho had the lowest, at 58.8%. The median was 61.8% and the figure for the United States was 62.2%. Source: the U.S. Census Bureau.

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Highest71.4District of Columbia
Lowest58.8Idaho
Median61.851 states
United States62.2History

Map of states, 2015

Alabama: 61.6 %Alaska: 64.7 %Arizona: 59.6 %Arkansas: 60.3 %California: 63.5 %Colorado: 63.8 %Connecticut: 62.7 %Delaware: 61.4 %District of Columbia: 71.4 %Florida: 60.4 %Georgia: 62.7 %Hawaii: 61.8 %Idaho: 58.8 %Illinois: 62.8 %Indiana: 61.3 %Iowa: 60.3 %Kansas: 60.5 %Kentucky: 61.8 %Louisiana: 62 %Maine: 61.7 %Maryland: 63.5 %Massachusetts: 64.1 %Michigan: 62 %Minnesota: 61.9 %Mississippi: 61 %Missouri: 61.4 %Montana: 60.7 %Nebraska: 60.3 %Nevada: 62.1 %New Hampshire: 63.6 %New Jersey: 62.7 %New Mexico: 60.3 %New York: 63.8 %North Carolina: 62 %North Dakota: 62.9 %Ohio: 61.4 %Oklahoma: 60.6 %Oregon: 62 %Pennsylvania: 62 %Rhode Island: 63.9 %South Carolina: 61.2 %South Dakota: 59.7 %Tennessee: 61.8 %Texas: 62 %Utah: 59 %Vermont: 63.1 %Virginia: 63.4 %Washington: 63 %West Virginia: 61.3 %Wisconsin: 61.8 %Wyoming: 61.3 %
  • Under 60
  • 60 to 61
  • 61 to 62
  • 62 to 63
  • 63 and over
%, 2015. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All states, 2015

District of Columbia: 71.4 %District of Columbia71.4Alaska: 64.7 %Alaska64.7Massachusetts: 64.1 %Massachusetts64.1Rhode Island: 63.9 %Rhode Island63.9New York: 63.8 %New York63.8Colorado: 63.8 %Colorado63.8New Hampshire: 63.6 %New Hampshire63.6California: 63.5 %California63.5Maryland: 63.5 %Maryland63.5Virginia: 63.4 %Virginia63.4Vermont: 63.1 %Vermont63.1Washington: 63 %Washington63North Dakota: 62.9 %North Dakota62.9Illinois: 62.8 %Illinois62.8New Jersey: 62.7 %New Jersey62.7Connecticut: 62.7 %Connecticut62.7Georgia: 62.7 %Georgia62.7Nevada: 62.1 %Nevada62.1North Carolina: 62 %North Carolina62Oregon: 62 %Oregon62Texas: 62 %Texas62Louisiana: 62 %Louisiana62Pennsylvania: 62 %Pennsylvania62Michigan: 62 %Michigan62Minnesota: 61.9 %Minnesota61.9Tennessee: 61.8 %Tennessee61.8Wisconsin: 61.8 %Wisconsin61.8Kentucky: 61.8 %Kentucky61.8Hawaii: 61.8 %Hawaii61.8Maine: 61.7 %Maine61.7Alabama: 61.6 %Alabama61.6Ohio: 61.4 %Ohio61.4Delaware: 61.4 %Delaware61.4Missouri: 61.4 %Missouri61.4Wyoming: 61.3 %Wyoming61.3Indiana: 61.3 %Indiana61.3West Virginia: 61.3 %West Virginia61.3South Carolina: 61.2 %South Carolina61.2Mississippi: 61 %Mississippi61Montana: 60.7 %Montana60.7Oklahoma: 60.6 %Oklahoma60.6Kansas: 60.5 %Kansas60.5Florida: 60.4 %Florida60.4Iowa: 60.3 %Iowa60.3Nebraska: 60.3 %Nebraska60.3New Mexico: 60.3 %New Mexico60.3Arkansas: 60.3 %Arkansas60.3South Dakota: 59.7 %South Dakota59.7Arizona: 59.6 %Arizona59.6Utah: 59 %Utah59Idaho: 58.8 %Idaho58.8District of Columbia: 71.4 %District of Columbia71.4Alaska: 64.7 %Alaska64.7Massachusetts: 64.1 %Massachusetts64.1Rhode Island: 63.9 %Rhode Island63.9New York: 63.8 %New York63.8Colorado: 63.8 %Colorado63.8New Hampshire: 63.6 %New Hampshire63.6California: 63.5 %California63.5Maryland: 63.5 %Maryland63.5Virginia: 63.4 %Virginia63.4Vermont: 63.1 %Vermont63.1Washington: 63 %Washington63North Dakota: 62.9 %North Dakota62.9Illinois: 62.8 %Illinois62.8New Jersey: 62.7 %New Jersey62.7Connecticut: 62.7 %Connecticut62.7Georgia: 62.7 %Georgia62.7Nevada: 62.1 %Nevada62.1North Carolina: 62 %North Carolina62Oregon: 62 %Oregon62Texas: 62 %Texas62Louisiana: 62 %Louisiana62Pennsylvania: 62 %Pennsylvania62Michigan: 62 %Michigan62Minnesota: 61.9 %Minnesota61.9Tennessee: 61.8 %Tennessee61.8Wisconsin: 61.8 %Wisconsin61.8Kentucky: 61.8 %Kentucky61.8Hawaii: 61.8 %Hawaii61.8Maine: 61.7 %Maine61.7Alabama: 61.6 %Alabama61.6Ohio: 61.4 %Ohio61.4Delaware: 61.4 %Delaware61.4Missouri: 61.4 %Missouri61.4Wyoming: 61.3 %Wyoming61.3Indiana: 61.3 %Indiana61.3West Virginia: 61.3 %West Virginia61.3South Carolina: 61.2 %South Carolina61.2Mississippi: 61 %Mississippi61Montana: 60.7 %Montana60.7Oklahoma: 60.6 %Oklahoma60.6Kansas: 60.5 %Kansas60.5Florida: 60.4 %Florida60.4Iowa: 60.3 %Iowa60.3Nebraska: 60.3 %Nebraska60.3New Mexico: 60.3 %New Mexico60.3Arkansas: 60.3 %Arkansas60.3South Dakota: 59.7 %South Dakota59.7Arizona: 59.6 %Arizona59.6Utah: 59 %Utah59Idaho: 58.8 %Idaho58.8
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankStates2015 (%)Change on 2014
1District of Columbia71.4-0.2 pts
2Alaska64.7-0.4 pts
3Massachusetts64.1-0.2 pts
4Rhode Island63.9-0.1 pts
5New York63.8-0.2 pts
6Colorado63.8-0.1 pts
7New Hampshire63.6-0.2 pts
8California63.5-0.1 pts
9Maryland63.5-0.2 pts
10Virginia63.4-0.3 pts
11Vermont63.1-0.4 pts
12Washington63-0.2 pts
13North Dakota62.9-0.2 pts
14Illinois62.8-0.2 pts
15New Jersey62.7-0.1 pts
16Connecticut62.7-0.1 pts
17Georgia62.7-0.2 pts
18Nevada62.1-0.3 pts
19North Carolina62-0.2 pts
20Oregon62-0.3 pts
21Texas62-0.1 pts
22Louisiana62-0.3 pts
23Pennsylvania62-0.2 pts
24Michigan62-0.2 pts
25Minnesota61.9-0.3 pts
26Tennessee61.8-0.2 pts
27Wisconsin61.8-0.3 pts
28Kentucky61.8-0.3 pts
29Hawaii61.8-0.4 pts
30Maine61.7-0.4 pts
31Alabama61.6-0.3 pts
32Ohio61.4-0.2 pts
33Delaware61.4-0.3 pts
34Missouri61.4-0.2 pts
35Wyoming61.3-0.6 pts
36Indiana61.3-0.3 pts
37West Virginia61.3-0.4 pts
38South Carolina61.2-0.4 pts
39Mississippi61-0.3 pts
40Montana60.7-0.4 pts
41Oklahoma60.6-0.2 pts
42Kansas60.5-0.2 pts
43Florida60.4-0.2 pts
44Iowa60.3-0.3 pts
45Nebraska60.3-0.3 pts
46New Mexico60.3-0.4 pts
47Arkansas60.3-0.2 pts
48South Dakota59.7-0.4 pts
49Arizona59.6-0.3 pts
50Utah59-0 pts
51Idaho58.8-0.3 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 states 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 (US states 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, US states 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/us-states?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. US states 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/us-states?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, US states 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/us-states?period=2015 (Accessed: 12 October 2026).

BibTeX
@misc{census_us_states_by_population_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: US states 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/us-states?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: US states 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/us-states?period=2015
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/us-states?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 state has the highest population aged 18 to 64?

District of Columbia, with 71.4% in 2015, according to the U.S. Census Bureau.

Which state has the lowest population aged 18 to 64?

Idaho, with 58.8% 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

US states: more rankings