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 2020, at 69.2%. South Dakota had the lowest, at 57.6%. The median was 60.2% and the figure for the United States was 60.9%. Source: the U.S. Census Bureau.

Highest69.2District of Columbia
Lowest57.6South Dakota
Median60.251 states
United States60.9History

All states, 2020

District of Columbia: 69.2 %District of Columbia69.2Colorado: 63 %Colorado63Massachusetts: 62.8 %Massachusetts62.8New York: 62.6 %New York62.6Rhode Island: 62.5 %Rhode Island62.5California: 62.4 %California62.4Alaska: 62.3 %Alaska62.3New Hampshire: 61.9 %New Hampshire61.9New Jersey: 61.9 %New Jersey61.9Maryland: 61.8 %Maryland61.8Washington: 61.8 %Washington61.8Georgia: 61.8 %Georgia61.8Virginia: 61.8 %Virginia61.8Illinois: 61.6 %Illinois61.6Connecticut: 61.4 %Connecticut61.4Texas: 61.3 %Texas61.3Nevada: 61.2 %Nevada61.2Vermont: 60.9 %Vermont60.9North Carolina: 60.7 %North Carolina60.7Tennessee: 60.7 %Tennessee60.7Oregon: 60.7 %Oregon60.7North Dakota: 60.5 %North Dakota60.5Michigan: 60.5 %Michigan60.5Pennsylvania: 60.4 %Pennsylvania60.4Alabama: 60.3 %Alabama60.3Kentucky: 60.2 %Kentucky60.2Minnesota: 60.2 %Minnesota60.2Wisconsin: 60.2 %Wisconsin60.2Louisiana: 60.1 %Louisiana60.1Indiana: 60 %Indiana60Ohio: 59.9 %Ohio59.9Missouri: 59.9 %Missouri59.9Hawaii: 59.6 %Hawaii59.6Maine: 59.5 %Maine59.5Mississippi: 59.5 %Mississippi59.5Utah: 59.4 %Utah59.4Oklahoma: 59.4 %Oklahoma59.4West Virginia: 59.3 %West Virginia59.3Delaware: 59.2 %Delaware59.2South Carolina: 59.2 %South Carolina59.2Kansas: 59.1 %Kansas59.1Arkansas: 59.1 %Arkansas59.1Florida: 59 %Florida59New Mexico: 58.8 %New Mexico58.8Nebraska: 58.8 %Nebraska58.8Wyoming: 58.8 %Wyoming58.8Iowa: 58.7 %Iowa58.7Arizona: 58.6 %Arizona58.6Montana: 58.5 %Montana58.5Idaho: 58 %Idaho58South Dakota: 57.6 %South Dakota57.6
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankStates2020 (%)Change on 2019
1District of Columbia69.2-1.8 pts
2Colorado63-0.2 pts
3Massachusetts62.8-0.5 pts
4New York62.6-0.4 pts
5Rhode Island62.5-0.4 pts
6California62.4-0.5 pts
7Alaska62.3-0.6 pts
8New Hampshire61.9-0.4 pts
9New Jersey61.9-0.2 pts
10Maryland61.8-0.4 pts
11Washington61.8-0.3 pts
12Georgia61.8-0.3 pts
13Virginia61.8-0.4 pts
14Illinois61.6-0.4 pts
15Connecticut61.4-0.4 pts
16Texas61.3-0.4 pts
17Nevada61.2-0.4 pts
18Vermont60.9-0.5 pts
19North Carolina60.7-0.5 pts
19Tennessee60.7-0.3 pts
21Oregon60.7-0.4 pts
22North Dakota60.5-0.5 pts
23Michigan60.5-0.4 pts
24Pennsylvania60.4-0.4 pts
25Alabama60.3-0.3 pts
26Kentucky60.2-0.4 pts
27Minnesota60.2-0.4 pts
27Wisconsin60.2-0.4 pts
29Louisiana60.1-0.5 pts
30Indiana60-0.3 pts
31Ohio59.9-0.5 pts
32Missouri59.9-0.5 pts
33Hawaii59.6-0.7 pts
34Maine59.5-0.5 pts
35Mississippi59.5-0.6 pts
36Utah59.4+0.1 pts
37Oklahoma59.4-0.4 pts
38West Virginia59.3-0.4 pts
39Delaware59.2-0.6 pts
40South Carolina59.2-0.5 pts
41Kansas59.1-0.4 pts
42Arkansas59.1-0.4 pts
43Florida59-0.6 pts
44New Mexico58.8-0.3 pts
45Nebraska58.8-0.3 pts
46Wyoming58.8-0.5 pts
47Iowa58.7-0.4 pts
48Arizona58.6-0.4 pts
49Montana58.5-0.4 pts
50Idaho58-0.1 pts
51South Dakota57.6-0.5 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, 2020) [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, 2020. 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=2020. 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, 2020. 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=2020.

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, 2020 [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=2020 (Accessed: 12 October 2026).

BibTeX
@misc{census_us_states_by_population_2020,
  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, 2020}},
  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=2020. 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, 2020
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=2020
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/us-states?period=2020.
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 69.2% in 2020, according to the U.S. Census Bureau.

Which state has the lowest population aged 18 to 64?

South Dakota, with 57.6% in 2020.

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