US states by population aged 18 to 64

District of Columbia had the highest population aged 18 to 64 of 51 states in 2024, at 68.6%. South Dakota had the lowest, at 57.2%. The median was 59.2% and the figure for the United States was 60.2%. Source: the U.S. Census Bureau.

Highest68.6District of Columbia

Lowest57.2South Dakota

Median59.251 states

United States60.2History

All states, 2024

%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

Rank	States	2024 (%)	Change on 2023
1	District of Columbia	68.6	-0 pts
2	Colorado	62.8	-0 pts
3	Massachusetts	61.9	-0.2 pts
4	California	61.8	-0.1 pts
5	Rhode Island	61.6	-0.2 pts
6	New York	61.5	-0.2 pts
7	Washington	61.4	-0 pts
8	Georgia	61.3	-0.1 pts
9	Texas	61.2	0 pts
10	Alaska	61.1	-0.2 pts
11	Nevada	61.1	+0.1 pts
12	New Jersey	60.9	-0.2 pts
13	Illinois	60.8	-0.1 pts
14	Virginia	60.8	-0.2 pts
15	Utah	60.6	+0.4 pts
16	Maryland	60.6	-0.3 pts
17	Connecticut	60.4	-0.3 pts
18	North Carolina	60.1	-0.1 pts
19	New Hampshire	60.1	-0.5 pts
20	Oregon	60	-0.1 pts
21	Tennessee	60	-0.2 pts
22	North Dakota	59.4	-0.2 pts
23	Michigan	59.4	-0.2 pts
24	Vermont	59.3	-0.4 pts
25	Alabama	59.3	-0.2 pts
26	Kentucky	59.2	-0.2 pts
27	Pennsylvania	59.2	-0.3 pts
28	Indiana	59.1	-0.2 pts
29	Minnesota	59.1	-0.2 pts
30	Wisconsin	59	-0.3 pts
31	Missouri	58.9	-0.2 pts
32	Oklahoma	58.9	-0.1 pts
33	Ohio	58.8	-0.2 pts
34	Louisiana	58.7	-0.3 pts
35	Arkansas	58.6	-0.1 pts
36	Florida	58.5	-0.1 pts
37	Arizona	58.5	0 pts
38	South Carolina	58.5	-0.1 pts
39	Mississippi	58.5	-0.2 pts
40	Maine	58.4	-0.3 pts
41	New Mexico	58.3	-0.1 pts
42	Kansas	58.3	-0.1 pts
43	West Virginia	58.1	-0.2 pts
44	Nebraska	58.1	-0.1 pts
45	Hawaii	58.1	-0.3 pts
46	Idaho	58	0 pts
47	Iowa	57.9	-0.2 pts
48	Delaware	57.8	-0.3 pts
48	Wyoming	57.8	-0.2 pts
50	Montana	57.8	-0.2 pts
51	South Dakota	57.2	-0.1 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 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, 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, US states 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/us-states?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. US states 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/us-states?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, US states 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/us-states?period=2024 (Accessed: 12 October 2026).

BibTeX

@misc{census_us_states_by_population_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: US states 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/us-states?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: US states 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/us-states?period=2024
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/us-states?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  -

Embed this chart

Paste this code into a web page or a blog post. The chart shows the latest figures as they are published, with the source and a link back to this page.

Embed code

<iframe src="https://invokely.ai/embed/rankings/population-18-64/us-states?period=2024" width="760" height="500" title="US states by population aged 18 to 64, 2024, chart from Invokely" loading="lazy" style="border:0;width:100%;max-width:760px" referrerpolicy="strict-origin-when-cross-origin"></iframe>

Sites that read oEmbed links, such as WordPress, can show the chart when you paste the link to this page.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank US states by population aged 18 to 64 using official data, and cite the source.

rank_places {"indicator":"population_18_64_share","level":"region","within":"United States","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=population_18_64_share&level=region&within=United%20States&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

Which state has the highest population aged 18 to 64?

District of Columbia, with 68.6% in 2024, according to the U.S. Census Bureau.

Which state has the lowest population aged 18 to 64?

South Dakota, with 57.2% 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.