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

Counties in Oklahoma by population aged 18 to 64

Payne County had the highest population aged 18 to 64 of 77 counties in 2020, at 67.9%. Cimarron County had the lowest, at 51.4%. The median was 56.3% and the figure for Oklahoma was 59.4%. Source: the U.S. Census Bureau.

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Highest67.9Payne County
Lowest51.4Cimarron County
Median56.377 counties
Oklahoma59.4History

Map of counties, 2020

Adair County: 55.6 %Alfalfa County: 61.5 %Atoka County: 59.6 %Beaver County: 52.8 %Beckham County: 60.2 %Blaine County: 53.6 %Bryan County: 58.6 %Caddo County: 59.8 %Canadian County: 59.6 %Carter County: 56.2 %Cherokee County: 59.2 %Choctaw County: 55.5 %Cimarron County: 51.4 %Cleveland County: 63.6 %Coal County: 55.7 %Comanche County: 62.6 %Cotton County: 55.3 %Craig County: 57.9 %Creek County: 57.4 %Custer County: 59.7 %Delaware County: 54.1 %Dewey County: 53.6 %Ellis County: 54 %Garfield County: 57.3 %Garvin County: 55.8 %Grady County: 59 %Grant County: 53.6 %Greer County: 61 %Harmon County: 51.9 %Harper County: 52.3 %Haskell County: 54.6 %Hughes County: 60.1 %Jackson County: 59.3 %Jefferson County: 54 %Johnston County: 57.3 %Kay County: 56 %Kingfisher County: 55.6 %Kiowa County: 54 %Latimer County: 55.6 %Le Flore County: 57.2 %Lincoln County: 56.9 %Logan County: 58.9 %Love County: 55.4 %McClain County: 58 %McCurtain County: 55.6 %McIntosh County: 53.3 %Major County: 54.2 %Marshall County: 54.3 %Mayes County: 56.2 %Murray County: 55.5 %Muskogee County: 57.7 %Noble County: 56.1 %Nowata County: 56.3 %Okfuskee County: 58.4 %Oklahoma County: 60.6 %Okmulgee County: 57.2 %Osage County: 57.5 %Ottawa County: 56 %Pawnee County: 55.2 %Payne County: 67.9 %Pittsburg County: 57.3 %Pontotoc County: 58.8 %Pottawatomie County: 59.1 %Pushmataha County: 55.1 %Roger Mills County: 54.8 %Rogers County: 58.6 %Seminole County: 56.9 %Sequoyah County: 56.1 %Stephens County: 55.5 %Texas County: 58.5 %Tillman County: 54.7 %Tulsa County: 60.1 %Wagoner County: 58 %Washington County: 56.1 %Washita County: 54.8 %Woods County: 61.8 %Woodward County: 59.7 %
  • Under 54
  • 54 to 56
  • 56 to 58
  • 58 to 60
  • 60 and over
%, 2020. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2020

Payne County: 67.9 %Payne County67.9Cleveland County: 63.6 %Cleveland County63.6Comanche County: 62.6 %Comanche County62.6Woods County: 61.8 %Woods County61.8Alfalfa County: 61.5 %Alfalfa County61.5Greer County: 61 %Greer County61Oklahoma County: 60.6 %Oklahoma County60.6Beckham County: 60.2 %Beckham County60.2Hughes County: 60.1 %Hughes County60.1Tulsa County: 60.1 %Tulsa County60.1Caddo County: 59.8 %Caddo County59.8Custer County: 59.7 %Custer County59.7Woodward County: 59.7 %Woodward County59.7Atoka County: 59.6 %Atoka County59.6Canadian County: 59.6 %Canadian County59.6Jackson County: 59.3 %Jackson County59.3Cherokee County: 59.2 %Cherokee County59.2Pottawatomie County: 59.1 %Pottawatomie County59.1Grady County: 59 %Grady County59Logan County: 58.9 %Logan County58.9Pontotoc County: 58.8 %Pontotoc County58.8Rogers County: 58.6 %Rogers County58.6Bryan County: 58.6 %Bryan County58.6Texas County: 58.5 %Texas County58.5Okfuskee County: 58.4 %Okfuskee County58.4Wagoner County: 58 %Wagoner County58McClain County: 58 %McClain County58Craig County: 57.9 %Craig County57.9Muskogee County: 57.7 %Muskogee County57.7Osage County: 57.5 %Osage County57.5Creek County: 57.4 %Creek County57.4Johnston County: 57.3 %Johnston County57.3Garfield County: 57.3 %Garfield County57.3Pittsburg County: 57.3 %Pittsburg County57.3Le Flore County: 57.2 %Le Flore County57.2Okmulgee County: 57.2 %Okmulgee County57.2Seminole County: 56.9 %Seminole County56.9Lincoln County: 56.9 %Lincoln County56.9Nowata County: 56.3 %Nowata County56.3Mayes County: 56.2 %Mayes County56.2Payne County: 67.9 %Payne County67.9Cleveland County: 63.6 %Cleveland County63.6Comanche County: 62.6 %Comanche County62.6Woods County: 61.8 %Woods County61.8Alfalfa County: 61.5 %Alfalfa County61.5Greer County: 61 %Greer County61Oklahoma County: 60.6 %Oklahoma County60.6Beckham County: 60.2 %Beckham County60.2Hughes County: 60.1 %Hughes County60.1Tulsa County: 60.1 %Tulsa County60.1Caddo County: 59.8 %Caddo County59.8Custer County: 59.7 %Custer County59.7Woodward County: 59.7 %Woodward County59.7Atoka County: 59.6 %Atoka County59.6Canadian County: 59.6 %Canadian County59.6Jackson County: 59.3 %Jackson County59.3Cherokee County: 59.2 %Cherokee County59.2Pottawatomie County: 59.1 %Pottawatomie County59.1Grady County: 59 %Grady County59Logan County: 58.9 %Logan County58.9Pontotoc County: 58.8 %Pontotoc County58.8Rogers County: 58.6 %Rogers County58.6Bryan County: 58.6 %Bryan County58.6Texas County: 58.5 %Texas County58.5Okfuskee County: 58.4 %Okfuskee County58.4Wagoner County: 58 %Wagoner County58McClain County: 58 %McClain County58Craig County: 57.9 %Craig County57.9Muskogee County: 57.7 %Muskogee County57.7Osage County: 57.5 %Osage County57.5Creek County: 57.4 %Creek County57.4Johnston County: 57.3 %Johnston County57.3Garfield County: 57.3 %Garfield County57.3Pittsburg County: 57.3 %Pittsburg County57.3Le Flore County: 57.2 %Le Flore County57.2Okmulgee County: 57.2 %Okmulgee County57.2Seminole County: 56.9 %Seminole County56.9Lincoln County: 56.9 %Lincoln County56.9Nowata County: 56.3 %Nowata County56.3Mayes County: 56.2 %Mayes County56.2
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2020 (%)Change on 2019
1Payne County67.9-0.3 pts
2Cleveland County63.6+0.2 pts
3Comanche County62.6-0.4 pts
4Woods County61.8-0.8 pts
5Alfalfa County61.5-0.4 pts
6Greer County61-0.3 pts
7Oklahoma County60.6-0.5 pts
8Beckham County60.2-0.9 pts
9Hughes County60.1-0.5 pts
10Tulsa County60.1-0.4 pts
11Caddo County59.8-1.1 pts
12Custer County59.7-0.8 pts
13Woodward County59.7-0.3 pts
14Atoka County59.6-0.4 pts
15Canadian County59.6-0.1 pts
16Jackson County59.3-0.5 pts
17Cherokee County59.2-0.5 pts
18Pottawatomie County59.1-0.4 pts
19Grady County59-0.3 pts
20Logan County58.9-0.1 pts
21Pontotoc County58.8-0.4 pts
22Rogers County58.6-0.3 pts
23Bryan County58.6-0.2 pts
24Texas County58.5-0.4 pts
25Okfuskee County58.4-0.8 pts
26Wagoner County58-0 pts
27McClain County58+0.2 pts
28Craig County57.9-0.8 pts
29Muskogee County57.7-0.7 pts
30Osage County57.5-0.4 pts
31Creek County57.4-0.3 pts
32Johnston County57.3-0.6 pts
33Garfield County57.3-0.4 pts
34Pittsburg County57.3-0.5 pts
35Le Flore County57.2-0.5 pts
36Okmulgee County57.2-0.4 pts
37Seminole County56.9-0.6 pts
38Lincoln County56.9-0.4 pts
39Nowata County56.3-0.5 pts
40Mayes County56.2-0.3 pts
41Carter County56.2-0.8 pts
42Sequoyah County56.1-0.9 pts
43Noble County56.1-0.4 pts
44Washington County56.1-0.4 pts
45Kay County56-0.1 pts
46Ottawa County56-0.8 pts
47Garvin County55.8-0.7 pts
48Coal County55.7-0 pts
49Adair County55.6-1 pts
50Kingfisher County55.6-0.8 pts
51McCurtain County55.6-0.7 pts
52Latimer County55.6-0.9 pts
53Murray County55.5-0.4 pts
54Stephens County55.5-0.4 pts
55Choctaw County55.5-1.1 pts
56Love County55.4-0.7 pts
57Cotton County55.3-0.8 pts
58Pawnee County55.2-0.7 pts
59Pushmataha County55.1-0.2 pts
60Washita County54.8-0.7 pts
61Roger Mills County54.8-0.5 pts
62Tillman County54.7-0.4 pts
63Haskell County54.6-0.3 pts
64Marshall County54.3-0.6 pts
65Major County54.2-0.5 pts
66Delaware County54.1-0.7 pts
67Jefferson County540 pts
68Ellis County54+0.4 pts
69Kiowa County54-1.3 pts
70Blaine County53.6-0.7 pts
70Grant County53.6-1 pts
72Dewey County53.6+0.1 pts
73McIntosh County53.3-0.8 pts
74Beaver County52.8-0 pts
75Harper County52.3+0.1 pts
76Harmon County51.9-1.6 pts
77Cimarron County51.4-0.2 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 Oklahoma 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, Counties in Oklahoma 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/oklahoma-counties?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. Counties in Oklahoma 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/oklahoma-counties?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, Counties in Oklahoma 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/oklahoma-counties?period=2020 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_oklahoma_by_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: Counties in Oklahoma 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/oklahoma-counties?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: Counties in Oklahoma 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/oklahoma-counties?period=2020
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/oklahoma-counties?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 county has the highest population aged 18 to 64?

Payne County, with 67.9% in 2020, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Cimarron County, with 51.4% 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

Counties in Oklahoma: more rankings