Data / Rankings / Population under 18 / Counties in Oklahoma

Counties in Oklahoma by population under 18

Texas County had the highest population under 18 of 77 counties in 2019, at 29.2%. Payne County had the lowest, at 18.8%. The median was 23.6% and the figure for Oklahoma was 24.1%. Source: the U.S. Census Bureau.

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Highest29.2Texas County
Lowest18.8Payne County
Median23.677 counties
Oklahoma24.1History

Map of counties, 2019

Adair County: 26.4 %Alfalfa County: 19.8 %Atoka County: 21.3 %Beaver County: 25.9 %Beckham County: 23.9 %Blaine County: 25 %Bryan County: 23.5 %Caddo County: 22 %Canadian County: 27 %Carter County: 23.6 %Cherokee County: 23.4 %Choctaw County: 22.6 %Cimarron County: 24.5 %Cleveland County: 22.8 %Coal County: 22.3 %Comanche County: 23.9 %Cotton County: 22.8 %Craig County: 21.2 %Creek County: 23.6 %Custer County: 24.7 %Delaware County: 20.3 %Dewey County: 26.3 %Ellis County: 23.1 %Garfield County: 25.9 %Garvin County: 24.2 %Grady County: 24.2 %Grant County: 23.3 %Greer County: 20.6 %Harmon County: 24.5 %Harper County: 25.6 %Haskell County: 24 %Hughes County: 21.1 %Jackson County: 24.6 %Jefferson County: 23.5 %Johnston County: 22.8 %Kay County: 24.4 %Kingfisher County: 26.9 %Kiowa County: 23 %Latimer County: 22.3 %Le Flore County: 24 %Lincoln County: 24.2 %Logan County: 25.7 %Love County: 22.7 %McClain County: 26.2 %McCurtain County: 25.1 %McIntosh County: 19.3 %Major County: 25.2 %Marshall County: 23.1 %Mayes County: 24.1 %Murray County: 23.2 %Muskogee County: 23.2 %Noble County: 23.6 %Nowata County: 22.5 %Okfuskee County: 21.3 %Oklahoma County: 24.7 %Okmulgee County: 23.2 %Osage County: 22.5 %Ottawa County: 23.4 %Pawnee County: 23.7 %Payne County: 18.8 %Pittsburg County: 22 %Pontotoc County: 23.8 %Pottawatomie County: 23.6 %Pushmataha County: 22.2 %Roger Mills County: 24 %Rogers County: 24 %Seminole County: 24.5 %Sequoyah County: 23.7 %Stephens County: 23.3 %Texas County: 29.2 %Tillman County: 24.4 %Tulsa County: 24.6 %Wagoner County: 25.4 %Washington County: 23.4 %Washita County: 25.6 %Woods County: 19.5 %Woodward County: 24.4 %
  • Under 22
  • 22 to 23
  • 23 to 24
  • 24 to 25
  • 25 and over
%, 2019. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2019

Texas County: 29.2 %Texas County29.2Canadian County: 27 %Canadian County27Kingfisher County: 26.9 %Kingfisher County26.9Adair County: 26.4 %Adair County26.4Dewey County: 26.3 %Dewey County26.3McClain County: 26.2 %McClain County26.2Beaver County: 25.9 %Beaver County25.9Garfield County: 25.9 %Garfield County25.9Logan County: 25.7 %Logan County25.7Harper County: 25.6 %Harper County25.6Washita County: 25.6 %Washita County25.6Wagoner County: 25.4 %Wagoner County25.4Major County: 25.2 %Major County25.2McCurtain County: 25.1 %McCurtain County25.1Blaine County: 25 %Blaine County25Custer County: 24.7 %Custer County24.7Oklahoma County: 24.7 %Oklahoma County24.7Tulsa County: 24.6 %Tulsa County24.6Jackson County: 24.6 %Jackson County24.6Seminole County: 24.5 %Seminole County24.5Cimarron County: 24.5 %Cimarron County24.5Harmon County: 24.5 %Harmon County24.5Tillman County: 24.4 %Tillman County24.4Kay County: 24.4 %Kay County24.4Woodward County: 24.4 %Woodward County24.4Garvin County: 24.2 %Garvin County24.2Grady County: 24.2 %Grady County24.2Lincoln County: 24.2 %Lincoln County24.2Mayes County: 24.1 %Mayes County24.1Roger Mills County: 24 %Roger Mills County24Haskell County: 24 %Haskell County24Rogers County: 24 %Rogers County24Le Flore County: 24 %Le Flore County24Comanche County: 23.9 %Comanche County23.9Beckham County: 23.9 %Beckham County23.9Pontotoc County: 23.8 %Pontotoc County23.8Sequoyah County: 23.7 %Sequoyah County23.7Pawnee County: 23.7 %Pawnee County23.7Pottawatomie County: 23.6 %Pottawatomie County23.6Carter County: 23.6 %Carter County23.6Texas County: 29.2 %Texas County29.2Canadian County: 27 %Canadian County27Kingfisher County: 26.9 %Kingfisher County26.9Adair County: 26.4 %Adair County26.4Dewey County: 26.3 %Dewey County26.3McClain County: 26.2 %McClain County26.2Beaver County: 25.9 %Beaver County25.9Garfield County: 25.9 %Garfield County25.9Logan County: 25.7 %Logan County25.7Harper County: 25.6 %Harper County25.6Washita County: 25.6 %Washita County25.6Wagoner County: 25.4 %Wagoner County25.4Major County: 25.2 %Major County25.2McCurtain County: 25.1 %McCurtain County25.1Blaine County: 25 %Blaine County25Custer County: 24.7 %Custer County24.7Oklahoma County: 24.7 %Oklahoma County24.7Tulsa County: 24.6 %Tulsa County24.6Jackson County: 24.6 %Jackson County24.6Seminole County: 24.5 %Seminole County24.5Cimarron County: 24.5 %Cimarron County24.5Harmon County: 24.5 %Harmon County24.5Tillman County: 24.4 %Tillman County24.4Kay County: 24.4 %Kay County24.4Woodward County: 24.4 %Woodward County24.4Garvin County: 24.2 %Garvin County24.2Grady County: 24.2 %Grady County24.2Lincoln County: 24.2 %Lincoln County24.2Mayes County: 24.1 %Mayes County24.1Roger Mills County: 24 %Roger Mills County24Haskell County: 24 %Haskell County24Rogers County: 24 %Rogers County24Le Flore County: 24 %Le Flore County24Comanche County: 23.9 %Comanche County23.9Beckham County: 23.9 %Beckham County23.9Pontotoc County: 23.8 %Pontotoc County23.8Sequoyah County: 23.7 %Sequoyah County23.7Pawnee County: 23.7 %Pawnee County23.7Pottawatomie County: 23.6 %Pottawatomie County23.6Carter County: 23.6 %Carter County23.6
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2019 (%)Change on 2018
1Texas County29.2+0.2 pts
2Canadian County27-0 pts
3Kingfisher County26.9-0.4 pts
4Adair County26.4+0.1 pts
5Dewey County26.3+0.2 pts
6McClain County26.20 pts
7Beaver County25.9-0.3 pts
8Garfield County25.9+0.1 pts
9Logan County25.7-0.1 pts
10Harper County25.6-0.1 pts
11Washita County25.6-0.6 pts
12Wagoner County25.4-0.2 pts
13Major County25.20 pts
14McCurtain County25.1-0.2 pts
15Blaine County25+0.2 pts
16Custer County24.7-0.1 pts
17Oklahoma County24.7-0.2 pts
18Tulsa County24.6-0.2 pts
19Jackson County24.6-0.2 pts
20Seminole County24.5-0.2 pts
21Cimarron County24.5+0.5 pts
22Harmon County24.5-1.2 pts
23Tillman County24.4+0.2 pts
24Kay County24.4-0.3 pts
25Woodward County24.4-0.1 pts
26Garvin County24.2-0.2 pts
27Grady County24.2-0.2 pts
28Lincoln County24.2-0.2 pts
29Mayes County24.1-0 pts
30Roger Mills County24-1.2 pts
31Haskell County24-0.4 pts
32Rogers County24-0.2 pts
33Le Flore County24-0.4 pts
34Comanche County23.9+0.1 pts
35Beckham County23.9+0.3 pts
36Pontotoc County23.8-0.1 pts
37Sequoyah County23.7-0.2 pts
38Pawnee County23.7-0.3 pts
39Pottawatomie County23.6-0.3 pts
40Carter County23.6-0.3 pts
41Creek County23.6-0.5 pts
42Noble County23.6-0.1 pts
43Jefferson County23.5-0.4 pts
44Bryan County23.5-0.2 pts
45Ottawa County23.4-0.3 pts
46Cherokee County23.4+0.1 pts
47Washington County23.4-0.1 pts
48Stephens County23.3-0 pts
49Grant County23.30 pts
50Murray County23.2-0 pts
51Okmulgee County23.2-0.1 pts
52Muskogee County23.2-0.1 pts
53Ellis County23.1+0.2 pts
54Marshall County23.1-0.3 pts
55Kiowa County23-0 pts
56Cleveland County22.8-0.1 pts
57Cotton County22.8-0.4 pts
58Johnston County22.8+0.2 pts
59Love County22.7-0.1 pts
60Choctaw County22.6-0.2 pts
61Osage County22.5-0.2 pts
62Nowata County22.5-0.5 pts
63Coal County22.3-0.4 pts
64Latimer County22.3+0.4 pts
65Pushmataha County22.2-0.2 pts
66Pittsburg County22+0.1 pts
67Caddo County22-0.4 pts
68Okfuskee County21.3-0.1 pts
69Atoka County21.3-0.1 pts
70Craig County21.2-0.4 pts
71Hughes County21.1-0.1 pts
72Greer County20.6-0.4 pts
73Delaware County20.3-0.3 pts
74Alfalfa County19.8+0.1 pts
75Woods County19.5+0.1 pts
76McIntosh County19.3-0.6 pts
77Payne County18.8-0.2 pts

Other periods

About this ranking

Residents aged 0 to 17 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.

Uses the US age of majority. Not comparable with population_0_14_share, which stops at 14.

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 0 to 17 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 0 to 17 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 under 18, 2019) [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 0 to 17 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 under 18, 2019. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/population-under-18/oklahoma-counties?period=2019. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program, county population by age and sex: residents aged 0 to 17 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 under 18, 2019. 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-under-18/oklahoma-counties?period=2019.

Harvard

U.S. Census Bureau (2026) Population Estimates Program, county population by age and sex: residents aged 0 to 17 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 under 18, 2019 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/population-under-18/oklahoma-counties?period=2019 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_oklahoma_by_2019,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program, county population by age and sex: residents aged 0 to 17 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 under 18, 2019}},
  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-under-18/oklahoma-counties?period=2019. Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 0 to 17 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 0 to 17 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 under 18, 2019
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-under-18/oklahoma-counties?period=2019
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-under-18/oklahoma-counties?period=2019.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 0 to 17 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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Rank Counties in Oklahoma by population under 18 using official data, and cite the source.
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Questions

Which county has the highest population under 18?

Texas County, with 29.2% in 2019, according to the U.S. Census Bureau.

Which county has the lowest population under 18?

Payne County, with 18.8% in 2019.

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 0 to 17 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 under 18: other rankings

Counties in Oklahoma: more rankings