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 2015, at 28.8%. Payne County had the lowest, at 19.2%. The median was 24.4% and the figure for Oklahoma was 24.6%. Source: the U.S. Census Bureau.

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Highest28.8Texas County
Lowest19.2Payne County
Median24.477 counties
Oklahoma24.6History

Map of counties, 2015

Adair County: 26.6 %Alfalfa County: 20 %Atoka County: 21.9 %Beaver County: 26.5 %Beckham County: 25.2 %Blaine County: 26.4 %Bryan County: 23.6 %Caddo County: 23.8 %Canadian County: 27.1 %Carter County: 24.7 %Cherokee County: 23.9 %Choctaw County: 23.5 %Cimarron County: 24.6 %Cleveland County: 23 %Coal County: 23.2 %Comanche County: 24.4 %Cotton County: 23.5 %Craig County: 22.2 %Creek County: 24.3 %Custer County: 24.9 %Delaware County: 21.2 %Dewey County: 25.9 %Ellis County: 24 %Garfield County: 26.1 %Garvin County: 25.2 %Grady County: 24.8 %Grant County: 24.2 %Greer County: 20.8 %Harmon County: 24.5 %Harper County: 26.3 %Haskell County: 25.1 %Hughes County: 21.4 %Jackson County: 25.3 %Jefferson County: 23.7 %Johnston County: 22.6 %Kay County: 24.9 %Kingfisher County: 27.4 %Kiowa County: 23 %Latimer County: 22.1 %Le Flore County: 24.5 %Lincoln County: 25.1 %Logan County: 25.7 %Love County: 23.8 %McClain County: 26.1 %McCurtain County: 25.7 %McIntosh County: 20.3 %Major County: 24.7 %Marshall County: 24.1 %Mayes County: 24.5 %Murray County: 23.8 %Muskogee County: 23.9 %Noble County: 24.3 %Nowata County: 23.3 %Okfuskee County: 22.5 %Oklahoma County: 25.3 %Okmulgee County: 24.2 %Osage County: 23.6 %Ottawa County: 24.5 %Pawnee County: 24.2 %Payne County: 19.2 %Pittsburg County: 21.9 %Pontotoc County: 23.6 %Pottawatomie County: 24.5 %Pushmataha County: 22.3 %Roger Mills County: 25.9 %Rogers County: 24.9 %Seminole County: 25.5 %Sequoyah County: 24.5 %Stephens County: 23.7 %Texas County: 28.8 %Tillman County: 24.8 %Tulsa County: 25.2 %Wagoner County: 25.8 %Washington County: 23.4 %Washita County: 26.3 %Woods County: 19.9 %Woodward County: 25.3 %
  • Under 23
  • 23 to 24
  • 24 to 25
  • 25 to 26
  • 26 and over
%, 2015. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2015

Texas County: 28.8 %Texas County28.8Kingfisher County: 27.4 %Kingfisher County27.4Canadian County: 27.1 %Canadian County27.1Adair County: 26.6 %Adair County26.6Beaver County: 26.5 %Beaver County26.5Blaine County: 26.4 %Blaine County26.4Harper County: 26.3 %Harper County26.3Washita County: 26.3 %Washita County26.3McClain County: 26.1 %McClain County26.1Garfield County: 26.1 %Garfield County26.1Dewey County: 25.9 %Dewey County25.9Roger Mills County: 25.9 %Roger Mills County25.9Wagoner County: 25.8 %Wagoner County25.8Logan County: 25.7 %Logan County25.7McCurtain County: 25.7 %McCurtain County25.7Seminole County: 25.5 %Seminole County25.5Woodward County: 25.3 %Woodward County25.3Oklahoma County: 25.3 %Oklahoma County25.3Jackson County: 25.3 %Jackson County25.3Tulsa County: 25.2 %Tulsa County25.2Beckham County: 25.2 %Beckham County25.2Garvin County: 25.2 %Garvin County25.2Lincoln County: 25.1 %Lincoln County25.1Haskell County: 25.1 %Haskell County25.1Custer County: 24.9 %Custer County24.9Kay County: 24.9 %Kay County24.9Rogers County: 24.9 %Rogers County24.9Tillman County: 24.8 %Tillman County24.8Grady County: 24.8 %Grady County24.8Major County: 24.7 %Major County24.7Carter County: 24.7 %Carter County24.7Cimarron County: 24.6 %Cimarron County24.6Harmon County: 24.5 %Harmon County24.5Ottawa County: 24.5 %Ottawa County24.5Mayes County: 24.5 %Mayes County24.5Le Flore County: 24.5 %Le Flore County24.5Pottawatomie County: 24.5 %Pottawatomie County24.5Sequoyah County: 24.5 %Sequoyah County24.5Comanche County: 24.4 %Comanche County24.4Creek County: 24.3 %Creek County24.3Texas County: 28.8 %Texas County28.8Kingfisher County: 27.4 %Kingfisher County27.4Canadian County: 27.1 %Canadian County27.1Adair County: 26.6 %Adair County26.6Beaver County: 26.5 %Beaver County26.5Blaine County: 26.4 %Blaine County26.4Harper County: 26.3 %Harper County26.3Washita County: 26.3 %Washita County26.3McClain County: 26.1 %McClain County26.1Garfield County: 26.1 %Garfield County26.1Dewey County: 25.9 %Dewey County25.9Roger Mills County: 25.9 %Roger Mills County25.9Wagoner County: 25.8 %Wagoner County25.8Logan County: 25.7 %Logan County25.7McCurtain County: 25.7 %McCurtain County25.7Seminole County: 25.5 %Seminole County25.5Woodward County: 25.3 %Woodward County25.3Oklahoma County: 25.3 %Oklahoma County25.3Jackson County: 25.3 %Jackson County25.3Tulsa County: 25.2 %Tulsa County25.2Beckham County: 25.2 %Beckham County25.2Garvin County: 25.2 %Garvin County25.2Lincoln County: 25.1 %Lincoln County25.1Haskell County: 25.1 %Haskell County25.1Custer County: 24.9 %Custer County24.9Kay County: 24.9 %Kay County24.9Rogers County: 24.9 %Rogers County24.9Tillman County: 24.8 %Tillman County24.8Grady County: 24.8 %Grady County24.8Major County: 24.7 %Major County24.7Carter County: 24.7 %Carter County24.7Cimarron County: 24.6 %Cimarron County24.6Harmon County: 24.5 %Harmon County24.5Ottawa County: 24.5 %Ottawa County24.5Mayes County: 24.5 %Mayes County24.5Le Flore County: 24.5 %Le Flore County24.5Pottawatomie County: 24.5 %Pottawatomie County24.5Sequoyah County: 24.5 %Sequoyah County24.5Comanche County: 24.4 %Comanche County24.4Creek County: 24.3 %Creek County24.3
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2015 (%)Change on 2014
1Texas County28.8+0.2 pts
2Kingfisher County27.4+0.2 pts
3Canadian County27.1+0.1 pts
4Adair County26.6-0.3 pts
5Beaver County26.5+0.5 pts
6Blaine County26.4+0.4 pts
7Harper County26.3+0.1 pts
8Washita County26.3-0.1 pts
9McClain County26.1-0 pts
10Garfield County26.1+0.3 pts
11Dewey County25.9-0.1 pts
12Roger Mills County25.9-0.1 pts
13Wagoner County25.8-0.1 pts
14Logan County25.7+0.1 pts
15McCurtain County25.7-0.1 pts
16Seminole County25.5+0.1 pts
17Woodward County25.3-0.3 pts
18Oklahoma County25.30 pts
19Jackson County25.3-0.3 pts
20Tulsa County25.2-0.1 pts
21Beckham County25.2+0.2 pts
22Garvin County25.2+0.5 pts
23Lincoln County25.1+0.1 pts
24Haskell County25.1+0.1 pts
25Custer County24.9+0.2 pts
26Kay County24.9-0 pts
27Rogers County24.9-0.2 pts
28Tillman County24.8-0.3 pts
29Grady County24.8+0.1 pts
30Major County24.7+0.1 pts
31Carter County24.7-0.4 pts
32Cimarron County24.6+0.2 pts
33Harmon County24.5-0.8 pts
34Ottawa County24.5-0 pts
35Mayes County24.5-0.1 pts
36Le Flore County24.5-0.1 pts
37Pottawatomie County24.5-0.1 pts
38Sequoyah County24.5-0.3 pts
39Comanche County24.4-0.1 pts
40Creek County24.3-0.1 pts
41Noble County24.30 pts
42Pawnee County24.2-0.1 pts
43Grant County24.2+0.7 pts
44Okmulgee County24.2+0.3 pts
45Marshall County24.1+0.3 pts
46Ellis County24+0.8 pts
47Muskogee County23.9-0 pts
48Cherokee County23.9-0.1 pts
49Love County23.8-0.5 pts
50Caddo County23.8-0.2 pts
51Murray County23.8+0.1 pts
52Stephens County23.7-0.1 pts
53Jefferson County23.7-0.3 pts
54Pontotoc County23.6-0.1 pts
55Bryan County23.6-0.1 pts
56Osage County23.6-0 pts
57Cotton County23.5-0.7 pts
58Choctaw County23.5-0.6 pts
59Washington County23.40 pts
60Nowata County23.3-0.1 pts
61Coal County23.2-0.4 pts
62Cleveland County23-0.1 pts
63Kiowa County23-0.5 pts
64Johnston County22.6-0.7 pts
65Okfuskee County22.5-0.3 pts
66Pushmataha County22.3+0.4 pts
67Craig County22.2+0.2 pts
68Latimer County22.1-0.4 pts
69Pittsburg County21.90 pts
70Atoka County21.9-0 pts
71Hughes County21.4-0.2 pts
72Delaware County21.2-0.4 pts
73Greer County20.8+0.1 pts
74McIntosh County20.3-0.2 pts
75Alfalfa County20+0.6 pts
76Woods County19.9-0 pts
77Payne County19.20 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, 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 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, 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-under-18/oklahoma-counties?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 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, 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-under-18/oklahoma-counties?period=2015.

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, 2015 [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=2015 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_oklahoma_by_2015,
  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, 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-under-18/oklahoma-counties?period=2015. 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, 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-under-18/oklahoma-counties?period=2015
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-under-18/oklahoma-counties?period=2015.
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 28.8% in 2015, according to the U.S. Census Bureau.

Which county has the lowest population under 18?

Payne County, with 19.2% 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 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