Counties in Oklahoma by population under 18, 2025

Texas County had the highest population under 18 of 77 counties in 2025, at 28%. Payne County had the lowest, at 17.6%. The median was 23.3% and the figure for Oklahoma was 23.2%. Source: the U.S. Census Bureau.

Highest28Texas County
Lowest17.6Payne County
Median23.377 counties
Oklahoma23.2History

Top 40 counties, 2025

Texas County: 28 %Texas County28Adair County: 27.4 %Adair County27.4McCurtain County: 26.2 %McCurtain County26.2Kingfisher County: 25.9 %Kingfisher County25.9Blaine County: 25.5 %Blaine County25.5Dewey County: 25.2 %Dewey County25.2Harmon County: 25.2 %Harmon County25.2Canadian County: 25 %Canadian County25Seminole County: 24.8 %Seminole County24.8Sequoyah County: 24.7 %Sequoyah County24.7Garfield County: 24.7 %Garfield County24.7McClain County: 24.6 %McClain County24.6Ottawa County: 24.6 %Ottawa County24.6Custer County: 24.5 %Custer County24.5Garvin County: 24.4 %Garvin County24.4Coal County: 24.4 %Coal County24.4Beaver County: 24.3 %Beaver County24.3Cimarron County: 24.2 %Cimarron County24.2Jackson County: 24.2 %Jackson County24.2Le Flore County: 24.1 %Le Flore County24.1Oklahoma County: 24.1 %Oklahoma County24.1Major County: 24.1 %Major County24.1Pontotoc County: 24.1 %Pontotoc County24.1Washita County: 23.9 %Washita County23.9Bryan County: 23.9 %Bryan County23.9Carter County: 23.9 %Carter County23.9Kiowa County: 23.9 %Kiowa County23.9Tulsa County: 23.8 %Tulsa County23.8Choctaw County: 23.7 %Choctaw County23.7Kay County: 23.7 %Kay County23.7Haskell County: 23.6 %Haskell County23.6Lincoln County: 23.6 %Lincoln County23.6Latimer County: 23.5 %Latimer County23.5Nowata County: 23.5 %Nowata County23.5Jefferson County: 23.5 %Jefferson County23.5Pawnee County: 23.4 %Pawnee County23.4Washington County: 23.4 %Washington County23.4Wagoner County: 23.4 %Wagoner County23.4Grant County: 23.3 %Grant County23.3Roger Mills County: 23.3 %Roger Mills County23.3
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2025 (%)Change on 2024
1Texas County28+0.2 pts
2Adair County27.4+0.1 pts
3McCurtain County26.2-0 pts
4Kingfisher County25.9-0.4 pts
5Blaine County25.5-0.4 pts
6Dewey County25.2-0.1 pts
7Harmon County25.2+0.3 pts
8Canadian County25-0.6 pts
9Seminole County24.8+0.1 pts
10Sequoyah County24.7+0.4 pts
11Garfield County24.7-0.5 pts
12McClain County24.6-0.4 pts
13Ottawa County24.60 pts
14Custer County24.5-0.1 pts
15Garvin County24.4-0.3 pts
16Coal County24.4+0.3 pts
17Beaver County24.30 pts
18Cimarron County24.2-0.5 pts
19Jackson County24.2-0.1 pts
20Le Flore County24.1+0.1 pts
21Oklahoma County24.1-0.3 pts
22Major County24.1-0.5 pts
23Pontotoc County24.1-0.1 pts
24Washita County23.9-0.8 pts
25Bryan County23.9-0 pts
26Carter County23.9-0.1 pts
27Kiowa County23.9+0.1 pts
28Tulsa County23.8-0.3 pts
29Choctaw County23.7-0.2 pts
30Kay County23.7-0.2 pts
31Haskell County23.6-0.4 pts
32Lincoln County23.6-0.2 pts
33Latimer County23.5+0.2 pts
34Nowata County23.5-0.2 pts
35Jefferson County23.5+0.2 pts
36Pawnee County23.4-0.6 pts
37Washington County23.4-0.2 pts
38Wagoner County23.4-0.5 pts
39Grant County23.3-0.6 pts
40Roger Mills County23.3-0.8 pts
41Muskogee County23.2-0.1 pts
42Okmulgee County23.2-0.1 pts
43Comanche County23.1-0.2 pts
44Mayes County23.1-0.3 pts
45Logan County23-0.3 pts
46Woodward County23-0.2 pts
47Marshall County22.9-0.2 pts
48Rogers County22.9-0.4 pts
49Love County22.9-0.2 pts
50Beckham County22.8-0.1 pts
51Grady County22.7-0.5 pts
52Pottawatomie County22.7-0.4 pts
53Creek County22.7-0.1 pts
54Stephens County22.7-0.1 pts
55Okfuskee County22.7+0.4 pts
56Cotton County22.6-0.8 pts
57Johnston County22.6-0.4 pts
58Harper County22.5-0.4 pts
59Caddo County22.5-0.1 pts
60Ellis County22.3+0.3 pts
61Cherokee County22.3-0.1 pts
62Craig County22.1-0.3 pts
63Pushmataha County21.7-0 pts
64Murray County21.7-0.6 pts
65Pittsburg County21.6-0.2 pts
66Noble County21.6-0.5 pts
67Tillman County21.4-0.7 pts
68Atoka County20.9-0 pts
69Hughes County20.7-0.3 pts
70McIntosh County20.30 pts
71Osage County20.3-0.6 pts
72Delaware County19.8-0.1 pts
73Cleveland County19.8-0.5 pts
74Woods County19.8-0.1 pts
75Greer County19.4-0.6 pts
76Alfalfa County19-0.2 pts
77Payne County17.6-0.3 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.

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 Counties in Oklahoma by population under 18 using official data, and cite the source.
rank_places {"indicator":"population_0_17_share","level":"province","within":"Oklahoma","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=population_0_17_share&level=province&within=Oklahoma&limit=10

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Questions

Which county has the highest population under 18?

Texas County, with 28% in 2025, according to the U.S. Census Bureau.

Which county has the lowest population under 18?

Payne County, with 17.6% in 2025.

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