Data / Rankings / Population under 18 / US states

US states by population under 18

Utah had the highest population under 18 of 51 states in 2014, at 30.9%. District of Columbia had the lowest, at 16.7%. The median was 22.9% and the figure for the United States was 23.1%. Source: the U.S. Census Bureau.

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Highest30.9Utah
Lowest16.7District of Columbia
Median22.951 states
United States23.1History

Map of states, 2014

Alabama: 22.8 %Alaska: 25.4 %Arizona: 24.3 %Arkansas: 23.9 %California: 23.5 %Colorado: 23.5 %Connecticut: 21.6 %Delaware: 21.8 %District of Columbia: 16.7 %Florida: 20.4 %Georgia: 24.7 %Hawaii: 21.6 %Idaho: 26.6 %Illinois: 23.2 %Indiana: 24.1 %Iowa: 23.5 %Kansas: 25 %Kentucky: 23.1 %Louisiana: 24 %Maine: 19.6 %Maryland: 22.6 %Massachusetts: 20.6 %Michigan: 22.5 %Minnesota: 23.6 %Mississippi: 24.3 %Missouri: 23 %Montana: 22.2 %Nebraska: 25 %Nevada: 23.4 %New Hampshire: 20.1 %New Jersey: 22.5 %New Mexico: 24.2 %New York: 21.3 %North Carolina: 23 %North Dakota: 22.8 %Ohio: 22.8 %Oklahoma: 24.6 %Oregon: 21.8 %Pennsylvania: 21.1 %Rhode Island: 20.1 %South Carolina: 22.5 %South Dakota: 24.7 %Tennessee: 22.9 %Texas: 26.3 %Utah: 30.9 %Vermont: 19.5 %Virginia: 22.5 %Washington: 22.8 %West Virginia: 20.6 %Wisconsin: 22.7 %Wyoming: 24 %
  • Under 21
  • 21 to 22
  • 22 to 23
  • 23 to 24
  • 24 to 25
  • 25 and over
%, 2014. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All states, 2014

Utah: 30.9 %Utah30.9Idaho: 26.6 %Idaho26.6Texas: 26.3 %Texas26.3Alaska: 25.4 %Alaska25.4Kansas: 25 %Kansas25Nebraska: 25 %Nebraska25South Dakota: 24.7 %South Dakota24.7Georgia: 24.7 %Georgia24.7Oklahoma: 24.6 %Oklahoma24.6Mississippi: 24.3 %Mississippi24.3Arizona: 24.3 %Arizona24.3New Mexico: 24.2 %New Mexico24.2Indiana: 24.1 %Indiana24.1Wyoming: 24 %Wyoming24Louisiana: 24 %Louisiana24Arkansas: 23.9 %Arkansas23.9Minnesota: 23.6 %Minnesota23.6Iowa: 23.5 %Iowa23.5California: 23.5 %California23.5Colorado: 23.5 %Colorado23.5Nevada: 23.4 %Nevada23.4Illinois: 23.2 %Illinois23.2Kentucky: 23.1 %Kentucky23.1Missouri: 23 %Missouri23North Carolina: 23 %North Carolina23Tennessee: 22.9 %Tennessee22.9Alabama: 22.8 %Alabama22.8Washington: 22.8 %Washington22.8Ohio: 22.8 %Ohio22.8North Dakota: 22.8 %North Dakota22.8Wisconsin: 22.7 %Wisconsin22.7Maryland: 22.6 %Maryland22.6South Carolina: 22.5 %South Carolina22.5Michigan: 22.5 %Michigan22.5Virginia: 22.5 %Virginia22.5New Jersey: 22.5 %New Jersey22.5Montana: 22.2 %Montana22.2Delaware: 21.8 %Delaware21.8Oregon: 21.8 %Oregon21.8Connecticut: 21.6 %Connecticut21.6Hawaii: 21.6 %Hawaii21.6New York: 21.3 %New York21.3Pennsylvania: 21.1 %Pennsylvania21.1West Virginia: 20.6 %West Virginia20.6Massachusetts: 20.6 %Massachusetts20.6Florida: 20.4 %Florida20.4New Hampshire: 20.1 %New Hampshire20.1Rhode Island: 20.1 %Rhode Island20.1Maine: 19.6 %Maine19.6Vermont: 19.5 %Vermont19.5District of Columbia: 16.7 %District of Columbia16.7Utah: 30.9 %Utah30.9Idaho: 26.6 %Idaho26.6Texas: 26.3 %Texas26.3Alaska: 25.4 %Alaska25.4Kansas: 25 %Kansas25Nebraska: 25 %Nebraska25South Dakota: 24.7 %South Dakota24.7Georgia: 24.7 %Georgia24.7Oklahoma: 24.6 %Oklahoma24.6Mississippi: 24.3 %Mississippi24.3Arizona: 24.3 %Arizona24.3New Mexico: 24.2 %New Mexico24.2Indiana: 24.1 %Indiana24.1Wyoming: 24 %Wyoming24Louisiana: 24 %Louisiana24Arkansas: 23.9 %Arkansas23.9Minnesota: 23.6 %Minnesota23.6Iowa: 23.5 %Iowa23.5California: 23.5 %California23.5Colorado: 23.5 %Colorado23.5Nevada: 23.4 %Nevada23.4Illinois: 23.2 %Illinois23.2Kentucky: 23.1 %Kentucky23.1Missouri: 23 %Missouri23North Carolina: 23 %North Carolina23Tennessee: 22.9 %Tennessee22.9Alabama: 22.8 %Alabama22.8Washington: 22.8 %Washington22.8Ohio: 22.8 %Ohio22.8North Dakota: 22.8 %North Dakota22.8Wisconsin: 22.7 %Wisconsin22.7Maryland: 22.6 %Maryland22.6South Carolina: 22.5 %South Carolina22.5Michigan: 22.5 %Michigan22.5Virginia: 22.5 %Virginia22.5New Jersey: 22.5 %New Jersey22.5Montana: 22.2 %Montana22.2Delaware: 21.8 %Delaware21.8Oregon: 21.8 %Oregon21.8Connecticut: 21.6 %Connecticut21.6Hawaii: 21.6 %Hawaii21.6New York: 21.3 %New York21.3Pennsylvania: 21.1 %Pennsylvania21.1West Virginia: 20.6 %West Virginia20.6Massachusetts: 20.6 %Massachusetts20.6Florida: 20.4 %Florida20.4New Hampshire: 20.1 %New Hampshire20.1Rhode Island: 20.1 %Rhode Island20.1Maine: 19.6 %Maine19.6Vermont: 19.5 %Vermont19.5District of Columbia: 16.7 %District of Columbia16.7
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankStates2014 (%)Change on 2013
1Utah30.9-0.2 pts
2Idaho26.6-0.1 pts
3Texas26.3-0.2 pts
4Alaska25.4-0.2 pts
5Kansas25-0.1 pts
6Nebraska25-0 pts
7South Dakota24.70 pts
8Georgia24.7-0.2 pts
9Oklahoma24.6-0 pts
10Mississippi24.3-0.2 pts
11Arizona24.3-0.2 pts
12New Mexico24.2-0.2 pts
13Indiana24.1-0.1 pts
14Wyoming24+0.2 pts
15Louisiana24-0.1 pts
16Arkansas23.9-0.1 pts
17Minnesota23.6-0.1 pts
18Iowa23.5-0 pts
19California23.5-0.3 pts
20Colorado23.5-0.2 pts
21Nevada23.4-0.2 pts
22Illinois23.2-0.2 pts
23Kentucky23.1-0.1 pts
24Missouri23-0.1 pts
25North Carolina23-0.2 pts
26Tennessee22.9-0.1 pts
27Alabama22.8-0.1 pts
28Washington22.8-0.2 pts
29Ohio22.8-0.2 pts
30North Dakota22.8+0.2 pts
31Wisconsin22.7-0.2 pts
32Maryland22.6-0.1 pts
33South Carolina22.5-0.1 pts
34Michigan22.5-0.2 pts
35Virginia22.5-0.1 pts
36New Jersey22.5-0.2 pts
37Montana22.2-0 pts
38Delaware21.8-0.2 pts
39Oregon21.8-0.2 pts
40Connecticut21.6-0.3 pts
41Hawaii21.6-0.2 pts
42New York21.3-0.2 pts
43Pennsylvania21.1-0.1 pts
44West Virginia20.6-0 pts
45Massachusetts20.6-0.2 pts
46Florida20.4-0.2 pts
47New Hampshire20.1-0.4 pts
48Rhode Island20.1-0.2 pts
49Maine19.6-0.2 pts
50Vermont19.5-0.2 pts
51District of Columbia16.7+0.1 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 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 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 (US states by population under 18, 2014) [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, US states by population under 18, 2014. 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/us-states?period=2014. 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. US states by population under 18, 2014. 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/us-states?period=2014.

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, US states by population under 18, 2014 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/population-under-18/us-states?period=2014 (Accessed: 12 October 2026).

BibTeX
@misc{census_us_states_by_population_2014,
  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: US states by population under 18, 2014}},
  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/us-states?period=2014. 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: US states by population under 18, 2014
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/us-states?period=2014
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-under-18/us-states?period=2014.
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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Questions

Which state has the highest population under 18?

Utah, with 30.9% in 2014, according to the U.S. Census Bureau.

Which state has the lowest population under 18?

District of Columbia, with 16.7% in 2014.

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

US states: more rankings