Data / Rankings / Population under 18 / Counties in Alabama

Counties in Alabama by population under 18

Franklin County had the highest population under 18 of 67 counties in 2017, at 25.1%. Coosa County had the lowest, at 17%. The median was 21.9% and the figure for Alabama was 22.4%. Source: the U.S. Census Bureau.

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Highest25.1Franklin County
Lowest17Coosa County
Median21.967 counties
Alabama22.4History

Map of counties, 2017

Autauga County: 24.7 %Baldwin County: 21.9 %Barbour County: 20.6 %Bibb County: 21.6 %Blount County: 23.6 %Bullock County: 19.5 %Butler County: 22.6 %Calhoun County: 21.4 %Chambers County: 20.7 %Cherokee County: 20.1 %Chilton County: 24 %Choctaw County: 20.3 %Clarke County: 21.5 %Clay County: 20.6 %Cleburne County: 22.9 %Coffee County: 24 %Colbert County: 21.2 %Conecuh County: 20.7 %Coosa County: 17 %Covington County: 21.7 %Crenshaw County: 22.3 %Cullman County: 22.5 %Dale County: 23.2 %Dallas County: 24.2 %DeKalb County: 25 %Elmore County: 22.1 %Escambia County: 22.3 %Etowah County: 21.8 %Fayette County: 21.6 %Franklin County: 25.1 %Geneva County: 22.3 %Greene County: 22.2 %Hale County: 22.6 %Henry County: 20.9 %Houston County: 23.2 %Jackson County: 21.1 %Jefferson County: 22.3 %Lamar County: 21.4 %Lauderdale County: 20.2 %Lawrence County: 21.7 %Lee County: 21.9 %Limestone County: 23.5 %Lowndes County: 21 %Macon County: 17 %Madison County: 22.1 %Marengo County: 22.6 %Marion County: 20.9 %Marshall County: 24.6 %Mobile County: 23.5 %Monroe County: 22.3 %Montgomery County: 22.9 %Morgan County: 22.8 %Perry County: 21.8 %Pickens County: 20.2 %Pike County: 19 %Randolph County: 22 %Russell County: 24.8 %St. Clair County: 23.4 %Shelby County: 24.2 %Sumter County: 19.7 %Talladega County: 21.5 %Tallapoosa County: 20.8 %Tuscaloosa County: 21.4 %Walker County: 21.3 %Washington County: 22.4 %Wilcox County: 23.6 %Winston County: 20.8 %
  • Under 21
  • 21 to 22
  • 22 to 23
  • 23 and over
%, 2017. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2017

Franklin County: 25.1 %Franklin County25.1DeKalb County: 25 %DeKalb County25Russell County: 24.8 %Russell County24.8Autauga County: 24.7 %Autauga County24.7Marshall County: 24.6 %Marshall County24.6Shelby County: 24.2 %Shelby County24.2Dallas County: 24.2 %Dallas County24.2Chilton County: 24 %Chilton County24Coffee County: 24 %Coffee County24Wilcox County: 23.6 %Wilcox County23.6Blount County: 23.6 %Blount County23.6Limestone County: 23.5 %Limestone County23.5Mobile County: 23.5 %Mobile County23.5St. Clair County: 23.4 %St. Clair County23.4Houston County: 23.2 %Houston County23.2Dale County: 23.2 %Dale County23.2Montgomery County: 22.9 %Montgomery County22.9Cleburne County: 22.9 %Cleburne County22.9Morgan County: 22.8 %Morgan County22.8Marengo County: 22.6 %Marengo County22.6Hale County: 22.6 %Hale County22.6Butler County: 22.6 %Butler County22.6Cullman County: 22.5 %Cullman County22.5Washington County: 22.4 %Washington County22.4Escambia County: 22.3 %Escambia County22.3Monroe County: 22.3 %Monroe County22.3Crenshaw County: 22.3 %Crenshaw County22.3Jefferson County: 22.3 %Jefferson County22.3Geneva County: 22.3 %Geneva County22.3Greene County: 22.2 %Greene County22.2Elmore County: 22.1 %Elmore County22.1Madison County: 22.1 %Madison County22.1Randolph County: 22 %Randolph County22Lee County: 21.9 %Lee County21.9Baldwin County: 21.9 %Baldwin County21.9Etowah County: 21.8 %Etowah County21.8Perry County: 21.8 %Perry County21.8Lawrence County: 21.7 %Lawrence County21.7Covington County: 21.7 %Covington County21.7Fayette County: 21.6 %Fayette County21.6Franklin County: 25.1 %Franklin County25.1DeKalb County: 25 %DeKalb County25Russell County: 24.8 %Russell County24.8Autauga County: 24.7 %Autauga County24.7Marshall County: 24.6 %Marshall County24.6Shelby County: 24.2 %Shelby County24.2Dallas County: 24.2 %Dallas County24.2Chilton County: 24 %Chilton County24Coffee County: 24 %Coffee County24Wilcox County: 23.6 %Wilcox County23.6Blount County: 23.6 %Blount County23.6Limestone County: 23.5 %Limestone County23.5Mobile County: 23.5 %Mobile County23.5St. Clair County: 23.4 %St. Clair County23.4Houston County: 23.2 %Houston County23.2Dale County: 23.2 %Dale County23.2Montgomery County: 22.9 %Montgomery County22.9Cleburne County: 22.9 %Cleburne County22.9Morgan County: 22.8 %Morgan County22.8Marengo County: 22.6 %Marengo County22.6Hale County: 22.6 %Hale County22.6Butler County: 22.6 %Butler County22.6Cullman County: 22.5 %Cullman County22.5Washington County: 22.4 %Washington County22.4Escambia County: 22.3 %Escambia County22.3Monroe County: 22.3 %Monroe County22.3Crenshaw County: 22.3 %Crenshaw County22.3Jefferson County: 22.3 %Jefferson County22.3Geneva County: 22.3 %Geneva County22.3Greene County: 22.2 %Greene County22.2Elmore County: 22.1 %Elmore County22.1Madison County: 22.1 %Madison County22.1Randolph County: 22 %Randolph County22Lee County: 21.9 %Lee County21.9Baldwin County: 21.9 %Baldwin County21.9Etowah County: 21.8 %Etowah County21.8Perry County: 21.8 %Perry County21.8Lawrence County: 21.7 %Lawrence County21.7Covington County: 21.7 %Covington County21.7Fayette County: 21.6 %Fayette County21.6
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2017 (%)Change on 2016
1Franklin County25.1+0.1 pts
2DeKalb County25-0.1 pts
3Russell County24.8-0.4 pts
4Autauga County24.7-0.2 pts
5Marshall County24.60 pts
6Shelby County24.2-0.2 pts
7Dallas County24.2-0.3 pts
8Chilton County24-0.1 pts
9Coffee County24-0.1 pts
10Wilcox County23.6-0.4 pts
11Blount County23.60 pts
12Limestone County23.5-0.1 pts
13Mobile County23.5-0.2 pts
14St. Clair County23.4-0.1 pts
15Houston County23.2-0.2 pts
16Dale County23.2-0.1 pts
17Montgomery County22.9-0.2 pts
18Cleburne County22.9-0.2 pts
19Morgan County22.8-0.1 pts
20Marengo County22.6-0 pts
21Hale County22.6-0.5 pts
22Butler County22.6-0.1 pts
23Cullman County22.5-0.1 pts
24Washington County22.4-0.5 pts
25Escambia County22.3+0.2 pts
26Monroe County22.3-0.6 pts
27Crenshaw County22.3-0.1 pts
28Jefferson County22.3-0.2 pts
29Geneva County22.3+0.1 pts
30Greene County22.2-0.4 pts
31Elmore County22.10 pts
32Madison County22.1-0.1 pts
33Randolph County22+0.1 pts
34Lee County21.9-0.1 pts
35Baldwin County21.9-0.1 pts
36Etowah County21.8-0.2 pts
37Perry County21.8-0.5 pts
38Lawrence County21.7-0.1 pts
39Covington County21.7-0.3 pts
40Fayette County21.6-0.1 pts
41Bibb County21.6-0.1 pts
42Clarke County21.5-0.2 pts
43Talladega County21.5-0.3 pts
44Tuscaloosa County21.4+0.2 pts
45Calhoun County21.4-0.2 pts
46Lamar County21.4+0.1 pts
47Walker County21.3-0.2 pts
48Colbert County21.2-0.1 pts
49Jackson County21.1-0.1 pts
50Lowndes County21-0.3 pts
51Henry County20.90 pts
52Marion County20.9-0.2 pts
53Tallapoosa County20.8-0.1 pts
54Winston County20.8-0.1 pts
55Chambers County20.70 pts
56Conecuh County20.7-0.4 pts
57Barbour County20.6-0.5 pts
58Clay County20.6-0.4 pts
59Choctaw County20.3-0.2 pts
60Lauderdale County20.2-0.1 pts
61Pickens County20.2-0.1 pts
62Cherokee County20.1-0.2 pts
63Sumter County19.7-0.3 pts
64Bullock County19.5+0.1 pts
65Pike County19-0 pts
66Macon County17-0.3 pts
67Coosa County17-0.5 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 Alabama by population under 18, 2017) [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 Alabama by population under 18, 2017. 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/alabama-counties?period=2017. 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 Alabama by population under 18, 2017. 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/alabama-counties?period=2017.

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 Alabama by population under 18, 2017 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/population-under-18/alabama-counties?period=2017 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_alabama_by_2017,
  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 Alabama by population under 18, 2017}},
  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/alabama-counties?period=2017. 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 Alabama by population under 18, 2017
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/alabama-counties?period=2017
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-under-18/alabama-counties?period=2017.
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 Alabama by population under 18 using official data, and cite the source.
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Questions

Which county has the highest population under 18?

Franklin County, with 25.1% in 2017, according to the U.S. Census Bureau.

Which county has the lowest population under 18?

Coosa County, with 17% in 2017.

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 Alabama: more rankings