Data / Rankings / Population under 18 / Counties in Indiana

Counties in Indiana by population under 18

LaGrange County had the highest population under 18 of 92 counties in 2014, at 33.9%. Monroe County had the lowest, at 16.4%. The median was 23.3% and the figure for Indiana was 24.1%. Source: the U.S. Census Bureau.

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Highest33.9LaGrange County
Lowest16.4Monroe County
Median23.392 counties
Indiana24.1History

Map of counties, 2014

Adams County: 31.3 %Allen County: 26.3 %Bartholomew County: 24.3 %Benton County: 25.4 %Blackford County: 21.9 %Boone County: 27.3 %Brown County: 19.7 %Carroll County: 23.9 %Cass County: 24.7 %Clark County: 23.3 %Clay County: 23 %Clinton County: 26.2 %Crawford County: 22.1 %Daviess County: 28.9 %Dearborn County: 23.6 %Decatur County: 25 %DeKalb County: 25 %Delaware County: 19.8 %Dubois County: 24.2 %Elkhart County: 28 %Fayette County: 22.6 %Floyd County: 23.3 %Fountain County: 22.9 %Franklin County: 24.8 %Fulton County: 24.1 %Gibson County: 23.5 %Grant County: 20.8 %Greene County: 22.7 %Hamilton County: 29.1 %Hancock County: 24.5 %Harrison County: 22.9 %Hendricks County: 26.5 %Henry County: 21 %Howard County: 22.7 %Huntington County: 22.4 %Jackson County: 24.3 %Jasper County: 24.8 %Jay County: 26.2 %Jefferson County: 21.5 %Jennings County: 24.4 %Johnson County: 25.7 %Knox County: 21.5 %Kosciusko County: 24.7 %LaGrange County: 33.9 %Lake County: 24.6 %LaPorte County: 22 %Lawrence County: 22.2 %Madison County: 22.3 %Marion County: 24.6 %Marshall County: 25.6 %Martin County: 23.6 %Miami County: 21.9 %Monroe County: 16.4 %Montgomery County: 23.4 %Morgan County: 23.7 %Newton County: 22.2 %Noble County: 26.1 %Ohio County: 20.7 %Orange County: 23.7 %Owen County: 22.1 %Parke County: 22.1 %Perry County: 20.5 %Pike County: 22.3 %Porter County: 23.1 %Posey County: 23.1 %Pulaski County: 23.1 %Putnam County: 19.8 %Randolph County: 23.7 %Ripley County: 24.4 %Rush County: 23.3 %St. Joseph County: 23.9 %Scott County: 23 %Shelby County: 23.3 %Spencer County: 22.9 %Starke County: 22.9 %Steuben County: 21.3 %Sullivan County: 21 %Switzerland County: 25.5 %Tippecanoe County: 20.9 %Tipton County: 22.1 %Union County: 23.4 %Vanderburgh County: 22 %Vermillion County: 22.2 %Vigo County: 21 %Wabash County: 22.2 %Warren County: 22.7 %Warrick County: 25 %Washington County: 23.9 %Wayne County: 22.4 %Wells County: 24.1 %White County: 23.4 %Whitley County: 23.4 %
  • Under 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.

Top 40 counties, 2014

LaGrange County: 33.9 %LaGrange County33.9Adams County: 31.3 %Adams County31.3Hamilton County: 29.1 %Hamilton County29.1Daviess County: 28.9 %Daviess County28.9Elkhart County: 28 %Elkhart County28Boone County: 27.3 %Boone County27.3Hendricks County: 26.5 %Hendricks County26.5Allen County: 26.3 %Allen County26.3Clinton County: 26.2 %Clinton County26.2Jay County: 26.2 %Jay County26.2Noble County: 26.1 %Noble County26.1Johnson County: 25.7 %Johnson County25.7Marshall County: 25.6 %Marshall County25.6Switzerland County: 25.5 %Switzerland County25.5Benton County: 25.4 %Benton County25.4DeKalb County: 25 %DeKalb County25Warrick County: 25 %Warrick County25Decatur County: 25 %Decatur County25Jasper County: 24.8 %Jasper County24.8Franklin County: 24.8 %Franklin County24.8Cass County: 24.7 %Cass County24.7Kosciusko County: 24.7 %Kosciusko County24.7Marion County: 24.6 %Marion County24.6Lake County: 24.6 %Lake County24.6Hancock County: 24.5 %Hancock County24.5Jennings County: 24.4 %Jennings County24.4Ripley County: 24.4 %Ripley County24.4Bartholomew County: 24.3 %Bartholomew County24.3Jackson County: 24.3 %Jackson County24.3Dubois County: 24.2 %Dubois County24.2Fulton County: 24.1 %Fulton County24.1Wells County: 24.1 %Wells County24.1Carroll County: 23.9 %Carroll County23.9Washington County: 23.9 %Washington County23.9St. Joseph County: 23.9 %St. Joseph County23.9Orange County: 23.7 %Orange County23.7Randolph County: 23.7 %Randolph County23.7Morgan County: 23.7 %Morgan County23.7Dearborn County: 23.6 %Dearborn County23.6Martin County: 23.6 %Martin County23.6LaGrange County: 33.9 %LaGrange County33.9Adams County: 31.3 %Adams County31.3Hamilton County: 29.1 %Hamilton County29.1Daviess County: 28.9 %Daviess County28.9Elkhart County: 28 %Elkhart County28Boone County: 27.3 %Boone County27.3Hendricks County: 26.5 %Hendricks County26.5Allen County: 26.3 %Allen County26.3Clinton County: 26.2 %Clinton County26.2Jay County: 26.2 %Jay County26.2Noble County: 26.1 %Noble County26.1Johnson County: 25.7 %Johnson County25.7Marshall County: 25.6 %Marshall County25.6Switzerland County: 25.5 %Switzerland County25.5Benton County: 25.4 %Benton County25.4DeKalb County: 25 %DeKalb County25Warrick County: 25 %Warrick County25Decatur County: 25 %Decatur County25Jasper County: 24.8 %Jasper County24.8Franklin County: 24.8 %Franklin County24.8Cass County: 24.7 %Cass County24.7Kosciusko County: 24.7 %Kosciusko County24.7Marion County: 24.6 %Marion County24.6Lake County: 24.6 %Lake County24.6Hancock County: 24.5 %Hancock County24.5Jennings County: 24.4 %Jennings County24.4Ripley County: 24.4 %Ripley County24.4Bartholomew County: 24.3 %Bartholomew County24.3Jackson County: 24.3 %Jackson County24.3Dubois County: 24.2 %Dubois County24.2Fulton County: 24.1 %Fulton County24.1Wells County: 24.1 %Wells County24.1Carroll County: 23.9 %Carroll County23.9Washington County: 23.9 %Washington County23.9St. Joseph County: 23.9 %St. Joseph County23.9Orange County: 23.7 %Orange County23.7Randolph County: 23.7 %Randolph County23.7Morgan County: 23.7 %Morgan County23.7Dearborn County: 23.6 %Dearborn County23.6Martin County: 23.6 %Martin County23.6
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2014 (%)Change on 2013
1LaGrange County33.9-0.2 pts
2Adams County31.3+0.2 pts
3Hamilton County29.1-0.2 pts
4Daviess County28.9-0.1 pts
5Elkhart County28-0.1 pts
6Boone County27.3-0.1 pts
7Hendricks County26.5-0.1 pts
8Allen County26.3-0.2 pts
9Clinton County26.2-0.1 pts
10Jay County26.2+0.2 pts
11Noble County26.1-0.2 pts
12Johnson County25.7-0.2 pts
13Marshall County25.6-0.3 pts
14Switzerland County25.5+0.3 pts
15Benton County25.4+0.7 pts
16DeKalb County25-0.3 pts
17Warrick County25-0.3 pts
18Decatur County25-0 pts
19Jasper County24.8-0.4 pts
20Franklin County24.8-0.2 pts
21Cass County24.7-0.1 pts
22Kosciusko County24.7-0.2 pts
23Marion County24.6-0.1 pts
24Lake County24.6-0.2 pts
25Hancock County24.5-0.5 pts
26Jennings County24.4-0.7 pts
27Ripley County24.4-0.4 pts
28Bartholomew County24.30 pts
29Jackson County24.30 pts
30Dubois County24.2-0.2 pts
31Fulton County24.10 pts
32Wells County24.1-0 pts
33Carroll County23.9-0.3 pts
34Washington County23.9-0.1 pts
35St. Joseph County23.9-0.1 pts
36Orange County23.7-0.3 pts
37Randolph County23.7-0.1 pts
38Morgan County23.7-0.3 pts
39Dearborn County23.6-0.3 pts
40Martin County23.6-0 pts
41Gibson County23.5-0.1 pts
42Whitley County23.4-0.2 pts
43White County23.4-0.1 pts
44Union County23.4-0.3 pts
45Montgomery County23.4+0.1 pts
46Clark County23.3-0 pts
47Floyd County23.3-0 pts
48Rush County23.3-0.3 pts
49Shelby County23.3-0.3 pts
50Porter County23.1-0.2 pts
51Pulaski County23.1-0.2 pts
52Posey County23.1+0.1 pts
53Scott County23-0.3 pts
54Clay County23-0.3 pts
55Harrison County22.9-0.1 pts
56Fountain County22.9-0.3 pts
57Spencer County22.9-0 pts
58Starke County22.9-0.4 pts
59Greene County22.7-0.2 pts
60Howard County22.7-0.2 pts
61Warren County22.7+0.6 pts
62Fayette County22.6-0.4 pts
63Wayne County22.4-0.2 pts
64Huntington County22.4-0.4 pts
65Pike County22.3+0.3 pts
66Madison County22.3-0.2 pts
67Wabash County22.2-0 pts
68Newton County22.2-0.3 pts
69Lawrence County22.2-0.3 pts
70Vermillion County22.2-0.5 pts
71Crawford County22.1-0.6 pts
72Parke County22.1+0.2 pts
73Tipton County22.1-0.1 pts
74Owen County22.1-0.1 pts
75LaPorte County22-0.1 pts
76Vanderburgh County22-0.1 pts
77Miami County21.9-0.2 pts
78Blackford County21.9-0.3 pts
79Jefferson County21.5-0 pts
80Knox County21.50 pts
81Steuben County21.3-0.2 pts
82Henry County21-0.2 pts
83Sullivan County21+0.1 pts
84Vigo County210 pts
85Tippecanoe County20.9+0.1 pts
86Grant County20.8-0.2 pts
87Ohio County20.7+0.1 pts
88Perry County20.5-0.3 pts
89Putnam County19.8-0.3 pts
90Delaware County19.80 pts
91Brown County19.7-0.1 pts
92Monroe County16.4+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 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 Indiana 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, Counties in Indiana 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/indiana-counties?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. Counties in Indiana 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/indiana-counties?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, Counties in Indiana 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/indiana-counties?period=2014 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_indiana_by_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: Counties in Indiana 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/indiana-counties?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: Counties in Indiana 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/indiana-counties?period=2014
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-under-18/indiana-counties?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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Rank Counties in Indiana by population under 18 using official data, and cite the source.
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Questions

Which county has the highest population under 18?

LaGrange County, with 33.9% in 2014, according to the U.S. Census Bureau.

Which county has the lowest population under 18?

Monroe County, with 16.4% 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

Counties in Indiana: more rankings