Data / Rankings / Population under 18 / Counties in Louisiana

Counties in Louisiana by population under 18

Ascension Parish had the highest population under 18 of 64 counties in 2016, at 27.8%. West Feliciana Parish had the lowest, at 16.4%. The median was 24% and the figure for Louisiana was 23.8%. Source: the U.S. Census Bureau.

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Highest27.8Ascension Parish
Lowest16.4West Feliciana Parish
Median2464 counties
Louisiana23.8History

Map of counties, 2016

Acadia Parish: 26.3 %Allen Parish: 23 %Ascension Parish: 27.8 %Assumption Parish: 22.2 %Avoyelles Parish: 23.5 %Beauregard Parish: 24.6 %Bienville Parish: 23 %Bossier Parish: 25.7 %Caddo Parish: 24.1 %Calcasieu Parish: 24.8 %Caldwell Parish: 22.9 %Cameron Parish: 22.6 %Catahoula Parish: 22.5 %Claiborne Parish: 19.2 %Concordia Parish: 24.4 %De Soto Parish: 24.2 %East Baton Rouge Parish: 22.6 %East Carroll Parish: 23.4 %East Feliciana Parish: 18.6 %Evangeline Parish: 25.5 %Franklin Parish: 25.1 %Grant Parish: 21.3 %Iberia Parish: 25.9 %Iberville Parish: 21.4 %Jackson Parish: 22.1 %Jefferson Parish: 22 %Jefferson Davis Parish: 25.5 %Lafayette Parish: 24.1 %Lafourche Parish: 23.9 %LaSalle Parish: 22.6 %Lincoln Parish: 20.5 %Livingston Parish: 26.7 %Madison Parish: 25.6 %Morehouse Parish: 22.9 %Natchitoches Parish: 23.2 %Orleans Parish: 20.6 %Ouachita Parish: 25.7 %Plaquemines Parish: 26.6 %Pointe Coupee Parish: 22.7 %Rapides Parish: 24.7 %Red River Parish: 24.6 %Richland Parish: 24 %Sabine Parish: 23.9 %St. Bernard Parish: 27.8 %St. Charles Parish: 25.2 %St. Helena Parish: 22.9 %St. James Parish: 23.8 %St. John the Baptist Parish: 24.4 %St. Landry Parish: 26.3 %St. Martin Parish: 24.8 %St. Mary Parish: 24.6 %St. Tammany Parish: 24.2 %Tangipahoa Parish: 24.3 %Tensas Parish: 23.8 %Terrebonne Parish: 25.7 %Union Parish: 22.1 %Vermilion Parish: 26 %Vernon Parish: 26.2 %Washington Parish: 23.8 %Webster Parish: 22.7 %West Baton Rouge Parish: 24.7 %West Carroll Parish: 23.4 %West Feliciana Parish: 16.4 %Winn Parish: 21.6 %
  • Under 22
  • 22 to 23
  • 23 to 24
  • 24 to 25
  • 25 to 26
  • 26 and over
%, 2016. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2016

Ascension Parish: 27.8 %Ascension Parish27.8St. Bernard Parish: 27.8 %St. Bernard Parish27.8Livingston Parish: 26.7 %Livingston Parish26.7Plaquemines Parish: 26.6 %Plaquemines Parish26.6St. Landry Parish: 26.3 %St. Landry Parish26.3Acadia Parish: 26.3 %Acadia Parish26.3Vernon Parish: 26.2 %Vernon Parish26.2Vermilion Parish: 26 %Vermilion Parish26Iberia Parish: 25.9 %Iberia Parish25.9Ouachita Parish: 25.7 %Ouachita Parish25.7Bossier Parish: 25.7 %Bossier Parish25.7Terrebonne Parish: 25.7 %Terrebonne Parish25.7Madison Parish: 25.6 %Madison Parish25.6Evangeline Parish: 25.5 %Evangeline Parish25.5Jefferson Davis Parish: 25.5 %Jefferson Davis Parish25.5St. Charles Parish: 25.2 %St. Charles Parish25.2Franklin Parish: 25.1 %Franklin Parish25.1St. Martin Parish: 24.8 %St. Martin Parish24.8Calcasieu Parish: 24.8 %Calcasieu Parish24.8Rapides Parish: 24.7 %Rapides Parish24.7West Baton Rouge Parish: 24.7 %West Baton Rouge Parish24.7Beauregard Parish: 24.6 %Beauregard Parish24.6Red River Parish: 24.6 %Red River Parish24.6St. Mary Parish: 24.6 %St. Mary Parish24.6St. John the Baptist Parish: 24.4 %St. John the Baptist Parish24.4Concordia Parish: 24.4 %Concordia Parish24.4Tangipahoa Parish: 24.3 %Tangipahoa Parish24.3St. Tammany Parish: 24.2 %St. Tammany Parish24.2De Soto Parish: 24.2 %De Soto Parish24.2Caddo Parish: 24.1 %Caddo Parish24.1Lafayette Parish: 24.1 %Lafayette Parish24.1Richland Parish: 24 %Richland Parish24Sabine Parish: 23.9 %Sabine Parish23.9Lafourche Parish: 23.9 %Lafourche Parish23.9Washington Parish: 23.8 %Washington Parish23.8St. James Parish: 23.8 %St. James Parish23.8Tensas Parish: 23.8 %Tensas Parish23.8Avoyelles Parish: 23.5 %Avoyelles Parish23.5East Carroll Parish: 23.4 %East Carroll Parish23.4West Carroll Parish: 23.4 %West Carroll Parish23.4Ascension Parish: 27.8 %Ascension Parish27.8St. Bernard Parish: 27.8 %St. Bernard Parish27.8Livingston Parish: 26.7 %Livingston Parish26.7Plaquemines Parish: 26.6 %Plaquemines Parish26.6St. Landry Parish: 26.3 %St. Landry Parish26.3Acadia Parish: 26.3 %Acadia Parish26.3Vernon Parish: 26.2 %Vernon Parish26.2Vermilion Parish: 26 %Vermilion Parish26Iberia Parish: 25.9 %Iberia Parish25.9Ouachita Parish: 25.7 %Ouachita Parish25.7Bossier Parish: 25.7 %Bossier Parish25.7Terrebonne Parish: 25.7 %Terrebonne Parish25.7Madison Parish: 25.6 %Madison Parish25.6Evangeline Parish: 25.5 %Evangeline Parish25.5Jefferson Davis Parish: 25.5 %Jefferson Davis Parish25.5St. Charles Parish: 25.2 %St. Charles Parish25.2Franklin Parish: 25.1 %Franklin Parish25.1St. Martin Parish: 24.8 %St. Martin Parish24.8Calcasieu Parish: 24.8 %Calcasieu Parish24.8Rapides Parish: 24.7 %Rapides Parish24.7West Baton Rouge Parish: 24.7 %West Baton Rouge Parish24.7Beauregard Parish: 24.6 %Beauregard Parish24.6Red River Parish: 24.6 %Red River Parish24.6St. Mary Parish: 24.6 %St. Mary Parish24.6St. John the Baptist Parish: 24.4 %St. John the Baptist Parish24.4Concordia Parish: 24.4 %Concordia Parish24.4Tangipahoa Parish: 24.3 %Tangipahoa Parish24.3St. Tammany Parish: 24.2 %St. Tammany Parish24.2De Soto Parish: 24.2 %De Soto Parish24.2Caddo Parish: 24.1 %Caddo Parish24.1Lafayette Parish: 24.1 %Lafayette Parish24.1Richland Parish: 24 %Richland Parish24Sabine Parish: 23.9 %Sabine Parish23.9Lafourche Parish: 23.9 %Lafourche Parish23.9Washington Parish: 23.8 %Washington Parish23.8St. James Parish: 23.8 %St. James Parish23.8Tensas Parish: 23.8 %Tensas Parish23.8Avoyelles Parish: 23.5 %Avoyelles Parish23.5East Carroll Parish: 23.4 %East Carroll Parish23.4West Carroll Parish: 23.4 %West Carroll Parish23.4
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2016 (%)Change on 2015
1Ascension Parish27.8-0 pts
2St. Bernard Parish27.8-0 pts
3Livingston Parish26.7+0.1 pts
4Plaquemines Parish26.6-0.3 pts
5St. Landry Parish26.3-0 pts
6Acadia Parish26.3-0.2 pts
7Vernon Parish26.2+0.1 pts
8Vermilion Parish26-0.1 pts
9Iberia Parish25.9-0.2 pts
10Ouachita Parish25.7-0.1 pts
11Bossier Parish25.7+0.1 pts
12Terrebonne Parish25.7-0.1 pts
13Madison Parish25.6+0.4 pts
14Evangeline Parish25.5-0.2 pts
15Jefferson Davis Parish25.5-0.2 pts
16St. Charles Parish25.2-0.2 pts
17Franklin Parish25.1+0.2 pts
18St. Martin Parish24.8-0.2 pts
19Calcasieu Parish24.80 pts
20Rapides Parish24.7-0.1 pts
21West Baton Rouge Parish24.70 pts
22Beauregard Parish24.6-0.1 pts
23Red River Parish24.6-0.1 pts
24St. Mary Parish24.6-0.2 pts
25St. John the Baptist Parish24.4-0.2 pts
26Concordia Parish24.4-0.1 pts
27Tangipahoa Parish24.3-0 pts
28St. Tammany Parish24.2-0.2 pts
29De Soto Parish24.2-0.2 pts
30Caddo Parish24.1-0.1 pts
31Lafayette Parish24.1-0.1 pts
32Richland Parish24-0.4 pts
33Sabine Parish23.9-0.2 pts
34Lafourche Parish23.9+0.1 pts
35Washington Parish23.8-0.1 pts
36St. James Parish23.80 pts
37Tensas Parish23.8-1 pts
38Avoyelles Parish23.5-0.1 pts
39East Carroll Parish23.4-0.1 pts
40West Carroll Parish23.4-0.4 pts
41Natchitoches Parish23.20 pts
42Allen Parish23+0.1 pts
43Bienville Parish23+0.2 pts
44St. Helena Parish22.9-0.3 pts
45Caldwell Parish22.9-0.2 pts
46Morehouse Parish22.9-0.6 pts
47Pointe Coupee Parish22.7-0.1 pts
48Webster Parish22.7-0.1 pts
49Cameron Parish22.6-0.4 pts
50East Baton Rouge Parish22.6-0.1 pts
51LaSalle Parish22.6-0.2 pts
52Catahoula Parish22.5-0.3 pts
53Assumption Parish22.2-0.2 pts
54Jackson Parish22.1-0.3 pts
55Union Parish22.1-0.4 pts
56Jefferson Parish22+0.1 pts
57Winn Parish21.6-0.1 pts
58Iberville Parish21.4-0.3 pts
59Grant Parish21.30 pts
60Orleans Parish20.6-0.1 pts
61Lincoln Parish20.5-0.1 pts
62Claiborne Parish19.2+0.4 pts
63East Feliciana Parish18.6-0.2 pts
64West Feliciana Parish16.40 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 Louisiana by population under 18, 2016) [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 Louisiana by population under 18, 2016. 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/louisiana-counties?period=2016. 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 Louisiana by population under 18, 2016. 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/louisiana-counties?period=2016.

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 Louisiana by population under 18, 2016 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/population-under-18/louisiana-counties?period=2016 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_louisiana_by_2016,
  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 Louisiana by population under 18, 2016}},
  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/louisiana-counties?period=2016. 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 Louisiana by population under 18, 2016
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/louisiana-counties?period=2016
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-under-18/louisiana-counties?period=2016.
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 county has the highest population under 18?

Ascension Parish, with 27.8% in 2016, according to the U.S. Census Bureau.

Which county has the lowest population under 18?

West Feliciana Parish, with 16.4% in 2016.

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 Louisiana: more rankings