Counties in Louisiana by population aged 18 to 64

West Feliciana Parish had the highest population aged 18 to 64 of 64 counties in 2023, at 65.2%. Tensas Parish had the lowest, at 52.2%. The median was 57.7% and the figure for Louisiana was 59%. Source: the U.S. Census Bureau.

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Lowest52.2Tensas Parish
Median57.764 counties
Louisiana59History

Map of counties, 2023

Acadia Parish: 55.7 %Allen Parish: 61.2 %Ascension Parish: 59.8 %Assumption Parish: 58.5 %Avoyelles Parish: 57 %Beauregard Parish: 57 %Bienville Parish: 54.9 %Bossier Parish: 58.8 %Caddo Parish: 57.1 %Calcasieu Parish: 58.5 %Caldwell Parish: 58.2 %Cameron Parish: 56.7 %Catahoula Parish: 56.8 %Claiborne Parish: 57.8 %Concordia Parish: 56.8 %De Soto Parish: 55.9 %East Baton Rouge Parish: 61.3 %East Carroll Parish: 65.1 %East Feliciana Parish: 60.1 %Evangeline Parish: 57 %Franklin Parish: 55.6 %Grant Parish: 62.4 %Iberia Parish: 57.2 %Iberville Parish: 59.7 %Jackson Parish: 58.7 %Jefferson Parish: 58.4 %Jefferson Davis Parish: 56.4 %Lafayette Parish: 59.8 %Lafourche Parish: 59.4 %LaSalle Parish: 60.7 %Lincoln Parish: 64.9 %Livingston Parish: 59.8 %Madison Parish: 56.2 %Morehouse Parish: 55.9 %Natchitoches Parish: 59.6 %Orleans Parish: 63.3 %Ouachita Parish: 59 %Plaquemines Parish: 60.3 %Pointe Coupee Parish: 55.1 %Rapides Parish: 57 %Red River Parish: 55.3 %Richland Parish: 56.7 %Sabine Parish: 53.8 %St. Bernard Parish: 59.8 %St. Charles Parish: 58.8 %St. Helena Parish: 57.6 %St. James Parish: 56.5 %St. John the Baptist Parish: 58.4 %St. Landry Parish: 55.2 %St. Martin Parish: 57.1 %St. Mary Parish: 56.5 %St. Tammany Parish: 57 %Tangipahoa Parish: 59.2 %Tensas Parish: 52.2 %Terrebonne Parish: 58.7 %Union Parish: 55.7 %Vermilion Parish: 56.6 %Vernon Parish: 59.9 %Washington Parish: 55.9 %Webster Parish: 55.4 %West Baton Rouge Parish: 60.1 %West Carroll Parish: 53.7 %West Feliciana Parish: 65.2 %Winn Parish: 62.9 %
  • Under 56
  • 56 to 57
  • 57 to 58
  • 58 to 59
  • 59 to 60
  • 60 and over
%, 2023. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2023

West Feliciana Parish: 65.2 %West Feliciana Parish65.2East Carroll Parish: 65.1 %East Carroll Parish65.1Lincoln Parish: 64.9 %Lincoln Parish64.9Orleans Parish: 63.3 %Orleans Parish63.3Winn Parish: 62.9 %Winn Parish62.9Grant Parish: 62.4 %Grant Parish62.4East Baton Rouge Parish: 61.3 %East Baton Rouge Parish61.3Allen Parish: 61.2 %Allen Parish61.2LaSalle Parish: 60.7 %LaSalle Parish60.7Plaquemines Parish: 60.3 %Plaquemines Parish60.3East Feliciana Parish: 60.1 %East Feliciana Parish60.1West Baton Rouge Parish: 60.1 %West Baton Rouge Parish60.1Vernon Parish: 59.9 %Vernon Parish59.9Lafayette Parish: 59.8 %Lafayette Parish59.8St. Bernard Parish: 59.8 %St. Bernard Parish59.8Ascension Parish: 59.8 %Ascension Parish59.8Livingston Parish: 59.8 %Livingston Parish59.8Iberville Parish: 59.7 %Iberville Parish59.7Natchitoches Parish: 59.6 %Natchitoches Parish59.6Lafourche Parish: 59.4 %Lafourche Parish59.4Tangipahoa Parish: 59.2 %Tangipahoa Parish59.2Ouachita Parish: 59 %Ouachita Parish59Bossier Parish: 58.8 %Bossier Parish58.8St. Charles Parish: 58.8 %St. Charles Parish58.8Jackson Parish: 58.7 %Jackson Parish58.7Terrebonne Parish: 58.7 %Terrebonne Parish58.7Calcasieu Parish: 58.5 %Calcasieu Parish58.5Assumption Parish: 58.5 %Assumption Parish58.5Jefferson Parish: 58.4 %Jefferson Parish58.4St. John the Baptist Parish: 58.4 %St. John the Baptist Parish58.4Caldwell Parish: 58.2 %Caldwell Parish58.2Claiborne Parish: 57.8 %Claiborne Parish57.8St. Helena Parish: 57.6 %St. Helena Parish57.6Iberia Parish: 57.2 %Iberia Parish57.2Caddo Parish: 57.1 %Caddo Parish57.1St. Martin Parish: 57.1 %St. Martin Parish57.1Beauregard Parish: 57 %Beauregard Parish57Evangeline Parish: 57 %Evangeline Parish57Avoyelles Parish: 57 %Avoyelles Parish57St. Tammany Parish: 57 %St. Tammany Parish57West Feliciana Parish: 65.2 %West Feliciana Parish65.2East Carroll Parish: 65.1 %East Carroll Parish65.1Lincoln Parish: 64.9 %Lincoln Parish64.9Orleans Parish: 63.3 %Orleans Parish63.3Winn Parish: 62.9 %Winn Parish62.9Grant Parish: 62.4 %Grant Parish62.4East Baton Rouge Parish: 61.3 %East Baton Rouge Parish61.3Allen Parish: 61.2 %Allen Parish61.2LaSalle Parish: 60.7 %LaSalle Parish60.7Plaquemines Parish: 60.3 %Plaquemines Parish60.3East Feliciana Parish: 60.1 %East Feliciana Parish60.1West Baton Rouge Parish: 60.1 %West Baton Rouge Parish60.1Vernon Parish: 59.9 %Vernon Parish59.9Lafayette Parish: 59.8 %Lafayette Parish59.8St. Bernard Parish: 59.8 %St. Bernard Parish59.8Ascension Parish: 59.8 %Ascension Parish59.8Livingston Parish: 59.8 %Livingston Parish59.8Iberville Parish: 59.7 %Iberville Parish59.7Natchitoches Parish: 59.6 %Natchitoches Parish59.6Lafourche Parish: 59.4 %Lafourche Parish59.4Tangipahoa Parish: 59.2 %Tangipahoa Parish59.2Ouachita Parish: 59 %Ouachita Parish59Bossier Parish: 58.8 %Bossier Parish58.8St. Charles Parish: 58.8 %St. Charles Parish58.8Jackson Parish: 58.7 %Jackson Parish58.7Terrebonne Parish: 58.7 %Terrebonne Parish58.7Calcasieu Parish: 58.5 %Calcasieu Parish58.5Assumption Parish: 58.5 %Assumption Parish58.5Jefferson Parish: 58.4 %Jefferson Parish58.4St. John the Baptist Parish: 58.4 %St. John the Baptist Parish58.4Caldwell Parish: 58.2 %Caldwell Parish58.2Claiborne Parish: 57.8 %Claiborne Parish57.8St. Helena Parish: 57.6 %St. Helena Parish57.6Iberia Parish: 57.2 %Iberia Parish57.2Caddo Parish: 57.1 %Caddo Parish57.1St. Martin Parish: 57.1 %St. Martin Parish57.1Beauregard Parish: 57 %Beauregard Parish57Evangeline Parish: 57 %Evangeline Parish57Avoyelles Parish: 57 %Avoyelles Parish57St. Tammany Parish: 57 %St. Tammany Parish57
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2023 (%)Change on 2022
1West Feliciana Parish65.2-0.7 pts
2East Carroll Parish65.1-0.1 pts
3Lincoln Parish64.9-0.3 pts
4Orleans Parish63.3-0.6 pts
5Winn Parish62.9+1.4 pts
6Grant Parish62.4-0 pts
7East Baton Rouge Parish61.3-0.5 pts
8Allen Parish61.2+0.1 pts
9LaSalle Parish60.7+0.2 pts
10Plaquemines Parish60.3+0.1 pts
11East Feliciana Parish60.1-0.9 pts
12West Baton Rouge Parish60.1-0.1 pts
13Vernon Parish59.9-0.4 pts
14Lafayette Parish59.8-0.4 pts
15St. Bernard Parish59.8-0.3 pts
16Ascension Parish59.8-0 pts
17Livingston Parish59.8-0.1 pts
18Iberville Parish59.7-0.5 pts
19Natchitoches Parish59.6-0.1 pts
20Lafourche Parish59.4-0.4 pts
21Tangipahoa Parish59.2-0.3 pts
22Ouachita Parish59-0.1 pts
23Bossier Parish58.8-0.2 pts
24St. Charles Parish58.8-0.4 pts
25Jackson Parish58.7+0.7 pts
26Terrebonne Parish58.7-0.2 pts
27Calcasieu Parish58.5-0.5 pts
28Assumption Parish58.5-0.3 pts
29Jefferson Parish58.4-0.5 pts
30St. John the Baptist Parish58.4-0.7 pts
31Caldwell Parish58.2+0.5 pts
32Claiborne Parish57.8-0.6 pts
33St. Helena Parish57.6-0.3 pts
34Iberia Parish57.2-0.6 pts
35Caddo Parish57.1-0.3 pts
36St. Martin Parish57.1-0.3 pts
37Beauregard Parish57-0.3 pts
38Evangeline Parish57+0.2 pts
39Avoyelles Parish57-0.5 pts
40St. Tammany Parish57-0.2 pts
41Rapides Parish57-0.4 pts
42Concordia Parish56.8-0.2 pts
43Catahoula Parish56.8-0.4 pts
44Richland Parish56.7-0.3 pts
45Cameron Parish56.7-0.9 pts
46Vermilion Parish56.6-0.3 pts
47St. Mary Parish56.5-0.6 pts
48St. James Parish56.5-0.5 pts
49Jefferson Davis Parish56.4-0.3 pts
50Madison Parish56.20 pts
51De Soto Parish55.9-0.5 pts
52Morehouse Parish55.9-0.7 pts
53Washington Parish55.9-0.6 pts
54Union Parish55.7-0.5 pts
55Acadia Parish55.7-0.4 pts
56Franklin Parish55.6-0.4 pts
57Webster Parish55.4-0.6 pts
58Red River Parish55.3+0.1 pts
59St. Landry Parish55.2-0.4 pts
60Pointe Coupee Parish55.1-0.4 pts
61Bienville Parish54.9-0.5 pts
62Sabine Parish53.8-0.5 pts
63West Carroll Parish53.7-0.2 pts
64Tensas Parish52.2-0.6 pts

Other periods

About this ranking

Residents aged 18 to 64 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.

Not comparable with working-age shares for ages 15 to 64 used in EU and World Bank statistics.

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 18 to 64 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 18 to 64 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 aged 18 to 64, 2023) [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 18 to 64 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 aged 18 to 64, 2023. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/population-18-64/louisiana-counties?period=2023. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program, county population by age and sex: residents aged 18 to 64 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 aged 18 to 64, 2023. 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-18-64/louisiana-counties?period=2023.

Harvard

U.S. Census Bureau (2026) Population Estimates Program, county population by age and sex: residents aged 18 to 64 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 aged 18 to 64, 2023 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/population-18-64/louisiana-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_louisiana_by_2023,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program, county population by age and sex: residents aged 18 to 64 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 aged 18 to 64, 2023}},
  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-18-64/louisiana-counties?period=2023. Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 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 18 to 64 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 aged 18 to 64, 2023
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-18-64/louisiana-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/louisiana-counties?period=2023.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 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 aged 18 to 64?

West Feliciana Parish, with 65.2% in 2023, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Tensas Parish, with 52.2% in 2023.

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 18 to 64 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 aged 18 to 64: other rankings

Counties in Louisiana: more rankings