Data / Rankings / Population aged 18 to 64 / Counties in Louisiana

Counties in Louisiana by population aged 18 to 64

Winn Parish had the highest population aged 18 to 64 of 64 counties in 2024, at 65.7%. Tensas Parish had the lowest, at 51.3%. The median was 57.4% and the figure for Louisiana was 58.7%. Source: the U.S. Census Bureau.

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Highest65.7Winn Parish
Lowest51.3Tensas Parish
Median57.464 counties
Louisiana58.7History

Map of counties, 2024

Acadia Parish: 55.3 %Allen Parish: 61 %Ascension Parish: 59.8 %Assumption Parish: 58.3 %Avoyelles Parish: 56.8 %Beauregard Parish: 56.7 %Bienville Parish: 54.3 %Bossier Parish: 58.7 %Caddo Parish: 56.8 %Calcasieu Parish: 58.2 %Caldwell Parish: 57.8 %Cameron Parish: 56.5 %Catahoula Parish: 56.2 %Claiborne Parish: 57.3 %Concordia Parish: 56.9 %De Soto Parish: 56 %East Baton Rouge Parish: 60.9 %East Carroll Parish: 64.9 %East Feliciana Parish: 59.4 %Evangeline Parish: 56.8 %Franklin Parish: 55.6 %Grant Parish: 62.2 %Iberia Parish: 56.7 %Iberville Parish: 59.4 %Jackson Parish: 60 %Jefferson Parish: 58 %Jefferson Davis Parish: 56.1 %Lafayette Parish: 59.5 %Lafourche Parish: 59 %LaSalle Parish: 60.8 %Lincoln Parish: 64.9 %Livingston Parish: 59.8 %Madison Parish: 56 %Morehouse Parish: 55.3 %Natchitoches Parish: 59.3 %Orleans Parish: 62.7 %Ouachita Parish: 58.9 %Plaquemines Parish: 60.4 %Pointe Coupee Parish: 54.6 %Rapides Parish: 56.7 %Red River Parish: 54.7 %Richland Parish: 56.6 %Sabine Parish: 53.4 %St. Bernard Parish: 59.7 %St. Charles Parish: 58.5 %St. Helena Parish: 57.6 %St. James Parish: 56.1 %St. John the Baptist Parish: 58.3 %St. Landry Parish: 54.8 %St. Martin Parish: 56.4 %St. Mary Parish: 55.9 %St. Tammany Parish: 56.8 %Tangipahoa Parish: 59 %Tensas Parish: 51.3 %Terrebonne Parish: 58.5 %Union Parish: 55.1 %Vermilion Parish: 56.5 %Vernon Parish: 59.6 %Washington Parish: 55.5 %Webster Parish: 55.2 %West Baton Rouge Parish: 59.8 %West Carroll Parish: 53.4 %West Feliciana Parish: 64.9 %Winn Parish: 65.7 %
  • Under 55
  • 55 to 56
  • 56 to 57
  • 57 to 59
  • 59 to 60
  • 60 and over
%, 2024. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2024

Winn Parish: 65.7 %Winn Parish65.7West Feliciana Parish: 64.9 %West Feliciana Parish64.9East Carroll Parish: 64.9 %East Carroll Parish64.9Lincoln Parish: 64.9 %Lincoln Parish64.9Orleans Parish: 62.7 %Orleans Parish62.7Grant Parish: 62.2 %Grant Parish62.2Allen Parish: 61 %Allen Parish61East Baton Rouge Parish: 60.9 %East Baton Rouge Parish60.9LaSalle Parish: 60.8 %LaSalle Parish60.8Plaquemines Parish: 60.4 %Plaquemines Parish60.4Jackson Parish: 60 %Jackson Parish60Livingston Parish: 59.8 %Livingston Parish59.8Ascension Parish: 59.8 %Ascension Parish59.8West Baton Rouge Parish: 59.8 %West Baton Rouge Parish59.8St. Bernard Parish: 59.7 %St. Bernard Parish59.7Vernon Parish: 59.6 %Vernon Parish59.6Lafayette Parish: 59.5 %Lafayette Parish59.5East Feliciana Parish: 59.4 %East Feliciana Parish59.4Iberville Parish: 59.4 %Iberville Parish59.4Natchitoches Parish: 59.3 %Natchitoches Parish59.3Lafourche Parish: 59 %Lafourche Parish59Tangipahoa Parish: 59 %Tangipahoa Parish59Ouachita Parish: 58.9 %Ouachita Parish58.9Bossier Parish: 58.7 %Bossier Parish58.7Terrebonne Parish: 58.5 %Terrebonne Parish58.5St. Charles Parish: 58.5 %St. Charles Parish58.5St. John the Baptist Parish: 58.3 %St. John the Baptist Parish58.3Assumption Parish: 58.3 %Assumption Parish58.3Calcasieu Parish: 58.2 %Calcasieu Parish58.2Jefferson Parish: 58 %Jefferson Parish58Caldwell Parish: 57.8 %Caldwell Parish57.8St. Helena Parish: 57.6 %St. Helena Parish57.6Claiborne Parish: 57.3 %Claiborne Parish57.3Concordia Parish: 56.9 %Concordia Parish56.9Evangeline Parish: 56.8 %Evangeline Parish56.8St. Tammany Parish: 56.8 %St. Tammany Parish56.8Avoyelles Parish: 56.8 %Avoyelles Parish56.8Caddo Parish: 56.8 %Caddo Parish56.8Iberia Parish: 56.7 %Iberia Parish56.7Beauregard Parish: 56.7 %Beauregard Parish56.7Winn Parish: 65.7 %Winn Parish65.7West Feliciana Parish: 64.9 %West Feliciana Parish64.9East Carroll Parish: 64.9 %East Carroll Parish64.9Lincoln Parish: 64.9 %Lincoln Parish64.9Orleans Parish: 62.7 %Orleans Parish62.7Grant Parish: 62.2 %Grant Parish62.2Allen Parish: 61 %Allen Parish61East Baton Rouge Parish: 60.9 %East Baton Rouge Parish60.9LaSalle Parish: 60.8 %LaSalle Parish60.8Plaquemines Parish: 60.4 %Plaquemines Parish60.4Jackson Parish: 60 %Jackson Parish60Livingston Parish: 59.8 %Livingston Parish59.8Ascension Parish: 59.8 %Ascension Parish59.8West Baton Rouge Parish: 59.8 %West Baton Rouge Parish59.8St. Bernard Parish: 59.7 %St. Bernard Parish59.7Vernon Parish: 59.6 %Vernon Parish59.6Lafayette Parish: 59.5 %Lafayette Parish59.5East Feliciana Parish: 59.4 %East Feliciana Parish59.4Iberville Parish: 59.4 %Iberville Parish59.4Natchitoches Parish: 59.3 %Natchitoches Parish59.3Lafourche Parish: 59 %Lafourche Parish59Tangipahoa Parish: 59 %Tangipahoa Parish59Ouachita Parish: 58.9 %Ouachita Parish58.9Bossier Parish: 58.7 %Bossier Parish58.7Terrebonne Parish: 58.5 %Terrebonne Parish58.5St. Charles Parish: 58.5 %St. Charles Parish58.5St. John the Baptist Parish: 58.3 %St. John the Baptist Parish58.3Assumption Parish: 58.3 %Assumption Parish58.3Calcasieu Parish: 58.2 %Calcasieu Parish58.2Jefferson Parish: 58 %Jefferson Parish58Caldwell Parish: 57.8 %Caldwell Parish57.8St. Helena Parish: 57.6 %St. Helena Parish57.6Claiborne Parish: 57.3 %Claiborne Parish57.3Concordia Parish: 56.9 %Concordia Parish56.9Evangeline Parish: 56.8 %Evangeline Parish56.8St. Tammany Parish: 56.8 %St. Tammany Parish56.8Avoyelles Parish: 56.8 %Avoyelles Parish56.8Caddo Parish: 56.8 %Caddo Parish56.8Iberia Parish: 56.7 %Iberia Parish56.7Beauregard Parish: 56.7 %Beauregard Parish56.7
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2024 (%)Change on 2023
1Winn Parish65.7+2.8 pts
2West Feliciana Parish64.9-0.4 pts
3East Carroll Parish64.9-0.2 pts
4Lincoln Parish64.9-0 pts
5Orleans Parish62.7-0.6 pts
6Grant Parish62.2-0.2 pts
7Allen Parish61-0.2 pts
8East Baton Rouge Parish60.9-0.3 pts
9LaSalle Parish60.8+0.1 pts
10Plaquemines Parish60.4+0.1 pts
11Jackson Parish60+1.3 pts
12Livingston Parish59.8+0.1 pts
13Ascension Parish59.80 pts
14West Baton Rouge Parish59.8-0.3 pts
15St. Bernard Parish59.7-0.1 pts
16Vernon Parish59.6-0.3 pts
17Lafayette Parish59.5-0.3 pts
18East Feliciana Parish59.4-0.7 pts
19Iberville Parish59.4-0.3 pts
20Natchitoches Parish59.3-0.4 pts
21Lafourche Parish59-0.4 pts
22Tangipahoa Parish59-0.1 pts
23Ouachita Parish58.9-0.1 pts
24Bossier Parish58.7-0.2 pts
25Terrebonne Parish58.5-0.2 pts
26St. Charles Parish58.5-0.3 pts
27St. John the Baptist Parish58.3-0.1 pts
28Assumption Parish58.3-0.2 pts
29Calcasieu Parish58.2-0.3 pts
30Jefferson Parish58-0.4 pts
31Caldwell Parish57.8-0.3 pts
32St. Helena Parish57.60 pts
33Claiborne Parish57.3-0.5 pts
34Concordia Parish56.9+0.2 pts
35Evangeline Parish56.8-0.2 pts
36St. Tammany Parish56.8-0.2 pts
37Avoyelles Parish56.8-0.3 pts
38Caddo Parish56.8-0.4 pts
39Iberia Parish56.7-0.4 pts
40Beauregard Parish56.7-0.4 pts
41Rapides Parish56.7-0.3 pts
42Richland Parish56.6-0.1 pts
43Cameron Parish56.5-0.2 pts
44Vermilion Parish56.5-0.1 pts
45St. Martin Parish56.4-0.7 pts
46Catahoula Parish56.2-0.5 pts
47St. James Parish56.1-0.3 pts
48Jefferson Davis Parish56.1-0.3 pts
49Madison Parish56-0.2 pts
50De Soto Parish56+0.1 pts
51St. Mary Parish55.9-0.7 pts
52Franklin Parish55.6-0 pts
53Washington Parish55.5-0.4 pts
54Morehouse Parish55.3-0.6 pts
55Acadia Parish55.3-0.3 pts
56Webster Parish55.2-0.3 pts
57Union Parish55.1-0.6 pts
58St. Landry Parish54.8-0.4 pts
59Red River Parish54.7-0.6 pts
60Pointe Coupee Parish54.6-0.5 pts
61Bienville Parish54.3-0.6 pts
62Sabine Parish53.4-0.4 pts
63West Carroll Parish53.4-0.3 pts
64Tensas Parish51.3-0.9 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, 2024) [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, 2024. 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=2024. 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, 2024. 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=2024.

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, 2024 [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=2024 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_louisiana_by_2024,
  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, 2024}},
  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=2024. 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, 2024
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=2024
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/louisiana-counties?period=2024.
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?

Winn Parish, with 65.7% in 2024, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Tensas Parish, with 51.3% in 2024.

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