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

Counties in Louisiana by population aged 18 to 64

West Feliciana Parish had the highest population aged 18 to 64 of 64 counties in 2021, at 66.9%. Tensas Parish had the lowest, at 53.7%. The median was 58.2% and the figure for Louisiana was 59.7%. Source: the U.S. Census Bureau.

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Highest66.9West Feliciana Parish
Lowest53.7Tensas Parish
Median58.264 counties
Louisiana59.7History

Map of counties, 2021

Acadia Parish: 56.7 %Allen Parish: 61 %Ascension Parish: 59.9 %Assumption Parish: 59 %Avoyelles Parish: 57.9 %Beauregard Parish: 57.8 %Bienville Parish: 55.9 %Bossier Parish: 59.4 %Caddo Parish: 57.9 %Calcasieu Parish: 59.3 %Caldwell Parish: 58 %Cameron Parish: 58.2 %Catahoula Parish: 57.7 %Claiborne Parish: 59.3 %Concordia Parish: 57.3 %De Soto Parish: 57 %East Baton Rouge Parish: 62.2 %East Carroll Parish: 65 %East Feliciana Parish: 61.8 %Evangeline Parish: 56.8 %Franklin Parish: 56.5 %Grant Parish: 63 %Iberia Parish: 58.2 %Iberville Parish: 60.8 %Jackson Parish: 57.6 %Jefferson Parish: 59.5 %Jefferson Davis Parish: 57 %Lafayette Parish: 60.8 %Lafourche Parish: 60.2 %LaSalle Parish: 60.3 %Lincoln Parish: 65.7 %Livingston Parish: 60 %Madison Parish: 56.8 %Morehouse Parish: 57.1 %Natchitoches Parish: 60.1 %Orleans Parish: 64.4 %Ouachita Parish: 59.3 %Plaquemines Parish: 60.4 %Pointe Coupee Parish: 56.2 %Rapides Parish: 57.8 %Red River Parish: 55.6 %Richland Parish: 57.9 %Sabine Parish: 54.3 %St. Bernard Parish: 60.2 %St. Charles Parish: 59.7 %St. Helena Parish: 58.4 %St. James Parish: 57.5 %St. John the Baptist Parish: 59.5 %St. Landry Parish: 55.9 %St. Martin Parish: 58.1 %St. Mary Parish: 58 %St. Tammany Parish: 57.6 %Tangipahoa Parish: 59.7 %Tensas Parish: 53.7 %Terrebonne Parish: 59.1 %Union Parish: 56.4 %Vermilion Parish: 57.4 %Vernon Parish: 61.1 %Washington Parish: 56.8 %Webster Parish: 56.3 %West Baton Rouge Parish: 60.4 %West Carroll Parish: 54.4 %West Feliciana Parish: 66.9 %Winn Parish: 60.6 %
  • Under 57
  • 57 to 58
  • 58 to 60
  • 60 to 61
  • 61 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

West Feliciana Parish: 66.9 %West Feliciana Parish66.9Lincoln Parish: 65.7 %Lincoln Parish65.7East Carroll Parish: 65 %East Carroll Parish65Orleans Parish: 64.4 %Orleans Parish64.4Grant Parish: 63 %Grant Parish63East Baton Rouge Parish: 62.2 %East Baton Rouge Parish62.2East Feliciana Parish: 61.8 %East Feliciana Parish61.8Vernon Parish: 61.1 %Vernon Parish61.1Allen Parish: 61 %Allen Parish61Iberville Parish: 60.8 %Iberville Parish60.8Lafayette Parish: 60.8 %Lafayette Parish60.8Winn Parish: 60.6 %Winn Parish60.6West Baton Rouge Parish: 60.4 %West Baton Rouge Parish60.4Plaquemines Parish: 60.4 %Plaquemines Parish60.4LaSalle Parish: 60.3 %LaSalle Parish60.3Lafourche Parish: 60.2 %Lafourche Parish60.2St. Bernard Parish: 60.2 %St. Bernard Parish60.2Natchitoches Parish: 60.1 %Natchitoches Parish60.1Livingston Parish: 60 %Livingston Parish60Ascension Parish: 59.9 %Ascension Parish59.9Tangipahoa Parish: 59.7 %Tangipahoa Parish59.7St. Charles Parish: 59.7 %St. Charles Parish59.7St. John the Baptist Parish: 59.5 %St. John the Baptist Parish59.5Jefferson Parish: 59.5 %Jefferson Parish59.5Bossier Parish: 59.4 %Bossier Parish59.4Claiborne Parish: 59.3 %Claiborne Parish59.3Calcasieu Parish: 59.3 %Calcasieu Parish59.3Ouachita Parish: 59.3 %Ouachita Parish59.3Terrebonne Parish: 59.1 %Terrebonne Parish59.1Assumption Parish: 59 %Assumption Parish59St. Helena Parish: 58.4 %St. Helena Parish58.4Iberia Parish: 58.2 %Iberia Parish58.2Cameron Parish: 58.2 %Cameron Parish58.2St. Martin Parish: 58.1 %St. Martin Parish58.1Caldwell Parish: 58 %Caldwell Parish58St. Mary Parish: 58 %St. Mary Parish58Richland Parish: 57.9 %Richland Parish57.9Avoyelles Parish: 57.9 %Avoyelles Parish57.9Caddo Parish: 57.9 %Caddo Parish57.9Beauregard Parish: 57.8 %Beauregard Parish57.8West Feliciana Parish: 66.9 %West Feliciana Parish66.9Lincoln Parish: 65.7 %Lincoln Parish65.7East Carroll Parish: 65 %East Carroll Parish65Orleans Parish: 64.4 %Orleans Parish64.4Grant Parish: 63 %Grant Parish63East Baton Rouge Parish: 62.2 %East Baton Rouge Parish62.2East Feliciana Parish: 61.8 %East Feliciana Parish61.8Vernon Parish: 61.1 %Vernon Parish61.1Allen Parish: 61 %Allen Parish61Iberville Parish: 60.8 %Iberville Parish60.8Lafayette Parish: 60.8 %Lafayette Parish60.8Winn Parish: 60.6 %Winn Parish60.6West Baton Rouge Parish: 60.4 %West Baton Rouge Parish60.4Plaquemines Parish: 60.4 %Plaquemines Parish60.4LaSalle Parish: 60.3 %LaSalle Parish60.3Lafourche Parish: 60.2 %Lafourche Parish60.2St. Bernard Parish: 60.2 %St. Bernard Parish60.2Natchitoches Parish: 60.1 %Natchitoches Parish60.1Livingston Parish: 60 %Livingston Parish60Ascension Parish: 59.9 %Ascension Parish59.9Tangipahoa Parish: 59.7 %Tangipahoa Parish59.7St. Charles Parish: 59.7 %St. Charles Parish59.7St. John the Baptist Parish: 59.5 %St. John the Baptist Parish59.5Jefferson Parish: 59.5 %Jefferson Parish59.5Bossier Parish: 59.4 %Bossier Parish59.4Claiborne Parish: 59.3 %Claiborne Parish59.3Calcasieu Parish: 59.3 %Calcasieu Parish59.3Ouachita Parish: 59.3 %Ouachita Parish59.3Terrebonne Parish: 59.1 %Terrebonne Parish59.1Assumption Parish: 59 %Assumption Parish59St. Helena Parish: 58.4 %St. Helena Parish58.4Iberia Parish: 58.2 %Iberia Parish58.2Cameron Parish: 58.2 %Cameron Parish58.2St. Martin Parish: 58.1 %St. Martin Parish58.1Caldwell Parish: 58 %Caldwell Parish58St. Mary Parish: 58 %St. Mary Parish58Richland Parish: 57.9 %Richland Parish57.9Avoyelles Parish: 57.9 %Avoyelles Parish57.9Caddo Parish: 57.9 %Caddo Parish57.9Beauregard Parish: 57.8 %Beauregard Parish57.8
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)Change on 2020
1West Feliciana Parish66.9-0.2 pts
2Lincoln Parish65.7-0.1 pts
3East Carroll Parish65+0.5 pts
4Orleans Parish64.4-0.5 pts
5Grant Parish63-0.2 pts
6East Baton Rouge Parish62.2-0.3 pts
7East Feliciana Parish61.8-0.4 pts
8Vernon Parish61.1-0.3 pts
9Allen Parish61+0.1 pts
10Iberville Parish60.8-0.4 pts
11Lafayette Parish60.8-0.5 pts
12Winn Parish60.6-0 pts
13West Baton Rouge Parish60.4-0.4 pts
14Plaquemines Parish60.4+0.1 pts
15LaSalle Parish60.3-0.3 pts
16Lafourche Parish60.2-0.3 pts
17St. Bernard Parish60.2-0.3 pts
18Natchitoches Parish60.1-0.2 pts
19Livingston Parish60-0.1 pts
20Ascension Parish59.9-0.1 pts
21Tangipahoa Parish59.7-0.3 pts
22St. Charles Parish59.7-0.6 pts
23St. John the Baptist Parish59.5-0.4 pts
24Jefferson Parish59.5-0.5 pts
25Bossier Parish59.4-0.2 pts
26Claiborne Parish59.3-0.5 pts
27Calcasieu Parish59.3-0.2 pts
28Ouachita Parish59.3-0.2 pts
29Terrebonne Parish59.1-0.3 pts
30Assumption Parish59-0.4 pts
31St. Helena Parish58.4-0 pts
32Iberia Parish58.2-0.4 pts
33Cameron Parish58.2-1.1 pts
34St. Martin Parish58.1-0.4 pts
35Caldwell Parish58-0.2 pts
36St. Mary Parish58-0.4 pts
37Richland Parish57.9-0.3 pts
38Avoyelles Parish57.9-0.2 pts
39Caddo Parish57.9-0.4 pts
40Beauregard Parish57.8-0.3 pts
41Rapides Parish57.8-0.3 pts
42Catahoula Parish57.7+0.1 pts
43St. Tammany Parish57.6-0.3 pts
44Jackson Parish57.6+0.2 pts
45St. James Parish57.5-0.5 pts
46Vermilion Parish57.4-0.4 pts
47Concordia Parish57.30 pts
48Morehouse Parish57.1-0.3 pts
49Jefferson Davis Parish57-0.1 pts
50De Soto Parish57-0.3 pts
51Washington Parish56.8-0.5 pts
52Madison Parish56.8+0.1 pts
53Evangeline Parish56.8-0.5 pts
54Acadia Parish56.7-0.2 pts
55Franklin Parish56.50 pts
56Union Parish56.4-0.4 pts
57Webster Parish56.3-0.2 pts
58Pointe Coupee Parish56.2-0.3 pts
59St. Landry Parish55.9-0.5 pts
60Bienville Parish55.9-0.2 pts
61Red River Parish55.6-0.1 pts
62West Carroll Parish54.4+0.1 pts
63Sabine Parish54.3-0.4 pts
64Tensas Parish53.7+0.1 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, 2021) [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, 2021. 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=2021. 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, 2021. 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=2021.

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, 2021 [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=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_louisiana_by_2021,
  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, 2021}},
  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=2021. 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, 2021
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=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/louisiana-counties?period=2021.
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 66.9% in 2021, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Tensas Parish, with 53.7% in 2021.

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