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 2019, at 68%. Tensas Parish had the lowest, at 53.5%. The median was 59.3% and the figure for Louisiana was 60.6%. Source: the U.S. Census Bureau.

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Highest68West Feliciana Parish
Lowest53.5Tensas Parish
Median59.364 counties
Louisiana60.6History

Map of counties, 2019

Acadia Parish: 57.7 %Allen Parish: 61.5 %Ascension Parish: 60.5 %Assumption Parish: 60.1 %Avoyelles Parish: 59 %Beauregard Parish: 58.7 %Bienville Parish: 56.5 %Bossier Parish: 59.9 %Caddo Parish: 58.8 %Calcasieu Parish: 60 %Caldwell Parish: 59.1 %Cameron Parish: 61.1 %Catahoula Parish: 58.7 %Claiborne Parish: 60.8 %Concordia Parish: 58.1 %De Soto Parish: 58 %East Baton Rouge Parish: 62.9 %East Carroll Parish: 64.2 %East Feliciana Parish: 63.1 %Evangeline Parish: 58.1 %Franklin Parish: 56.9 %Grant Parish: 63.6 %Iberia Parish: 59.2 %Iberville Parish: 62 %Jackson Parish: 57.4 %Jefferson Parish: 60.7 %Jefferson Davis Parish: 57.3 %Lafayette Parish: 62 %Lafourche Parish: 60.8 %LaSalle Parish: 61.2 %Lincoln Parish: 65.7 %Livingston Parish: 60.4 %Madison Parish: 57.9 %Morehouse Parish: 57.9 %Natchitoches Parish: 60.7 %Orleans Parish: 65.4 %Ouachita Parish: 59.8 %Plaquemines Parish: 60.6 %Pointe Coupee Parish: 57.2 %Rapides Parish: 58.7 %Red River Parish: 56.7 %Richland Parish: 59 %Sabine Parish: 55.6 %St. Bernard Parish: 61 %St. Charles Parish: 61 %St. Helena Parish: 58.2 %St. James Parish: 58.5 %St. John the Baptist Parish: 60.8 %St. Landry Parish: 57 %St. Martin Parish: 59.4 %St. Mary Parish: 59.2 %St. Tammany Parish: 58.5 %Tangipahoa Parish: 60.8 %Tensas Parish: 53.5 %Terrebonne Parish: 60 %Union Parish: 57.5 %Vermilion Parish: 58.3 %Vernon Parish: 61.8 %Washington Parish: 57.9 %Webster Parish: 57.2 %West Baton Rouge Parish: 61.5 %West Carroll Parish: 55.3 %West Feliciana Parish: 68 %Winn Parish: 60.8 %
  • Under 57
  • 57 to 58
  • 58 to 59
  • 59 to 61
  • 61 to 62
  • 62 and over
%, 2019. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2019

West Feliciana Parish: 68 %West Feliciana Parish68Lincoln Parish: 65.7 %Lincoln Parish65.7Orleans Parish: 65.4 %Orleans Parish65.4East Carroll Parish: 64.2 %East Carroll Parish64.2Grant Parish: 63.6 %Grant Parish63.6East Feliciana Parish: 63.1 %East Feliciana Parish63.1East Baton Rouge Parish: 62.9 %East Baton Rouge Parish62.9Iberville Parish: 62 %Iberville Parish62Lafayette Parish: 62 %Lafayette Parish62Vernon Parish: 61.8 %Vernon Parish61.8Allen Parish: 61.5 %Allen Parish61.5West Baton Rouge Parish: 61.5 %West Baton Rouge Parish61.5LaSalle Parish: 61.2 %LaSalle Parish61.2Cameron Parish: 61.1 %Cameron Parish61.1St. Bernard Parish: 61 %St. Bernard Parish61St. Charles Parish: 61 %St. Charles Parish61Tangipahoa Parish: 60.8 %Tangipahoa Parish60.8Lafourche Parish: 60.8 %Lafourche Parish60.8Winn Parish: 60.8 %Winn Parish60.8St. John the Baptist Parish: 60.8 %St. John the Baptist Parish60.8Claiborne Parish: 60.8 %Claiborne Parish60.8Natchitoches Parish: 60.7 %Natchitoches Parish60.7Jefferson Parish: 60.7 %Jefferson Parish60.7Plaquemines Parish: 60.6 %Plaquemines Parish60.6Ascension Parish: 60.5 %Ascension Parish60.5Livingston Parish: 60.4 %Livingston Parish60.4Assumption Parish: 60.1 %Assumption Parish60.1Terrebonne Parish: 60 %Terrebonne Parish60Calcasieu Parish: 60 %Calcasieu Parish60Bossier Parish: 59.9 %Bossier Parish59.9Ouachita Parish: 59.8 %Ouachita Parish59.8St. Martin Parish: 59.4 %St. Martin Parish59.4Iberia Parish: 59.2 %Iberia Parish59.2St. Mary Parish: 59.2 %St. Mary Parish59.2Caldwell Parish: 59.1 %Caldwell Parish59.1Richland Parish: 59 %Richland Parish59Avoyelles Parish: 59 %Avoyelles Parish59Caddo Parish: 58.8 %Caddo Parish58.8Rapides Parish: 58.7 %Rapides Parish58.7Catahoula Parish: 58.7 %Catahoula Parish58.7West Feliciana Parish: 68 %West Feliciana Parish68Lincoln Parish: 65.7 %Lincoln Parish65.7Orleans Parish: 65.4 %Orleans Parish65.4East Carroll Parish: 64.2 %East Carroll Parish64.2Grant Parish: 63.6 %Grant Parish63.6East Feliciana Parish: 63.1 %East Feliciana Parish63.1East Baton Rouge Parish: 62.9 %East Baton Rouge Parish62.9Iberville Parish: 62 %Iberville Parish62Lafayette Parish: 62 %Lafayette Parish62Vernon Parish: 61.8 %Vernon Parish61.8Allen Parish: 61.5 %Allen Parish61.5West Baton Rouge Parish: 61.5 %West Baton Rouge Parish61.5LaSalle Parish: 61.2 %LaSalle Parish61.2Cameron Parish: 61.1 %Cameron Parish61.1St. Bernard Parish: 61 %St. Bernard Parish61St. Charles Parish: 61 %St. Charles Parish61Tangipahoa Parish: 60.8 %Tangipahoa Parish60.8Lafourche Parish: 60.8 %Lafourche Parish60.8Winn Parish: 60.8 %Winn Parish60.8St. John the Baptist Parish: 60.8 %St. John the Baptist Parish60.8Claiborne Parish: 60.8 %Claiborne Parish60.8Natchitoches Parish: 60.7 %Natchitoches Parish60.7Jefferson Parish: 60.7 %Jefferson Parish60.7Plaquemines Parish: 60.6 %Plaquemines Parish60.6Ascension Parish: 60.5 %Ascension Parish60.5Livingston Parish: 60.4 %Livingston Parish60.4Assumption Parish: 60.1 %Assumption Parish60.1Terrebonne Parish: 60 %Terrebonne Parish60Calcasieu Parish: 60 %Calcasieu Parish60Bossier Parish: 59.9 %Bossier Parish59.9Ouachita Parish: 59.8 %Ouachita Parish59.8St. Martin Parish: 59.4 %St. Martin Parish59.4Iberia Parish: 59.2 %Iberia Parish59.2St. Mary Parish: 59.2 %St. Mary Parish59.2Caldwell Parish: 59.1 %Caldwell Parish59.1Richland Parish: 59 %Richland Parish59Avoyelles Parish: 59 %Avoyelles Parish59Caddo Parish: 58.8 %Caddo Parish58.8Rapides Parish: 58.7 %Rapides Parish58.7Catahoula Parish: 58.7 %Catahoula Parish58.7
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2019 (%)Change on 2018
1West Feliciana Parish68-0.5 pts
2Lincoln Parish65.7-0.4 pts
3Orleans Parish65.4-0.5 pts
4East Carroll Parish64.2+0.6 pts
5Grant Parish63.6-0.1 pts
6East Feliciana Parish63.1-0.3 pts
7East Baton Rouge Parish62.9-0.5 pts
8Iberville Parish62-0.4 pts
9Lafayette Parish62-0.5 pts
10Vernon Parish61.8+0.2 pts
11Allen Parish61.5-0.6 pts
12West Baton Rouge Parish61.5-0.3 pts
13LaSalle Parish61.2+0.3 pts
14Cameron Parish61.1+0.2 pts
15St. Bernard Parish61-0.4 pts
16St. Charles Parish61-0.4 pts
17Tangipahoa Parish60.8-0.3 pts
18Lafourche Parish60.8-0.3 pts
19Winn Parish60.8-0.2 pts
20St. John the Baptist Parish60.8-0.3 pts
21Claiborne Parish60.8-0.4 pts
22Natchitoches Parish60.7-0.1 pts
23Jefferson Parish60.7-0.5 pts
24Plaquemines Parish60.6-0.3 pts
25Ascension Parish60.5-0.3 pts
26Livingston Parish60.4-0.2 pts
27Assumption Parish60.1-0.4 pts
28Terrebonne Parish60-0.3 pts
29Calcasieu Parish60-0.5 pts
30Bossier Parish59.9-0.5 pts
31Ouachita Parish59.8-0.2 pts
32St. Martin Parish59.4-0.4 pts
33Iberia Parish59.2-0.5 pts
34St. Mary Parish59.2-0.4 pts
35Caldwell Parish59.1-0.3 pts
36Richland Parish59-0.5 pts
37Avoyelles Parish59-0.4 pts
38Caddo Parish58.8-0.3 pts
39Rapides Parish58.7-0.3 pts
40Catahoula Parish58.7-0.4 pts
41Beauregard Parish58.7-0.3 pts
42St. James Parish58.5-0.7 pts
43St. Tammany Parish58.5-0.4 pts
44Vermilion Parish58.3-0.4 pts
45St. Helena Parish58.2-0.4 pts
46Evangeline Parish58.1-0.4 pts
47Concordia Parish58.1-0.3 pts
48De Soto Parish58-0.1 pts
49Morehouse Parish57.9-0.4 pts
50Washington Parish57.9-0.2 pts
51Madison Parish57.9-0.8 pts
52Acadia Parish57.7-0.6 pts
53Union Parish57.5-0.2 pts
54Jackson Parish57.4-0.2 pts
55Jefferson Davis Parish57.3-0.4 pts
56Pointe Coupee Parish57.2-0.4 pts
57Webster Parish57.2-0.1 pts
58St. Landry Parish57-0.3 pts
59Franklin Parish56.9-0.3 pts
60Red River Parish56.7+0.2 pts
61Bienville Parish56.5-0.4 pts
62Sabine Parish55.6-0.1 pts
63West Carroll Parish55.3-0.3 pts
64Tensas Parish53.5-0.7 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, 2019) [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, 2019. 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=2019. 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, 2019. 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=2019.

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, 2019 [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=2019 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_louisiana_by_2019,
  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, 2019}},
  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=2019. 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, 2019
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=2019
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/louisiana-counties?period=2019.
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 68% in 2019, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Tensas Parish, with 53.5% in 2019.

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