Ranking of Louisiana Counties By Total Voting-age Population (18yrs and over) from Census 2020
Updated on August 22, 2023.
According to the data from the US 2020 Census, as at April 2020, among all the counties in Louisiana, East Baton Rouge Parish had the highest voting-age population (18 years and over) (355.61K), followed by Jefferson Parish (344.65K), and Orleans Parish (306.20K).
The chart below shows the top 10 counties with high voting-age population, and the table below shows the ranking of all Louisiana counties based on voting-age population.
You can also see the ranking of counties by population for other states as well as for the whole United States.
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Related Topics: Louisiana Census 2020 Topic List.
Data Source: US Census Bureau, 2020 Census.
Ranking of Louisiana Counties By Total Voting-age Population from Census 2020
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| Rank | County | Voting-age Population |
|---|---|---|
| 1 | East Baton Rouge Parish | 355612 |
| 2 | Jefferson Parish | 344654 |
| 3 | Orleans Parish | 306196 |
| 4 | St. Tammany Parish | 202228 |
| 5 | Lafayette Parish | 183875 |
| 6 | Caddo Parish | 182407 |
| 7 | Calcasieu Parish | 163166 |
| 8 | Ouachita Parish | 120200 |
| 9 | Livingston Parish | 105141 |
| 10 | Tangipahoa Parish | 101491 |
| 11 | Rapides Parish | 98792 |
| 12 | Bossier Parish | 95876 |
| 13 | Ascension Parish | 91957 |
| 14 | Terrebonne Parish | 82505 |
| 15 | Lafourche Parish | 74619 |
| 16 | St. Landry Parish | 61811 |
| 17 | Iberia Parish | 52791 |
| 18 | Vermilion Parish | 43012 |
| 19 | Acadia Parish | 42943 |
| 20 | St. Charles Parish | 39541 |
| 21 | St. Martin Parish | 39404 |
| 22 | Lincoln Parish | 38655 |
| 23 | St. Mary Parish | 37521 |
| 24 | Vernon Parish | 36261 |
| 25 | Washington Parish | 34951 |
| 26 | St. John the Baptist Parish | 32503 |
| 27 | St. Bernard Parish | 31775 |
| 28 | Avoyelles Parish | 30578 |
| 29 | Natchitoches Parish | 29349 |
| 30 | Webster Parish | 28753 |
| 31 | Beauregard Parish | 27489 |
| 32 | Evangeline Parish | 24408 |
| 33 | Iberville Parish | 24086 |
| 34 | Jefferson Davis Parish | 24039 |
| 35 | West Baton Rouge Parish | 20526 |
| 36 | De Soto Parish | 20440 |
| 37 | Morehouse Parish | 20062 |
| 38 | Grant Parish | 17527 |
| 39 | Allen Parish | 17510 |
| 40 | Plaquemines Parish | 17334 |
| 41 | Sabine Parish | 17064 |
| 42 | Union Parish | 16632 |
| 43 | Assumption Parish | 16616 |
| 44 | Pointe Coupee Parish | 16250 |
| 45 | East Feliciana Parish | 16183 |
| 46 | St. James Parish | 15505 |
| 47 | Richland Parish | 15383 |
| 48 | Franklin Parish | 15028 |
| 49 | Concordia Parish | 14217 |
| 50 | West Feliciana Parish | 12783 |
| 51 | Jackson Parish | 11783 |
| 52 | LaSalle Parish | 11563 |
| 53 | Claiborne Parish | 11507 |
| 54 | Winn Parish | 10906 |
| 55 | Bienville Parish | 10073 |
| 56 | St. Helena Parish | 8463 |
| 57 | West Carroll Parish | 7532 |
| 58 | Caldwell Parish | 7478 |
| 59 | Madison Parish | 7435 |
| 60 | Catahoula Parish | 6951 |
| 61 | East Carroll Parish | 5901 |
| 62 | Red River Parish | 5714 |
| 63 | Cameron Parish | 4358 |
| 64 | Tensas Parish | 3235 |