Louisiana 2020 Census Total Voting-age Population (18yrs and over) By County

Updated on August 21, 2023.

According to the data from the US 2020 decennial Census, as at April 2020, the total Voting-age population (18 years and over) of Louisiana was 3,570,548, which was 76.66% of the total Louisiana population.

East Baton Rouge Parish had the highest voting-age population (355,612), followed by Jefferson Parish (344,654), and then Orleans Parish (306,196). On the other hand, the 3 counties with low voting-age population were: Tensas Parish (3,235), Cameron Parish (4,358), and Red River Parish (5,714).

You can also see this information for other states and also for the US by state.

Hover over or click on the counties to see the number and percentage of Louisiana population that lives in each county. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

You can also see the voting-age population by county for the different racial groups as well as the different ethnicities in Louisiana.

Louisiana 2020 Census Total Voting-age Population By County
Louisiana 2020 Census Total Voting-age Population By County
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County Voting-age Population % of Louisiana Pop.
Acadia 42943 1.20
Allen 17510 0.49
Ascension 91957 2.58
Assumption 16616 0.47
Avoyelles 30578 0.86
Beauregard 27489 0.77
Bienville 10073 0.28
Bossier 95876 2.69
Caddo 182407 5.11
Calcasieu 163166 4.57
Caldwell 7478 0.21
Cameron 4358 0.12
Catahoula 6951 0.20
Claiborne 11507 0.32
Concordia 14217 0.40
De Soto 20440 0.57
East Baton Rouge 355612 9.96
East Carroll 5901 0.17
East Feliciana 16183 0.45
Evangeline 24408 0.68
Franklin 15028 0.42
Grant 17527 0.49
Iberia 52791 1.48
Iberville 24086 0.68
Jackson 11783 0.33
Jefferson 344654 9.65
Jefferson Davis 24039 0.67
Lafayette 183875 5.15
Lafourche 74619 2.09
LaSalle 11563 0.32
Lincoln 38655 1.08
Livingston 105141 2.95
Madison 7435 0.21
Morehouse 20062 0.56
Natchitoches 29349 0.82
Orleans 306196 8.58
Ouachita 120200 3.37
Plaquemines 17334 0.49
Pointe Coupee 16250 0.46
Rapides 98792 2.77
Red River 5714 0.16
Richland 15383 0.43
Sabine 17064 0.48
St. Bernard 31775 0.89
St. Charles 39541 1.11
St. Helena 8463 0.24
St. James 15505 0.43
St. John the Baptist 32503 0.91
St. Landry 61811 1.73
St. Martin 39404 1.10
St. Mary 37521 1.05
St. Tammany 202228 5.66
Tangipahoa 101491 2.84
Tensas 3235 0.09
Terrebonne 82505 2.31
Union 16632 0.47
Vermilion 43012 1.21
Vernon 36261 1.02
Washington 34951 0.98
Webster 28753 0.81
West Baton Rouge 20526 0.57
West Carroll 7532 0.21
West Feliciana 12783 0.36
Winn 10906 0.31