Louisiana Population By County in 2018

Updated on December 2, 2021.

According to the US Census Bureau population estimates, there were 4,664,450 people living in Louisiana in 2018. East Baton Rouge Parish was the most populated county with 442,720 residents, followed by Jefferson Parish with 434,637 residents, and Orleans Parish with 391,506 residents. Tensas Parish with a population of 4,454 was the least populated county in Louisiana in 2018.

Use the map below to interactively explore the population of each county in Louisiana in 2018. The data can also be explored further by sorting and filtering with the table below.

Hover/Click on the counties to see the values.
Louisiana Population By County (2018)
See also Population estimate for other years:
Table of Louisiana Population By County in 2018
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County Population % of State Population
Acadia 62,315 1.34%
Allen 25,535 0.55%
Ascension 124,961 2.68%
Assumption 22,280 0.48%
Avoyelles 40,410 0.87%
Beauregard 37,491 0.80%
Bienville 13,303 0.28%
Bossier 127,153 2.73%
Caddo 243,105 5.21%
Calcasieu 203,507 4.36%
Caldwell 9,979 0.21%
Cameron 7,008 0.15%
Catahoula 9,571 0.21%
Claiborne 15,912 0.34%
Concordia 19,618 0.42%
De Soto 27,412 0.59%
East Baton Rouge 442,720 9.49%
East Carroll 6,971 0.15%
East Feliciana 19,272 0.41%
Evangeline 33,457 0.72%
Franklin 20,170 0.43%
Grant 22,430 0.48%
Iberia 70,627 1.51%
Iberville 32,719 0.70%
Jackson 15,944 0.34%
Jefferson 434,637 9.32%
Jefferson Davis 31,574 0.68%
Lafayette 243,493 5.22%
Lafourche 97,910 2.10%
LaSalle 14,900 0.32%
Lincoln 47,174 1.01%
Livingston 139,594 2.99%
Madison 11,212 0.24%
Morehouse 25,304 0.54%
Natchitoches 38,623 0.83%
Orleans 391,506 8.39%
Ouachita 154,694 3.32%
Plaquemines 23,411 0.50%
Pointe Coupee 21,856 0.47%
Rapides 130,404 2.80%
Red River 8,496 0.18%
Richland 20,215 0.43%
Sabine 23,909 0.51%
St. Bernard 46,724 1.00%
St. Charles 52,774 1.13%
St. Helena 10,174 0.22%
St. James 21,131 0.45%
St. John the Baptist 43,140 0.93%
St. Landry 82,827 1.78%
St. Martin 53,629 1.15%
St. Mary 49,739 1.07%
St. Tammany 258,598 5.54%
Tangipahoa 133,951 2.87%
Tensas 4,454 0.10%
Terrebonne 111,265 2.38%
Union 22,209 0.48%
Vermilion 59,928 1.29%
Vernon 48,679 1.04%
Washington 46,601 1.00%
Webster 38,780 0.83%
West Baton Rouge 26,451 0.57%
West Carroll 11,008 0.24%
West Feliciana 15,474 0.33%
Winn 14,132 0.30%