Louisiana Counties by Population

The most populated counties in Louisiana are East Baton Rouge Parish with 448,467, Jefferson Parish at 421,777, Orleans Parish with 364,136, St. Tammany Parish at 275,583, and Lafayette Parish with 249,750. You can get the most current Census population data for all 64 Louisiana counties, sorted from the most populous counties in Louisiana to the least, according to the 2023 Population Estimates Program.

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Rank County Population
1 East Baton Rouge Parish 448,467
2 Jefferson Parish 421,777
3 Orleans Parish 364,136
4 St. Tammany Parish 275,583
5 Lafayette Parish 249,750
6 Caddo Parish 226,386
7 Calcasieu Parish 203,761
8 Ouachita Parish 157,568
9 Livingston Parish 150,145
10 Tangipahoa Parish 138,064
11 Ascension Parish 131,632
12 Bossier Parish 129,795
13 Rapides Parish 126,260
14 Terrebonne Parish 103,616
15 Lafourche Parish 95,056
16 St. Landry Parish 81,464
17 Iberia Parish 67,659
18 Vermilion Parish 56,992
19 Acadia Parish 56,489
20 St. Martin Parish 51,057
21 St. Charles Parish 50,620
22 Lincoln Parish 47,962
23 St. Mary Parish 47,055
24 Vernon Parish 46,250
25 Washington Parish 44,865
26 St. Bernard Parish 44,463
27 St. John the Baptist Parish 39,592
28 Avoyelles Parish 38,408
29 Beauregard Parish 36,827
30 Natchitoches Parish 36,291
31 Webster Parish 35,238
32 Evangeline Parish 31,754
33 Jefferson Davis Parish 31,553
34 Iberville Parish 29,617
35 West Baton Rouge Parish 28,266
36 De Soto Parish 27,114
37 Morehouse Parish 23,955
38 Plaquemines Parish 22,386
39 Allen Parish 22,112
40 Grant Parish 21,911
41 Sabine Parish 21,906
42 Union Parish 20,650
43 Assumption Parish 20,160
44 Pointe Coupee Parish 20,000
45 Richland Parish 19,712
46 Franklin Parish 19,285
47 East Feliciana Parish 19,229
48 St. James Parish 19,191
49 Concordia Parish 17,688
50 West Feliciana Parish 15,371
51 LaSalle Parish 14,800
52 Jackson Parish 14,746
53 Claiborne Parish 13,670
54 Winn Parish 13,216
55 Bienville Parish 12,366
56 St. Helena Parish 10,774
57 Caldwell Parish 9,389
58 West Carroll Parish 9,323
59 Madison Parish 9,246
60 Catahoula Parish 8,414
61 Red River Parish 7,356
62 East Carroll Parish 6,829
63 Cameron Parish 4,768
64 Tensas Parish 3,764

United States Census Bureau. Annual Estimates of the Resident Population: April 1, 2020 to July 1, 2023. U.S. Census Bureau, Population Division. Web. May 2024. http://www.census.gov/.

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