Largest Counties in Louisiana

Rank Parish Population Parish Seat Established Area (km2) Density
1 East Baton Rouge Parish 440,160 Baton Rouge 1810 1,220 360.79
2 Jefferson Parish 432,541 Gretna 1825 1,663 260.1
3 Orleans Parish 343,818 New Orleans 1807 906 379.49
4 Caddo Parish 254,958 Shreveport 1838 2,427 105.05
5 St. Tammany Parish 233,729 Covington 1810 2,911 80.29
6 Lafayette Parish 221,567 Lafayette 1823 699 316.98
7 Calcasieu Parish 192,757 Lake Charles 1840 2,833 68.04
8 Ouachita Parish 153,709 Monroe 1807 1,639 93.78
9 Rapides Parish 131,602 Alexandria 1807 3,528 37.3
10 Livingston Parish 128,015 Livingston 1832 1,821 70.3
11 Tangipahoa Parish 121,086 Amite 1869 2,132 56.79
12 Bossier Parish 116,968 Benton 1843 2,246 52.08
13 Terrebonne Parish 111,849 Houma 1822 5,387 20.76
14 Ascension Parish 107,204 Donaldsonville 1807 785 136.57
15 Lafourche Parish 96,307 Thibodaux 1807 3,812 25.26
16 St. Landry Parish 83,373 Opelousas 1807 2,432 34.28
17 Iberia Parish 73,229 New Iberia 1868 2,670 27.43
18 Acadia Parish 61,762 Crowley 1886 1,704 36.25
19 Vermilion Parish 57,988 Abbeville 1844 3,983 14.56
20 St. Mary Parish 54,639 Franklin 1811 1,585 34.47
21 St. Charles Parish 52,769 Hahnville 1807 1,062 49.69
22 Vernon Parish 52,323 Leesville 1871 3,473 15.07
23 St. Martin Parish 52,149 Saint Martinville 1807 2,116 24.65
24 Washington Parish 47,157 Franklinton 1819 1,751 26.93
25 Lincoln Parish 46,724 Ruston 1873 1,222 38.24
26 St. John the Baptist Parish 45,913 Edgard 1807 901 50.96
27 Avoyelles Parish 42,062 Marksville 1807 2,243 18.75
28 Webster Parish 41,196 Minden 1871 1,593 25.86
29 Natchitoches Parish 39,555 Natchitoches 1807 3,364 11.76
30 St. Bernard Parish 35,886 Chalmette 1807 4,646 7.72
31 Beauregard Parish 35,643 Deridder 1912 3,020 11.8
32 Evangeline Parish 33,973 Ville Platte 1910 1,761 19.29
33 Iberville Parish 33,376 Plaquemine 1807 1,691 19.74
34 Jefferson Davis Parish 31,583 Jennings 1912 1,707 18.5
35 Morehouse Parish 27,968 Bastrop 1844 2,085 13.41
36 DeSoto Parish 26,645 Mansfield 1843 2,318 11.49
37 Allen Parish 25,753 Oberlin 1912 1,984 12.98
38 Sabine Parish 24,222 Many 1843 2,621 9.24
39 West Baton Rouge Parish 23,777 Port Allen 1807 526 45.2
40 Assumption Parish 23,410 Napoleonville 1807 943 24.83
41 Plaquemines Parish 23,031 Pointe A La Hache 1807 6,291 3.66
42 Pointe Coupee Parish 22,791 New Roads 1807 1,531 14.89
43 Union Parish 22,710 Farmerville 1839 2,344 9.69
44 Grant Parish 22,298 Colfax 1869 1,720 12.96
45 St. James Parish 22,091 Convent 1807 668 33.07
46 Concordia Parish 20,811 Vidalia 1807 1,940 10.73
47 Franklin Parish 20,756 Winnsboro 1843 1,647 12.6
48 Richland Parish 20,714 Rayville 1868 1,461 14.18
49 East Feliciana Parish 20,256 Clinton 1824 1,181 17.15
50 Claiborne Parish 17,184 Homer 1828 1,989 8.64
51 Jackson Parish 16,263 Jonesboro 1845 1,502 10.83
52 West Feliciana Parish 15,614 Saint Francisville 1824 2,722 5.74
53 Winn Parish 15,302 Winnfield 1852 2,479 6.17
54 LaSalle Parish 14,879 Jena 1910 1,717 8.67
55 Bienville Parish 14,342 Arcadia 1848 2,129 6.74
56 Madison Parish 12,082 Tallulah 1838 1,686 7.17
57 West Carroll Parish 11,593 Oak Grove 1877 932 12.44
58 St. Helena Parish 11,192 Greensburg 1810 1,059 10.57
59 Catahoula Parish 10,396 Harrisonburg 1808 1,914 5.43
60 Caldwell Parish 10,121 Columbia 1838 1,401 7.22
61 Red River Parish 9,080 Coushatta 1871 1,041 8.72
62 East Carroll Parish 7,748 Lake Providence 1877 1,145 6.77
63 Cameron Parish 6,828 Cameron 1870 5,004 1.36
64 Tensas Parish 5,055 Saint Joseph 1843 1,660 3.05

Largest Counties in Louisiana

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