| Rank |
County |
Land Area |
| 1 |
Vernon Parish, Louisiana
|
1,327.9
|
| 2 |
Rapides Parish, Louisiana
|
1,318.0
|
| 3 |
Cameron Parish, Louisiana
|
1,284.9
|
| 4 |
Natchitoches Parish, Louisiana
|
1,252.2
|
| 5 |
Terrebonne Parish, Louisiana
|
1,231.8
|
| 6 |
Vermilion Parish, Louisiana
|
1,173.2
|
| 7 |
Beauregard Parish, Louisiana
|
1,157.3
|
| 8 |
Lafourche Parish, Louisiana
|
1,068.2
|
| 9 |
Calcasieu Parish, Louisiana
|
1,063.7
|
| 10 |
Winn Parish, Louisiana
|
950.1
|
| 11 |
St Landry Parish, Louisiana
|
923.9
|
| 12 |
Caddo Parish, Louisiana
|
878.5
|
| 13 |
Union Parish, Louisiana
|
877.0
|
| 14 |
De Soto Parish, Louisiana
|
875.6
|
| 15 |
Sabine Parish, Louisiana
|
866.7
|
| 16 |
St Tammany Parish, Louisiana
|
845.5
|
| 17 |
Bossier Parish, Louisiana
|
840.1
|
| 18 |
Avoyelles Parish, Louisiana
|
832.4
|
| 19 |
Bienville Parish, Louisiana
|
811.3
|
| 20 |
Morehouse Parish, Louisiana
|
794.9
|
| 21 |
Tangipahoa Parish, Louisiana
|
791.3
|
| 22 |
Plaquemines Parish, Louisiana
|
779.9
|
| 23 |
Allen Parish, Louisiana
|
761.9
|
| 24 |
Claiborne Parish, Louisiana
|
754.9
|
| 25 |
St Martin Parish, Louisiana
|
737.6
|
| 26 |
Catahoula Parish, Louisiana
|
708.0
|
| 27 |
Concordia Parish, Louisiana
|
696.9
|
| 28 |
Washington Parish, Louisiana
|
669.5
|
| 29 |
Evangeline Parish, Louisiana
|
662.4
|
| 30 |
Acadia Parish, Louisiana
|
655.1
|
| 31 |
Jefferson Davis Parish, Louisiana
|
651.3
|
| 32 |
Livingston Parish, Louisiana
|
648.2
|
| 33 |
Grant Parish, Louisiana
|
643.0
|
| 34 |
La Salle Parish, Louisiana
|
624.7
|
| 35 |
Franklin Parish, Louisiana
|
624.6
|
| 36 |
Madison Parish, Louisiana
|
624.4
|
| 37 |
Iberville Parish, Louisiana
|
618.6
|
| 38 |
Ouachita Parish, Louisiana
|
610.4
|
| 39 |
Tensas Parish, Louisiana
|
602.8
|
| 40 |
Webster Parish, Louisiana
|
593.0
|
| 41 |
Iberia Parish, Louisiana
|
574.1
|
| 42 |
Jackson Parish, Louisiana
|
569.2
|
| 43 |
Richland Parish, Louisiana
|
559.0
|
| 44 |
Pointe Coupee Parish, Louisiana
|
557.4
|
| 45 |
St Mary Parish, Louisiana
|
555.4
|
| 46 |
Caldwell Parish, Louisiana
|
529.4
|
| 47 |
Lincoln Parish, Louisiana
|
471.7
|
| 48 |
East Baton Rouge Parish, Louisiana
|
455.4
|
| 49 |
East Feliciana Parish, Louisiana
|
453.4
|
| 50 |
East Carroll Parish, Louisiana
|
420.7
|
| 51 |
St Helena Parish, Louisiana
|
408.4
|
| 52 |
West Feliciana Parish, Louisiana
|
403.2
|
| 53 |
Red River Parish, Louisiana
|
389.1
|
| 54 |
St Bernard Parish, Louisiana
|
377.5
|
| 55 |
West Carroll Parish, Louisiana
|
359.6
|
| 56 |
Assumption Parish, Louisiana
|
338.7
|
| 57 |
Jefferson Parish, Louisiana
|
295.6
|
| 58 |
Ascension Parish, Louisiana
|
290.0
|
| 59 |
St Charles Parish, Louisiana
|
279.1
|
| 60 |
Lafayette Parish, Louisiana
|
268.7
|
| 61 |
St James Parish, Louisiana
|
241.5
|
| 62 |
St John the Baptist Parish, Louisiana
|
213.1
|
| 63 |
West Baton Rouge Parish, Louisiana
|
192.4
|
| 64 |
Orleans Parish, Louisiana
|
169.4
|