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List of Cities and Counties in Louisiana

Discover Louisiana population facts easily with our list of counties and cities. Find out how many people live in each area, from big cities to small towns, and see how Louisiana’s population is spread out across the state.

Louisiana Parish by Population

A parish is an administrative subdivision of the US state of Louisiana. As of 2022, the state of Louisiana is divided into 64 parishes, which are analogous to counties in other states. 

The most populous Parish in Louisiana is East Baton Rouge Parish (1.26 million), and Tensas Parish is the least populated Parish. The Largest Parish by Land Area in Louisiana is Plaquemines Parish and the smallest in the area is West Baton Rouge Parish.

read about the Population of Louisiana

#ParishPopulation 2021Area (sq. miles)
1East Baton Rouge Parish453,301471
2Jefferson Parish433,688642
3Orleans Parish376,971350
4St. Tammany Parish269,3881,124
5Lafayette Parish244,205270
6Caddo Parish233,092937
7Calcasieu Parish205,2821,094
8Ouachita Parish158,768633
9Livingston Parish145,830703
10Tangipahoa Parish135,217823
11Bossier Parish129,144867
12Rapides Parish128,6541,362
13Ascension Parish128,369303
14Terrebonne Parish108,7082,080
15Lafourche Parish97,5041,472
16St. Landry Parish82,071939
17Iberia Parish68,9751,031
18Acadia Parish57,288658
19Vermilion Parish57,2041,538
20St. Charles Parish52,282410
21St. Martin Parish51,540817
22St. Mary Parish48,232612
23Lincoln Parish48,152472
24Vernon Parish48,0271,341
25Washington Parish45,133676
26St. Bernard Parish44,2581,794
27St. John the Baptist Parish42,094348
28Avoyelles Parish39,236866
29Natchitoches Parish37,0261,299
30Beauregard Parish36,5841,166
31Webster Parish36,184615
32Jefferson Davis Parish32,345659
33Evangeline Parish32,215680
34Iberville Parish29,824653
35West Baton Rouge Parish27,792203
36DeSoto Parish26,919895
37Morehouse Parish25,025805
38Plaquemines Parish23,3032,429
39Allen Parish22,687766
40Grant Parish22,236664
41Sabine Parish22,1351,012
42Union Parish21,091905
43Assumption Parish20,689364
44Pointe Coupee Parish20,356591
45Richland Parish19,805564
46St. James Parish19,742258
47Franklin Parish19,668636
48East Feliciana Parish19,338456
49Concordia Parish18,376749
50West Feliciana Parish15,494426
51Jackson Parish14,876580
52LaSalle Parish14,834663
53Claiborne Parish14,038768
54Winn Parish13,488957
55Bienville Parish12,776822
56St. Helena Parish10,912409
57Madison Parish9,799651
58West Carroll Parish9,594360
59Caldwell Parish9,571541
60Catahoula Parish8,805739
61Red River Parish7,564402
62East Carroll Parish7,220442
63Cameron Parish5,0801,932
64Tensas Parish4,043641

read about the race and ethnicity in Louisiana

Top Cities in Louisiana by population

Louisiana is divided into 64 parishes, which are equivalent to counties, and contains 304 municipalities consisting of four consolidated city parishes, and 304 cities, towns, and villages. New Orleans is the largest city in the state followed by Baton Rouge and Shreveport. 

Let’s have a look at the top cities in Louisiana by population

#CityCountiesPopulation 2020Area (sq. mi.)
1New OrleansOrleans383,997169.42
2Baton RougeEast Baton Rouge227,47076.95
3ShreveportBossier, Caddo187,593105.38
4LafayetteLafayette121,37449.23
5Lake CharlesCalcasieu84,87242.06
6KennerJefferson66,44814.87
7Bossier CityBossier62,70142.34
8MonroeOuachita47,70229.21
9AlexandriaRapides46,18028.41
10Houma[b]Terrebonne33,40614.42
11CentralEast Baton Rouge29,56562.24
12SlidellSt. Tammany28,78114.84
13New IberiaIberia28,55511.14
14RustonLincoln22,16620.85
15SulphurCalcasieu21,8099.99
16HammondTangipahoa19,58414.01
17ZacharyEast Baton Rouge19,31623.93
18NatchitochesNatchitoches18,03922.63
19GretnaJefferson17,8144.04
20ThibodauxLafourche15,9486.03

Source: US Census  2020

Most Populous Counties/Parish in Louisiana

The most populous Parish in Louisiana is  East Baton Rouge Parish with 0.45 million residents. It was followed by Jefferson Parish (0.43 million) and Orleans Parish(0.37 million)

Let’s have a look at the Top 10 most populous Parish

#ParishPopulation 2021
1East Baton Rouge Parish453,301
2Jefferson Parish433,688
3Orleans Parish376,971
4St. Tammany Parish269,388
5Lafayette Parish244,205
6Caddo Parish233,092
7Calcasieu Parish205,282
8Ouachita Parish158,768
9Livingston Parish145,830
10Tangipahoa Parish135,217
Least Populated Louisiana Parish

The least populous Parish is Tensas County with 4,043 residents, it’s followed by Cameron  Parish and East Carroll Parish.

Let’s have a look at 5 least populated counties in Louisiana

#ParishPopulation 2021
1Tensas Parish4,043
2Cameron Parish5,080
3East Carroll Parish7,220
4Red River Parish7,564
5Catahoula Parish8,805

read about religion in Louisiana

Largest Parish in Louisiana by area

The Largest Parish by Land Area in Louisiana is Plaquemines Parish with an area of 2429 sq. miles. Terrebonne with an area of 2080 sq. mi. comes next followed by Cameron Parish (1932 sq. mi.)

Let’s have a look at the Top 10 counties by Area

#ParishArea (sq. miles)
1Plaquemines Parish2,429
2Terrebonne Parish2,080
3Cameron Parish1,932
4St. Bernard Parish1,794
5Vermilion Parish1,538
6Lafourche Parish1,472
7Rapides Parish1,362
8Vernon Parish1,341
9Natchitoches Parish1,299
10Beauregard Parish1,166
Smallest Parish in Louisiana by area

The smallest Parish by area in Louisiana is West Baton Rouge with an area of 203 square miles.

#ParishArea (sq. miles)
1West Baton Rouge Parish203
2St. James Parish258
3Lafayette Parish270
4Ascension Parish303
5St. John the Baptist Parish348

source: US Census report 2021

Most Densely populated Parish in Louisiana

The most densely populated Parish in Louisiana is Orleans Parish, with 1,077  people per sq. mi. Next comes East Baton Rouge Parish with 962  people per sq. mi followed by Lafayette Parish (904/ sq.mi).

Let’s have a look at the Top 10 densely populated Parish

#ParishDensity ( people/sq. mi.)
1Orleans Parish1,077.06
2East Baton Rouge Parish962.42
3Lafayette Parish904.46
4Jefferson Parish675.53
5Ascension Parish423.66
6Ouachita Parish250.82
7Caddo Parish248.76
8St. Tammany Parish239.67
9Livingston Parish207.44
10Calcasieu Parish187.64
Least Densely Populated Parish in Louisiana

Cameron Parish with a population density of just 2.63 people per sq. miles is the least densely populated Parish in Louisiana.

#ParishDensity ( people/sq. mi.)
1Cameron Parish2.63
2Tensas Parish6.31
3Plaquemines Parish9.59
4Catahoula Parish11.91
5Winn Parish14.09

Sources

Religion in United States
Race and Ethnicity in US
US State by Population
List of Counties in Louisiana 2024 | Top Cities in Louisiana by population

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