Louisiana Parishes by Population (2026)

2026 Pop.

50K

100K

150K

200K

250K

300K

350K

400K

450K

Top 5 Most Populous Parishes

64 Parishes

Parish
2026 Pop. ↓
Area (mi²)
Density
Change (2020)
East Baton Rouge Parish457,1804561,0030.28%
Jefferson Parish430,4453011,430-2.12%
Orleans Parish357,7691702,105-6.68%
St. Tammany Parish281,2438453336.13%
Lafayette Parish261,7512699738.08%
Caddo Parish221,759879252-6.4%
Calcasieu Parish211,6351.1K199-2.24%
Ouachita Parish158,198610259-1.2%
Livingston Parish157,51864824310.27%
Tangipahoa Parish143,4717911817.35%
Ascension Parish136,6942904717.65%
Bossier Parish132,5468401582.94%
Rapides Parish124,7911.3K94-3.75%
Terrebonne Parish103,5201.2K84-5.39%
Lafourche Parish95,7341.1K90-1.76%
St. Landry Parish79,94992487-2.87%
Iberia Parish67,216575117-4.06%
Vermilion Parish58,5611.2K502.82%
Acadia Parish56,51465586-1.68%
St. Martin Parish51,41073770-0.4%
St. Charles Parish50,106278180-4.59%
Lincoln Parish48,4634721030.33%
St. Mary Parish46,13555983-6.14%
Washington Parish45,368670680.03%
St. Bernard Parish45,0593781192.74%
Vernon Parish44,9631.3K34-7.53%
St. John the Baptist Parish39,852214186-5.92%
Avoyelles Parish38,07983246-3.94%
Beauregard Parish36,4611.2K32-0.4%
Natchitoches Parish35,1641.3K28-5.96%
Webster Parish34,66459358-6.03%
Evangeline Parish31,34566247-2.96%
Jefferson Davis Parish31,06865248-3.55%
Iberville Parish29,71061948-1.2%
West Baton Rouge Parish28,5991921494.9%
De Soto Parish27,500876312.42%
Morehouse Parish23,25179529-8.68%
Allen Parish22,895762300.91%
Grant Parish22,469644351.43%
Plaquemines Parish22,15578128-5.55%
Sabine Parish21,36686725-3.36%
Union Parish20,47987723-2.94%
Assumption Parish19,70434457-6.01%
Pointe Coupee Parish19,54555735-5.46%
Richland Parish19,44155635-2.94%
St. James Parish18,89423879-6.09%
East Feliciana Parish18,82045342-3.2%
Franklin Parish18,79162430-4.68%
Concordia Parish17,37369725-6.45%
West Feliciana Parish14,81140337-2.96%
Jackson Parish14,65756926-2.26%
LaSalle Parish14,57862523-1.69%
Winn Parish13,39195014-2.38%
Claiborne Parish13,32575518-5.55%
Bienville Parish12,35681115-4.35%
St. Helena Parish10,941409270.38%
Caldwell Parish9,37553018-2.51%
West Carroll Parish9,14836025-5.62%
Madison Parish8,74362414-11.85%
Catahoula Parish7,96470811-9.98%
Red River Parish6,92438918-8.71%
East Carroll Parish6,91842116-6.44%
Cameron Parish4,4881.3K3-20.2%
Tensas Parish3,8366036-6.62%

Overview of Louisiana Parishes

There are 64 parishes in Louisiana.

East Baton Rouge Parish is the largest parish in the state, with a population of 457,180. The most recent census shows that its population has increased by 0.00% since the previous census.

A number of other Louisiana parishes also boast relatively large populations for their state, though not able to match the density of East Baton Rouge Parish:

Louisiana Parishes with the Fewest Residents

The smallest parish in Louisiana is Tensas Parish , with a population of just 3,836. This total represents a decrease of 0.1% since the last census count was performed.

Other small parishes include:

Louisiana Parishes with Rapid Growth

Livingston Parish , with its sizeable population of 157,518, has shown the largest population growth, with an increase of 0.1% since the last census.

On the other hand, Cameron Parish has had the largest decrease in population, with its 4,488 current residents totalling 0.2% less than the previous census.

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)

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