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Parishes · Louisiana

Parishes of Louisiana

Louisiana has 64 parishes. East Baton Rouge Parish is the largest with 456,180 residents in 2025. 14 of the 64 gained residents between 2020 and 2025 by the Census Bureau's estimates.

What parishes are in Louisiana?

Sorted by the 2025 population estimate; sort by any column.

Parishes of Louisiana: 2025 estimate, change since 2020, ACS 2020-2024 5-year estimates
East Baton Rouge Parish456,180−0.1%14108$63,071$248,800
Jefferson Parish431,398−2.1%21128$65,252$251,400
Orleans Parish362,154−5.7%1184$56,631$315,700
St. Tammany Parish279,108+5.5%1159$81,202$284,000
Lafayette Parish257,949+6.7%858$67,451$242,900
Caddo Parish224,226−5.8%1274$50,705$175,700
Calcasieu Parish208,466−3.8%1256$67,564$217,000
Ouachita Parish158,542−1.1%1047$54,688$194,400
Livingston Parish155,036+9.0%934$80,122$230,600
Tangipahoa Parish141,346+6.1%931$56,760$212,900
Ascension Parish135,105+6.8%629$91,549$279,600
Bossier Parish131,867+2.5%733$69,617$227,200
Rapides Parish125,877−3.2%1239$54,967$181,100
Terrebonne Parish104,163−5.0%1035$64,836$187,200
Lafourche Parish95,505−2.1%1627$63,135$193,900
St. Landry Parish80,765−2.2%1528$44,462$142,500
Iberia Parish66,846−4.9%523$56,961$164,500
Vermilion Parish57,671+1.2%717$55,707$163,300
Acadia Parish57,032−0.9%1321$45,562$155,500
St. Martin Parish51,106−1.2%1017$55,960$164,200
St. Charles Parish50,586−3.7%1413$80,897$263,700
Lincoln Parish48,360−0.1%712$39,172$210,100
St. Mary Parish46,552−5.8%1217$52,576$138,900
St. Bernard Parish45,642+4.3%618$58,651$202,500
Vernon Parish45,091−7.5%1016$57,270$156,000
Washington Parish44,937−1.1%513$45,380$155,700
St. John the Baptist Parish39,875−6.1%611$66,630$193,200
Avoyelles Parish37,941−4.4%1212$39,325$122,400
Beauregard Parish36,673+0.3%69$65,944$161,700
Natchitoches Parish36,089−3.8%1211$46,292$171,300
Webster Parish34,948−5.5%1113$41,182$114,500
Evangeline Parish31,980−1.1%711$41,915$124,600
Jefferson Davis Parish31,471−2.5%78$57,341$150,800
Iberville Parish29,579−2.2%99$54,000$172,800
West Baton Rouge Parish28,756+5.7%46$87,299$229,900
De Soto Parish27,381+2.1%109$48,578$154,900
Morehouse Parish23,705−7.5%58$39,454$118,800
Allen Parish22,672−0.3%57$46,469$104,500
Plaquemines Parish22,256−5.5%910$86,315$282,900
Grant Parish22,075−0.4%87$64,016$143,300
Sabine Parish21,834−1.4%99$50,329$123,100
Union Parish20,561−2.6%76$42,885$112,500
Assumption Parish19,720−6.3%87$51,423$150,300
Richland Parish19,582−2.3%46$53,544$141,900
Pointe Coupee Parish19,520−6.0%57$65,961$179,300
Franklin Parish19,002−3.9%46$47,020$113,000
St. James Parish18,938−6.2%147$65,531$211,800
East Feliciana Parish18,911−3.2%55$73,085$228,100
Concordia Parish17,836−4.5%76$39,943$103,800
Jackson Parish15,834+5.3%75$44,925$115,600
LaSalle Parish15,154+2.4%73$68,497$119,500
West Feliciana Parish15,134−1.1%17$77,452$245,700
Winn Parish14,961+8.8%95$48,871$108,500
Claiborne Parish13,354−5.8%56$32,831$82,100
Bienville Parish12,269−5.5%105$35,011$99,500
St. Helena Parish10,758−1.4%23$41,934$77,300
Caldwell Parish9,344−3.1%43$47,028$93,300
West Carroll Parish9,156−6.1%53$49,134$94,400
Madison Parish8,844−11.7%45$35,456$96,200
Catahoula Parish8,223−7.7%43$50,275$101,800
Red River Parish7,165−6.0%42$49,167$119,700
East Carroll Parish6,760−9.4%13$33,341$100,500
Cameron Parish4,718−16.0%25$75,278$202,500
Tensas Parish3,700−10.8%33$36,615$86,300

Source: PEP Vintage 2025 (CO-EST2025); American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Census population estimates

How these figures are made: methodology and release checks · reading a margin of error · every state · corrections