St. Tammany Parish, Louisiana
St. Tammany Parish | |
|---|---|
St. Tammany Parish Justice Center in Covington | |
Location within the U.S. state of Louisiana | |
Louisiana's location within the U.S. | |
| Coordinates: 30°24′N 89°58′W / 30.4°N 89.96°W | |
| Country | United States |
| State | Louisiana |
| Founded | October 27, 1810 |
| Named after | Indian Chief Tamanend |
| Seat | Covington |
| Largest city | Slidell |
| Area | |
• Total | 1,124 sq mi (2,910 km2) |
| • Land | 846 sq mi (2,190 km2) |
| • Water | 279 sq mi (720 km2) 25% |
| Population (2020) | |
• Total | 264,570 |
| • Density | 312.73/sq mi (120.75/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 1st |
| Website | www |
St. Tammany Parish (French: Paroisse de Saint-Tammany; Spanish: Parroquia de St. Tammany) is a parish located in the U.S. state of Louisiana named after Tamanend, the legendary Lenape Chief of Chiefs and the "Patron Saint of America." At the 2020 census, the population was 264,570, making it the fourth-most populous parish in Louisiana. The parish seat is Covington. The parish was founded in 1810.
St. Tammany Parish comprises the Slidell–Mandeville–Covington metropolitan statistical area, which is also included in the New Orleans–Metairie–Slidell combined statistical area. St. Tammany Parish is one of the fastest-growing parishes in the state, along with Livingston and Ascension. The population has quadrupled since 1970, and is expected to double again by 2030, expecting to diversify the population of the parish. Though it was not heavily directly damaged by Hurricane Katrina, the community is growing in large part due to subsequent displacement of populations because of the shifting landscape in the larger Metropolitan area due to expanding urban footprints.