Cities in St. Tammany Parish, Louisiana by Population (2024)

There are 14 cities in St. Tammany Parish, Louisiana.

Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)

City
Rank
2024 Pop.
2020 Pop.
Change
Density (/mi²)
Area (mi²)
Type
Slidell128,44828,694-0.22%1,86315.3City
Mandeville213,05212,8400.41%1,3959.4City
Covington311,64111,5490.2%1,4518.0City
Bogalusa410,25010,621-0.9%1,0789.5City
Eden Isle58,8468,1031.48%2,9133.0CDP
Lacombe66,7617,294-1.99%25626.4CDP
Franklinton73,5623,637-0.53%8154.4Town
Abita Springs82,7642,6301.21%6024.6Town
Pearl River92,6762,5631.06%7173.7Town
Madisonville108788480.8%3472.5Town
Folsom118257751.48%4152.0Village
Lewisburg125163557.72%1,0260.5CDP
Sun134043950.5%954.3Village
Rio143123087.96%2751.1CDP

Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.

What is the largest city in St. Tammany Parish, Louisiana?

Slidell is the largest city in St. Tammany Parish.

What is the smallest city in St. Tammany Parish, Louisiana?

Rio is the smallest city in St. Tammany Parish.

How many cities are in St. Tammany Parish?

There are 14 cities in St. Tammany Parish, Louisiana.

Frequently Asked Questions