Mandeville, Louisiana

Mandeville population, 2020 to 2024

Mandeville added 147 residents from July 2020 to July 2024, a change of +1.1%. In the latest year it moved by -22. Among 59 Louisiana places of 5,000 or more, that growth ranks 13th; the median place changed by -2.7%. The median place of 5,000+ in Louisiana has 11,686 people, so Mandeville is 1.1 times that size.

Mandeville covers 9.26 square miles of land and 0.19 of water, for 1,401 people per square mile of land. The median Louisiana place of 5,000+ has 1,568, so Mandeville is less dense than the typical town.

What county Mandeville is in

All of Mandeville's residents live in St. Tammany Parish, which had 277,615 residents in 2024. Mandeville holds 4.7% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Mandeville

2 ZIP Code Tabulation Areas (ZCTAs) overlap Mandeville by at least 10% of the ZCTA's or the city's land: 70448, 70471. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Mandeville is

The Census internal point of Mandeville is at 30.376700, -90.101100. Baton Rouge, the capital, is 64.9 miles W in a straight line. The nearest larger place is Slidell, LA (28,440 people), 19.9 miles away. The nearest city of 100,000 or more is New Orleans, LA, 24.5 miles away.

Daylight in Mandeville

At 30.38° N, Mandeville gets about 14 h 07 min of daylight around the June solstice and 10 h 11 min around the December solstice, a swing of 3 h 55 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Mandeville

The eight nearest incorporated places of 1,000+ in Louisiana, measured between internal points. The closest is Covington, 7.2 miles away, with 11,686 people.