Slidell is located in Baton Rouge city, United States at the 30.2752, -89.7812 coordinates. Distance from Slidell to other cities. are listed below, click on the city name to find distance between. Distance from Slidell to New Orleans 45 km, to Shreveport 452 km, to Metairie Terrace 49 km. The green marker indicates the location of Slidell.