St. Tammany Parish on the north shore of Lake Pontchartrain is one of Louisiana's fastest-growing parishes and faces serious hurricane risk. Ida caused widespread tree damage and power outages across the parish in 2021. The parish's location north of the lake means it receives storm surge from the north as hurricanes push lake water toward the Mandeville and Slidell shoreline.
// Risk Intelligence
| Threat Score | 8 / 10 High Risk |
| Primary Hazard | Hurricane / Flooding |
| Secondary Hazard | Tornado |
| FEMA Flood Zone | Zone AE (High Risk) |
| Federally Declared Disasters | 58 |
| Last Major Event | Hurricane Ida (2021) |
| Event Frequency | Major event every 3–4 years |
// Emergency Operations
| Emergency Mgmt Phone | (985) 898-2353 |
| Emergency Shelters | 24 designated facilities |
| Evacuation Routes | I-12 West, I-59 North, US-190 West, US-11 North |
// Recommended Preparedness Gear
Based on St. Tammany Parish LA's primary hazard profile (Hurricane / Flooding), the following gear is recommended for a High risk area.
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// County Profile
| County | St. Tammany Parish LA |
| State | Louisiana (LA) |
| Population | 260419 |
| Area | 1124 sq miles |
| FEMA Region | Zone AE (High Risk) |
// Other Louisiana Counties
East Baton Rouge Parish LA
Flooding / Hurricane
7/10
High
Terrebonne Parish LA
Hurricane / Storm Surge
9/10
Critical
Jefferson Parish LA
Hurricane / Storm Surge
9/10
Critical
Livingston Parish LA
Flooding / Hurricane
8/10
High
Orleans Parish LA
Hurricane / Storm Surge
10/10
Critical
Lafourche Parish LA
Hurricane / Storm Surge
9/10
Critical