Natural Disaster Risk — ZIP Code 78218

Natural Hazard Profile: ZIP 78218, Texas

ZIP 78218 in San Antonio sits along the Gulf Coast. Its diverse climate produces an exceptionally varied climate from humid subtropical in the east to desert in the west, and notably overlapping tornado, hurricane, flood, and drought seasons. These conditions define the natural disaster environment for households across this ZIP code.

According to FEMA's National Risk Index, ZIP 78218 carries an overall risk score of 8.0/10, placing it in the very high category. Large hail is the dominant natural hazard, with supercell thunderstorms regularly producing damaging hailstones capable of destroying crops, vehicles, and roofs. The area also faces notable exposure to tornado and heat.

Within Texas, ZIP 78218's risk is, considerably above the 5.6/10 state average. Nationally, it ranks well above the U.S. national average of 4.5/10. FEMA's analysis of Texas identifies hail as the foremost hazard, followed by tornado and heat. These rankings reflect the relative frequency and severity of each hazard type in the local environment.

Given ZIP 78218's very high risk classification, residents should treat disaster preparedness as a year-round priority. This means maintaining updated homeowners and flood insurance, building a 72-hour emergency kit, knowing the evacuation routes for the primary hazards, and signing up for local emergency alert systems.