Flood insurance is required if your property is in a FEMA-designated high-risk flood zone (A or AE) and you have a federally-backed mortgage. Even outside high-risk zones, flood insurance is strongly recommended. About 25% of flood claims come from low-risk areas. In San Antonio, flood insurance costs vary from $500/year (low risk) to $3,000+/year (high risk).
When Flood Insurance Is Required
Flood insurance is mandatory if two conditions are met: your property is in a FEMA-designated Special Flood Hazard Area (SFHA, zones A or AE), and you have a mortgage from a federally-backed lender. Most conventional loans, FHA loans, VA loans, and USDA loans are federally backed. If you pay cash or use a portfolio loan, flood insurance may not be required by the lender but is still strongly advised.
When It's Recommended
Even if your home is in Zone X (low to moderate risk), flood insurance is worth considering. About 25% of all flood insurance claims come from properties outside high-risk zones. Heavy rainfall, poor drainage, and development changes can cause flooding anywhere. The cost of a policy in Zone X is relatively low, and the protection is significant.
How Much It Costs
Flood insurance costs depend on your zone, property characteristics, and coverage amount. In Zone X (low risk), policies start around $500/year for $250K building coverage. In Zone A or AE (high risk), costs range from $1,000 to $3,000+/year. The National Flood Insurance Program (NFIP) sets standard rates, but private flood insurance may offer lower rates in some cases.
What It Covers
NFIP flood insurance covers building property (up to $250K) including foundation, electrical and plumbing systems, HVAC, appliances, built-in cabinets, and flooring. Contents coverage (up to $100K) is separate and covers personal belongings. Flood damage is NOT covered by standard homeowners insurance policies, so flood insurance is the only way to protect your home against flood damage.
What Homeowner's Insurance Doesn't Cover
Standard homeowners insurance policies explicitly exclude flood damage. If a storm causes flooding and water enters your home, your regular policy will not cover the damage. This is one of the most common and costly misconceptions in homeownership. One inch of flood water causes $25,000 in damage on average, and without flood insurance, that cost comes entirely out of your pocket.
How to Get Flood Insurance
You can purchase flood insurance through the National Flood Insurance Program (NFIP) through most insurance agents. Private flood insurance is also available and may offer lower rates or higher coverage limits. There is a 30-day waiting period before NFIP coverage takes effect, so do not wait until a storm is approaching to buy a policy.