Flood insurance cost estimator
Pick your state, building coverage and FEMA flood zone for a rough annual flood-insurance premium. The estimate scales each state's average NFIP premium (national average $976/yr) by your coverage and a zone risk factor — it runs entirely in your browser. This is a benchmark, not a quote: real NFIP pricing under Risk Rating 2.0 is set per property, using factors this tool cannot see (distance to water, lowest-floor elevation, foundation, rebuild cost). Get a real quote from an NFIP agent or FloodSmart.gov.
Source: FEMA NFIP — Policy Information by State (compiled by NerdWallet, May 2026). Data as of June 2026.
How it works
The estimator uses a transparent, intentionally simple formula over real FEMA inputs:
estimate = state baseline premium × (coverage ÷ $250,000) × zone risk factor
The state baseline is the FEMA NFIP average premium for that state; coverage scales linearly off the $250,000 NFIP building maximum; and the zone risk factor reflects how much higher or lower premiums run in that flood zone (highest in coastal V/VE zones, lowest in Zone X). The exact factors are listed on the methodology page. Because it ignores property-specific Risk Rating 2.0 inputs, treat the output as a ballpark only.
Get an accurate price
For a real premium you need a quote based on your specific property. The official route is FloodSmart.gov or any NFIP-participating insurance agent; private flood insurers may also quote, sometimes lower. Read about Risk Rating 2.0 to understand what drives your number.
Frequently asked questions
How does the flood insurance calculator work?
It gives a rough estimate by scaling your state's average NFIP premium by your coverage amount and a flood-zone risk factor: estimate = state baseline × (coverage ÷ $250,000) × zone factor. It runs entirely in your browser. It is a benchmark, NOT a quote — real NFIP pricing under Risk Rating 2.0 is set per property.
Is this an actual flood insurance quote?
No. This is an educational estimate. FEMA's Risk Rating 2.0 prices each property individually using factors this tool cannot see — distance to water, flood type, foundation type, the elevation of your lowest floor, prior claims and your home's replacement cost. For a real number, get a quote from an NFIP-participating agent or at FloodSmart.gov.
What is the maximum NFIP coverage?
The NFIP caps building coverage for a single-family home at $250,000 and contents at $100,000. This calculator uses the $250,000 building maximum as its reference point. If you need more, private flood insurance or excess policies can offer higher limits.
Why does the flood zone change the estimate so much?
Flood zone is a strong signal of risk. High-risk coastal velocity zones (V, VE) carry the highest expected losses and the highest premiums, while moderate and minimal zones (X) are much cheaper. The zone also determines whether insurance is mandatory with a federally backed mortgage.
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Last updated: 2026-06-20