Flood Insurance Calculator

Estimate your flood insurance premium based on NFIP rates. Enter your coverage amounts, flood zone, and property details to see estimated costs.

Coverage Details

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NFIP max: $250,000 residential

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NFIP max: $100,000 residential

Enter your coverage details and click "Calculate" to estimate your flood insurance premium.

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Pro Tip

Even in low-risk zones, consider a Preferred Risk Policy from NFIP, which starts as low as $400-500/year for combined building and contents coverage. It is much cheaper than high-risk zone coverage and protects against an often-underestimated risk.

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Understanding Flood Insurance

Flood insurance is a separate policy from homeowners insurance that specifically covers damage caused by flooding. Standard homeowners insurance does not cover flood damage. The National Flood Insurance Program (NFIP), managed by FEMA, is the primary source of flood insurance in the United States.

If you have a federally backed mortgage and your property is in a high-risk flood zone (Zone A or V), you are required to purchase flood insurance. However, flooding can occur anywhere, and about 25% of flood claims come from properties outside high-risk zones. Even moderate and low-risk areas can flood.

NFIP residential coverage limits are $250,000 for the building and $100,000 for contents. If your home is worth more, you may need supplemental private flood insurance. Private flood insurance policies are available from some insurers and may offer higher coverage limits.

There is typically a 30-day waiting period before a new flood insurance policy takes effect, so you cannot wait until a flood is imminent to purchase coverage. Plan ahead and purchase coverage before flood season.

Premium Estimation

Premium = (Building Coverage × Zone Rate + Contents Coverage × Contents Rate) × Adjustments

Where:

Zone Rate = Per $100k rate based on flood zone (A/V zones highest)

Contents Rate = Per $100k rate for personal property

Adjustments = Deductible and building type multipliers

Example

$250,000 building + $100,000 contents in Zone X (minimal risk):

  • • Building: ($250K / $100K) x $180 = $450
  • • Contents: ($100K / $100K) x $100 = $100
  • • Subtotal: $550/year
  • • With $1,500 deductible (0.97x): $534/year = $44.50/month

Frequently Asked Questions

Do I need flood insurance?
If you have a federally backed mortgage in a high-risk flood zone (A or V), flood insurance is required. Even in low-risk zones, it is recommended since about 25% of claims come from outside high-risk areas. Just one inch of floodwater can cause over $25,000 in damage.
What flood zone is my property in?
Check FEMA's Flood Map Service Center at msc.fema.gov. Enter your address to find your flood zone designation. You can also contact your local floodplain administrator or insurance agent.
What does flood insurance cover?
Building coverage includes the structure, electrical/plumbing, HVAC, appliances, and flooring. Contents coverage includes personal belongings, clothing, furniture, and electronics. It does not cover vehicles, currency, or damage from moisture/mold that could have been prevented.
How long is the waiting period?
NFIP policies have a standard 30-day waiting period from the date of purchase before coverage begins. Exceptions exist for newly required policies at mortgage closing and for community map changes. You cannot buy flood insurance during an active flood event.
Can I get private flood insurance?
Yes, private flood insurance is increasingly available and may offer higher coverage limits, lower premiums, or broader coverage than NFIP policies. However, verify that private policies meet your mortgage lender's requirements.