General information, not insurance advice. This article explains flood insurance in Hawaii using published figures. It is not a quote and not advice about what coverage you should buy. Confirm your coverage with a licensed Hawaii insurance agent.
Last verified: 12 November 2026.
The short answer
You are required to have flood insurance if your property sits in a FEMA-designated Special Flood Hazard Area (SFHA) and you have a federally backed mortgage (FHA, VA, USDA, or conventional). Your lender can force-place a policy — at a price you don’t control — if you don’t buy one within 45 days of notice.
You should strongly consider it even if you’re not required to, because:
- Water is Hawaii’s most common disaster. The March 2026 Kona Low storms flooded hundreds of homes, schools, and farms — most of them outside mapped high-risk zones.
- Standard homeowners and hurricane policies do not cover rising water at all. Storm surge is flood, not wind.
- OpenFEMA data shows 61,568 NFIP policies written or renewed in Hawaii in the trailing 12 months to 31 August 2026.
- FEMA data shows about 40% of NFIP flood claims come from outside mapped high-risk zones. The map is a lending and rating tool, not a guarantee that water won’t reach you.
The June 2026 Oahu remap changed the answer for thousands of owners
FEMA’s updated Flood Insurance Rate Maps (FIRMs) for Oahu took effect 10 June 2026 — the first island-wide remap in more than a decade. The Hawaii Insurance Division’s Commissioner’s Memorandum 2026-3A (7 April 2026) states the update changed the flood-risk designation of over 3,500 parcels across Oahu. Reporting on the remap puts the number of parcels newly placed into a Special Flood Hazard Area at roughly 3,492–3,700, with zones redrawn along nearly 100 miles of streams.
What that means in practice:
- If your parcel was newly mapped into an SFHA and you have a federally backed mortgage, your lender can now require flood insurance.
- If you don’t buy within 45 days of the lender’s notice, the lender can force-place a policy — you pay the premium and have no say in the price or coverage.
- Newly Mapped discount: policies bought within 12 months of the map change can qualify for a discount worth 70% off the first $35,000 of building coverage and $10,000 of contents, phasing out over time (FEMA’s consumer guidance says 12 months; the regulation, 44 CFR §61.11, allows 13 months).
- If you think the map is wrong, FEMA has a Letter of Map Amendment (LOMA) / Letter of Map Revision (LOMR) process. The current map stays in effect while your request is reviewed.
- Check your parcel on the City and County of Honolulu’s flood map viewer or the FEMA Flood Map Service Center — not on an old listing or what a previous owner told you.
What flood insurance covers — and what it doesn’t
| Covered | Not covered |
|---|---|
| Rising water from storm surge, heavy rain, tsunami | Wind damage (that’s the hurricane policy) |
| Water entering through the ground floor | Sewer backup (needs an endorsement) |
| Damage to the structure and contents (up to NFIP limits) | Damage below the lowest elevated floor in some cases |
| Mudflow | Earth movement / landslides |
NFIP limits: $250,000 for the dwelling, $100,000 for contents. If your home’s rebuild value is higher, you need excess/private flood coverage on top.
Waiting period: NFIP policies take 30 days to take effect (with narrow exceptions, e.g. a loan closing). Buy before storm season, not during it.
What it costs
Under FEMA’s Risk Rating 2.0, premiums are set per property — elevation relative to base flood elevation, distance to water, replacement cost — not by zone alone. Anchored figures from OpenFEMA NFIP Policies data (snapshot 3 August 2026, trailing 12 months to 31 August 2026):
- Hawaii average NFIP premium: $806/year (national average: about $955, per FludZone’s policy-weighted national figure — its Hawaii page cites $915, which conflicts with its own national page).
- By zone in Hawaii: AE $691, X $815, AO $633, VE $1,428, AH $1,466, A $831, D $1,782.
These averages are risk-rated premium only — they exclude the Federal Policy Fee, HFIAA surcharge and Reserve Fund Assessment, so actual bills run higher (FludZone analysis of OpenFEMA data, snapshot 3 August 2026).
Other published averages differ — Living in Hawaii’s guide cites about $1,023 and 1-800-Insurance cites $655 for Honolulu NFIP policies — so use $650–$1,400 a year as the planning range for a home in a flood zone. Annual increases for primary homes are capped at 18% per year until the policy reaches its full-risk rate.
Discounts that help:
- Honolulu CRS discount: the City and County of Honolulu participates in FEMA’s Community Rating System, giving NFIP policyholders an automatic 10% discount.
- Hawaii County (Big Island) is CRS Class 7, worth up to a 15% discount on NFIP premiums in the SFHA (FEMA CRS, April 2026).
- Newly Mapped discount (above) for parcels remapped in June 2026.
The NFIP authorization wrinkle
The NFIP is a federal program that Congress must periodically reauthorize. It was extended to 11 December 2026 by H.R. 6500 (signed 2 September 2026). A 43-day federal government shutdown (1 October – 12 November 2025) had earlier lapsed NFIP authority, halting new sales and renewals. If you are buying a home, confirm the NFIP’s current authorization status with your agent — a lapse can delay closings.
Private flood insurance is the alternative: it can offer higher limits than the NFIP’s $250,000 cap, sometimes at a lower price for low-risk homes, and it is not subject to NFIP authorization lapses. Get quotes for both.
Who should buy it even without a lender requirement
- Any coastal or low-elevation property, even in Zone X (the “low-risk” zone — Zone X policies in Hawaii still average $815/year, which tells you something about the actual risk).
- Homes near streams or drainage channels — the June 2026 remap redrew zones along nearly 100 miles of Oahu streams.
- Renters: a flood policy covers your contents. Your landlord’s policy does not cover your belongings. Renters flood coverage is available through the NFIP.
- Condo owners: the building’s master policy may not cover your unit’s contents or improvements against flood. Check what the AOAO master policy actually includes.
How to decide in 10 minutes
- Look up your parcel on the Honolulu DPP flood map viewer or FEMA’s Flood Map Service Center.
- Note the zone (AE, VE, X, etc.) and the base flood elevation.
- Get an NFIP quote and a private flood quote for the same coverage.
- Compare the annual premium against your deductible and the 30-day waiting period.
- If your home is in an SFHA, remember the requirement is not optional — the lender will enforce it.
FAQ
Does homeowners insurance cover flooding?
No. Standard homeowners and hurricane policies exclude flood everywhere in the US. In Hawaii, flood is a third, separate policy.
Does hurricane insurance cover storm surge?
No. Storm surge is rising water — flood insurance. Hurricane insurance covers wind damage only.
I live on a hill / in Zone X. Do I need flood insurance?
No lender will require it, but Zone X does not mean “no flood risk” — it means lower mapped risk. Heavy rain, drainage failure, and tsunami inundation can reach Zone X properties. NFIP Zone X policies in Hawaii average $815/year, which reflects real claims experience.
How long before flood insurance takes effect?
30 days for a standard NFIP policy. If you’re closing on a home, the policy can be timed to the closing date.
What if my property was remapped in June 2026?
Check the new map, get a quote, and buy within 12 months of the map change to qualify for the Newly Mapped discount (FEMA’s consumer guidance says 12 months; the regulation, 44 CFR §61.11, allows 13 months). If you have a federally backed mortgage, watch for a lender notice — you have 45 days from it before force-placement.
Sources
- Hawaii DCCA, Commissioner’s Memorandum 2026-3A: Updated Flood Insurance Rate Maps (7 April 2026). https://cca.hawaii.gov/ins/commissioners-memorandum-2026-3a-updated-flood-insurance-rate-maps/
- OpenFEMA NFIP Policies data, snapshot 3 August 2026 (via FloodZone Hawaii page, updated August 2026). https://www.fludzone.com/flood-zones/hawaii
- Living in Hawaii, “LIH Guide 14: Hawaii Insurance” (October 2026 PDF).
- 1-800-Insurance, “Insurance in Honolulu, Hawaii: Complete 2026 Guide.” https://www.1800insurance.com/guides/insurance-in-honolulu-hawaii
- MoneyGeek, “Flood Insurance Coverage by State” (2026). https://www.moneygeek.com/insurance/homeowners/flood-insurance-coverage-by-state/
- Insurify, “Flood Insurance Costs Could Soar 64% Without Government-Backed NFIP” (2026). https://insurify.com/homeowners-insurance/insights/flood-insurance-cost-without-nfip/
- FEMA Community Rating System (April 2026); FEMA Flood Map Service Center.
Prices are published figures as of the dates cited, not quotes. Verify current rates and your parcel’s flood zone with a licensed agent.