Flood Insurance Industry Statistics 2026: NFIP and Coverage Data

Flood insurance in the United States runs through one federal-dominated market under structural pressure. The National Flood Insurance Program holds over 4.5 million flood insurance policies as of December 31, 2025, providing over $1.3 trillion in coverage. The federal program collects about $4.6 billion in annual revenue from policyholders’ premiums, fees, and surcharges, yet sits $22.525 billion in debt to the U.S. Treasury after borrowing an additional $2 billion in February 2025.

That paradox, the largest flood insurer in the country running at a structural shortfall, frames every data point that follows. The figures below trace the National Flood Insurance Program, the private flood market that has emerged alongside it, the loss events that drive both, and the coverage gap that persists despite trillions in measured exposure.

Key Takeaways

• The NFIP carries over 4.5 million policies and $1.3 trillion in coverage per CRS as of year-end 2025, the dominant US flood insurer by policy count.
• FEMA’s Risk Rating 2.0 raised the median NFIP premium to $689 by December 2022, with full-risk pricing requiring $1,288, an 87% gap that statutory caps have slowly walked over a decade.
• About one-third of NFIP policyholders already pay full-risk premiums under Risk Rating 2.0, while 9% face eventual increases exceeding 300%.
• Cumulative NFIP borrowing reached $36.5 billion from the U.S. Treasury since 2005, per GAO, before Congress cancelled $16 billion in October 2017.
• Private flood insurers wrote $729.954 million in net premiums in 2024, a 9.1% drop from 2023, paired with a deteriorating 83.1 combined ratio.
• Hurricane Katrina remains the largest NFIP payout event on record at 168,200 paid losses and $27,007 million in 2025 terms.
• Cotality counts 6,619,562 US homes at moderate or greater storm surge risk across the Gulf and Atlantic states, representing $2,187.4 billion in reconstruction cost value.

Editor’s Choice

• The NFIP collected $4.09 billion in written premiums, fees, and surcharges on approximately 4.58 million policies in force in FY2024.
• Hurricane Helene posted 57,800 paid losses and $5,978 million in 2025-adjusted payouts, entering the top NFIP rankings at #4 in September 2024.
• The NFIP owes the Treasury $22.525 billion, with $7.9 billion remaining borrowing authority from a $30.425 billion statutory limit.
• AXA leads US private flood insurers with $159.792 million in 2024 direct premiums written and 13.0% market share.
• Over 22,000 communities in 56 US states and jurisdictions participate in the NFIP.
• The NFIP’s floodplain management standards save the nation almost $2.4 billion annually in flood losses avoided, per FEMA.
• New York metro carries 878,226 homes at storm surge risk with $415.4 billion in reconstruction cost value, the largest single-metro storm surge exposure.

Recent Developments

• February 2025: NFIP borrowed an additional $2 billion from the U.S. Treasury, raising outstanding debt to $22.525 billion.
• January 2026: Triple-I and Aon updated the top-10 NFIP payout rankings, adding Hurricane Helene at #4 with 57,800 paid losses.
• September 2026 (2026-09-30): Key NFIP authorities, including the authority to issue new insurance contracts, expire absent reauthorization by Congress.
• 2024 full year: Private flood insurers reported net premiums of $729.954 million (down 9.1%) and a combined ratio of 83.1 (up from 33.9 in 2023).
• 2025: Cotality and CoreLogic count 33,108,821 homes worth $11,675.9 billion in reconstruction cost value at hurricane wind risk across the Gulf and Atlantic states, a refreshed coastal exposure read.

NFIP Policies in Force and Coverage

• The NFIP held over 4.5 million flood insurance policies as of December 31, 2025, the federal government’s primary line of defense against flood losses.
• Coverage in force totaled over $1.3 trillion in protected property value at year-end 2025.
• FY2024 saw approximately 4.58 million policies in force, generating $4.09 billion in written premiums, fees, and surcharges.
• The program collects about $4.6 billion in annual revenue from policyholders’ premiums, fees, and surcharges.
• Standard homeowners and renters policies exclude flood damage, requiring a separate NFIP policy or private-market product for homeowners seeking flood coverage.

Source: Congressional Research Service R44593, FEMA NFIP

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How many people have flood insurance in the US?

The National Flood Insurance Program covers over 4.5 million policies as of December 31, 2025, the dominant share of US flood coverage. Private insurers added $729.954 million in net premiums in 2024, primarily concentrated in commercial and high-value residential properties. Together, the public and private markets reach over 5 million US flood policies, leaving the bulk of US households uninsured against flooding.

NFIP Premium Revenue and Funding

• Premium revenue and assessments produced $4.09 billion on approximately 4.58 million policies in FY2024, the program’s primary funding source.
• Annual revenue across NFIP premiums, fees, and surcharges reached about $4.6 billion as of late 2025.
• The NFIP layers a Federal Policy Fee, a Reserve Fund assessment, and a surcharge on top of base premiums to cover administrative costs and reserve building.
• The funding mix matters because Congress has been unwilling to appropriate general revenue toward flood losses; NFIP’s solvency therefore rests on premiums alone, a structural constraint that the Risk Rating 2.0 rollout is attempting to address.

Source: Congressional Research Service R44593

Top NFIP Flood Payout Events Since 1978

• Hurricane Katrina (August 2005) generated 168,200 paid losses and $27,007 million in 2025-adjusted payouts, the largest NFIP event ever recorded.
• Superstorm Sandy (October 2012) produced 132,800 paid losses and $12,591 million in 2025 terms.
• Hurricane Harvey (September 2017) generated 77,100 paid losses and $11,926 million in 2025-adjusted payouts.
• Hurricane Helene (September 2024) added 57,800 paid losses and $5,978 million in 2025-adjusted payouts, entering the top-10 rankings at #4.
• Hurricane Ian (September 2022) caused 48,000 paid losses and $4,300 million in nominal payouts.

By the numbers: Aon’s analysis of FEMA NFIP data through January 2026 shows the top 10 historic flood events produced 664,100 combined paid losses. Hurricane Katrina alone accounts for roughly 35% of cumulative top-10 payout dollars in 2025 terms, underlining how a single 2005 event still anchors the program’s loss history.

Source: FEMA NFIP data via Aon, Insurance Information Institute (January 2026)

What was the worst flood event by insurance payouts?

Hurricane Katrina in August 2005 remains the largest NFIP-paid event with 168,200 paid losses and $27,007 million in 2025-adjusted payouts. The event’s average paid loss of $160,565 in 2025 terms also ranks first among the top-10 events, reflecting the scale of structural damage along the Gulf Coast and the breadth of insured property destroyed.

Risk Rating 2.0 Premium Dynamics

• FEMA began implementing Risk Rating 2.0 in October 2021 as a new methodology for setting NFIP premiums aligned with individual flood risk.
• By December 2022, the median annual NFIP premium was $689, but it will need to increase to $1,288 to reach full risk.
• About one-third of NFIP policyholders already pay full-risk premiums under Risk Rating 2.0.
• 9% of policyholders will eventually require premium increases of more than 300% to reach full-risk pricing.
• Annual premium increases are limited to 18% by statute for most policyholders, capping the pace of transition.
• Gulf Coast states are among those experiencing the largest premium increases under Risk Rating 2.0.

Source: U.S. Government Accountability Office GAO-23-105977; FEMA

What is Risk Rating 2.0?

Risk Rating 2.0 is FEMA’s revised methodology for NFIP premiums, launched in October 2021 to align premium rates with the flood risk of individual properties. The shift replaces a flat-rate-by-zone approach with property-specific risk factors, raising premiums for under-priced properties and lowering them for over-priced ones. 9% of policyholders eventually face increases above 300%, but a statutory 18% annual cap stretches the transition over years.

NFIP Treasury Debt and Solvency

• The NFIP currently owes $22.525 billion to the U.S. Treasury, with $7.9 billion in remaining borrowing authority from a $30.425 billion statutory limit.
• Cumulative NFIP borrowing has reached $36.5 billion from the Treasury since 2005.
• In October 2017, Congress cancelled $16 billion of NFIP debt to enable claim payments for Hurricanes Harvey, Irma, and Maria.
• GAO projects it would take until 2037 for 95% of current NFIP policies to reach full-risk premiums, resulting in a $27 billion premium shortfall.
• Servicing NFIP debt over 30 years at 2.5% interest would require an annual payment of about $1.9 billion, equivalent to a 60% surcharge for each policyholder in the first year.
• Since the end of FY2017, 35 short-term NFIP reauthorizations have been enacted, while Congress has not produced a long-term reauthorization since 2012.

The takeaway: GAO’s $27 billion premium shortfall projection through 2037 reflects a deliberate trade-off, the 18% annual cap shields current policyholders from sticker shock but stretches NFIP’s actuarial transition by more than a decade. The longer the transition, the longer the federal government carries the implicit subsidy on its books and the more pressure builds for a long-term reauthorization that finally pairs affordability assistance with full-risk pricing.

Why is NFIP in debt to the Treasury?

The NFIP went deeply into debt because a historical focus on affordability led to premiums that did not fully reflect flood risk, insufficient revenue to pay claims, and $36.5 billion in borrowing from the Treasury since 2005. Catastrophic events (Hurricane Katrina, Superstorm Sandy, Hurricane Harvey) produced claim totals far above the premium reserves. Congress cancelled $16 billion of debt in October 2017 to enable Harvey claim payments, but the program still owes $22.525 billion.

Private Flood Insurance Market

• Private flood insurers wrote $729.954 million in net premiums in 2024, a 9.1% drop from 2023’s $803.069 million.
• The 2024 combined ratio rose to 83.1, up from 33.9 in 2023, a deterioration of nearly 50 points after three years of underwriting improvement.
• 2022 set the prior peak at $774.279 million in net premiums and a 71.1 combined ratio.
• The market grew sharply in 2021, with net premiums up 73.3% to $524.211 million that year.
• The 2024 combined-ratio jump back into the 80s signals that Hurricane Helene’s September 2024 landfall consumed three years of underwriting gains in a single quarter, the same dynamic that drove the 2017 combined ratio to 186.2 during Hurricane Harvey.

What’s changed: Private flood premiums dropped 9.1% in 2024 to $729.954 million as carriers pulled back, marking the first year-over-year decline since 2019. The combined ratio’s 49.2-point jump from 33.9 to 83.1 within a single year demonstrates how concentrated catastrophe risk overwhelms diversification benefits when a major hurricane lands in a high-uptake state like Florida or North Carolina.

How big is the private flood insurance market?

The US private flood insurance market wrote $729.954 million in net premiums in 2024, down 9.1% from 2023’s peak of $803.069 million. Private insurers serve a small but growing slice of the US flood market, primarily commercial properties, high-value residential homes, and policyholders seeking property coverage exceeding NFIP’s statutory limits. Some carriers also pair indemnity flood policies with parametric flood triggers tied to gauged water levels or storm categories, paying claims faster than loss-adjustment workflows allow.

Top 10 US Private Flood Insurance Writers

• AXA led the 2024 market with $159.792 million in direct premiums written and 13.0% market share.
• Assurant ranked second at $141.687 million in direct premiums and 11.5% market share.
• MS&AD Insurance at $132.085 million in direct premiums and 10.7% market share narrowly leads Berkshire Hathaway’s $132.035 million at the same share.
• Liberty Mutual rounded out the top five with $92.687 million in direct premiums and 7.5% market share.
• The top five carriers combined controlled roughly 53.4% of US private flood premium volume in 2024.

Storm Surge and Hurricane Wind Exposure

• Cotality estimates 6,619,562 US homes at moderate or greater storm surge risk across the Gulf and Atlantic states in 2025.
• The reconstruction cost value of storm-surge-exposed homes totals $2,187.4 billion in the Gulf and Atlantic states in 2025.
• Hurricane wind exposure reaches 33,108,821 homes at moderate or greater risk across the Gulf and Atlantic states.
• The reconstruction cost value of hurricane-wind-exposed homes totals $11,675.9 billion across the Gulf and Atlantic states in 2025.
• The five-times-higher hurricane wind exposure count vs. storm surge reflects the inland reach of wind damage. Flooding remains the more financially catastrophic peril per event when it does occur; every event in the top-10 NFIP payout list was a hurricane or tropical storm whose flooding far outweighed wind losses for the federal program.

Source: Cotality property data and analytics, 2025

Top US Metros at Risk for Flood and Wind Damage

• New York metro carries 878,226 homes at storm surge risk with $415.4 billion in reconstruction cost value, the largest single-metro storm surge exposure in the country.
• Miami metro follows with 509,133 homes at storm surge risk and $124.0 billion in reconstruction cost value.
• Houston metro counts 192,937 homes at storm surge risk and $52.6 billion in reconstruction cost value.
• For hurricane wind exposure, New York leads with 3,765,489 homes at risk and $1,961.1 billion in reconstruction cost value.
• Houston has 2,092,308 homes at hurricane wind risk and $671.3 billion in reconstruction cost value.
• Miami follows with 2,048,827 homes at hurricane wind risk and $511.4 billion in reconstruction cost value.

Worth noting: The same three metros (New York, Miami, Houston) dominate both storm surge and hurricane wind exposure, and they have each appeared in the top-10 NFIP payout events list multiple times. Superstorm Sandy struck New York. Hurricane Andrew, Wilma, and Ian struck Miami. Hurricane Harvey and Ike struck Houston. Geographic concentration of risk is the most under-appreciated driver of NFIP’s actuarial pressure.

Community Participation and Floodplain Management

• Over 22,000 US communities across 56 states and jurisdictions participate in the NFIP as of year-end 2025.
• FEMA’s floodplain management standards save the nation almost $2.4 billion annually in flood losses avoided.
• Participating communities must adopt flood maps and minimum floodplain standards to regulate development in Special Flood Hazard Areas in exchange for access to primary flood insurance.
• FEMA’s Risk MAP process produces Flood Insurance Rate Maps (FIRMs) depicting Special Flood Hazard Areas, defined as areas exposed to a 1% or greater risk of annual flooding.
• The Community Rating System offers reduced premium rates to communities that enhance their floodplain standards beyond NFIP minimums.

Source: Congressional Research Service R44593; FEMA

How many communities participate in NFIP?

Over 22,000 communities in 56 states and jurisdictions participate in the NFIP as of year-end 2025. Communities voluntarily join to access primary flood insurance for their residents, agreeing in return to adopt and enforce floodplain management standards in their Special Flood Hazard Areas. Communities that fail to comply can be placed on probation or suspended from the program, cutting off their residents’ access to NFIP coverage.

Consumer Awareness and the Flood Coverage Gap

• A 2023 Triple-I and Munich Re consumer survey found 22% of homeowners reported being at risk of flood.
• Of those self-identifying as at risk, 78% purchased flood insurance, split between private insurers and the NFIP.
• Among those who purchased coverage, 35% went to a private insurance provider and 43% to the NFIP.
• Standard homeowners and renters policies exclude flood damage, leaving NFIP and private flood insurance as the only viable coverage paths.
• The 22% self-identified flood risk rate sits well below FEMA’s exposure estimates. Cotality counts 6.6 million moderate-or-greater storm surge homes alone, suggesting awareness lags the modeled risk by a wide margin and reinforces the protection gap that drives federal disaster aid demand after every major event. Carriers and lenders are testing embedded insurance distribution at mortgage origination to close the gap before a homeowner is forced to opt in.

Does homeowners’ insurance cover flooding?

Standard homeowners and renters insurance policies exclude flood damage. Property owners need a separate NFIP policy through FEMA or a private flood insurance product to cover flood losses. Per Triple-I, the 2023 Triple-I/Munich Re consumer survey found that 78% of homeowners who self-identify as at flood risk have purchased flood coverage, with 43% going through NFIP and 35% through private insurers.

Common Questions

What is the average NFIP flood insurance premium?

The median annual NFIP premium was $689 as of December 2022 under Risk Rating 2.0, with a full-risk target of $1,288 at the program’s median policy. About one-third of policyholders already pay full-risk premiums; the rest transition under a statutory 18% annual cap, with 9% facing eventual increases above 300%. Gulf Coast states are seeing the largest premium increases under Risk Rating 2.0.

Conclusion

The US flood insurance market splits into two unequal halves: the National Flood Insurance Program carrying over 4.5 million policies and over $1.3 trillion in coverage, and a private market wrapping $729.954 million in 2024 premiums around the NFIP’s edges. Risk Rating 2.0 is closing the actuarial gap one 18% cap at a time, with GAO projecting 2037 as the year 95% of policies reach full-risk premiums, producing a structural premium shortfall for more than a decade while 6,619,562 Gulf and Atlantic homes sit in moderate-or-greater storm surge zones.

Per CRS, the September 30, 2026, reauthorization deadline gives Congress a forcing function on the affordability-versus-solvency trade-off, and the 2024 private market combined-ratio jump to 83.1 shows the underwriting capacity outside NFIP remains fragile. The coverage gap, where Triple-I survey data shows only 22% of homeowners think they are at flood risk while property analytics identify multiples of that figure in measurable exposure, keeps federal disaster aid in the queue after every major event. For US insurance industry participants tracking flood exposure or commercial insurance carriers underwriting coastal property, the years ahead will determine whether NFIP completes its actuarial transition or borrows another tranche from Treasury after the next major hurricane.