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When a hurricane makes landfall in Florida, the images are predictable: storm surge swallowing beach road mansions, news cameras on flooded coastal highways. Flood insurance is something coastal people have, and everyone else is mostly fine.
That assumption is wrong. And Hurricane Helene, which struck the continental United States in September 2024 as a Category 4 storm before driving severe inland flooding through the Appalachian region, made the cost of that assumption impossible to ignore.
In Tennessee, one of the states hit hardest by Helene's rainfall and resulting river flooding, the NFIP participation rate was 0.723%. In North Carolina, where flooding killed more than 100 people and destroyed entire mountain communities, the statewide rate was 2.645%, but 75% of the state's 131,721 NFIP policies were concentrated in 19 coastal counties. Across the 23 western North Carolina counties in the Helene impact zone, MoneyGeek's analysis of FEMA county-level data found just 6,950 active flood policies, an estimated penetration rate of roughly 1.5%. Buncombe County, home to Asheville, had 1,468. For every home that had flood insurance when the water came, dozens did not.
Helene was not an anomaly. It was a demonstration of a structural failure that MoneyGeek's analysis of FEMA, Census and flood risk data shows has been deepening for years. The states with the largest disconnect between flood risk and flood insurance coverage aren't the ones everyone imagines. They are inland states, where risk is rising, maps are stale, and the cultural assumption that "we don't flood here" is both widespread and demonstrably false.
The Pearson correlation between a state's flood Expected Annual Loss and its NFIP policy penetration rate is 0.36. That is a weak-to-moderate positive relationship. States with higher flood risk usually have slightly more coverage, but the relationship is weak enough that it's almost meaningless as a predictor. Tennessee has $233 million in annual expected flood losses and a 0.72% NFIP penetration rate. Louisiana has $759 million in expected annual flood losses and a 19.4% rate. The difference isn't just risk: it's perception, mandate structure, and the reliability of maps that determine who must buy coverage.
MoneyGeek's composite Flood Coverage Gap Score incorporates three equally weighted pillars: flood risk exposure (Expected Annual Loss plus share of losses outside SFHAs), coverage level (NFIP penetration rate) and map reliability (share of FEMA maps more than 10 years old). Higher scores indicate worse coverage outcomes.
Fewer than four in 1,000 Utah homes carry flood insurance (0.338% penetration, 4,249 policies across 1.26 million housing units). At the same time, 93.6% of FEMA flood maps are more than a decade old and 88.7% of the state's expected annual flood losses fall outside designated flood zones. This is the defining profile of the inland coverage deficit: real risk ($43 million in expected annual losses), almost no coverage, and maps that are functionally useless for risk communication.
California carries $410 million in expected annual flood losses, and 82.1% of those losses fall outside FEMA's SFHAs. Yet the NFIP penetration rate is 1.179%, leaving roughly 99% of the state's 14.8 million housing units without flood coverage or adequate homeowners insurance to compensate. With 92% of maps more than a decade old, the state's flood zone designations are among the most outdated in the country.
Nevada holds a singular distinction: 99.5% of its FEMA flood maps are more than 10 years old, the highest share of any state. Combined with a 0.675% penetration rate and $82 million in expected annual losses, Nevada presents a state where the risk communication infrastructure has essentially stopped functioning.
With 94.3% of maps outdated and 82.7% of expected losses falling outside SFHAs, the divide between perceived and actual flood risk is among the widest in the country. NFIP penetration: 0.678% (21,949 policies across 3.2 million housing units).
Expected annual flood losses are relatively modest at $17 million, but 97.2% of the state's FEMA maps are more than 10 years old and 80.4% of losses fall outside SFHAs. A coverage rate of 1.145% leaves most homeowners unprotected against a risk the federal mapping system no longer accurately communicates.
With 93.9% outdated maps and 75.4% of losses outside SFHAs, South Dakota's flood risk information is as stale as any state in the country. NFIP penetration: 0.614%.
Tennessee is the emotional center of this analysis. The state carries $233 million in expected annual flood losses and a 0.723% NFIP penetration rate. When Hurricane Helene struck, 23,106 households had flood policies in a state with 3.2 million housing units, most of them relying on homeowners insurance that doesn't cover flood. The remaining 3.17 million absorbed whatever the storm brought with no coverage.
Illinois has $115 million in expected annual flood losses, 77.5% of which fall outside designated SFHAs. With an NFIP penetration rate of 0.566% and 88% of maps outdated, Illinois represents the high-population inland state pattern: large number of at-risk households, essentially no coverage, no federal mandate trigger.
Texas is the most important outlier in the top 10 and receives dedicated analysis in the section following the full ranking table.
With a 0.381% NFIP penetration rate, 83.1% outdated maps and 79.2% of expected losses falling outside SFHAs, Wisconsin closes the top 10 as another high-population Midwest state where the flood insurance system has almost entirely failed to reach homeowners.
The table below covers all 50 states and Washington, D.C., ranked by MoneyGeek's composite Flood Coverage Gap Score. It shows not just how many homes carry flood insurance in each state, but how much risk falls outside federally designated flood zones and how current the maps are that define those zones.
Ranked by Composite Flood Coverage Gap Score (Rank 1 = greatest shortfall). Higher scores indicate a greater mismatch between flood risk exposure and insurance coverage. EAL = Expected Annual Loss (FEMA's estimate of average annual flood damage in dollars). SFHA = Special Flood Hazard Area (FEMA's designated high-risk flood zone).
N/A indicates Fathom U.S. Flood Risk Index data was not available for Alaska, Hawaii and Washington, D.C. Composite scores for those three jurisdictions are based on flood risk exposure and coverage rate only. See Methodology for full details.
1 | Utah | 81.0 | 0.338% | 4,249 | $43M | 88.7% | 93.6% |
2 | California | 80.3 | 1.179% | 173,982 | $410M | 82.1% | 92.0% |
3 | Nevada | 79.7 | 0.675% | 9,107 | $82M | 74.3% | 99.5% |
4 | Arizona | 79.3 | 0.678% | 21,949 | $55M | 82.7% | 94.3% |
5 | New Hampshire | 78.8 | 1.145% | 7,478 | $17M | 80.4% | 97.2% |
6 | South Dakota | 77.4 | 0.614% | 2,561 | $46M | 75.4% | 93.9% |
7 | Tennessee | 77.3 | 0.723% | 23,106 | $233M | 72.0% | 92.5% |
8 | Illinois | 76.0 | 0.566% | 30,951 | $115M | 77.5% | 88.0% |
9 | Texas | 74.7 | 4.788% | 593,472 | $2,000M | 56.0% | 77.5% |
10 | Wisconsin | 74.2 | 0.381% | 10,630 | $56M | 79.2% | 83.1% |
11 | Oklahoma | 72.9 | 0.481% | 8,597 | $54M | 69.7% | 86.0% |
12 | West Virginia | 72.0 | 1.065% | 9,202 | $81M | 58.0% | 92.5% |
13 | Arkansas | 71.4 | 0.798% | 11,249 | $96M | 54.5% | 91.9% |
14 | New Mexico | 71.2 | 1.412% | 13,630 | $57M | 68.8% | 86.3% |
15 | Montana | 70.5 | 0.714% | 3,821 | $21M | 83.5% | 74.0% |
16 | Ohio | 69.3 | 0.420% | 22,342 | $134M | 50.5% | 86.9% |
17 | Nebraska | 68.8 | 0.842% | 7,356 | $56M | 58.8% | 84.2% |
18 | Vermont | 68.0 | 1.152% | 3,931 | $19M | 59.7% | 83.8% |
19 | Idaho | 67.9 | 0.619% | 5,043 | $8M | 78.5% | 70.5% |
20 | Massachusetts | 66.8 | 1.897% | 57,779 | $72M | 74.3% | 74.5% |
21 | Wyoming | 66.8 | 0.577% | 1,616 | $7M | 80.5% | 66.6% |
22 | New York | 66.2 | 1.921% | 165,841 | $334M | 65.2% | 73.1% |
23 | Connecticut | 66.0 | 2.029% | 31,374 | $33M | 65.8% | 78.9% |
24 | Georgia | 64.7 | 1.544% | 71,170 | $59M | 53.9% | 80.1% |
25 | North Dakota | 64.6 | 1.542% | 5,829 | $54M | 77.4% | 66.4% |
26 | Kentucky | 64.6 | 0.843% | 17,172 | $106M | 56.9% | 74.3% |
27 | Oregon | 64.3 | 1.218% | 22,890 | $111M | 73.6% | 65.4% |
28 | Missouri | 64.1 | 0.521% | 14,822 | $122M | 52.1% | 74.4% |
29 | Michigan | 63.1 | 0.412% | 19,120 | $90M | 78.2% | 57.0% |
30 | Colorado | 62.4 | 0.610% | 16,099 | $98M | 76.5% | 57.0% |
31 | Pennsylvania | 62.0 | 0.727% | 42,464 | $214M | 60.0% | 63.8% |
32 | Alabama | 62.0 | 1.933% | 45,623 | $88M | 54.7% | 74.3% |
33 | Washington | 61.3 | 0.868% | 29,184 | $69M | 79.1% | 54.4% |
34 | North Carolina | 59.5 | 2.645% | 131,721 | $141M | 43.8% | 76.7% |
35 | Mississippi | 58.9 | 3.685% | 49,768 | $102M | 34.8% | 85.5% |
36 | Kansas | 58.6 | 0.519% | 6,749 | $42M | 70.8% | 52.2% |
37 | Virginia | 58.0 | 2.439% | 90,686 | $145M | 50.2% | 68.6% |
38 | Minnesota | 57.5 | 0.254% | 6,532 | $51M | 77.7% | 44.2% |
39 | Indiana | 55.3 | 0.513% | 15,412 | $80M | 53.9% | 53.4% |
40 | Rhode Island | 51.6 | 2.358% | 11,488 | $13M | 60.4% | 49.9% |
41 | Washington, D.C. | 49.1 | 0.616% | 2,262 | $11M | N/A | N/A |
42 | Alaska | 48.2 | 0.957% | 3,155 | $8M | N/A | N/A |
43 | Maine | 47.8 | 1.122% | 8,500 | $23M | 68.2% | 31.1% |
44 | New Jersey | 47.2 | 5.166% | 196,511 | $819M | 27.9% | 53.7% |
45 | Iowa | 42.7 | 0.648% | 9,382 | $136M | 57.5% | 21.0% |
46 | South Carolina | 42.1 | 7.752% | 193,038 | $35M | 34.3% | 64.4% |
47 | Maryland | 40.5 | 2.415% | 62,120 | $60M | 46.0% | 31.3% |
48 | Louisiana | 30.2 | 19.395% | 412,131 | $759M | 42.5% | 64.9% |
49 | Florida | 27.0 | 16.981% | 1,774,778 | $298M | 36.2% | 60.3% |
50 | Delaware | 26.9 | 5.393% | 25,428 | $30M | 21.5% | 26.4% |
51 | Hawaii | 23.3 | 10.677% | 61,078 | $26M | N/A | N/A |
Texas is the most consequential outlier in the dataset. At 4.788% NFIP penetration, it has far higher coverage than any other state in the top 10, driven by 593,472 active policies. Houston's experience with Harvey in 2017, which produced approximately $125 billion in damage and ranks second only to Hurricane Katrina among the costliest U.S. natural disasters according to NOAA's Billion-Dollar Weather and Climate Disasters data, created a lasting awareness effect. Texas also has a substantial SFHA population along its coastal and river corridor communities, generating more mandatory purchase requirements than most inland states.
But 4.788% penetration against $2 billion in expected annual flood losses means 95.2% of Texas housing units, roughly 11.8 million homes, carry no flood coverage. In absolute terms, Texas has more uninsured flood-exposed homes than any other state in the country, and homeowners insurance in Texas doesn't fill that gap. Its coverage rate is better than Utah's; the scale of exposed population is not comparable. Texas also illustrates the limits of outdated maps: with 77.5% of its FIRMs more than 10 years old and geography spanning coastal plain, Hill Country and Rio Grande basin, actual flood risk is almost certainly underrepresented by official designations.
Florida (16.981%) and Louisiana (19.395%) rank 49th and 48th in composite score, respectively. They have among the smallest shortfalls in the analysis. Yet both carry enormous absolute flood exposure. Louisiana carries $759 million in expected annual flood losses, and Florida $298 million per FEMA's National Risk Index. High NFIP penetration doesn't mean Florida homeowners insurance covers the rest of their exposure. (Note: FEMA NRI figures may understate Florida's true exposure relative to private-sector models; nonetheless, both states rank among the highest-risk in the country.)
The reason for their high coverage rates is structural, not cultural. Both states have enormous coastal SFHA populations with federally backed mortgages, and the mandatory purchase trigger has worked here because designated zones encompass a substantial share of where people live. Even so, 36.2% of Florida's expected flood losses fall outside SFHAs, and 42.5% of Louisiana's do (Fathom U.S. Flood Risk Index; these percentages reflect Fathom's flood model and should not be applied to FEMA NRI dollar figures, which use a separate model). In Florida, roughly one in three flood dollars hits homes outside mandatory purchase zones. In Louisiana, the figure is closer to two in five.
Hawaii's 10.677% NFIP penetration rate, third-highest nationally, reflects island geography that concentrates population in coastal areas where SFHA designations are denser and lender requirements more common. Fathom data is unavailable for Hawaii, which limits precision in the map-age and SFHA-loss-share components of its composite score.
Three structural failures explain why 97 out of 100 American homeowners carry no flood insurance. None of them is accidental. Each was built into the system over decades, and together they make the coverage pattern this analysis documents not just predictable, but nearly inevitable.
The foundation of the NFIP is the Flood Insurance Rate Map, the FEMA-produced document that designates which parcels sit in Special Flood Hazard Areas. Properties with federally backed mortgages in SFHAs are required to carry flood insurance. Properties outside SFHAs are not.
But the maps are not current. The Fathom U.S. Flood Risk Index shows that in Nevada, 99.5% of FEMA flood maps are more than 10 years old. In New Hampshire, 97.2%. In Arizona, 94.3%. In South Dakota, 93.9%. These are maps drawn before a decade of western wildfire removed vegetation that absorbs rainfall, before atmospheric rivers became a recurring feature of California winters, before updated NOAA precipitation frequency data reflected a changing climate.
The consequence is direct. In states with the oldest maps, the disconnect between the designated flood zone and the actual flood zone is widest. In Utah, 88.7% of expected annual flood losses fall outside FEMA's official Special Flood Hazard Areas. In Montana, 83.5%. In Arizona, 82.7%. In California, 82.1%. A homeowner who checks the FEMA flood map portal, sees "Zone X" and concludes they don't need flood insurance is making a rational decision based on a broken input.
On average, about 40% of NFIP flood insurance claims come from outside high-risk flood zones, according to FEMA. The maps that tell people whether they are at risk are systematically mislabeling the risk.
The NFIP's purchase mandate only applies inside SFHAs for properties with federally backed mortgages. Outside those zones, flood insurance is entirely voluntary. Given what people pay for housing and the competing demands on a household budget, a voluntary insurance product protecting against an event most homeowners have never experienced rarely gets purchased.
Louisiana and Florida, the two states with the highest NFIP penetration, have large coastal populations with federally mortgaged properties inside SFHAs. Their residents buy coverage because lenders require it. Tennessee and Ohio, which have large inland populations with flood risk concentrated in river valleys that may not have been mapped since the 1990s, buy coverage almost never. That's not a criticism of those homeowners. Most of them have never been told they are at risk. Their maps say they aren't. Their lenders haven't required coverage. The system is designed to leave them exposed.
Flooding is the most common and costliest natural disaster in the United States, and 90% of all presidentially declared disasters involve flooding, according to FEMA. Between 2010 and 2023, direct property damage from flooding totaled nearly $144 billion (in 2023 dollars), and NFIP insurance payments on property damage totaled approximately $50 billion, just 35% of direct damages, according to data compiled by the Federal Reserve Bank of New York from NOAA and NFIP records, yet standard homeowners policies exclude flood damage entirely.
But Americans do not perceive floods as an inland risk. The combination of a mandate structure that misses most inland properties, maps that are a decade or more out of date, and a public that associates flood risk with coastlines it has never lived near produces the coverage pattern this analysis documents: 26 states with sub-1% NFIP penetration and a national average of 3.14%.
For the roughly 97 out of 100 American homeowners without flood insurance, the standard homeowners policy provides zero flood coverage. That's not fine print: it's a fundamental design feature of standard U.S. property insurance. A homeowner with a $400,000 policy who experiences $80,000 in flood damage will receive nothing from that policy. FEMA's Individual Assistance program provides some post-disaster relief, but grants are capped and recovery is rarely complete.
The NFIP offers flood policies to most U.S. property owners regardless of flood zone. The private flood insurance market has also grown in recent years, with companies including Neptune Flood, Palomar and several major carriers now offering policies that may provide broader or lower-cost coverage than the NFIP for some properties.
For homeowners in states with high composite scores, three questions are worth investigating before the next storm: whether they are inside or outside an SFHA (the FEMA flood map service portal allows free address lookup), whether their map reflects current risk and what the Fathom state-level data suggests about losses outside their designated zone, and whether private flood coverage might offer better value than the NFIP for their specific property.
Flood insurance is also a transaction requirement. Properties inside SFHAs with federally backed mortgages must have flood coverage for the sale to close. An estimated 1,400 property transactions per day nationally require flood insurance, according to National Association of Realtors research. When the NFIP lapses, those transactions freeze. A lapse in October 2026 would disrupt real estate markets in high-penetration states where the mandatory purchase requirement is most active.
Two deadlines converge in the second half of 2026 in ways that will test every finding in this study.
The Atlantic hurricane season begins June 1, 2026. Peak activity runs August through October. The NFIP's current authorization expires September 30, 2026, directly inside that window. If Congress allows the program to lapse again, as it has 34 times since fiscal year 2017, flood insurance transactions will freeze during the most active storm period of the year, leaving millions of homeowners wondering whether their homeowners policy covers hurricane damage.
More consequentially: the inland states that Helene identified as dangerously exposed have not materially improved their coverage rates. A 0.72% NFIP penetration rate in Tennessee is a structural condition, not a data artifact. It doesn't change in 12 months. The next major inland flood event, whether from a hurricane, an atmospheric river pushing up from the Gulf or a sustained Great Plains rainfall event, will find the same coverage desert that Helene found.
The insurance system has, for decades, told tens of millions of inland homeowners they didn't need flood coverage, using maps that are now a decade or more out of date, and those homeowners have reasonably believed it. Closing this divide requires correcting two failures simultaneously: updating the maps that define who is at risk, and creating a purchase incentive that reaches the 96.86% of American households currently carrying none. The storms won't wait for either.
MoneyGeek analyzed flood insurance coverage shortfalls across all 50 states and Washington, D.C., using four primary sources: FEMA's National Flood Insurance Program (active policies as of Dec. 31, 2025), FEMA's National Risk Index (expected annual flood loss, NRI v1.19, March 2023), the Fathom U.S. Flood Risk Index (FEMA Flood Insurance Rate Map age and percentage of expected annual loss outside FEMA Special Flood Hazard Areas) and the U.S. Census Bureau's American Community Survey (total housing units, 1-year estimates, 2023).
About Nathan Paulus
Nathan Paulus is the Head of Content at MoneyGeek, where he conducts original data analysis and oversees editorial strategy for insurance and personal finance coverage. He has published hundreds of data-driven studies analyzing insurance markets, consumer costs and coverage trends over the past decade. His research combines statistical analysis with accessible financial guidance for millions of readers annually.
Paulus earned his B.A. in English from the University of St. Thomas, Houston.
