PlainHazard

Original research, PlainHazard editorial

Do More Disasters Mean More Damage? State Frequency vs. Cost

Compare each U.S. state's FEMA disaster-declaration count with NOAA-recorded storm damage (2015–2025), using a matched OpenFEMA window for damage-per-declaration.

Research period:

Compiled by PlainHazard Editorial on 2026-08-03

Research question

Does the state with the most FEMA disaster declarations also suffer the most storm damage, or do a small number of high-impact events make some states far costlier than their declaration count suggests?

Methodology

This analysis draws three live figures per state: OpenFEMA declaration counts for the full ingest window (1953–present), OpenFEMA unique disaster numbers with fiscal year 2015–2025, and NOAA property-plus-crop damage for the same 2015–2025 extract. States are ranked by total damage and, separately, by all-time declaration count. Damage-per-declaration uses only the matched 2015–2025 OpenFEMA window as the denominator (≥5 windowed declarations) so the ratio does not mix all-time FEMA totals with a decade of NOAA damage. Nothing on this page is hardcoded.

Frequency and cost measure different things. A declaration is a federal action that can be triggered by a relatively contained event; damage is a dollar estimate dominated by a handful of catastrophic storms. A state that experiences many separate moderate events accumulates a high declaration count without necessarily topping the damage table, while a state struck by one or two major hurricanes can post enormous damage on comparatively few declarations. Comparing the two rankings side by side is the clearest way to see which states are "frequently declared" versus "expensively hit."

See the methodology page for the source vintage and how the figures are derived.

Top 10 states by total storm damage

NOAA property + crop damage, 2015–2025, compare against declaration counts in the table below

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What this shows Texas leads on NOAA damage with $71.0B (2015–2025), yet California has the most all-time FEMA declarations (396) - frequency and cost do not line up.

Source NOAA NCEI Storm Events Database As of 2015–2025

Frequency vs. cost, side by side

Top 10 states by NOAA storm damage (2015–2025). All-time FEMA counts show frequency context; damage-per-declaration uses OpenFEMA unique disasters in fiscal years 2015–2025 only.

# State NOAA damage (2015–2025) FEMA decls (all-time) FEMA decls (2015–2025) Damage / matched decl
1 Texas (TX) $71.0B 389 48 $1.5B
2 Florida (FL) $44.7B 188 50 $894.7M
3 Louisiana (LA) $37.4B 111 37 $1.0B
4 California (CA) $22.3B 396 156 $142.9M
5 Puerto Rico (PR) $19.1B 51 19 $1.0B
6 Georgia (GA) $8.2B 81 23 $354.5M
7 North Carolina (NC) $6.5B 85 28 $233.0M
8 Guam (GU) $6.1B 25 8 $760.7M
9 Colorado (CO) $5.8B 111 24 $240.1M
10 Hawaii (HI) $5.7B 72 24 $237.3M

Source: FEMA OpenFEMA Disaster Declarations (all-time frequency; fiscal-year 2015–2025 matched denominator) + NOAA NCEI Storm Events Database damage (2015–2025). Values refresh with the source agencies. FEMA OpenFEMA Disaster Declarations (all-time frequency; fiscal-year 2015–2025 matched denominator) + NOAA NCEI Storm Events Database damage (2015–2025). Values refresh with the source agencies.

Findings

The most-declared state is not the costliest

California records the most FEMA disaster declarations of any state across the full OpenFEMA ingest (396 all-time), but its NOAA-recorded storm damage of $22.3B (2015–2025) does not top the table. The costliest state is Texas, with $71.0B in NOAA damage against 48 OpenFEMA disasters in the same 2015–2025 window (389 all-time). Frequency and cost clearly diverge: many declarations can reflect a steady stream of moderate events, while a high damage total usually traces back to a small number of catastrophic storms.

A few events carry the cost

The clearest illustration is matched-window damage-per-declaration (NOAA 2015–2025 damage ÷ OpenFEMA unique disasters with fiscal year 2015–2025). Texas averages roughly $1.5B of damage for every windowed declaration, far above states whose many windowed declarations each carry smaller losses. That pattern is the signature of high-impact, low-frequency hazards such as major hurricanes and storm surge, which concentrate enormous loss into single events. States dominated by wildfire or recurring severe-storm declarations tend to show the opposite: more declarations, lower damage per declaration.

Hurricane states vs. wildfire and storm states

The divergence largely tracks hazard type. States along the Gulf and Atlantic coasts post their damage in concentrated bursts: a single major hurricane drives property and crop losses into the tens of billions on a handful of declarations, so they sit high on the damage table with a modest declaration count and a very high damage-per-declaration ratio. By contrast, states exposed to recurring wildfire, severe thunderstorms, and flooding accumulate many separate declarations over the years, each carrying smaller field-estimated losses, so they climb the declaration ranking while their damage-per-declaration stays comparatively low. Neither pattern is "worse" in the abstract, they describe different risk profiles that call for different mitigation and insurance strategies.

Property damage versus crop damage

The damage figure on this page combines property and crop losses, and the mix shifts the picture for agricultural states. A state with large farm acreage can record substantial crop damage from drought-adjacent severe weather, hail, and flooding even when its property-damage total is moderate, while a densely-developed coastal state concentrates its losses in built property. Because NOAA estimates these categories separately, the combined total is the fairer single number for cross-state comparison, but readers focused on a specific exposure, a homeowner versus a farm operator, should weigh the relevant component rather than the blended figure.

Why this matters

For preparedness and insurance, the takeaway is that a state's disaster-declaration count and its damage exposure answer different questions. A high count signals frequent disruption and recurring federal involvement; a high damage total, especially a high damage-per-declaration, signals catastrophic tail risk that can overwhelm budgets in a single season. Readers weighing where risk is highest should look at both, alongside the FEMA National Risk Index, which folds expected annual loss, social vulnerability, and resilience into one comparable score.

The practical implication differs by audience. A household deciding where to live, or an insurer pricing a policy, cares most about the tail: the rare, expensive event captured by damage-per-declaration. A state emergency-management office staffing for a typical year cares more about frequency, how often it will stand up a response at all. And a federal budget planner needs both, because the Disaster Relief Fund is drawn down by the steady stream of moderate declarations and periodically blown through by a single catastrophic season. No single ranking answers all three questions, which is exactly why pairing frequency, total damage, and per-event cost, rather than leaning on any one of them, gives the most honest picture of a state's natural-hazard exposure.

What this analysis cannot tell us

FEMA OpenFEMA and NOAA Storm Events remain different instruments (declaration vs weather-event). All-time FEMA counts appear for frequency context only. Damage-per-declaration divides NOAA property+crop damage (2015–2025 extract) by OpenFEMA unique disaster numbers with fiscal_year in 2015–2025, never by the all-time declaration total. NOAA damage figures are field-estimated and exclude losses outside recorded storm events (for example, drought or non-storm flooding), and very large single-event estimates carry wide uncertainty. The comparison says nothing about loss of life or uninsured/indirect economic impact.

Sources

  • FEMA, OpenFEMA Disaster Declarations Summaries v2 - fema.gov/openfema (all-time frequency column; fiscal-year 2015–2025 matched denominator for damage-per-declaration)
  • NOAA, NCEI Storm Events Database - ncdc.noaa.gov/stormevents (property + crop damage, 2015–2025 extract)