Flood history / Texas / ZIP 78580
ZIP 78580
Willacy County, TX
Property owners in ZIP 78580 have been paid $2.1M on 308 National Flood Insurance Program claims between 1979 and 2025 — an average of $7K a claim, across 33 separate years in which someone here filed and was paid.
The heaviest year
1993 is the heaviest year on file: 40 paid claims, 13.0% of the ZIP's total. The rest is spread across the other 32 years on file. The largest named event in the record is Hurricane Hanna, with 31 claims.
90 of those claims — 29.2% — were filed since 2017. The pattern here is still active.
| Named event | Paid claims | Share of record |
|---|---|---|
| Hurricane Hanna | 31 | 10.1% |
| Hurricane Dolly | 29 | 9.4% |
| Hurricane Allen | 27 | 8.8% |
Where the claims sat on the map
Of the 258 claims here that record a rated flood zone, 78 — 30.2% — were on properties rated outside the mapped high-risk area, in a B, C or X zone. Being outside the high-risk zone has not meant much here. Flood insurance is not required outside the high-risk zone, and most properties there do not carry it — so these counts come from the minority who did.
The water near this ZIP
The closest gauges publishing official flood thresholds are North Floodway West of Mercedes (27.3 mi), Rio Grande near San Benito (32.5 mi) and Rio Grande at Anzalduas Reservior (44.5 mi). A gauge describes one point on one river — it will not see street drainage, sewer backup, storm surge or flash flooding.
Read current gauge conditions for 78580 →
What this does not say
These are paid National Flood Insurance Program claims, nothing more. They count insured properties whose owners filed and were paid, so they are a floor on how often this ZIP has flooded — never a measure of how likely it is to flood next. Uninsured flooding leaves no trace here at all.
The figures are aggregates published by FEMA. No individual claim, address or policyholder appears on this page or in the data behind it. Nothing here is a forecast, a warning, or advice about insurance.