Polk County, Florida

What hazards hit Polk County most?

The most frequent records are severe thunderstorm wind events: 351 since 1956. The rank column places the county among Florida's counties by days with a record per 1,000 square miles of land over each hazard's complete period.

Source: NOAA NCEI Storm Events Database (county and forecast-zone records attributed to the county; a zone record shows its own totals on each county it covers). Days: dates with at least one record of the hazard in the county. Ranks: days with a record per 1,000 square miles of land (Census Bureau 2024 Gazetteer), since 1950 for tornadoes, 1955 for hail and thunderstorm wind, 1996 for the rest.

How many tornadoes has Polk County had?

NOAA records 165 tornadoes in Polk County from 1951 to 2024, the strongest rated F4, with 9 deaths and 544 injuries recorded in the county. That is 19th of 67 Florida counties and 111th of 3,080 U.S. counties by days with tornadoes per 1,000 square miles since 1950. A tornado that crossed a county line is counted in each county it touched, with the length of its path inside the county.

Counted as whole tornadoes rather than county records, the Storm Prediction Center's database holds 171 tornadoes whose track touched Polk County since 1950 (NOAA's county records number 165: they file a crossing tornado once per county segment, and the two databases differ on some tracks); along their whole tracks they killed 12 people, 9 of them in Polk County.

Map of the strongest tornado tracks in Florida.

Source: NOAA NCEI Storm Events Database, tornado records by county (path length in the county, maximum width); ratings as published: F scale before February 1, 2007, EF scale after. Whole-track figures: NOAA Storm Prediction Center tornado database (1950-2025). SPC severe weather database.

When was the last damaging storm in Polk County?

The most recent record with damage, injuries or deaths is the July 23, 2024 tornado ($4,704 in damage in 2025 dollars).

Broadcast media shared video from a social media account depicting a very brief land spout tornado impacting a trailer and small carport-style structure, causing minor damage. No additional damage was reported.
National Weather Service event narrative, NOAA Storm Events Database (search the full record, event 1204294)

Source: NOAA NCEI Storm Events Database; every record of 2025-2026 is listed, earlier ones when they caused deaths, injuries or $250,000 of damage (2025 dollars), and every tornado.

The deadliest and costliest records

A damage figure marked "step" is a record from before 1993: NOAA then filed damage by category, and the figure is the category as entered, in the dollars of that year, not an estimate of the loss.

Source: NOAA NCEI Storm Events Database: deaths and injuries direct and indirect; damage is property plus crops as estimated by the National Weather Service, converted to 2025 dollars.

Is it getting more frequent?

Records per decade for Polk County's most frequent hazards. Counts rose everywhere after 1996, when NOAA began recording every event type, so compare decades within a hazard's complete period only (the shaded cells come before it).

Source: NOAA NCEI Storm Events Database, records per calendar decade; zone records from the CZ_TYPE field (Z).

What time of year?

Records by month in Polk County. The two busiest months are in violet.

Source: NOAA NCEI Storm Events Database, records by the month they began.

Federal disaster declarations for Polk County

FEMA's register lists 42 declarations that include Polk County: 24 major disasters, 13 emergencies and 5 fire management assistance declarations. Most were for hurricane (18) and fire (7).

The 40 most recent of 42 are listed; the CSV has every one.

Source: FEMA OpenFEMA Disaster Declarations Summaries (v2), declarations through October 2, 2026; one declaration is counted once however many areas it names. OpenFEMA dataset page.

How many floods has Polk County had?

NOAA's Storm Events Database holds 38 flood or flash flood records for Polk County from 1996 to 2015, on 38 days, with 0 deaths. By flood insurance claims since 1978 (OpenFEMA, as of September 8, 2026), Polk County ranks 222nd of 2,942 U.S. counties.

The National Flood Insurance Program has paid $45.8 million on 1,671 claims filed in Polk County; the most in one year was 418 in 2004. Claims count insured losses only: uninsured flood damage is not in this file.

Source: FEMA OpenFEMA NFIP Redacted Claims, as of September 8, 2026; claims by year of loss, payments in the dollars of the year paid. OpenFEMA dataset page.

FEMA's modeled risk for Polk County

FEMA's National Risk Index rates Polk County Relatively High overall, with an expected annual loss of $213 million. These are FEMA's model estimates of future loss from 18 hazards, not a count of what happened; they can differ from the record above.

Source: FEMA National Risk Index, county table, December 2025 release. FEMA's National Risk Index map.

Counties that share a border with Polk County

1. Hillsborough County 1,355
2. Polk County 1,028
3. Orange County 780
4. Pasco County 743
5. Manatee County 621
6. Lake County 414
7. Highlands County 351
8. Sumter County 327
9. Osceola County 297
10. Hardee County 253
11. Okeechobee County 158

Source: U.S. Census Bureau county adjacency file; NOAA NCEI Storm Events Database, records since 1950. The Census Bureau's adjacency file.

Next

• Tornadoes in FloridaEvery Florida tornado since 1950 and the counties with the most per square mile
• Severe thunderstorm wind in FloridaThe state's severe thunderstorm wind events, by county, year and month
• The Florida recordEvery hazard in the state, its deadliest events and its federal declarations
• FEMA's risk rating for each hazard in Polk CountyThe hazard risk calculator: 18 hazards beside the county's record
• Download Polk County's FEMA declarations (CSV)42 rows: every declaration that named the county, for your own analysis