riskbycounty
FEMA NRI 1.19.0Updated Nov 2023 · Coverage 2014–2023Methodology

Polk County Disaster Risk

Polk County, Florida

FEMA Risk Rating

Relatively High

National Percentile

97th

of 3,144 counties

State Rank

#13

of 67 (1 = highest risk)

Flood Risk

95th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively High

Higher than 95% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively High

Higher than 97% of US counties

Tornado

Tornado and severe thunderstorm risk

Moderate

Higher than 94% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 52% of US counties

Hurricane

Tropical cyclone and hurricane risk

Relatively High

Higher than 98% of US counties

Risk Overview

About Natural Disaster Risk in Polk County, Florida

Polk County ranks high for disasters

Polk County's composite risk score of 96.53 places it among the highest-risk counties in the United States, rated Relatively High. Despite being inland, the county faces significant hurricane exposure at 98.50 and wildfire risk at 96.98.

Top-tier risk within Florida

At 96.53, Polk County ranks among Florida's most disaster-prone communities, standing 20.79 points above the state average of 75.74. The county's inland position provides little protection; hurricane and tornado exposure keep it among the state's highest-risk areas.

Central Florida's riskiest county

Polk's 96.53 score exceeds nearby Osceola County (91.95) but trails coastal counties like Pasco (95.96) and Pinellas (98.22). Putnam County to the north scores notably lower at 79.74, showing how proximity to hurricane exposure zones amplifies central Florida's disaster risk.

Hurricanes and wildfires dominate

Polk faces exceptional hurricane risk at 98.50 and wildfire exposure at 96.98, making storm preparation and landscape management critical year-round. Tornado risk at 93.89 and flood risk at 94.62 add significant secondary threats, though hurricane season remains the primary concern.

Secure comprehensive storm coverage

Polk homeowners should verify wind and hail coverage in their policies—hurricanes and tornadoes regularly batter inland areas with severe gusts. A separate flood policy protects against the rainfall and drainage issues common during Atlantic storm impacts; defensible landscaping also reduces wildfire risk.

Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor

Preparedness Guide

What to Prepare for in Polk County

Top Hazards by Exposure

  1. #1
    HurricanePrepare
    98th percentile
  2. #2
    WildfirePrepare
    97th percentile
  3. #3
    FloodPrepare
    95th percentile

Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)

Risk Advisory: Polk County

Risk Verdict

Polk County ranks in the top tier for natural disaster risk nationally, with a composite score at the 97th percentile. Comprehensive household preparedness — including reviewing insurance, maintaining emergency supplies, and knowing evacuation routes — is strongly recommended.

Hazard Breakdown

Hurricane risk is Polk County's dominant natural hazard, ranked at the 98th percentile nationally under FEMA's National Risk Index. Wildfire ranks second at the 97th percentile nationally. Additional tracked hazards include flood (95th percentile), tornado (94th percentile), earthquake (52th percentile).

Preparedness Context

Polk County ranks at the 98th percentile nationally for hurricane risk. For coastal counties, wind-resistant shutters or impact-rated windows represent the highest single structural investment for reducing property damage. Wildfire, the county's second-ranked hazard at the 97th percentile nationally, represents an additional preparedness consideration for Polk County independent of hurricane season. For extended post-storm outages common in Polk County's hurricane zone, a portable generator (operated outdoors only) and a supply of non-perishable food for at least seven days provides meaningful household resilience.

Regional Context

Compared to other Florida counties, Polk County runs 20.8 composite risk points higher than the state mean — reflecting above-average hazard concentration in this area.

Is your household prepared for Polk County's hazards?

Review FEMA's county-specific preparedness checklists and emergency planning guides.

FEMA Ready Guide →

Frequently Asked Questions

What is the natural disaster risk in Polk County, FL?
Polk County has a FEMA National Risk Index rating of Relatively High, placing it in the 97th percentile nationally out of 3,144 counties. This composite score reflects the county's overall exposure to natural hazards including floods, wildfires, tornadoes, earthquakes, and hurricanes, weighted by expected annual loss and social vulnerability.
What types of natural hazards affect Polk County?
Polk County is evaluated for five major natural hazard types: hurricane (98th percentile), wildfire (97th percentile), flooding (95th percentile), tornado (94th percentile), earthquake (52th percentile). The highest-risk hazard is hurricane at the 98th percentile nationally. These scores are derived from FEMA's National Risk Index, which analyzes expected annual loss, social vulnerability, and community resilience for each hazard type.
How does Polk County risk compare to the Florida average?
Polk County's composite risk percentile is 97th, compared to the Florida state average of 76th percentile. The state's overall risk rating is Relatively Low. This means Polk County faces higher natural disaster risk than the typical county in Florida.
Is Polk County at risk for hurricane?
Yes, Polk County's hurricane risk is at the 98th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Polk County is at the 95th percentile.
How is natural disaster risk measured?
FEMA's National Risk Index (NRI) calculates risk scores for 18 natural hazard types across all U.S. counties and census tracts. The composite score combines Expected Annual Loss (estimated dollar losses from each hazard), Social Vulnerability (demographic factors affecting disaster impact), and Community Resilience (ability to recover). Percentile scores rank each county against all 3,144 U.S. counties, and risk ratings range from Very Low to Very High.
Why is Polk County higher risk than average?
Polk County's composite risk score of 97th percentile is above the Florida state average of 76th percentile. This elevated risk is driven by hurricane exposure (98th percentile), along with wildfire and flooding and tornado and earthquake risk. Geographic location, terrain, climate patterns, and proximity to flood zones or fault lines all influence a county's risk profile.
By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor

Data Source

Risk data sourced from the FEMA National Risk Index (NRI). Risk scores are relative rankings (0–100) across all US counties — not absolute risk measures. Higher scores indicate higher relative risk compared to other counties.

Disclaimer: This data is informational only. It is not financial, insurance, or legal advice. Always consult a qualified professional before making insurance or real estate decisions.