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

Giles County Disaster Risk

Giles County, Virginia

FEMA Risk Rating

Very Low

National Percentile

17th

of 3,144 counties

State Rank

#91

of 133 (1 = highest risk)

Flood Risk

42th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Very Low

Higher than 42% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 13% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 10% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 43% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 37% of US counties

Risk Overview

About Natural Disaster Risk in Giles County, Virginia

Giles County faces very low disaster risk

With a composite risk score of 16.57, Giles County ranks well below the national average and sits in the "Very Low" risk category. This means residents face significantly fewer natural disaster threats compared to most U.S. counties.

Among Virginia's safest counties

Giles County's risk score of 16.57 is less than half the Virginia state average of 33.27, placing it among the lowest-risk counties in the commonwealth. This advantage reflects the county's geography and climate patterns.

Safer than most neighboring counties

Giles County's score of 16.57 outperforms nearby Grayson County (24.65) and Greene County (9.29), positioning it as a relatively protected area in southwestern Virginia. Only Greene County in the immediate region shows lower overall risk.

Earthquakes and floods pose greatest threats

Earthquakes (43.23) and floods (42.18) are Giles County's primary natural hazards, though both remain moderate concerns. Tornadoes (10.21) and wildfires (12.91) present minimal risk to the county.

Earthquake and flood insurance recommended

While Giles County's overall risk is low, homeowners should secure flood insurance for properties near waterways and consider earthquake coverage given the region's seismic activity. Standard homeowners policies typically exclude both hazards.

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

Preparedness Guide

What to Prepare for in Giles County

Top Hazards by Exposure

  1. #1
    EarthquakePrepare
    43th percentile
  2. #2
    FloodPrepare
    42th percentile
  3. #3
    HurricanePrepare
    37th percentile

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

Risk Advisory: Giles County

Risk Verdict

Natural disaster exposure in Giles County is lower than roughly three-quarters of U.S. counties, with a composite score at the 17th percentile. The 17th percentile national ranking is one lens; Giles County residents also benefit from reviewing which specific hazard types drive the county's composite score and preparing accordingly.

Hazard Breakdown

Earthquake risk is Giles County's dominant natural hazard, ranked at the 43th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 42th percentile nationally. Additional tracked hazards include hurricane (37th percentile), wildfire (13th percentile), tornado (10th percentile).

Preparedness Context

At the 43th percentile nationally for earthquake risk, Giles County is in a zone where a post-earthquake communications plan matters almost as much as pre-earthquake structural preparation — phone networks are typically congested for hours after a significant event. Flood at the 42th percentile nationally is a separate hazard dimension for Giles County that requires different protective strategies from earthquake preparedness. For Giles County households, the three highest-impact earthquake preparedness actions are: (1) anchor heavy furniture and water heaters, (2) store three days of water at one gallon per person per day, and (3) identify a family reunification plan for the post-quake communication blackout period.

Regional Context

Giles County is 16.7 composite risk points below the Virginia state mean, meaning most other Virginia counties face higher natural hazard exposure.

Is your household prepared for Giles 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 Giles County, VA?
Giles County has a FEMA National Risk Index rating of Very Low, placing it in the 17th 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 Giles County?
Giles County is evaluated for five major natural hazard types: earthquake (43th percentile), flooding (42th percentile), hurricane (37th percentile), wildfire (13th percentile), tornado (10th percentile). The highest-risk hazard is earthquake at the 43th 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 Giles County risk compare to the Virginia average?
Giles County's composite risk percentile is 17th, compared to the Virginia state average of 33th percentile. The state's overall risk rating is Very Low. This means Giles County faces lower natural disaster risk than the typical county in Virginia.
Is Giles County at risk for earthquake?
Yes, Giles County's earthquake risk is at the 43th percentile nationally. This is below the national median, indicating relatively lower exposure. For flooding specifically, Giles County is at the 42th 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.
Is Giles County a safe place to live?
Giles County's composite risk score of 17th percentile is below the Virginia state average of 33th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is earthquake at the 43th percentile. Residents should still maintain emergency preparedness plans and appropriate insurance coverage.
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.