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

Hanover County Disaster Risk

Hanover County, Virginia

FEMA Risk Rating

Relatively Low

National Percentile

53th

of 3,144 counties

State Rank

#30

of 133 (1 = highest risk)

Flood Risk

62th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 62% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 32% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 51% of US counties

Earthquake

Seismic activity and ground shaking risk

Moderate

Higher than 84% of US counties

Hurricane

Tropical cyclone and hurricane risk

Relatively Low

Higher than 75% of US counties

Risk Overview

About Natural Disaster Risk in Hanover County, Virginia

Hanover's Risk Sits Above the National Average

With a composite risk score of 53.50, Hanover ranks as relatively low but exceeds the national baseline for natural disaster exposure. This means the county faces measurable hazard threats that warrant preparation, though at a more moderate level than high-risk areas across the country.

Above Average Risk for Virginia

Hanover's score of 53.50 significantly outpaces Virginia's state average of 33.27, placing it in the upper tier of risk among Virginia counties. The county's exposure is driven by multiple hazard types rather than a single dominant threat.

Riskier Than Most Nearby Counties

Hanover faces notably higher risk than Harrisonburg (26.59) and Hopewell (17.24) to the south and west, but carries less exposure than Henrico County (83.40) just to the east. Among central Virginia counties, Hanover occupies a middle-to-upper position in the risk spectrum.

Earthquakes and Hurricanes Top Your Threats

Earthquake risk dominates at 83.78—among the highest in the state—while hurricane exposure stands at 74.89, reflecting Hanover's position on the Atlantic seaboard. Flooding also poses significant concern at 61.55, particularly in low-lying areas near the James River and its tributaries.

Secure Earthquake and Flood Coverage Now

Standard homeowners policies exclude earthquake and flood damage, yet both threaten Hanover properties substantially. Obtain separate earthquake and flood insurance today to close these critical coverage gaps before the next major event.

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

Preparedness Guide

What to Prepare for in Hanover County

Top Hazards by Exposure

  1. #1
    EarthquakePrepare
    84th percentile
  2. #2
    HurricanePrepare
    75th percentile
  3. #3
    FloodPrepare
    62th percentile

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

Risk Advisory: Hanover County

Risk Verdict

Hanover County sits below the national average for natural disaster exposure, ranking at the 53th percentile across all U.S. counties. Understanding the specific hazards behind Hanover County's ranking helps residents prioritize where to direct emergency planning efforts.

Hazard Breakdown

Earthquake risk is Hanover County's dominant natural hazard, ranked at the 84th percentile nationally under FEMA's National Risk Index. Hurricane ranks second at the 75th percentile nationally. Additional tracked hazards include flood (62th percentile), tornado (51th percentile), wildfire (32th percentile).

Preparedness Context

At the 84th percentile nationally for earthquake risk, Hanover 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. The county's hurricane risk at the 75th percentile nationally is a seasonal consideration alongside the year-round earthquake threat, requiring awareness of both hazard types. For Hanover 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

A composite score 20.2 points above the Virginia state average puts Hanover County in a higher-risk category than most counties in the state.

Is your household prepared for Hanover 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 Hanover County, VA?
Hanover County has a FEMA National Risk Index rating of Relatively Low, placing it in the 53th 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 Hanover County?
Hanover County is evaluated for five major natural hazard types: earthquake (84th percentile), hurricane (75th percentile), flooding (62th percentile), tornado (51th percentile), wildfire (32th percentile). The highest-risk hazard is earthquake at the 84th 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 Hanover County risk compare to the Virginia average?
Hanover County's composite risk percentile is 53th, compared to the Virginia state average of 33th percentile. The state's overall risk rating is Very Low. This means Hanover County faces higher natural disaster risk than the typical county in Virginia.
Is Hanover County at risk for earthquake?
Yes, Hanover County's earthquake risk is at the 84th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Hanover County is at the 62th 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 Hanover County higher risk than average?
Hanover County's composite risk score of 53th percentile is above the Virginia state average of 33th percentile. This elevated risk is driven by earthquake exposure (84th percentile), along with hurricane and flooding and tornado 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.