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

Alamance County Disaster Risk

Alamance County, North Carolina

FEMA Risk Rating

Relatively Low

National Percentile

77th

of 3,144 counties

State Rank

#39

of 100 (1 = highest risk)

Flood Risk

84th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Moderate

Higher than 84% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 31% of US counties

Tornado

Tornado and severe thunderstorm risk

Moderate

Higher than 82% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 73% of US counties

Hurricane

Tropical cyclone and hurricane risk

Moderate

Higher than 82% of US counties

Risk Overview

About Natural Disaster Risk in Alamance County, North Carolina

Alamance's risk ranks above national average

Alamance County scores 77.07 on the composite risk index, placing it well above the typical U.S. county baseline. This "Relatively Low" rating reflects meaningful exposure to multiple hazard types, particularly flooding, tornadoes, and hurricanes.

Above average risk for North Carolina

At 77.07, Alamance's composite risk score exceeds North Carolina's state average of 66.72, positioning it among the riskier counties in the state. The county faces notably elevated tornado and flood hazards compared to many of its neighbors.

Riskier than nearby Guilford and Randolph

Alamance County's 77.07 score outpaces its neighboring counties in the Piedmont region. Alexander County to the west scores just 45.80, making Alamance considerably more hazard-exposed than its immediate geography would suggest.

Flooding and tornadoes drive your risk profile

Flood risk reaches 83.91 in Alamance, making it one of the county's most pressing natural disaster concerns. Tornado risk ranks nearly as high at 82.28, while hurricane exposure reaches 81.85—creating a triple threat during severe weather season.

Comprehensive coverage essential for Alamance

With flood risk at 83.91, standard homeowners insurance won't protect your property—separate flood insurance through the National Flood Insurance Program is critical. Consider reinforcing your roof and windows against high winds, and maintain an emergency kit updated annually.

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

Preparedness Guide

What to Prepare for in Alamance County

Top Hazards by Exposure

  1. #1
    FloodPrepare
    84th percentile
  2. #2
    TornadoPrepare
    82th percentile
  3. #3
    HurricanePrepare
    82th percentile

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

Risk Advisory: Alamance County

Risk Verdict

Alamance County sits below the national average for natural disaster exposure, ranking at the 77th percentile across all U.S. counties. Alamance County's elevated composite score reflects cumulative multi-hazard exposure; households should prepare for the county's two or three primary hazard types.

Hazard Breakdown

Flood risk is Alamance County's dominant natural hazard, ranked at the 84th percentile nationally under FEMA's National Risk Index. Tornado ranks second at the 82th percentile nationally. Additional tracked hazards include hurricane (82th percentile), earthquake (73th percentile), wildfire (31th percentile).

Preparedness Context

With flood ranked as the primary hazard at the 84th percentile nationally, Alamance County households should build a go-bag that includes important documents, medications, and supplies to sustain the family for at least three days if evacuation is needed. Secondary tornado exposure at the 82th percentile adds a second preparedness layer; households should review coverage options and alert sign-up for both hazard types. A waterproof container for documents (insurance policies, ID, prescriptions) and a clear household communication plan for when phone networks are congested are the two highest-value low-cost preparedness steps for Alamance County households.

Regional Context

A composite score 10.3 points above the North Carolina state average puts Alamance County in a higher-risk category than most counties in the state.

Is your household prepared for Alamance 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 Alamance County, NC?
Alamance County has a FEMA National Risk Index rating of Relatively Low, placing it in the 77th 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 Alamance County?
Alamance County is evaluated for five major natural hazard types: flooding (84th percentile), tornado (82th percentile), hurricane (82th percentile), earthquake (73th percentile), wildfire (31th percentile). The highest-risk hazard is flooding 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 Alamance County risk compare to the North Carolina average?
Alamance County's composite risk percentile is 77th, compared to the North Carolina state average of 67th percentile. The state's overall risk rating is Relatively Low. This means Alamance County faces higher natural disaster risk than the typical county in North Carolina.
Is Alamance County at risk for flooding?
Yes, Alamance County's flooding risk is at the 84th percentile nationally. This places it in the top quartile for this hazard type.
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 Alamance County higher risk than average?
Alamance County's composite risk score of 77th percentile is above the North Carolina state average of 67th percentile. This elevated risk is driven by flooding exposure (84th percentile), along with tornado and hurricane 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.