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

Blair County Disaster Risk

Blair County, Pennsylvania

FEMA Risk Rating

Relatively Low

National Percentile

78th

of 3,144 counties

State Rank

#27

of 67 (1 = highest risk)

Flood Risk

87th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Moderate

Higher than 87% 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 59% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 62% of US counties

Hurricane

Tropical cyclone and hurricane risk

Relatively Low

Higher than 79% of US counties

Risk Overview

About Natural Disaster Risk in Blair County, Pennsylvania

Blair County Moderately Above National Average Risk

Blair County's composite risk score of 77.67 sits noticeably above the national average, maintaining a relatively low risk rating overall. The county experiences moderate natural disaster exposure driven primarily by flooding, hurricanes, and tornadoes.

Above-Average Risk for Pennsylvania

Blair County's score of 77.67 exceeds Pennsylvania's statewide average of 67.45 by roughly 15 percent, placing it in the upper half of the state's counties. The county ranks significantly safer than Allegheny (98.09) and Berks (92.72), but riskier than many rural peers.

Riskier Than Neighboring Bedford County

Blair County residents face more hazard exposure than adjacent Bedford County (68.23), though both share similar geographic characteristics. The county compares closely to Huntingdon County and other south-central Pennsylvania communities.

Flooding, Hurricanes, and Tornadoes Top Threats

Flood risk ranks highest at 87.47 in Blair County, reflecting vulnerability to the Juniata River and regional water systems. Hurricane (78.81) and tornado (58.87) risks follow, while wildfire (32.00) presents only modest exposure.

Flood Insurance Priority; Standard Coverage Sufficient

Blair County homeowners should obtain flood insurance given the county's 87.47 flood risk, particularly near river corridors and low-lying areas. Standard homeowners policies adequately cover tornado and wind damage for most residents, making Blair relatively straightforward to insure.

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

Preparedness Guide

What to Prepare for in Blair County

Top Hazards by Exposure

  1. #1
    FloodPrepare
    87th percentile
  2. #2
    HurricanePrepare
    79th percentile
  3. #3
    EarthquakePrepare
    62th percentile

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

Risk Advisory: Blair County

Risk Verdict

Blair County sits below the national average for natural disaster exposure, ranking at the 78th percentile across all U.S. counties. Blair 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 Blair County's dominant natural hazard, ranked at the 87th percentile nationally under FEMA's National Risk Index. Hurricane ranks second at the 79th percentile nationally. Additional tracked hazards include earthquake (62th percentile), tornado (59th percentile), wildfire (32th percentile).

Preparedness Context

With flood ranked as the primary hazard at the 87th percentile nationally, Blair 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. The county's second-ranked hazard, hurricane at the 79th percentile nationally, means Blair County residents face compounding risks from multiple natural hazard types during peak seasons. 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 Blair County households.

Regional Context

A composite score 10.2 points above the Pennsylvania state average puts Blair County in a higher-risk category than most counties in the state.

Is your household prepared for Blair 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 Blair County, PA?
Blair County has a FEMA National Risk Index rating of Relatively Low, placing it in the 78th 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 Blair County?
Blair County is evaluated for five major natural hazard types: flooding (87th percentile), hurricane (79th percentile), earthquake (62th percentile), tornado (59th percentile), wildfire (32th percentile). The highest-risk hazard is flooding at the 87th 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 Blair County risk compare to the Pennsylvania average?
Blair County's composite risk percentile is 78th, compared to the Pennsylvania state average of 67th percentile. The state's overall risk rating is Relatively Low. This means Blair County faces higher natural disaster risk than the typical county in Pennsylvania.
Is Blair County at risk for flooding?
Yes, Blair County's flooding risk is at the 87th 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 Blair County higher risk than average?
Blair County's composite risk score of 78th percentile is above the Pennsylvania state average of 67th percentile. This elevated risk is driven by flooding exposure (87th percentile), along with hurricane and earthquake 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.