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

Bristol Bay Borough Disaster Risk

Bristol Bay Borough, Alaska

FEMA Risk Rating

Very Low

National Percentile

1th

of 3,144 counties

State Rank

#27

of 30 (1 = highest risk)

Flood Risk

0th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Very Low

Higher than 0% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 34% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 0% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 72% of US counties

Risk Overview

About Natural Disaster Risk in Bristol Bay Borough, Alaska

Among safest counties in America

Bristol Bay Borough's composite score of just 1.21 ranks among the lowest-risk counties nationwide, earning a Very Low rating. This extremely safe profile reflects minimal exposure across flood, wildfire, and tornado hazards despite modest earthquake potential.

Safest community in Alaska by far

At 1.21, Bristol Bay Borough scores dramatically lower than Alaska's 35.22 state average and is the state's safest county by a wide margin. No other Alaskan community approaches this level of natural disaster protection.

Dramatically safer than regional peers

Bristol Bay Borough at 1.21 is roughly 37 times safer than Bethel Census Area (44.31) and 73 times safer than Anchorage Municipality (97.39). Its unique geographic and climatic position creates exceptional hazard protection compared to all Alaskan neighbors.

Only earthquake poses real threat

Earthquake risk at 71.91 is Bristol Bay's sole significant hazard, while wildfire (34.22) remains moderate and flood, tornado risks near zero. The borough's remarkable overall safety stems entirely from minimal exposure to weather-related disasters.

Earthquake insurance covers the exposure

Even in Alaska's safest borough, earthquake risk at 71.91 warrants dedicated seismic coverage since standard homeowners insurance excludes it. This single policy addresses virtually all meaningful natural disaster risk in Bristol Bay.

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

Preparedness Guide

What to Prepare for in Bristol Bay Borough

Top Hazards by Exposure

  1. #1
    EarthquakePrepare
    72th percentile
  2. #2
    WildfirePrepare
    34th percentile
  3. #3
    TornadoPrepare
    0th percentile

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

Risk Advisory: Bristol Bay Borough

Risk Verdict

At the 1th percentile nationally, Bristol Bay Borough experiences relatively limited natural hazard pressure compared to most of the country. No county at the 1th percentile is entirely free of natural hazard exposure; Bristol Bay Borough residents benefit from staying alert to local conditions and signing up for county emergency alerts.

Hazard Breakdown

Earthquake risk is Bristol Bay Borough's dominant natural hazard, ranked at the 72th percentile nationally under FEMA's National Risk Index. Wildfire ranks second at the 34th percentile nationally. Additional tracked hazards include tornado (0th percentile), flood (0th percentile).

Preparedness Context

Bristol Bay Borough ranks at the 72th percentile nationally for earthquake risk. Unlike most natural hazards, earthquakes provide no advance warning; preparedness here means structural adjustments and a practiced response, not alert monitoring. Wildfire, at the 34th percentile nationally in Bristol Bay Borough, adds a weather-dependent hazard layer to what is otherwise a seismic-dominated risk profile. For earthquake preparedness, Bristol Bay Borough's county emergency management office often maintains a list of community water supply points, Red Cross shelter locations, and post-quake assistance programs — useful resources to identify before an event occurs.

Regional Context

A composite score 34.0 points below the Alaska state average puts Bristol Bay Borough in a better-than-typical position relative to neighboring counties.

Is your household prepared for Bristol Bay Borough'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 Bristol Bay Borough, AK?
Bristol Bay Borough has a FEMA National Risk Index rating of Very Low, placing it in the 1th 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 Bristol Bay Borough?
Bristol Bay Borough is evaluated for five major natural hazard types: earthquake (72th percentile), wildfire (34th percentile), tornado (0th percentile), flooding (0th percentile). The highest-risk hazard is earthquake at the 72th 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 Bristol Bay Borough risk compare to the Alaska average?
Bristol Bay Borough's composite risk percentile is 1th, compared to the Alaska state average of 35th percentile. The state's overall risk rating is Very Low. This means Bristol Bay Borough faces lower natural disaster risk than the typical county in Alaska.
Is Bristol Bay Borough at risk for earthquake?
Yes, Bristol Bay Borough's earthquake risk is at the 72th percentile nationally. This is above the national median. For flooding specifically, Bristol Bay Borough is at the 0th 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 Bristol Bay Borough a safe place to live?
Bristol Bay Borough's composite risk score of 1th percentile is below the Alaska state average of 35th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is earthquake at the 72th 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.