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

Arenac County Disaster Risk

Arenac County, Michigan

FEMA Risk Rating

Very Low

National Percentile

20th

of 3,144 counties

State Rank

#70

of 83 (1 = highest risk)

Flood Risk

39th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Very Low

Higher than 39% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 35% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 32% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 18% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 30% of US counties

Risk Overview

About Natural Disaster Risk in Arenac County, Michigan

Arenac well below national disaster risk

Arenac County scores 20.32 on the composite risk scale, earning a Very Low rating below the national average. The county faces minimal exposure across most major natural disaster hazards.

Significantly safer than Michigan average

Arenac's composite risk score of 20.32 sits well below Michigan's state average of 49.56, ranking it among the state's lower-risk counties. The Very Low rating reflects solid disaster resilience.

Comparable risk to nearby Alpena

Arenac scores 20.32, slightly higher than Alcona at 17.75 but substantially lower than Alpena at 28.34. The county maintains a low-risk standing relative to its regional neighbors.

Tornado and flood pose modest concerns

Arenac's primary hazards are tornado risk at 31.87 and flood risk at 39.20, both below state averages. Wildfire risk follows at 35.11, while earthquake exposure remains minimal at 17.84.

Homeowners coverage provides main protection

A standard homeowners policy adequately covers Arenac residents against tornado and wind damage. Flood insurance is optional given the county's moderate flood risk profile, though properties in flood-prone zones should consider separate coverage.

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

Preparedness Guide

What to Prepare for in Arenac County

Top Hazards by Exposure

  1. #1
    FloodPrepare
    39th percentile
  2. #2
    WildfirePrepare
    35th percentile
  3. #3
    TornadoPrepare
    32th percentile

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

Risk Advisory: Arenac County

Risk Verdict

Natural disaster exposure in Arenac County is lower than roughly three-quarters of U.S. counties, with a composite score at the 20th percentile. The 20th percentile national ranking is one lens; Arenac County residents also benefit from reviewing which specific hazard types drive the county's composite score and preparing accordingly.

Hazard Breakdown

Flood risk is Arenac County's dominant natural hazard, ranked at the 39th percentile nationally under FEMA's National Risk Index. Wildfire ranks second at the 35th percentile nationally. Additional tracked hazards include tornado (32th percentile), hurricane (30th percentile), earthquake (18th percentile).

Preparedness Context

With flood ranked as the primary hazard at the 39th percentile nationally, Arenac 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, wildfire at the 35th percentile nationally, means Arenac 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 Arenac County households.

Regional Context

Arenac County is 29.2 composite risk points below the Michigan state mean, meaning most other Michigan counties face higher natural hazard exposure.

Is your household prepared for Arenac 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 Arenac County, MI?
Arenac County has a FEMA National Risk Index rating of Very Low, placing it in the 20th 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 Arenac County?
Arenac County is evaluated for five major natural hazard types: flooding (39th percentile), wildfire (35th percentile), tornado (32th percentile), hurricane (30th percentile), earthquake (18th percentile). The highest-risk hazard is flooding at the 39th 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 Arenac County risk compare to the Michigan average?
Arenac County's composite risk percentile is 20th, compared to the Michigan state average of 50th percentile. The state's overall risk rating is Relatively Low. This means Arenac County faces lower natural disaster risk than the typical county in Michigan.
Is Arenac County at risk for flooding?
Yes, Arenac County's flooding risk is at the 39th percentile nationally. This is below the national median, indicating relatively lower exposure.
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 Arenac County a safe place to live?
Arenac County's composite risk score of 20th percentile is below the Michigan state average of 50th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is flooding at the 39th 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.