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

Chisago County Disaster Risk

Chisago County, Minnesota

FEMA Risk Rating

Relatively Low

National Percentile

45th

of 3,144 counties

State Rank

#40

of 87 (1 = highest risk)

Flood Risk

56th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 56% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 65% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 64% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 4% of US counties

Risk Overview

About Natural Disaster Risk in Chisago County, Minnesota

Chisago's risk sits near the national average

Chisago County scores 44.53 with a "Relatively Low" rating, placing it near the national average and indicating moderate natural disaster exposure. The county's risk profile is shaped by tornado and wildfire threats rather than extreme flooding.

Chisago slightly exceeds Minnesota's average risk

With a composite score of 44.53, Chisago County ranks just above Minnesota's state average of 42.38, positioning it in the state's moderate-risk category. This modest elevation reflects tornado and wildfire vulnerabilities.

Chisago faces tornado risk above regional peers

Chisago County (44.53) sits between safer Chippewa (36.99) and riskier Carlton (70.07), but its tornado score of 64.15 significantly exceeds nearby Chippewa (43.42). This tornado spike distinguishes Chisago's hazard profile in the region.

Tornadoes and wildfires dominate Chisago threats

Chisago County faces tornado risk of 64.15 and wildfire risk of 65.46, both substantial concerns that dwarf its moderate flood risk of 55.66. The combination of spring tornadoes and wildfire season creates two distinct annual hazard periods.

Tornado and wildfire preparedness essential for Chisago

Chisago homeowners should prioritize tornado safety infrastructure (shelter or safe room) and wildfire defensibility, as these two hazards dominate the county's risk profile. Verify homeowners insurance includes tornado coverage and consider wildfire-specific preparation measures.

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

Preparedness Guide

What to Prepare for in Chisago County

Top Hazards by Exposure

  1. #1
    WildfirePrepare
    65th percentile
  2. #2
    TornadoPrepare
    64th percentile
  3. #3
    FloodPrepare
    56th percentile

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

Risk Advisory: Chisago County

Risk Verdict

At the 45th percentile nationally, Chisago County experiences a manageable level of natural hazard risk that falls below the U.S. median. A 45th percentile score positions Chisago County among the nation's lower-risk counties, a genuinely favorable outcome — one that simple, low-cost preparedness habits can reinforce further.

Hazard Breakdown

Wildfire risk is Chisago County's dominant natural hazard, ranked at the 65th percentile nationally under FEMA's National Risk Index. Tornado ranks second at the 64th percentile nationally. Additional tracked hazards include flood (56th percentile), earthquake (4th percentile).

Preparedness Context

Wildfire ranks as Chisago County's primary hazard at the 65th percentile nationally. For Chisago County households in high-WUI areas, go-bag readiness — the ability to leave within 15 minutes — is more important than shelter-in-place planning for most residential properties. The county's tornado exposure at the 64th percentile nationally complements the wildfire risk — saturating rain after burn scarring often triggers secondary flood and debris flow events. Chisago County county's local emergency management office publishes community-specific wildfire risk assessments and evacuation zone maps; households should review their zone assignment and sign up for zone-specific alerts.

Regional Context

At 2.1 points from the Minnesota county mean, Chisago County's overall disaster risk profile is close to typical for this state, with no dramatic deviation in either direction.

Is your household prepared for Chisago 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 Chisago County, MN?
Chisago County has a FEMA National Risk Index rating of Relatively Low, placing it in the 45th 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 Chisago County?
Chisago County is evaluated for five major natural hazard types: wildfire (65th percentile), tornado (64th percentile), flooding (56th percentile), earthquake (4th percentile). The highest-risk hazard is wildfire at the 65th 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 Chisago County risk compare to the Minnesota average?
Chisago County's composite risk percentile is 45th, compared to the Minnesota state average of 42th percentile. The state's overall risk rating is Very Low. This means Chisago County faces higher natural disaster risk than the typical county in Minnesota.
Is Chisago County at risk for wildfire?
Yes, Chisago County's wildfire risk is at the 65th percentile nationally. This is above the national median. For flooding specifically, Chisago County is at the 56th 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 Chisago County higher risk than average?
Chisago County's composite risk score of 45th percentile is above the Minnesota state average of 42th percentile. This elevated risk is driven by wildfire exposure (65th percentile), along with tornado and flooding 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.