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

Alamosa County Disaster Risk

Alamosa County, Colorado

FEMA Risk Rating

Very Low

National Percentile

40th

of 3,144 counties

State Rank

#30

of 64 (1 = highest risk)

Flood Risk

44th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 44% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 62% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 17% of US counties

Earthquake

Seismic activity and ground shaking risk

Moderate

Higher than 83% of US counties

Risk Overview

About Natural Disaster Risk in Alamosa County, Colorado

Alamosa enjoys one of Colorado's lowest risk profiles

Alamosa County scores 40.36 on the composite risk scale, essentially matching Colorado's state average of 40.67 and placing it well below national hazard exposure. This very low risk rating reflects relatively favorable conditions across most disaster types.

Among Colorado's safest counties by overall measure

Alamosa's 40.36 composite score ranks it near the bottom for disaster risk statewide, with exposure considerably lower than the Denver metro counties to the northeast. Only a few Colorado counties experience comparably low multi-hazard vulnerability.

Safer than mountain and plains neighbors alike

Alamosa (40.36) sits well below Archuleta County (34.48) to the southwest and dramatically below Baca County (23.16) to the east in absolute terms, though all three share very low risk profiles. This isolated valley location offers natural protection against many hazard types.

Earthquakes present the primary concern here

Earthquakes pose Alamosa's highest risk at 82.54, reflecting proximity to regional fault systems despite the county's overall low hazard profile. Wildfire risk of 62.28 and flood risk of 43.73 remain manageable but merit basic preparedness.

Focus earthquake insurance on retrofitting needs

Alamosa residents should prioritize earthquake insurance and structural evaluation, as seismic risk (82.54) outpaces other local hazards. Basic homeowner coverage paired with earthquake protection provides cost-effective security in this relatively low-risk county.

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

Preparedness Guide

What to Prepare for in Alamosa County

Top Hazards by Exposure

  1. #1
    EarthquakePrepare
    83th percentile
  2. #2
    WildfirePrepare
    62th percentile
  3. #3
    FloodPrepare
    44th percentile

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

Risk Advisory: Alamosa County

Risk Verdict

At the 40th percentile nationally, Alamosa County experiences relatively limited natural hazard pressure compared to most of the country. Residents of Alamosa County can use the 40th percentile ranking as a baseline, while recognizing that individual properties may still lie in specific hazard zones that differ from the county average.

Hazard Breakdown

Earthquake risk is Alamosa County's dominant natural hazard, ranked at the 83th percentile nationally under FEMA's National Risk Index. Wildfire ranks second at the 62th percentile nationally. Additional tracked hazards include flood (44th percentile), tornado (17th percentile).

Preparedness Context

Alamosa County ranks at the 83th 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 62th percentile nationally is a separate hazard dimension for Alamosa County that requires different protective strategies from earthquake preparedness. For earthquake preparedness, Alamosa County'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

The county's composite score diverges by only 0.3 points from the Colorado average, making Alamosa County's hazard profile broadly typical for this part of the state.

Is your household prepared for Alamosa 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 Alamosa County, CO?
Alamosa County has a FEMA National Risk Index rating of Very Low, placing it in the 40th 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 Alamosa County?
Alamosa County is evaluated for five major natural hazard types: earthquake (83th percentile), wildfire (62th percentile), flooding (44th percentile), tornado (17th percentile). The highest-risk hazard is earthquake at the 83th 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 Alamosa County risk compare to the Colorado average?
Alamosa County's composite risk percentile is 40th, compared to the Colorado state average of 41th percentile. The state's overall risk rating is Very Low. This means Alamosa County faces lower natural disaster risk than the typical county in Colorado.
Is Alamosa County at risk for earthquake?
Yes, Alamosa County's earthquake risk is at the 83th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Alamosa County is at the 44th 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 Alamosa County a safe place to live?
Alamosa County's composite risk score of 40th percentile is below the Colorado state average of 41th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is earthquake at the 83th 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.