Longmont Disaster Risk Score & Hazard Analysis
With a population of 102,183 and a calculated risk score of 84.8, Longmont faces unique challenges. This page is a complete hazard risk assessment for Longmont, CO. The community in Longmont is tight-knit and spirited. But being prepared means knowing what could go wrong. Historical data suggests a pattern of river flooding activity.
Total Risk Score
Our algorithm assigns Longmont a Risk Score of 84.765 out of 100. This score is heavily influenced by the high probability of River Flooding and Wildfire.
Top Hazards for The Longmont Area
Observing the seasonal cycles typical of Colorado, river flooding constitute a major variable in the local quality of life equations. Moreover weighted against regional averages, this score of 98.1 is statistically significant. Homeowners should verify if their property requires a specialized flood policy annex.
As population density grows in Colorado, future climate projections suggest an uptick in wildfire severity. However, our modeling, based on FEMA and NOAA datasets, assigns a score of 96.7/100. During peak season, air quality can dissolve quickly, making N95 masks an essential kit item.
As population density grows in Colorado, future climate projections suggest an uptick in landslide severity. However, our modeling, based on FEMA and NOAA datasets, assigns a score of 96.2/100. Unlike weather events, a landslide offers no warning, demanding 24/7 readiness.
Monitor Active Threats
Longmont has identified seismic or wildfire risks. Check our real-time tracker for active events.

The Apartment Fortress
Living in Longmont? Learn how to handle water storage, sanitation, and security in a small space.
How to Prepare in Longmont
Read the Full Guide →General preparedness is critical for Longmont. While specific risks vary, the fundamentals of survival—water, food, and information—remain the same.
Critical Action Checklist
- 1Keep a physical map of the local area in case GPS fails.
- 2Maintain a 3-day supply of non-perishable food and water.
- 3Have a first aid kit and a supply of prescription medications.
- 4Keep a battery-powered radio to stay informed during power outages.
- 5Establish a family communication plan for when cell towers are down.
Essential Gear for Longmont

Power
Anker PowerCore 10K
Pocket-sized power to keep your phone alive for emergency calls.

Home
Gorilla Tape (Black)
Heavy-duty tape for emergency repairs, sealing windows, or medical improvisation.

Pets
PetBonus Collapsible Dog Bowls
Collapsible bowls for easy packing. Hydration is critical for pets during stress.
Your safety depends on your readiness. Start building your emergency kit for River Flooding now.
View Complete Gear Checklist →Compare Nearby Cities
| City | Risk Score | Analysis |
|---|---|---|
| Denver | 90.3 | Denver and Longmont share similar regional risks, but our data gives Longmont the edge in overall safety. |
| Colorado Springs | 91.0 | When compared to Colorado Springs, Longmont is statistically safer. The difference of 6.2 points highlights local geological and meteorological variations. |
| Aurora | 91.8 | Aurora and Longmont share similar regional risks, but our data gives Longmont the edge in overall safety. |
| Fort Collins | 90.9 | Fort Collins and Longmont share similar regional risks, but our data gives Longmont the edge in overall safety. |
| Lakewood | 92.5 | Choosing between Longmont and Lakewood? Longmont presents a lower overall risk profile. |
Frequently Asked Questions
How common are River Floodings in Longmont?
With a risk score of 98.1 for River Flooding, Longmont is considered highly vulnerable. Residents should have a specific plan for River Flooding events, which are the primary driver of the city's overall risk profile.
Is Longmont safer than other cities in Colorado?
It varies by hazard. While Longmont has its own risk profile (Total Score: 84.8), it is generally comparable to the average in Colorado. See our state rankings for a direct comparison.
Should I move to Longmont given the risk of Wildfire?
Every city has risks. The threat of Wildfire (Score: 96.7) is manageable with proper preparation. The local infrastructure in Longmont is designed to handle this, but personal insurance and a 'go-bag' are recommended.
How does Longmont compare to other cities in Colorado?
See the full Colorado Disaster Rankings to see how Longmont stacks up against other cities in the state.