Fremont County in central Wyoming anchored by Riverton and Lander is the largest county in Wyoming by land area. The Wind River and its tributaries create flash flooding risk especially during spring snowmelt. The Wind River Indian Reservation occupies a large portion of the county creating unique tribal-state emergency coordination requirements. The county faces serious winter storm risk and wildfire risk from surrounding mountains.
// Preparedness Recommendations
- Evacuation routes inland should be identified in advance.
- Store at least 72 hours of food and water.
- Elevate critical belongings above flood level.
- Have backup power ready in case of grid failure.
// Recommended Supplies
Essential gear for power outages, severe weather, and emergency situations in your area.
- Emergency Food Supplies
- Water Filtration & Storage
- Backup Generator
- Solar Backup Power
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// Risk Intelligence
| Threat Score | 4 / 10 Low Risk |
| Primary Hazard | Flash Flooding / Winter Storm |
| Secondary Hazard | Wildfire |
| FEMA Flood Zone | Low |
| Federally Declared Disasters | 5 |
| Last Major Event | 2022 Flooding |
| Event Frequency | Annual |
// Emergency Operations
| Emergency Mgmt Phone | (307) 332-5611 |
| Emergency Shelters | 4 designated facilities |
| Evacuation Routes | US-26 US-287 WY-135 WY-789 |
// County Profile
| County | Fremont County WY |
| State | Wyoming (WY) |
| Population | 40 |
| Area | 9,271 sq miles |
| FEMA Region | Low |
// Major Cities
// Cities in This County
// Other Wyoming Counties
Lincoln County WY
Wildfire / Flash Flooding
5/10
Low
Carbon County WY
Wildfire / Flash Flooding
5/10
Low
Laramie County WY
Tornado / Winter Storm
5/10
Moderate
Niobrara County WY
Tornado / Blizzard
5/10
Low
Natrona County WY
Tornado / Winter Storm
5/10
Moderate
Park County WY
Wildfire / Flash Flooding
5/10
Low