- 110 S Washington St
- PO Box H
- Boulder MT 59632
- (406) 225-4035
Address Markers Now Available!
Help emergency services locate your residence faster! Address markers are now available from the county! First maker is free. Download the form and mail it in OR call the GIS Office Monday thru Thursday at 225-4156 for a time to bring it in and pick up your marker.
For Jefferson County emergency information please follow the Jefferson County Montana Sheriff's Office on Facebook page and listen to the county Emergency Broadcast System.
Map DisclaimerBy using the map above you agree to the following disclaimer: Maps are provided for reference purposes only and is NOT an official record. Data comes from many sources and may be incomplete or innacurate. Jefferson County doesn't warrant in any form the completeness or accuracy of data. Map does NOT contain survery grade data.
Disaster and Emergency Services
The mission of the Office of Emergency Management is to protect lives, property, and resources through the four phases of emergency management: Preparedness, Response, Recovery, and Mitigation.
The Jefferson County Sheriff’s Office now uses CodeRED by ONSOLVE for general and emergency notifications. CodeRED is a FREE emergency notification system available to all Jefferson County residents that will send you alerts concerning time-sensitive and/or emergency information that may impact your area via phone calls, text messages, emails, the CodeRED app, and social media.
Jefferson County encourages you to actively participate in emergency preparedness by remaining informed. Cell phones must be registered by YOU to receive these notices, so be sure to register today to receive the information you need, when it matters, regarding events such as:
- Wildfire Alerts
- Evacuation Notices
- Natural Disasters
- Road Closures/Traffic Alerts
- Hazardous Materials Spills
- Extreme Weather Notifications
- Criminal Activities
- Shelter in Place/Lockdowns
- Health Alerts/Advisories
- Boil Water Advisories
- Missing Persons/Children
The CodeRED Mobile Alert app is available for free in the App Store or via Google Play. Your contact information remains private and will only be used for emergency, or at your request, general notifications. Don’t wait! Start receiving notifications that could save your life. Sign up by clicking the link at the top of this page today!
Emergency Broadcast Radio Stations
|Elk Park||103.7 FM||KWEP-LP|
|Jefferson City||100.3 FM||KEAJ-LP|
|Montana City/Clancy||105.9 FM||KWLG-LP|
What Hazards Affect Jefferson County?
The major hazards for Jefferson County are wildfire, hazardous materials, flood, severe storms, and earthquake. Jefferson County residents will receive information during a disaster through the Emergency Alert System. Radio stations in both Helena and Butte are partners in the systems, and will provide 24-hour warning information. If the system is activated those stations will be given instructions by county officials for broadcast to the public.
Jefferson County is protected by nine volunteer fire departments for both structure and wildland fires. These are located at Montana City, Clancy, Jefferson City, Boulder Town, Boulder Rural, Basin, Elk Park, Whitehall (Jefferson Valley), and Willow Creek. Jefferson County is also a member of the Tri-County Fire Working Group.
Two Interstate Highway systems cross Jefferson County both from the North-South, Interstate 15, and from East-West, Interstate 90. These routes subject the county to transportation related accidents with the heavy movement of hazardous materials along these major corridors. Approximately one-fourth of all trucks carry hazardous materials such as gosoline, liquid petroleum gas, chlorine and anhydrous ammonia. There are, in addition, fixed facilities that store hazardous materials to be used in various industrial processes.
The county is subjected to river flooding as well as flash flooding caused by rapid moving storms. The peak of the flood season is typically the months of May and June. A rapid snow melt could cause flooding to occur earlier.For additional information about the designated flood plains in the county, contact the flood plain manager in the County Sanitarian's office.
Jefferson County is at risk for earth quakes, with a total of 32 earthquakes since 1931. The USGS database shows that there is a 63.61% chance of a major earthquake within 50km of Jefferson County, MT within the next 50 years. The largest earthquake within 30 miles of Jefferson County, MT was a 4.3 Magnitude in 1998.
Jefferson County is at risk for severe storms in both the summer and the winter. In the event of a severe storm information will be posted on the homepage of this website and/or on the Jefferson County Facebookpage.