Prairie County Sheriff's Office

Prairie County Sheriff's Office PCSO The Prairie County Sheriff’s office is the chief law enforcement agency in Prairie County. The rural fire department is staffed by trained volunteers.

It is comprised of three full-time sworn officers and contracts with Fallon County (Baker), Montana for dispatch services, and Dawson County, Montana, for jail services. The sheriff’s office provides general law enforcement, court security, civil service, and search and rescue operations for the citizens of Prairie County in a service area which is comprised of approximately 1730 square miles. Add

itionally, the agency contracts with the Town of Terry for law enforcement services for that jurisdiction. The Prairie County Sheriff also serves as a Deputy Coroner, as well as the Fire Warden for rural Prairie County. The Sheriff’s office also provides many services including concealed weapon permits and drug and violence education.

06/08/2026

Due to the size of the Prairie County courtroom, there are only 30 seats available for those interested in attending the hearing on June 12th. Due to fire code, there is NO standing room in the courtroom and NO standing in the hallway.

Be advised there is NO weapons, Cellphones or recording devices allowed in the courtroom. Please refer to district 7 court rules for more information.
Thank you.
Sheriff Keifer Lewis

06/04/2026

There have been several Diesel fuel thefts lately. If you own a semi or a large diesel storage tank, it is suggested that you start locking them.

05/13/2026

Just letting everyone know that there will be a planned Siren Test on Saturday, May 16th, at 12:30pm.

04/14/2026

MDU just called and they have rescheduled their planned Terry power outage for tomorrow, Wednesday, April 15th, from 7pm to 10pm.

***last update on Noah***About 3 miles out. Should be here in 20 mins.***UPDATE ON NOAH***Noah is on Old Hwy 10 coming i...
04/06/2026

***last update on Noah***
About 3 miles out. Should be here in 20 mins.

***UPDATE ON NOAH***

Noah is on Old Hwy 10 coming into Terry. Time will still be about 6pm. EMS will stage at 4 corners.

Noah Coughlan is getting close to the Prairie County line. EMS will be meeting him at the exit into Terry to es**rt him into town. This should be around 6pm tonight. Feel free to line Spring Street from Four Corners to the Kempton. I will update this when I know a more accurate time of arrival.

The Sheriffs Office will be monitoring his progress throughout the day.

Thanks
Sheriff Lewis

02/17/2026

If you found a white rim with tire and hub still attached along old hwy 10, please let us know. The owner is looking for it.

Thank you

01/12/2026

RESERVE DEPUTY meeting is scheduled for the 15th of January at 6pm. This will be at the prairie county courthouse courtroom at 217 Park street.

Looking forward to seeing everyone.

12/02/2025

RESERVE DEPUTY APPLICATIONS NOW BEING ACCEPTED.

The Prairie County Sheriff's Office is excited to announce that Tim Therrien has accepted the position of Reserve Commander with the Sheriff’s Office. We are blessed to have Tim back in our law enforcement community and willing to run the reserve program. Tim’s vast amount of knowledge and experience will make the PCSO Reserve program one of the best in Eastern Montana. If you would like to be part of something that has a true benefit to the community, do not hesitate to take advantage of this opportunity.
What does it take to be a reserve deputy you ask? Here it is in a nutshell.
Basic eligibility
• Age: At least 18 years old.
• Citizenship: Citizen of the United States (or permanent resident for non-peace officer roles).
• Education: High school diploma or GED.
• License: Valid Montana driver's license.
• Background: No felony convictions or serious misdemeanor convictions that would prohibit firearm possession or police duties.
• Moral character: Must be of good moral character.
• Physical condition: Must be in good physical condition.
• Residency: May need to have lived in the county for at least six months before appointment.
Training requirements
• Basic training: Complete a minimum of 88 hours of basic training within two years of appointment.
• Training content: The 88-hour training includes topics such as:
o Introduction and orientation
o Police ethics and professionalism
o Criminal law
o Laws of arrest
o Criminal evidence
o Patrol procedures
o Crime investigations
• Additional training: After the initial 88 hours, reserve deputies must complete additional in-service and field training as required by their local department.
• Fi****ms: The basic training also includes fi****ms qualification.
• Ethics: Must subscribe to the code of ethics as required by the Montana Department of Justice.
Other requirements
• Background check: Must be fingerprinted and subject to a background check.
• Oral interview: Must successfully complete an oral interview with the appointing authority.
• POST certification: Must be in good standing with the Montana Public Safety Officer Standards and Training (POST) Council.
• Agency policies: Must adhere to all policies and procedures of the sheriff's office they are joining.
All reserve officers are required to provide their own firearm and duty belt that meets agency policy. The agency will provide 1 duty shirt and a reserve deputy badge.
The recruitment window is now open and we are going to have our first meeting January 15th, 2026 at 6PM at the courthouse.
If you have any questions, do not hesitate to call the office at 406-635-5738.

Respectfully,
Sheriff Keifer Lewis
Reserve Commander Tim Therrien

Address

217 W Park Street/PO Box 126
Terry, MT
59349

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+14066355738

Website

Alerts

Be the first to know and let us send you an email when Prairie County Sheriff's Office posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Organization

Send a message to Prairie County Sheriff's Office:

Shortcuts

Share

Category