Keweenaw County Sheriff's Office

Keweenaw County Sheriff's Office
5105 Fourth Street
Eagle River, MI 49950

Sheriff Curt Pennala

kcso@keweenawcountymi.gov

Emergency: Dial 911

906-337-0528 [Phone: non-emergency]
906-337-4278 [FAX]

Pay Sheriff's Office

Term Expires:
2028 (4-year term)

Staff & Contacts

Sheriff Curt Pennala
sheriff@keweenawcountymi.gov

Undersheriff/Jail Administrator Tonya Mattila
undersheriff@keweenawcountymi.gov

Jeremy Lassila
Sergeant
lassilaj@keweenawcountymi.gov

Darren Jurmu
Corporal
jurmud@keweenawcountymi.gov

Aaron Lassila
Field Services/Deputy
lassilaa@keweenawcountymi.gov

William Olson
Field Services/Deputy
olsonw@keweenawcountymi.gov

Matthew Eberly
Trails Division, Snowmobile/Orv
eberlym@keweenawcountymi.gov

Michael Keranen
Marine Division
kcso@keweenawcountymi.gov

Our Mission

The Office of the Sheriff is the only constitutionally mandated law enforcement agency in the State, and the Sheriff is elected by the people of the County.  This is our mission.

"We are committed to uphold the constitution of the United States and committed to providing the highest level of law enforcement and public safety services to residents and guests of Keweenaw County in a professional, fair and impartial manner."

About Us

The Sheriff's Office is the only law enforcement agency located within the County of Keweenaw. We are committed to all aspects of public safety and we work in partnership with all County based fire and medical agencies. The following are some of the services we provide.

  • Full law enforcement services such as criminal investigations and traffic enforcement.
  • Operate a fully accredited 72-hour lock up facility and provide jail services through contract with neighboring Counties for inmates incarcerated for more than 72 hours.
  • Circuit and District Court security
  • Marine, ORV and Snowmobile divisions
  • Provide public assistance for non-emergency calls such as motorist assists.
  • Sponsor a County wide Sheriff's Off-Road Rescue unit in conjunction with the Ahmeek Fire Department.
  • Provide first responder medical services.  Oversee and license all other County based medical first responder units.
  • Work closely with local schools to provide educational and security support.
  • Sponsor a yearly charity event called "Keweenaw County, No Kid without a Christmas" to provide gifts and clothing for the less fortunate.
  • Sponsor a yearly "Public Safety Day" to facilitate interaction and communication between the public and the law enforcement, fire, medical and road safety agencies that serve them.
  • We are committed to providing mutual support and cooperation with all State and neighboring County law enforcement agencies.

FOIA Request

Request for public record(s). Michigan Freedom of Information Act (FOIA) 1976 PA 442

Employment

The Keweenaw County Sheriff’s Office is accepting applications for a part-time Deputy. We are team-oriented group that is committed to providing the highest level of public safety and law enforcement services to the residents and guest of our County. Qualified applicants must be Michigan Commission on Law Enforcement Standards (MCOLES) Certified or MCOLES licensable by the date of hire. Applications can be picked up in person at the Keweenaw County Sheriff's Office (5105 4th St. Eagle River, MI) or obtained on by clicking here.

Meetings Minutes

Past Meetings

News Item 1

Posted June 27, 2025

Keweenaw County Board of Commissioners Special Meeting on Monday, 6/30/25 at 9:30 a.m.

News Item 2

Posted June 27, 2025

Zoning Board of Appeals Regular Meeting Canceled

News Item 3

Posted June 20, 2025

Short Term Rental Requirements for Keweenaw County

News Item 4

Posted June 2, 2025

Planning Commission Members

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