Welcome to Trenton Indian Service Area

Trenton Indian Service Area

Our service area consists of three North Dakota counties, Williams, Divide and  McKenzie and three Montana counties, Richland, Roosevelt and Sheridan. : We offer direct services to all Native American people in the service area. We do not deny services for any Native American that presents to the clinic with verification of enrollment to a federally recognized tribe. We currently provide Purchased and Referred Care for only Turtle Mountain Band of Chippewa’s residing in the service area.


The October TISA Board Meeting which was postponed from October 13, 2020 , has been re-scheduled to Monday , October 26, 2020 beginning at 5:00P.M.

Trenton Indian Service Area's Community Clinic in partnership with the Upper Missouri Health Unit, ND National Guard, and Williams County Emergency Management will be hosing a COVID-19 Drive Thru Testing Event on Wednesday, October 21st from 4:00pm to 6:00pm at the Trenton Lake. 

It is essential to pre-register for the event.

COVID -19 Testing & Pre-Registration

Please watch for the signs and drive cautiously as you enter testing line.

Pre-Registering is encouraged. You can go to: https://testreg.nd.gov

To have a COVID-19 test done at the Trenton Community Clinic please call ahead to make an appointment. Please call 774-0461 if you have any questions.


For more information visit COVID-19 visit



Remember to fill out your census form!  If you are a TISA client, we can HELP you fill out the form. Please call 701-572-8316 to make an appointment with Heather or TJ.   Future TISA funding depends on you!



Trenton Indian Service Area is recognized as a Governed Nation under Census.

This means if you or any member in the household believe to descend from or, are an enrolled member of a Native American tribe and live in the Service Area you would put down T.I.S.A or, Trenton Indian Service Area in BOX #7  on the Census questionnaire.

Government programs rely on census information to direct resources. Being counted helps ensure funding is disbursed to specific communities and programs in need.

        visit 2020census.gov today.


 Trenton Community Clinic page can be found on top or you can call them at 701.774.0416