Child Support Services Division, Great Falls Office

Great Falls, Montana · Region 2

The Child Support Services Division, Great Falls Office is at 201 1st Street S, Suite 1A, Great Falls, MT 59405. Call Child Support Services Division (CSSD), Montana Department of Public Health and Human Services at (800) 346-5437, the statewide line. It serves Blaine, Cascade, Chouteau, Daniels, Glacier, Hill, Liberty, Petroleum, Phillips, Pondera, Ravalli, Roosevelt, Sheridan, Teton, Toole, and Valley counties.

How do I contact this office?

201 1st Street S, Suite 1A
Great Falls, MT 59405
Mail: CSSD Central Mail Unit, PO Box 202943, Helena, MT 59620
Get directions Call (800) 346-5437
Phone
(800) 346-5437 (statewide line)
Before you go
An enrollment for services may be dropped off at any Child Support Services office regardless of where you live in Montana.
Email
childsupport@mt.gov
Fax
(406) 454-3106
Official page
Office page

Mail documents to the CSSD Central Mail Unit, not to this address.

Is this my office?

This office serves Blaine, Cascade, Chouteau, Daniels, Glacier, Hill, Liberty, Petroleum, Phillips, Pondera, Ravalli, Roosevelt, Sheridan, Teton, Toole, and Valley counties.

Not your area? See every Montana child support office.

Can I handle this without going in?

Often, yes. Many requests don't need a visit:

Going in person? Read "Before you go" above, and call first if you can.

What can I do at this office?

  • Enrollment for services drop off

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More help with Montana child support

Office details come from the official Montana office listing, checked October 18, 2026. Sunny Child Support is not affiliated with Child Support Services Division (CSSD), Montana Department of Public Health and Human Services. Spot a mistake? Tell us.