Child Support Services Division, Billings Office
Billings, Montana · Region 3
The Child Support Services Division, Billings Office is at 1500 Poly Drive, Suite 200, Billings, MT 59102. Call Child Support Services Division (CSSD), Montana Department of Public Health and Human Services at (800) 346-5437, the statewide line. It serves Big Horn, Carbon, Carter, Custer, Dawson, Fallon, Garfield, McCone, Musselshell, Powder River, Prairie, Richland, Rosebud, Treasure, Wibaux, and Yellowstone counties.
How do I contact this office?
1500 Poly Drive, Suite 200Billings, MT 59102
Mail: CSSD Central Mail Unit, PO Box 202943, Helena, MT 59620
- 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.
- childsupport@mt.gov
- Fax
- (406) 655-5545
- Official page
- Office page
Mail documents to the CSSD Central Mail Unit, not to this address.
Is this my office?
This office serves Big Horn, Carbon, Carter, Custer, Dawson, Fallon, Garfield, McCone, Musselshell, Powder River, Prairie, Richland, Rosebud, Treasure, Wibaux, and Yellowstone 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:
- Pay online, by phone, or by mail: see every way to pay child support in Montana.
- Ask about your case by phone at (800) 346-5437.
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
Other child support offices near Billings
- Child Support Services Division, Helena Intergovernmental Office Helena · 173 miles away
- Child Support Services Division, Great Falls Office Great Falls · 176 miles away
- Child Support Services Division, Butte Office Butte · 192 miles away
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.