Marinette County Child Support Agency

Marinette, Wisconsin

The Marinette County Child Support Agency is at 1926 Hall Avenue, Room C223, Marinette, WI 54143. Call the office at (715) 732-7440. It serves Marinette County.

How do I contact this office?

Marinette County Courthouse
1926 Hall Avenue, Room C223
Marinette, WI 54143
Phone
(715) 732-7440
TTY
(877) 209-5209
Hours
Monday to Friday, 8:00 a.m. to 4:30 p.m.
Before you go
The agency invites you to visit the office, email, or call.
Email
childsupport@marinettecountywi.gov
Fax
(715) 732-7446
Official page
Office page

Is this my office?

This office serves Marinette County.

Not your area? See every Wisconsin 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.

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Office details come from the official Wisconsin office listing, checked October 18, 2026. Sunny Child Support is not affiliated with Wisconsin Department of Children and Families, Bureau of Child Support. Spot a mistake? Tell us.