Rock County Child Support Services
Janesville, Wisconsin
The Rock County Child Support Services is at 51 South Main Street, Floor 3R, Janesville, WI 53545. Call the office at (608) 757-5700. It serves Rock County.
How do I contact this office?
Rock County Courthouse51 South Main Street, Floor 3R
Janesville, WI 53545
- Phone
- (608) 757-5700
- TTY
- (877) 209-5209
- Hours
- Monday to Friday, 8:00 a.m. to 4:00 p.m.
- Before you go
- Services are also offered by phone and internet.
- Fax
- (608) 757-5710
- Official page
- Office page
Is this my office?
This office serves Rock 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:
- Check your case and payments online in Child Support Online Services.
- Pay online, by phone, or by mail: see every way to pay child support in Wisconsin.
- Ask about your case by phone at (608) 757-5700.
Going in person? Read "Before you go" above, and call first if you can.
What can I do at this office?
- Drop box outside the office
Other child support offices near Janesville
- Jefferson County Child Support Agency Jefferson · 25 miles away
- Walworth County Child Support Agency Elkhorn · 27 miles away
- Green County Child Support Agency Monroe · 31 miles away
More help with Wisconsin child support
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.