Sioux City Child Support Services
Sioux City, Iowa
The Sioux City Child Support Services is at 600 4th St, Suite 770, Sioux City, IA 51101. Call the office at (712) 255-2749. It serves Buena Vista, Cherokee, Ida, Monona, Plymouth, and Woodbury counties.
How do I contact this office?
600 4th St, Suite 770Sioux City, IA 51101
Mail: P.O. Box 9131, Des Moines, IA 50306-9131
- Phone
- (712) 255-2749
- Hours
- Monday to Friday, 8:00 a.m. to 4:30 p.m.
- csrusc@hhs.iowa.gov
- Fax
- (515) 564-4142
- Official page
- Office page
Is this my office?
This office serves Buena Vista, Cherokee, Ida, Monona, Plymouth, and Woodbury counties.
Not your area? See every Iowa 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 Iowa Child Support customer website.
- Pay online, by phone, or by mail: see every way to pay child support in Iowa.
- Ask about your case by phone at (712) 255-2749.
What can I do at this office?
- Applications for child support services
Other child support offices near Sioux City
- Spencer Child Support Services Spencer · 78 miles away
- Carroll Child Support Services Carroll · 84 miles away
- Council Bluffs Child Support Services Council Bluffs · 90 miles away
More help with Iowa child support
Office details come from the official Iowa office listing, checked October 18, 2026. Sunny Child Support is not affiliated with Iowa HHS Child Support Services. Spot a mistake? Tell us.