Duncan Child Support Office

Duncan, Oklahoma

The Duncan Child Support Office is at 813 W. Main St, Duncan, OK 73533. Call Oklahoma Human Services, Child Support Services at (405) 522-2273, the statewide line. It serves Cotton, Garvin, Jefferson, and Stephens counties.

How do I contact this office?

813 W. Main St
Duncan, OK 73533
Mail: P.O. Box 1527, Duncan, OK 73534
Phone
(405) 522-2273 (statewide line)
TTY
Dial 711
Hours
By appointment, Monday to Friday, 8:00 a.m. to 5:00 p.m.
Before you go
By appointment. Request one by emailing the office; appointments can also be held by phone, audio, or video conference.
Email
OCSS.Contact.Duncan@okdhs.org
Fax
(405) 669-4105
Official page
Office page

The office page lists only the statewide Child Support Services lines (OKC 405 522 2273, Tulsa 918 295 3500).

Is this my office?

This office serves Cotton, Garvin, Jefferson, and Stephens counties.

Not your area? See every Oklahoma 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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More help with Oklahoma child support

Office details come from the official Oklahoma office listing, checked October 18, 2026. Sunny Child Support is not affiliated with Oklahoma Human Services, Child Support Services. Spot a mistake? Tell us.