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Child Support Services – County Office (Units)
The primary contact for dealing with your own child support case is your local county Child Support Enforcement Unit. If you do not have that contact information, use the County Unit Lookup that is available on this web site.


Colorado Family Support Registry (FSR)

  • Payment Location:
    Family Support Registry
    P.O. Box 2171
    Denver, CO 80201-2171
  • FSR Customer Service Department
    Metro Denver: 303-299-9123
    Nationwide: 1-800-374-6558
    E-mail: CDHS_FSRCustomerService@state.co.us
    Hours: 8 am – 6 pm, Mountain Time
  • FSR Employer Outreach Department
    Metro Denver: 303-297-2849
    Nationwide: 1-800-696-1468
    E-mail: CDHS_FSREmployerServices@state.co.us
    Hours: 8 am – 5 pm, Mountain Time
  • State Directory of New Hires – New Hire Reporting
    P.O. Box 2920
    Denver CO 80201-2920
    Fax: 303-297-2595
    Website: Colorado State Directory of New Hires

Child Support Services – State Office
1575 Sherman Street, 5th floor
Denver CO 80203
Phone: 303-866-4300
Fax: 303-866-4360


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