Boulder County government offices closed Thursday, Nov. 28, and Friday, Nov. 29, for the Thanksgiving holiday.

Marriage/Civil Union Name Change

The Recording Division physical office is closed to the public. Online/phone services are available Monday-Thursday from 7:30 a.m.–5 p.m. Limited in-person services are available by appointment.

Name Change after Marriage/Civil Union

A name change may be completed after the marriage or civil union license is recorded at the Recording Division.

If you live in Colorado, you will need to obtain a certified copy of your recorded marriage or civil union license to change your name. Some states will accept the original recorded license. Please check with your local office. Boulder County residents – please see Requesting Copies – Boulder County.

Your name must be changed with Social Security first, if applicable, then the Driver’s License office. If you have a passport to change, please visit Getting or Renewing a U.S. Passport | USAGov.

Social Security Card

Provide the following to change a name on a Social Security card:

  • Original marriage/civil union license
  • ID

Visit a Social Security office to change a name on a Social Security card:

  • Louisville – 480 W Dahlia Street
  • Denver – 1500 Champa Street, 2nd Floor
  • Find other locations

Driver’s License

Visit a Department of Motor Vehicle office after visiting Social Security to change a name on a driver’s license:

  • Boulder – 2850 Iris Avenue
    • Phone – 303-442-3006
  • Longmont – 917 South Main Street
    • Phone – 303-776-4073
  • Find other locations

Contact Us

Recording Division

303-413-7770
303-413-7775 (Fax)
recording@bouldercounty.gov

7:30 a.m. to 5 p.m.
Monday-Thursday
Closed Fridays

Location

Boulder: 1750 33rd St.
Map and Directions Boulder Location

Longmont: 529 Coffman St.
Map and Directions Longmont Location

Lafayette: 1755 S. Public Road
Map and Directions Lafayette Location

Mailing Address

1750 33rd St., Suite 201
Boulder, CO 80301