Abbreviate Avenue, Boulevard and Street only with a numbered address. Spell them out and capitalize when part of a formal street name without a number.

  • 1600 Pennsylvania Ave. / Pennsylvania Avenue

When abbreviating post office in an address, use periods.

  • P.O. Box 332

Address Order

Campus addresses should begin with the name of the office or department, followed by University of Colorado Boulder, followed by the campus box number, followed by Boulder, CO. Use the nine-digit zip code, which includes the campus box number.

  • Sentence form:
    Send inquiries to the Office of Admissions, University of Colorado Boulder, 552 UCB, Boulder, CO 80309-0552.
  • Stacked address:

    Office of the Registrar
    University of Colorado Boulder
    20 UCB
    Boulder, CO 80309-0020

Building Names

In addresses, do not include the building name and room number unless it is likely that people will drop by to hand deliver or pick up printed materials.

  • Please submit your materials to the Office of Financial Aid, Regent 175, University of Colorado Boulder, 556 UCB, Boulder, CO 80309-0556.

Campus Box Numbers

All campus addresses must begin with the campus box number immediately followed by a three- letter code for the campus or university affiliate.

UCB Boulder campus FTZ Anschutz Medical Campus
UCD Denver Campus SYS System administration
UCS Colorado Springs campus UCA University administration
(offices on Grant Street in Denver)
HSC Health Sciences Center
(9th Street and Colorado Boulevard)