How To Write Address Washington Dc . Please note that postal mail is the slowest method for contacting me. What is barack obama's fan mail address? Address 1615 H ST NW (Northwest) , WASHINGTON, DC 200620001, USA from dc.postcodebase.com Here you can find information for my washington, dc office. I have lived and worked in the district. Washington, dc 20024 point of contact at vif is: