A comma is used to set off individual elements of an address except for zip codes: "Mail your remittance to: 1340 Circle Drive, Laguna Hills, California 92653." If prepositions are used between the elements of the address, commas are not needed: "The White House is located at 1600 Pennsylvania Avenue in Washington, D.C. 20233."
Practice What You've Learned
One or more commas have been omitted from the fictional addresses found in the following sentences. Insert one or more commas by clicking the space between the words where you desire a comma to be.