How to write a US address correct order?
2157 Green Mill Road
P.O. Box 99
Finksburg, Maryland
USA 21048-0099
This format
Full name Balaram Chaudhary
Address.................................
Zip code ...........................................
City ......................................
State/Region....................
Country: United States
Comments
The first address you give is strange. Usually there would be a street address or a post office box, but not both.
The correct order is
Full name
Street address [2157 Green Mill Rd.]
Apartment number, if any [Apt. 99?]
City, state [Finksburg MD]
Zip code [21048-0099] (but only the first five digits are required)
Country [USA]
Area code