Wiktionary
n. The address (of a person or business) to which mail is delivered, as distinct from the actual street address.
Usage examples of "postal address".
As I made a note of the correct postal address, I could hear a radio playing.
The name of the account was Seismic Services, also in Calgary, and sharing the same postal address as CanuCo.
That gave her the postal address, the identity of the clergy designated to that parish and the telephone number of the incumbent, Beth worked her way down the list with the aid of the hotel room's telephone.
Her manner of enquiring after a trifling ailment gave one the impression that she was more concerned with the fortunes of the malady than with oneself, and when one got rid of a cold one felt that she almost expected to be given its postal address.
Stromer spent two days trying to locate him, writing to his postal address and traveling to restaurants and café.
This could be anywhere in the world, specified by geographical coordinates or postal address as precisely as she could narrow it down.