An address is a collection of information, presented in a mostly fixed format, used for describing the location of a building, apartment, or other structure or a plot of land, generally using political boundaries and street names as references, along with other identifiers such as house or apartment numbers. Some addresses also contain special codes to aid routing of mail and packages, such as a ZIP code.

Functions

Addresses have several functions:

1. Providing a means of physically locating a building, especially in a city where there are many buildings and streets,
2. Identifying buildings as the end points of a postal system,
3. A social function: someone's address can have a profound effect on their social standing,
4. As parameters in statistics collection, especially in census-taking or the insurance industry.

History

Until the advent of modern postal systems, most houses and buildings were not numbered. Streets may have been named for landmarks, such as a city gate or market, or for the professions of their inhabitants. In many cities in Asia, most minor streets were never named. This is still the case today in much of Japan. When postal systems were introduced, it became necessary to number buildings to aid in mail delivery.

Current addressing schemes