geocode

Article

21 sections

Contents

Classification
System
Encode and decode
Systems of standard names
Hierarchical naming
Systems of regular grids
Hierarchical grids
Name-and-grid systems
Shortening grid-based codes by context
Cataloged examples
In use, general scope
In use, alternative address
In use, postal codes
In use, telephony and radio
In use, others
Historical or less widely used
Other examples
Other standards
See also
References
External links

A geocode is a code that represents a geographic entity (location or object). It is a unique identifier of the entity, to distinguish it from others of its geocode system. In general the geocode is a human-readable and short identifier.

Typical geocodes (in bold) and entities represented by it: Country code and subdivision code. Polygon of the administrative boundaries of a country or a subdivision. The main examples are ISO codes: ISO 3166-1 alpha-2 code (e.g. AF for Afghanistan or BR for Brazil), and its subdivision conventions, such as subdivision codes (e.g. AF-GHO for Ghor province) or subdivision codes (e.g. BR-AM for Amazonas state). DGG cell ID. Identifier of a cell of a discrete global grid: a Geohash code (e.g. ~0.023km2 cell 6vd23gq at Brazil's centroid) or a Plus Code (e.g. ~0.0002km2 cell 58Q8XXXX+XX within the same area). Postal code. Polygon of a postal area: a CEP code (e.g. 70040 represents a Brazilian's central area for postal distribution).