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A '''geocode''' is a [[code]] that represents a geographic entity ([[___location]] or [[Geographical feature|object]]). It is a [[unique identifier]] of the entity, to distinguish it from others in a [[finite set]] of geographic entities. 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. <br />The main examples are ISO codes: [[ISO 3166-1 alpha-2]] code (e.g. '''<code>AF</code>''' for [[Afghanistan]] or '''<code>BR</code>''' for [[Brazil]]), and its subdivision conventions, such as [[ISO 3166-2:AF|{{mono|1=AF}} subdivision codes]] (e.g. '''<code>AF-GHO</code>''' for [[Ghor province]]) or [[ISO 3166-2:BR|{{mono|1=BR}} subdivision codes]] (e.g. '''<code>BR-AM</code>''' for [[Amazonas (Brazilian state)|Amazonas state]]).
* ''DGG cell ID''. Identifier of a cell of a [[discrete global grid]]: a [[Geohash]] code (e.g. ~0.023{{nbsp}}km<sup>2</sup> cell '''<code>6vd23gq</code>''' at Brazil's [[Geographical centre|centroid]]) or a [[Open Location Code|Plus Code]] (e.g. ~0.0002{{nbsp}}km<sup>2</sup> cell '''<code>58Q8XXXX+XX</code>''' within the same area).
* ''Postal code''. Polygon of a [[postal code|postal area]]: a [[Código de Endereçamento Postal|CEP]] code (e.g. '''<code>70040</code>''' represents a Brazilian's central area for postal distribution).
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