|Indicates a rough number of citizens in a given place.|
|Used on these elements|
|Tools for this tag|
The population=<number> key can be used to indicate a rough number of citizens in a given place.
Whenever possible, it is recommended to also add the key source:population=* to the same object, having as its value the name of the institution that counted the population and the year when the population was counted. This way other people can easily verify and update these values. Also, for a more accurate designation of the population counting date, you can add a key population:date=* in format.
The population figure should be a stable number if possible. Typically, it includes residents but excludes non-residents who may be visiting the place for business or leisure. It should not reflect a temporary event, such as a weather-related evacuation.
- source:population=IBGE 2013 (i.e. IBGE counted the current population of this place on 2013)
Some renderers use this key to show more populated cities more prominently, such as by labeling them with larger text, displaying them at lower zoom levels, or prioritizing them over nearby less populated places.  Search engines can also use this key to rank search results.
- wikidata=* allows data consumers to look up the population on Wikidata. The linked item may contain one or more population (P1082) statements, including historical population statements. Data consumers should use the statement with preferred rank or the statement that has the most recent point in time (P585) qualifier.
- census:population=* is a nonstandard tag that was introduced in an import and remains common on place features in the United States. It should no longer be added to new features, but data consumers may use it as a fallback if population=* is absent and Wikidata lookups are infeasible.
- Chinese mappers started using china_population=* instead of population=* to fix a rendering issue for places in China. This is tagging for the renderer and is generally strongly disapproved of. While china_population=* exists, data consumers wishing to work with population data for Chinese places may need to consider this tag before inspecting population=*, because the latter may now include false data.