What is w prefix for populated?

There isn't a standard prefix "w" used to indicate a populated area. The most common prefixes for populated areas are:

* Pop: Short for "populated" - often used in data tables and charts

* Urban: Indicates a city or densely populated area.

* Rural: Indicates a sparsely populated area, often with agriculture.

* Metro: Indicates a metropolitan area, a major city with its surrounding suburbs.

If you are encountering "w" as a prefix for populated, please provide more context so I can understand what it might represent.