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Is it possible (using QGIS) to calculate the population size from a raster layer within a certain area?

For example:

I have a population density raster layer (100x100 grid cell) for South Africa, and I want to determine what the population of a certain district is.

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You can do this using the Raster zonal statistics tool. You must create a new vector layer with polygons representing your area. Use your raster and vector data as inputs to this tool.

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  • Thanks for the feedback. Is this plugin available with QGIS 3? I can't seem to find it.
    – JohnGIS
    Commented Jun 26, 2018 at 12:35
  • @JohnGIS I use QGIS 3.2. This is a tool, not a plugin. If you use QGIS 2.18 you can try this plugin: docs.qgis.org/2.18/en/docs/user_manual/plugins/… Commented Jun 26, 2018 at 12:39
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    In 3.0 you'll find it within the processing toolbox
    – ndawson
    Commented Jun 26, 2018 at 19:45

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