I have a list of geographic locators and a boundary file. In QGIS, is there any way merging them together to create a lookup saying this boundary contains these locators? Not the number the actual locator i.e. postcode, easting/northing.
You can use the Spatial Tools 'Analysts Tools' in QGIS
This Guide 'Tutorial: Spatial Analysis - Points in Polygon ' is a good example how to do 'Points in a Polygon'