I have a set of ZCTA from census Bureau's website in a csv file. I want to convert this into geographic coordinates to show them on map in QGIS. I know how to convert places name into longitude and latitude using geocode. I was wondering how can I do the same thing using ZCTA. Any help will be appreciated.
You can obtain Shapefiles for legal boundaries of each year including their ZCTA from here, then join it with the data you have based on the ZCTA (or manually select a custom subset).