I am trying to make a map showing which zip codes are served by which hospitals. There are five hospitals and each can serve one or more zip codes. I'd like to show each zip code with a dots of different colors to represent the different hospitals serving that zip.
I'm trying to assign colour circles to a map with zip codes. Each zip code has hospitals assigned to it and I would like the hospitals to be represented as colour circles on the assigned zip codes. So, for instance if a zip code has three hospitals I would like the hospitals to be represented by three different colour circles each.
The hospitals do not have addresses since they are assigned to zip codes in which they do not reside. So, I used the zip codes to get the Latitude and Longitudes. In most cases the hospitals have similar latitude and Longitude because they were assigned primarily by zip code.
I've tried layer properties and categorized symbol but it just assigns one color circle per zip code. Do you know what I'm doing wrong?