Have you tried any of the Tableau tools for polygons?
I'm not sure if these will let you zoom in and out (I haven't played with them that much), but they are great if the maps/images are static.
Here is a great tutorial on how to Create Tableau Maps from Shapefiles. I was able to follow it and create the attached excel file and workbook. Now that it is in Tableau you can blend in your data to map it based on the municipality name. Here's more information on how to do that: Mapping and filtering data with custom polygon maps | Tableau Public.
Let me know if this is what you are looking for.
Thank you so much for your help! However, it says that the connection to the files does not work. As if there is limited access to the file you posted and I am unable to open it...
Aunque veo que tu post es de hace dos años
La solucion es que hagas un .csv con 4 columnas como sigue
1 id de la ruta de puntos de tu poligono
2 nombre de la region (zona, depto, area o lo que sea)
3 lt (latitud)
el detalle esta en repetir para cada zona el primer registro del kml en el inicio del poligono
If you have the shapefile for the boundaries, you need to extract/unzip them first.
Then, open tableau, select 'Connect to new data source', select Spatial file, then select your file.shp that you just extracted/unzipped.
If your shapefile is legit, Tableau will automatically create the polygons in a way that Tableau can use them by creating a new field called 'GEOMETRY'.
Go to your new sheet, double click geometry and you will see your shapes.
Select Analysis up top and uncheck 'Aggregate Measures'.
And you should be good from there.
THAT BEING SAID, when I download and extract your shapefile, there's something corrupted in the file itself. Where did you actually obtain this?