Ability to overwrite the default geolocation dimensions in Analytics

As far as I know, there isn’t a way to overwrite the defaults, but if you’re collecting location data you can put it into a prop/evar and use it instead. 

I agree with ​@MandyGeorge, there is no way to overwrite the locations (as these are all processed by Adobe after the data has been collected)… while you might be able to work with Adobe support to set up Vista rules, this comes at a cost, and probably isn’t worth it.

Collecting your own location information into your own dimension is probably the best thing you can do… and if you want to avoid confusion, you can curate the dimensions available to your users in the Admin Console, and remove access to Adobe’s default dimensions, or you can leave them, and tell people to use them for comparison only, that then should use the custom location information collected in “Dimension X” instead.

Product Profile:

If like me, you are using “auto-include”, you will have to take that off, then you can remove the location dimensions:

It should be noted, that if you are using curated Dimensions, then if Adobe adds anything new, you will have to manually add it to your curated list to be able to see and use it.