What does it mean "but it only shows English."?

In english language? You want it translated into every language?

Are place names not always in the right language of the visitors, I assume he lives in the same place he lives so language should be the right automatic? Or is your database filled with translated placenames? Then find a better one with only the original names and your problem is solved.

You mean auto change the language of your site based on users location? Google translate API used to be the best way to do this, but all the plugins, apps, etc that used it are no more. Google shut down that api.

When I hear Geocoding I usually think google maps though (getting a longitude/latitude from an address or search).