As rao said this feature is not enabled in DEs. Unfortunately it also can't be enabled by the support. But you can access parts of it with a workaround even in DEs.
Here is what you'll get from the support:
As discussed over the phone I informed you that unfortunately there is
no way where we can enable the Maps & locations in developer edition,
we also uses developer edition and as per standard salesforce edition
limitation we also don't have the access for Maps & locations and
there is no way where we can activate this for Dev edition.
I apologize as I couldn’t provide you with a resolution to this issue
because it is not yet supported by the salesforce edition. So I am
closing this case with your permission.
This is very sad, since it looks like something developer-relevant when you read it's description:
"Maps and Location services uses Google Maps to display maps on
standard address fields, enable creation of Visualforce maps, and
helps users enter new addresses with autocomplete."
What I can't understand is why this feature is disabled in DE. However looking closer to what is covered by the feature, it consists of two parts:
A) on Desktop you get maps below standard address fields.
B) in the Salesforce1 mobile app you get auto-completions and features for the text-fields - which you don't get for the desktop right now.
Therfore you can use the URL like this:
You have to replace
eu5 by your instance. After the
center= controlls the center of your map. It consists of street, city, zip-code, country separated by
%2C. Spaces needs to be replaced by
zoom= you control the zoom level and with
markers= you can add colored markers into the map with the same syntax as
This perfectly works in developer-editions, too.