Show your current location in Maps on Mac
Maps uses your location to help you find directions from where you are to where you want to go, and shows you businesses, restaurants and other places of interest that are nearby.
Allow Maps to use your location
If you see a message that Maps can’t use your current location, you need to turn on Location Services in System Preferences.
On your Mac, choose Apple menu
> System Preferences, then click Security and Privacy.Click the lock icon
to unlock it, then enter an administrator name and password.Click Privacy, select Location Services in the list on the left, select Enable Location Services, then select Maps.
Show your location on the map
In the Maps app on your Mac, click the Current Location button 
in the toolbar (or use the Touch Bar).
A blue dot appears on the map at your location.
Turn off your current location
You can turn off Location Services for all apps on your Mac or just for Maps.
On your Mac, choose Apple menu
> System Preferences, then click Security and Privacy.Click the lock icon
to unlock it, then enter an administrator name and password.Click Privacy, select Location Services in the list on the left, then unselect Maps. To turn off Location Services for all apps, unselect Enable Location Services.
For more information about Location Services and privacy, see Manage which apps can detect your Mac location.