Check My Address for WooCommerce makes it easy for your customers to check if their address is deliverable.
Have a look at the test page to see how the plugin looks and function frontend.
Insert the Address Checker at any page with a shortcode,
The shortcode arguments are:
position – center (default), left, right - (optional)
border – true (default), false - (optional)
Google Maps API
Before it is possible to start validating delivery addresses at the Menu, you have to get your Google Maps API Key.