Geolocation service can be configured from the Integration tab. Go to WooCommerce, select Settings, and then click Integration.
WooCommerce allows shop owners to automatically geolocate customers and display tax rates and shipping methods specific to a customer’s location. To determine the correct location for a customer, as of version 3.9+, WooCommerce uses integration with MaxMind Geolocation. Use this optional setting if you would like to geolocate your customers.