Wanting to help out U.S. based users of The Events Calendar, I tracked down a place to set the default country.
wp-content/plugins/the-events-calendar/src/Tribe/Default_Values.php
I changed this:
public function country() {
return array( '','');
}
to this:
public function country() {
return array( '','United States');
}
United States is preselected, and a selection of states is generated. All other countries are still available, should they be needed.
It appears other defaults could be set as well, but I didn’t try it.
This file will need to be re-modified when updates are applied, as it is not in a location that can be accomplished with a template override.