Following up on our earlier discussion, you can also use "wpt_field_options" filter, to find the select option for "United States" and add its duplicate on top:
The above code can be added in active theme's "functions.php" file and you'll replace "test" with the actual "Field name" set for the relevant custom field, in the settings.
( example screenshot: hidden link )
note: To make this function work for more than one select fields, you can update the line: