The list of 189 countries (without regions) which are supported by Paypal. Paypal supports 190 countries but I didn't find code for one country named "Democratic Republic of the Congo (CD)".

To show ONLY Paypal countries in country list remove all previous countries in SQL, database of ubercart (uc_countries), through phpMyAdmin, then import the file to phpMyAdmin. Remove the extension "_.txt" before you proceed.