The ‘Countries’ dimension reports the country where the hit originated from. This dimension is useful to help determine what the most popular countries visitors originate from when visiting your site. You could use this data to focus on marketing efforts in these countries, or make sure your site experience is optimal in countries that have different primary languages.
This dimension references lookup rules internal to Adobe. The lookup value is based on the IP address sent with the hit. Adobe partners with Digital Element to maintain lookups between IP address and country. This dimension works out of the box for all implementations.
Dimension items include countries all over the world. Example values include
"United Kingdom", or
Since this dimension is based on IP address, some scenarios can show a difference between reported location and actual location: