If we have incorrectly identified your country, here's how to correct it:
Unlike most other account settings, Twitter does not store the country setting in association with your account; instead, a browser cookie stores and updates the country. Therefore, changes to your country setting won’t save across browsers or computers.
When you access Twitter, your browser passes along an IP address with the request, which may be, for example, the IP of your computer, your office, or your Internet Service Provider (ISP). We use that IP address to select the initial Country setting for that browser.
Your profile location is part of your public account profile and is completely optional. Learn More.
The country setting is stored only in your browser, and may affect the content we are able to display. Learn More.