Looks like @TeamYouTube answered your question, but we still want to congratulate you on 100 subs! 
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Looks like @TeamYouTube answered your question, but we still want to congratulate you on 100 subs! 