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
A lot of polls of the type "who do you trust more among A/B/C" or "who do you like best among A/B/C" are simply name recognition surveys, where the votes for each option are roughly proportional to how many people have heard of it.
If you have a well-known brand, you can always run such polls with your brand alongside lesser-known options, and use that as "data" to show how much people like you...
