Good news: when you log to your account your location will automatically show your location along with new and upcoming volunteer opportunities listed within a 20-mile radius! Make sure to register/log in to your account to freely search the site!
Entering your zip code or address will produce more accurate results, but you can also enter the name of your city to perform a broader search.
If you want to change that radius, you can do so by clicking on the options in the navigation bar that says "More Filters". From there select the distance you would like to expand or contract to.
The opportunity recommendations that appear on your volunteer profile are also generated based on the location you entered on your profile.