These two searches will help you find local community reference coordinates for places in the USA, with quick links in the search results to broadcast station data.
For more information on AM and FM radio broadcasting, please visit the Audio Division website, and the Broadcast Radio Links page.
For more information on Television broadcasting, please visit the Video Division website.
FCC > Media Bureau > Audio Division, (202) 418-2700, and Video Division, (202) 418-1600.