If it's electronic, has absolutely caked it and needs to be disposed of...
If you're recycling a mobile phone, RE:MOBILE also has a database of locations (there are more locations if it's only a phone).
Before you head on your way, check the facility's website or call them to find out if they'll accept your item, and what the cost may be to leave it with them.
While this map was exhausting to create, it's by no means exhaustive. If you're not seeing an option near you, please do conduct your own research, as many local dumps and refuse transfer stations accept e-waste for recycling.
If you know of something that should be on the map, please let me know.