Is it possible to find a working iPhone 5 for less than $100?

I know it's a dumb question but I don't keep up with these things. I kind of wanted an iPhone and it doesn't have to be the latest but I'd like it to be able to run the new apps and the newest operating system…

No. I don't think so. But there are some Chinese duplicates with low quality.

You may be able to find one, but it most likely will be broken, iCloud Locked, or have it's IMEI/MEID blacklisted which means that it's stolen.

Personally, I wouldn't buy a phone for that cheap unless I knew that it was ready to activate on a carrier. You can try your luck, but you most likely won't find something that cheap that's in good working condition.

Just 5C free on contract. That way its brand new.