Yes, although the expiration date is set because eventually the popcorn kernels lose moisture and go dry inside, resulting in stale or easily burned popcorn.

CAN expired popcorn make you sick?

The Risk of Consuming Expired Popcorn

In the worst-case scenario, expired dry kernels won't pop as they should if you keep them too long, and popcorn flavor will get worse. However, they won't make you sick after consumption.

Does unpopped popcorn really go bad?

Unpopped popcorn: Popcorn kernels keep indefinitely with the right, airtight storage, but try to pop and eat kernels within six months to a year of getting them. Over time, they'll lose their ability to pop as consistently, and they may have a slightly less fluffy texture than when you first got them.