If you need to purchase your bait any local fishing bait and tackle store worth their salt will have earthworms, most often these bait store sale two types of worms. The wigglers or red worms are similar to the backyard variety found here in the south.

Do gas stations sell fishing worms?

Check the convenience stores & gas stations around popular fishing ares. They will have worms for sure.

Can you sell worms to bait shops?

In addition to retailing your worms, you can wholesale them to stores. They're found in the sporting goods department of some Walmart stores, and usually bought from local suppliers. Bait shops are the most obvious wholesale market. You can also try selling to pet stores that carry worm-eating animals.