What kind of snake
Thank you for your question. The snake in your photograph is a brown snake, scientific name is Storeria dekayi. It is a non-venomous species.
Typical length of adults is 9 - 12 inches. Maximum length is approximately 18 inches. They are common in many eastern and southeastern states. They are found in a variety of habitats. They are commonly found by homeowners under mulch, pine straw and leaf litter.
They feed on insects, insect larvae, slugs and snails.
If you are interested in learning more about the species of snakes in your area, here's an excellent reference:
Gibbons, Whit. (2017). Snakes Of The Eastern United States. Athens: University of Georgia Press.
I hope this answers your question, and thank you for contacting Ask an Expert.