What type of snake is black with yellow stripes?

According to FCPS.edu, the most common black snake with yellow stripes is the eastern garter snake. This snake has a broad range and is found throughout most of North America, especially in the Southeast.

Typical specimens are 18 to 26 inches long, although some may reach up to 49 inches in length. Three longitudinal stripes run down the bodies of most eastern garter snakes. The snake is similar in appearance to the ribbon snake, although not as slender. Garter snakes generally make their homes in hillside, meadow, woodland or marsh areas and prefer habitats near a permanent source of water, like a stream, lake, pond or even a ditch.