About Exhibition Maryland State Fair 2026 August will be held from 27th - 30th August 2026 at Maryland State Fairgrounds in Maryland City, Maryland, United States. This is an annual state fair held in Maryland. It is the largest state fair in the Mid-Atlantic region, and one of the oldest in the United States. It is a great place to spend a day with family and friends. Likewise, it is a fun and exciting event that celebrates the best of Maryland agriculture and culture.