As of 2003, the town had an estimated population of 5,720 and a density of 279.02 persons per km². The total area was 20.50 km².
Shichijo means "Seven Castles" in Japanese. The town derived its name from the seven castles that surrounded the area. One of the most famous onsens in the Kumamoto-area, Kunakokujo, is constructed in the shape of castle.
Shichijo is also home to award-winning rice and melons. In the center of town is the Melon Dome, which is a farmer's market located under a structure shaped like melons.