The Equitable Building is a high-rise located in Des Moines, Iowa. It is named after the insurance company Equitable of Iowa, which originally owned the building, and is located along Locust Street in the downtown area of the city. The 19-story Equitable Building, at 604 Locust St. in Des Moines, was completed in 1924, and standing at 318 ft (97m), for 49 years was the tallest building in Iowa.