The King William County School Board began consideration of a new elementary school in the fall of 1986 based on the county’s rapid growth. Several committees were formed to establish objectives, a philosophy, and physical characteristics of the new facility.

Acquinton Elementary School is built behind Hamilton-Holmes Middle School at the intersection of Routes 30 and 629. It is named for the Indian word Acquinton which means “land between two rivers”. Acquinton is the name of the creek which serves as a boundary for the Magisterial District and is located near the school site.

The groundbreaking ceremony for Acquinton Elementary School was held on June 8, 1988, and the school opened in the fall of 1989. Initially, the school housed Pre-K through second grades with the third grade being added in the summer of 1992. A new addition built in 1995 allowed the school to then include grades four and five. In January of 2003 a newly built primary school, Cool Spring Elementary, began to house all students in grades pre-k through second grade. Students in grades three through five remained at Acquinton Elementary.