St. Dorothy Parochial School opened its doors under the direction of the Benedictine Sisters in 1960. The original school building contained five classrooms, grades three through seven.
In 1962, an eighth grade was added and in 1965 a second grade was added. The first grade was added in 1973 and St. Dorothy School became an elementary school of eight grades.
With the completion of the Parish Center in August of 1987, the administration moved into the new building. This allowed for the renovation of the old office area into a learning center/computer lab and additional student restrooms.
Two new classrooms were built in 1987. A Kindergarten and an After School Day Care Program were also added. The Anyta Doyle Building, a multi-purpose facility, was built in 1993 to accommodate the expansion of the Before/After School Day Care Program. Attached to the Anyta Doyle Building is a sheltered lunch facility, which can also accommodate outside assemblies.
In the 2015-16 school year, a TK was added. The next year our TK room was fully renovated to give our littlest students the best learning environment.