[1] Its 35 acres (14 ha) area included 69 contributing buildings.

[1] The district's (and Circleville's) center is the Pickaway County Courthouse.

Circleville's original layout was designed to have streets radiating away from it, and it was to be enclosed by two concentric circular streets.

By 1860, the "circle was squared" by subsequent development and alterations to property lines.

[2] The district has numerous examples of Late Victorian architecture, including of Queen Anne and Italianate styles.