On Ontario Street in Canandaigua, the Ontario County Information Services serves as a hub for historical records and government operations. Established in 1789, Ontario County originally encompassed a vast area of western New York State, and its early history is retained in the county's records. The county's boundaries have since changed, with fourteen separate counties now existing in the area. The Ontario County Information Services also houses a museum, preserving the history of the region.

The Information Technology Department within Ontario County Information Services plays a supporting role to all county departments and programs, providing essential services such as computer, printing, and telecommunications. The department is also responsible for the county's GIS systems, including aerial photography and associated applications. Additionally, the department offers custom mapping services and provides support for the online OnCor property mapping system, serving the needs of the local community and government agencies in the Finger Lakes region.