Welcome to Delaware County's GIS Website

The Delaware County Auditor's GIS Office was established in 1994 by the Delaware County Auditor. Since then, the division has become the recipient of numerous international, national, and local awards for its exemplary and innovative use of GIS technology in property taxation as well as many other applications.

The Delaware County Auditor's GIS Office's team of five full time and 1-2 part time GIS professionals are responsible for creating and maintaining the county’s comprehensive GIS dataset consisting of over 90 data layers including but not limited to parcels, road centerline and right of ways, political boundaries such as townships, municipalities, schools, tax districts, various land marks, rail roads, and voting precincts in an interactive map server application (IMS).

Since its inception, Delaware County Auditor's GIS Office's rich datasets are used by a variety of county and city jurisdictions and in numerous applications such as: appraisal, planning, economic development, E-911, board of elections, code compliance, utilities, engineering, water & waste water mapping to name a few. The GIS staff assists many of these departments with their GIS needs and with developing a variety of cutting edge applications.