The Delaware County GIS Office maintains the digital cadastral base map for all county offices.  It is our goal to be a county-wide service-driven resource, assisting in developing or providing spatial solutions which enable our citizens and local government partners to accomplish their business purposes.


3/19/2020 – Delaware County Board of Commissioners declare a state of emergency in response to COVID-19 pandemic

12/1/2020 – GIS Office is Closed to walk-in map requests. Please send request with the map information you would like to see to

1/28/2021 – Parcel Geometry Edits end for the month, QAQC begins

1/30/2021 – Auditor’s GIS Website updated with new parcel geometry

2/1/2021 – Spatial data on Delaware County GIS Data Hub and FTP site updated

2/2/2021 – Monthly Maintenance

Auditor’s GIS Website Update — The Delaware County Auditor’s GIS Website was recently updated to the https protocol.  You will have to cleanse your history if you frequent the website.  If your office has an IT department they may have to allow in through the firewall.


145 N. Union St.
Delaware, Ohio 43015

(740) 833-2070


(740) 833-2069



8:30 am to 4:30 pm

By Appointment Only until further notice