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.

Featured News & Events

Upcoming Announcement:

Please note that the Auditors GIS Website will be replaced very soon.  During this transition we will maintain both.  Please be patient during this time. 

Also, we are currently upgrading our Geometry (Parcel Shapes) data base, therefore parcels in the new website will not contain changes made since September.  We will be systematically updating our new database until the time that we can shutdown the current website in favor of the new GIS Website for Delaware County. 

Hyperlinks on the GIS Links or the GIS Data Hub to access a test website to get the look and feel for how the new website will function.   

June 2026 Significant Dates:

June 19th, 2026 Delaware County Auditors Office and the GIS Office will be closed for Juneteenth.

June 26th, 2026 – Tentatively the final day for Geometry updates for the month by the GIS Department. 

June 27th, 2026 – Geographic data updated on the Auditor’s GIS Website.

June 29th, 2026 – Geographic data available for download on FTP site and on GIS Data Hub.

June 30th, 2025 – Delaware County GIS Department monthly server and database maintenance.


Contact

145 N. Union St.
Delaware, Ohio 43015

Phone
(740) 833-2070

Email:

delco-gis@co.delaware.oh.us

Fax
(740) 833-2069

Hours

Monday-Friday

8:30 am to 4:30 pm