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Historic Barns Inventory Project
Come view the new Historic Barns Inventory Project! Read on...
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Ontario County welcomes you to explore the next generation OnCOR (Ontario County Online Resources) designed for both desktop/laptop users and mobile. The image links below will take you into the site. If your are using a mobile device such as a tablet or smart phone, we recommend using the Mobile OnCor site.
OnCOR Desktop Website OnCOR Mobile Website

In order ensure the most interactive experience, please make sure you are on the latest version of
Microsoft Silverlight and are using either an Internet Explorer or Mozilla Firefox browser. Google CHROME will no longer support Silverlight as of January 2015.

Note!: Windows XP Users - If you are using the older Internet Explorer 8 browser, we recommend trying Mozilla Firefox instead.

OnCor is a cooperative project between the Ontario County Planning Department, Real Property Tax, Information Services/GIS Program, and the County Clerks Office. The program leverages the resources of these individual departments and delivers them through one common web enabled interface.

This project currently provides integration of County’s Land Record information (assessment data, deeds, surveys, aerial photography), and will evolve to address the needs of the Ontario County residents and visitors. You will find many tools for finding information, including dynamic access to other data such as Pictometry, Bing and Google Maps. Look for specialized sites in the near future such as recreation and community-focused applications. The Silverlight Viewer user guide can be found here, and the Mobile Viewer user guide can be found here.

Contact Us
Sheri Norton
GIS Coordinator

70 Ontario Street
Canandaigua, NY 14424
Ph: (585) 396-4500
Info Advanced (Contact Us)