Municipal & County Staff Portal

Ontario County welcomes you to explore the next generation OnCOR designed for both desktop/laptop users and mobile devices. The gallery of special sites will continue to grow to help County and municipal staff.

OnCOR Website
OnCOR Property App
Interested in property? This app lets you explore tax parcels and associated information (local zoning, surveys, assessment, soils, owner history, with Pictometry, Google Street View, and Bing imagery).

A user guide can be found here to help you get started.
Silverlight Property Site
Silverlight Property Site - You can still access this program through 2016, but please be aware that this site will be phase out later in the year due to Microsoft dropping support for the required plugin.

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