Oswego, New York

County Seat: Oswego · Population: 117,525

Find contact information for Oswego government offices in New York. The county seat is Oswego. Below you'll find phone numbers, addresses, and websites for the assessor, treasurer, recorder, clerk, and other county departments.

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Tax Due Dates

Property tax deadlines & email reminders for Oswego

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Local Services

Title abstractors, process servers & more for Oswego

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Frequently Asked Questions

How do I contact the Oswego Assessor?

The Oswego Assessor's office handles property valuations, assessments, and exemptions. Find their phone number and address in the Property Records section above.

Where do I pay property taxes in Oswego?

Property tax payments in Oswego are handled by the Treasurer's office. Check the listing above for contact information, mailing address, and online payment options.

How do I get a copy of a deed in Oswego?

Property deeds, liens, and recorded documents are maintained by the Oswego Recorder's office. You can typically request copies in person, by mail, or through their online portal if available.

Where do I get a marriage license in Oswego?

Marriage licenses in Oswego are issued by the County Clerk's office. Contact them for requirements, fees, and appointment availability.

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