Suffolk, New York

County Seat: Riverhead · Population: 1,525,920

Find contact information for Suffolk government offices in New York. The county seat is Riverhead. 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 Suffolk

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Local Services

Title abstractors, process servers & more for Suffolk

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Frequently Asked Questions

How do I contact the Suffolk Assessor?

The Suffolk 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 Suffolk?

Property tax payments in Suffolk 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 Suffolk?

Property deeds, liens, and recorded documents are maintained by the Suffolk 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 Suffolk?

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

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