Rock Island, Illinois

County Seat: Rock Island · Population: 142,815

Find contact information for Rock Island government offices in Illinois. The county seat is Rock Island. 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 Rock Island

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Local Services

Title abstractors, process servers & more for Rock Island

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Frequently Asked Questions

How do I contact the Rock Island Assessor?

The Rock Island 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 Rock Island?

Property tax payments in Rock Island 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 Rock Island?

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

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

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