LaSalle, Illinois

County Seat: Ottawa · Population: 108,669

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

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Illinois SOS

Tax Due Dates

Property tax deadlines & email reminders for LaSalle

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Local Services

Title abstractors, process servers & more for LaSalle

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Frequently Asked Questions

How do I contact the LaSalle Assessor?

The LaSalle 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 LaSalle?

Property tax payments in LaSalle 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 LaSalle?

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

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

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