Jefferson, Illinois
County Seat: Mount Vernon · Population: 37,684
Find contact information for Jefferson government offices in Illinois. The county seat is Mount Vernon. Below you'll find phone numbers, addresses, and websites for the assessor, treasurer, recorder, clerk, and other county departments.
Assessor
Recorder
Treasurer
Illinois SOS
Frequently Asked Questions
How do I contact the Jefferson Assessor?
The Jefferson Assessor's office handles property valuations and assessments. Find their phone number and address in the Property Records section above.
Where do I pay property taxes in Jefferson?
Property tax payments are typically handled by the Jefferson Treasurer's office. Check the Property Records section for contact information and online payment options.
How do I get a copy of a deed in Jefferson?
Property deeds and records are maintained by the Jefferson Recorder or Clerk's office. You can usually request copies in person, by mail, or through their online portal.
What are the Jefferson office hours?
Office hours vary by department. Check the specific office listing above for hours, or call ahead to confirm. Many offices are closed on weekends and holidays.
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