PIATT COUNTY, ILLINOIS - OFFICIAL SITE

• Home Page
• Departments
• Assessor
• Circuit Clerk
• County Clerk & Recorder
• Highway Dept.
• Treasurer
• Sheriff
• Zoning
• Animal Control
• Dept. Listing
• Government
• County Board
• Bids, RFP's, RFI's, RFQ's
• All Hazards Mitigation Plan
• Comprehensive Plan
• Financial Reports
• 9-1-1 / Emergency Communications
• Elections
• Elections Information
• Elections Results
• Employment
• Freedom of Information Act

• Home Page
Departments
• Assessor
• Circuit Clerk
• County Clerk & Recorder
• Highway Dept.
• Treasurer
• Sheriff
• Zoning
• Animal Control
• Dept. Listing
• Government
• County Board
• Bids, RFP's, RFI's, RFQ's
• All Hazards Mitigation Plan
• Comprehensive Plan
• Financial Reports
• 9-1-1 / Emergency Communications
Elections
• Elections Information
• Elections Results
• Employment
• Freedom of Information Act

Welcome to Piatt County, Illinois

QUICK LINKS

• 2025 Election Information
• Vote By Mail
• Pay Traffic Tickets
• Employment Opportunities
• Meeting Agendas
• Piatt County Tax Search
• Online Real Estate Tax Payments

Map to Piatt County Courthouse

Courthouse Hours:

Monday thru Friday: 8:30 AM to 4:30 PM Closed Saturdays, Sundays and Holidays

• 2025 Courthouse Holidays

  The following are dates upon which holidays will be observed by County offices in the Courthouse:

  Wednesday, January 1	New Year's Day
  Monday, January 20	Martin Luther King Jr. Day
  Wednesday, February 12	Lincoln's Birthday
  Monday, February 17	Presidents' Day
  Friday, April 18	Good Friday
  Monday, May 26	Memorial Day
  Thursday, June 19	Juneteenth Day
  Friday, July 4	Independence Day
  Monday, September 1	Labor Day
  Monday, October 13	Columbus/Indigenous Peoples' Day
  Tuesday, November 11	Veterans' Day
  Thursday, November 27	Thanksgiving
  Friday, November 28	Day Following Thanksgiving
  Wednesday, December 24	Christmas Eve
  Thursday, December 25	Christmas Holiday

Piatt County Facts

Piatt County, named for James A. Piatt, Sr., was established January 27, 1841, from territory taken from Macon County. The County is 34 miles long, containing 279,680 acres. Approximately 91% of this area is cropland, 3% pasture, 1% woodland and 5% other (municipalities, waterways, highways). Elevations vary from 650 to 800 feet above sea level.

The County Seat is Monticello. On July 1, 1837, James A. Piatt filed a plat of Monticello in the old Courthouse in Decatur. On July 4, 1837, a barbecue was held and lots were sold in the city named for the Virginia home of Thomas Jefferson.

(All information herein is presented for informational purposes only, and should not be relied upon as the basis for official or legal action. Information is subject to change without notice.)

Piatt County Courthouse 101 W Washington Monticello, IL 61856 Courthouse Hours Monday-Friday 8:30AM-4:30PM

Piatt County Courthouse 101 W Washington Monticello, IL 61856 Courthouse Hours Monday-Friday 8:30AM-4:30PM

Piatt County Courthouse 101 W Washington Monticello, IL 61856 Courthouse Hours Monday-Friday 8:30AM-4:30PM