Welcome to Piatt County, Illinois
Map to Piatt County Courthouse
Monday thru Friday: 8:30 AM to 4:30 PM
Closed Saturdays, Sundays and Holidays
2023 Courthouse Holidays
The following are dates upon which holidays will be observed by County offices in the Courthouse:
Monday, January 2 New Year's Day (observed) Monday, January 16 Martin Luther King Jr. Day Monday, February 13 Lincoln's Birthday Monday, February 20 Presidents' Day Friday, April 7 Good Friday Monday, May 29 Memorial Day Monday, June 19 Juneteenth Day Tuesday, July 4 Independence Day Monday, September 4 Labor Day Monday, October 9 Columbus Day Friday, November 10 Veterans' Day Thursday, November 23 Thanksgiving Friday, November 24 Day Following Thanksgiving Monday, December 25 Christmas Eve (observed) Tuesday, December 26 Christmas Holiday (observed)
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.)