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
The following are dates upon
which holidays will be observed by
County offices in the Courthouse:
Friday, December 31 2021 New Year's Day Monday, January 17 Martin Luther King Jr. Day Friday, February 11 Lincoln's Birthday Monday, February 21 Presidents' Day Friday, April 15 Good Friday Monday, May 30 Memorial Day Monday, June 20 Juneteenth Day Monday, July 4 Independence Day Monday, September 5 Labor Day Monday, October 10 Columbus Day Tuesday, November 8 General Election Day** Friday, November 11 Veterans' Day Thursday, November 24 Thanksgiving Friday, November 25 Day Following Thanksgiving Friday, December 23 Christmas Eve Day Monday, December 26 Christmas Holiday
State's Attorney will be open for
Election purposes only
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.)