Monticello, IL ZIP Codes, Coordinates & Counties
Monticello, Illinois has 1 ZIP code in Piatt county. The approximate center of Monticello is 40.027, -88.579. Monticello has about 47,621 known street addresses.
ZIP codes in Monticello, IL
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 61856 | Piatt | 40.027 | -88.579 |
Counties Monticello spans
Piatt
Most common streets in Monticello
Market, Washington, State, High, Marion, Grant, Bond, Union, Hamilton, Wilson
Frequently asked questions
What ZIP codes are in Monticello, IL?
Monticello, Illinois has 1 ZIP code, ranging from 61856 to 61856. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Monticello, IL in?
Monticello is in Piatt county.
What are the latitude and longitude of Monticello, IL?
The approximate center of Monticello, Illinois is latitude 40.027, longitude -88.579. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Monticello, IL have?
Monticello has 1 ZIP code.
How many addresses are in Monticello, IL?
Monticello, Illinois has about 47,621 known street addresses in the sthan.io US address database.
What are the most common streets in Monticello, IL?
Some of the most common street names in Monticello are Market, Washington, State, High, Marion, Grant.
What cities are near Monticello, IL?
Cities near Monticello include White Heath (7 mi), Bement (8 mi), Milmine (8 mi), Cisco (8 mi), De Land (8 mi).
Cities near Monticello
White Heath, IL (7 mi) Bement, IL (8 mi) Milmine, IL (8 mi) Cisco, IL (8 mi) De Land, IL (8 mi) Ivesdale, IL (9 mi) Seymour, IL (10 mi) Weldon, IL (11 mi)
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View the API →Last updated: June 2026 · Data: sthan.io US address database