Harmon, IL ZIP Codes, Coordinates & Counties
Harmon, Illinois has 1 ZIP code in Lee county. The approximate center of Harmon is 41.688, -89.564. Harmon has about 5,857 known street addresses.
ZIP codes in Harmon, IL
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 61042 | Lee | 41.688 | -89.564 |
Counties Harmon spans
Lee
Most common streets in Harmon
1st, Harmon, Arch, Eakle, 2nd, Sterling, Main, 3rd, Grove, Ryan
Frequently asked questions
What ZIP codes are in Harmon, IL?
Harmon, Illinois has 1 ZIP code, ranging from 61042 to 61042. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Harmon, IL in?
Harmon is in Lee county.
What are the latitude and longitude of Harmon, IL?
The approximate center of Harmon, Illinois is latitude 41.688, longitude -89.564. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Harmon, IL have?
Harmon has 1 ZIP code.
How many addresses are in Harmon, IL?
Harmon, Illinois has about 5,857 known street addresses in the sthan.io US address database.
What are the most common streets in Harmon, IL?
Some of the most common street names in Harmon are 1st, Harmon, Arch, Eakle, 2nd, Sterling.
What cities are near Harmon, IL?
Cities near Harmon include Deer Grove (8 mi), Rock Falls (8 mi), Eldena (10 mi), Amboy (11 mi), Dixon (11 mi).
Cities near Harmon
Deer Grove, IL (8 mi) Rock Falls, IL (8 mi) Eldena, IL (10 mi) Amboy, IL (11 mi) Dixon, IL (11 mi) Ohio, IL (11 mi) Walnut, IL (11 mi) Galt, IL (12 mi)
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View the API →Last updated: June 2026 · Data: sthan.io US address database