Potomac, IL ZIP Codes, Coordinates & Counties
Potomac, Illinois has 1 ZIP code in Vermilion county. The approximate center of Potomac is 40.305, -87.803. Potomac has about 6,289 known street addresses.
ZIP codes in Potomac, IL
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 61865 | Vermilion | 40.305 | -87.803 |
Counties Potomac spans
Vermilion
Most common streets in Potomac
State, Wilson, Grant, Church, North, West, May, Lane, College, South
Frequently asked questions
What ZIP codes are in Potomac, IL?
Potomac, Illinois has 1 ZIP code, ranging from 61865 to 61865. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Potomac, IL in?
Potomac is in Vermilion county.
What are the latitude and longitude of Potomac, IL?
The approximate center of Potomac, Illinois is latitude 40.305, longitude -87.803. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Potomac, IL have?
Potomac has 1 ZIP code.
How many addresses are in Potomac, IL?
Potomac, Illinois has about 6,289 known street addresses in the sthan.io US address database.
What are the most common streets in Potomac, IL?
Some of the most common street names in Potomac are State, Wilson, Grant, Church, North, West.
What cities are near Potomac, IL?
Cities near Potomac include Henning (5 mi), Armstrong (6 mi), Collison (6 mi), Penfield (8 mi), Rossville (9 mi).
Cities near Potomac
Henning, IL (5 mi) Armstrong, IL (6 mi) Collison, IL (6 mi) Penfield, IL (8 mi) Rossville, IL (9 mi) Alvin, IL (10 mi) Rankin, IL (10 mi) Gifford, IL (11 mi)
Need this for any US address, in code?
Get the ZIP code, county, and coordinates for any US address through the sthan.io API. Free 100 requests/month, no credit card required.
View the API →Last updated: June 2026 · Data: sthan.io US address database