ZIP codes in Wabash County
8 ZIPs touch Wabash County, Illinois. The blue dashed line is the county border; orange ZIPs reach into it.
8
ZIP codes
3
cross the county line
13,738
people in these ZIPs
102
counties in IL
Most people
Wabash County ZIP list
More counties in Illinois
- St. Clair County37
- Stark County10
- Stephenson County19
- Tazewell County23
- Union County13
- Vermilion County27
- Warren County14
- Washington County13
- Wayne County20
- White County12
- Whiteside County15
- Will County46
Questions people actually ask
How many ZIP codes are in Wabash County, Illinois?
8 ZIP codes reach into Wabash County, including 1 PO Box or single-address ZIPs placed by the town they serve. 3 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Wabash County has the most people?
62863 (Mount Carmel) has about 9,379 residents, the most of any ZIP touching Wabash County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Wabash County and another county?
Yes. ZIP codes follow mail routes, not county lines. Rows marked with a percentage show how much of that ZIP’s land is in Wabash County. For one address, pin the exact spot on the ZIP finder to see its county.
Where does this list come from?
ZIP areas and their county overlaps come from the Census Bureau’s 2020 ZIP Code Tabulation Area to county relationship file. PO Box ZIPs have no area, so each is placed in the county of the ZIP area nearest the town it serves.
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Updated 2026-11-10 · Where the data comes from