ZIP codes in Warren County
12 ZIPs touch Warren County, Indiana. The blue dashed line is the county border; orange ZIPs reach into it.
12
ZIP codes
8
cross the county line
99,448
people in these ZIPs
92
counties in IN
Most people
Warren County ZIP list
More counties in Indiana
- Tipton County11
- Union County6
- Vanderburgh County35
- Vermillion County10
- Vigo County23
- Wabash County16
- Warrick County13
- Washington County12
- Wayne County20
- Wells County17
- White County18
- Whitley County10
Questions people actually ask
How many ZIP codes are in Warren County, Indiana?
12 ZIP codes reach into Warren County, including 1 PO Box or single-address ZIPs placed by the town they serve. 8 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Warren County has the most people?
47906 (West Lafayette) has about 75,198 residents, the most of any ZIP touching Warren County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Warren 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 Warren 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