Merrillville, IN ZIP Codes
Merrillville, Indiana has 3 ZIP codes: 2 for street addresses ( and ) and 1 for PO boxes ().
Your street decides which one you use.
Which Merrillville ZIP code is my address in?
Street ranges from the Census Bureau, 2026. PO box and organization ZIP codes are not found by street. A new street may be missing: address not found?
Merrillville ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
46411 has no area on the map: it is a PO box or single-organization ZIP code. Dashed line: Merrillville town limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
All Merrillville ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 46307 | street delivery; mail may be addressed to Crown Point Crown Point Annex |
| 46410 | street delivery Merrillville |
| 46411 | PO boxes at the Merrillville post office Merrillville |
ZIP codes from nearby towns that reach into Merrillville
- 46342, mailing town Hobart, covers 5 percent of Merrillville
Why your mail may say Merrillville when you live outside it
Merrillville ZIP codes also cover Ross Township, Center Township and Winfield Township, so a letter addressed to Merrillville can go to a home outside the town limits.
The reverse happens too: parts of Merrillville use 46342, which mails under a neighboring town's name.
A ZIP code does not set your city, school district or tax. Lake County property records show which city you are in.
Merrillville ZIP code questions
What is the main ZIP code for Merrillville?
46410, the ZIP code of the main Merrillville post office at 303 W 80th Pl.
Which Merrillville ZIP codes are for PO boxes only?
46411. Mail to it goes to boxes at the post office, not to street addresses.
What county is Merrillville in?
Lake County.
ZIP codes for towns near Merrillville
More towns near Merrillville: Tinley Park, Oak Lawn, Michigan City, Orland Park, Chicago, Cicero, Berwyn, Oak Park, Woodridge.
Sources and last checked
USPS ZIP Locale Detail (October 1, 2026), GeoNames (CC BY 4.0), U.S. Census Bureau, HUD-USPS crosswalk.
Checked October 20, 2026. Sources · How we build our lists · Corrections