In which county is ZIP code 46401 located?

ZIP 46401 is listed under Lake, IN.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 46401: Gary, IN

ZIP: 46401

County: Lake

Coordinates: 41.59070, -87.31990

ZIP Type: Standard

Time Zone: Central Time (CT)

Explore detailed information for ZIP code 46401 in Gary, IN. We include verified county details for Lake plus key geographic references used for mapping and logistics.

Primary City	Gary
ZIP Code	46401
County	Lake
State	IN
Latitude / Longitude	41.59070, -87.31990
ZIP Type	Standard
Time Zone	Central Time (CT)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 46401 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 46401 are listed as 41.59070 / -87.31990, useful for GPS and service checks in and around Gary, IN.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 46401 for mail delivery and general location reference in Lake, IN.

This ZIP may extend beyond the city core into nearby communities within Lake.

Related ZIP Codes (Nearby)

Explore other postal codes near Gary within IN.

Frequently Asked Questions

What is the primary city for ZIP code 46401?

The primary city for this ZIP code is Gary, located in IN.

In which county is 46401 located?

ZIP code 46401 is situated within Lake, IN.

What are the coordinates for 46401?

The approximate center point is 41.59070 (Latitude) and -87.31990 (Longitude).

Is ZIP code 46401 active?

This page lists ZIP 46401 as Listed based on the latest refresh date shown above.

Does ZIP 46401 cover multiple areas?

Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.

Methodology & Data Notes

How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.

Page updated: 2026-01-08