Find the last 4 digits (ZIP+4) for an address in 46403

ZIP 46403, Gary, IN is filled in. Just type the street address.

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ZIP Code 46403 – Gary, IN

Gary, Indiana · Lake County · Central time

ZIP code46403
CityGary
StateIndiana
CountyLake CountyPorter County
Population10,929
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area9.24 sq mi
Center (lat, long)41.6105, -87.2582

Area codes in this area

574

These are the area codes that most often serve ZIP 46403 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

46405 Lake Station · 2.5 mi46401 Gary · 3.5 mi46402 Gary · 4.1 mi46368 Portage · 4.3 mi46407 Gary · 4.3 mi46409 Gary · 5.5 mi46404 Gary · 6.3 mi46342 Hobart · 6.4 mi

About ZIP 46403

ZIP code 46403 is assigned to Gary, Indiana. It crosses 2 counties; most of its land is in Lake County. Its Census area covers about 9.24 square miles of land. The closest neighboring ZIP is 46405 (Lake Station), about 2.5 miles away.

Every address in 46403 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources