ZIP Code 46319

46319 is one of Indiana's ZIP codes, delivering to addresses in Griffith, Lake County.

City: Griffith
County: Lake County
State: Indiana
Prefix: 463xx

Where this code sits

46319 is part of the 463xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Griffith.

Griffith Indiana ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 46319 delivers to without sharing its boundary.

219 Area code 219

ZIP codes nearest 46319

The ZIP codes whose reference points sit closest to 46319.
ZIP code	Distance	Delivers to
ZIP code 46322	2.1 mi	Highland, IN
ZIP code 46408	3.4 mi	Gary, IN
ZIP code 46375	3.5 mi	Schererville, IN
ZIP code 46406	3.8 mi	Gary, IN
ZIP code 46323	4.1 mi	Hammond, IN
ZIP code 46321	4.3 mi	Munster, IN
ZIP code 46410	4.5 mi	Merrillville, IN
ZIP code 46404	4.7 mi	Gary, IN

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 46319, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 46319. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.