ZIP Code 78617

78617 is one of Texas's ZIP codes, delivering to addresses in Del Valle, Travis County.

City: Del Valle
County: Travis County
State: Texas
Prefix: 786xx

Where this code sits

78617 is part of the 786xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Del Valle.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 78617 delivers to without sharing its boundary.

ZIP codes nearest 78617

The ZIP codes whose reference points sit closest to 78617.
ZIP code	Distance	Delivers to
ZIP code 78719	3.2 mi	Austin, TX
ZIP code 78742	5.2 mi	Austin, TX
ZIP code 78725	5.7 mi	Austin, TX
ZIP code 78741	7.6 mi	Austin, TX
ZIP code 78721	8.0 mi	Austin, TX
ZIP code 78744	8.0 mi	Austin, TX
ZIP code 78724	8.5 mi	Austin, TX
ZIP code 78747	8.6 mi	Austin, TX

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 78617, plotted from its record coordinates.

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

Scope ZIP code 78617. 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.