ZIP Code 78630

78630 is one of Texas's ZIP codes, delivering to addresses in Cedar Park, Williamson County.

City: Cedar Park
County: Williamson County
State: Texas
Prefix: 786xx

Where this code sits

78630 is part of the 786xx range, the group of codes handled by one mail processing centre. Cedar Park is served by 2 ZIP codes in total; the full list, with the county each falls in, is on the Cedar Park page.

Cedar Park Texas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 78630 delivers to without sharing its boundary.

ZIP codes nearest 78630

The ZIP codes whose reference points sit closest to 78630.
ZIP code	Distance	Delivers to
ZIP code 78613	0.0 mi	Cedar Park, TX
ZIP code 78717	4.4 mi	Austin, TX
ZIP code 78729	4.8 mi	Austin, TX
ZIP code 78726	5.2 mi	Austin, TX
ZIP code 78646	5.4 mi	Leander, TX
ZIP code 78641	5.8 mi	Leander, TX
ZIP code 78750	5.9 mi	Austin, TX
ZIP code 78759	8.1 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 78630, plotted from its record coordinates.

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

Scope ZIP code 78630. 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.