Elgin Texas ZIP Codes

Elgin holds a single ZIP code.

Every ZIP code in Elgin

The complete list of Elgin, Texas ZIP codes with the county each falls in.
ZIP code	County
78621	Bastrop County

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Elgin codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Elgin. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

How these codes cluster

Every Elgin ZIP code begins 786. Those first three digits identify the sectional center facility that processes mail for this part of Texas. Statewide that range covers 75 ZIP codes, so Elgin accounts for 1% of it.

Every Texas ZIP prefix and the region it covers →

Area codes covering Elgin

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Elgin occupies.

Elgin Texas area codes in full →

Where Elgin's ZIP codes sit

Each point is one Elgin ZIP code, plotted from its record coordinates.

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

Cities near Elgin

The closest places to Elgin with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Coupland Texas ZIP codes	7.1 mi	1 ZIP code
Manor Texas ZIP codes	9.9 mi	1 ZIP code
Pflugerville Texas ZIP codes	14 mi	2 ZIP codes
Taylor Texas ZIP codes	15 mi	1 ZIP code
Hutto Texas ZIP codes	16 mi	1 ZIP code
Thrall Texas ZIP codes	17 mi	1 ZIP code
Bastrop Texas ZIP codes	17 mi	1 ZIP code
Round Rock Texas ZIP codes	20 mi	6 ZIP codes

Straight-line distance between place reference points, not driving distance.