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Sinton Texas ZIP Codes

Sinton holds a single ZIP code.

Every ZIP code in Sinton

The complete list of Sinton, Texas ZIP codes with the county each falls in.
ZIP codeCounty
78387San Patricio 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Sinton codes above are listed without a column we would have to invent.

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

How these codes cluster

Every Sinton ZIP code begins 783. Those first three digits identify the sectional center facility that processes mail for this part of Texas. Statewide that range covers 49 ZIP codes, so Sinton accounts for 2% of it.

Every Texas ZIP prefix and the region it covers →

Area codes covering Sinton

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

Sinton Texas area codes in full →

Where Sinton's ZIP codes sit

Each point is one Sinton ZIP code, plotted from its record coordinates.
  • Reference points and footprint
  • Not an official NANPA boundary
  • Not a USPS delivery area

Cities near Sinton

The closest places to Sinton with their own ZIP code list, nearest first.
CityDistanceZIP codes
Taft Texas ZIP codes7.7 mi1 ZIP code
Odem Texas ZIP codes8.2 mi1 ZIP code
Portland Texas ZIP codes15 mi1 ZIP code
Gregory Texas ZIP codes15 mi1 ZIP code
Woodsboro Texas ZIP codes18 mi1 ZIP code
Bayside Texas ZIP codes18 mi1 ZIP code
Mathis Texas ZIP codes20 mi1 ZIP code
Robstown Texas ZIP codes20 mi1 ZIP code

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