Round Top Texas ZIP Codes
Round Top holds 2 ZIP codes, all inside one county and one postal prefix.
Every ZIP code in Round Top
| ZIP code | County |
|---|---|
| 78954 | Fayette County |
| 78961 | Fayette 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Round Top codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Round Top. 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 Round Top ZIP code begins 789. Those first three digits identify the sectional center facility that processes mail for this part of Texas. Statewide that range covers 28 ZIP codes, so Round Top accounts for 7% of it.
Every Texas ZIP prefix and the region it covers →
Area codes covering Round Top
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 Round Top occupies.
Round Top Texas area codes in full →
Where Round Top's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Round Top
| City | Distance | ZIP codes |
|---|---|---|
| Carmine Texas ZIP codes | 5.9 mi | 1 ZIP code |
| Burton Texas ZIP codes | 10 mi | 1 ZIP code |
| Fayetteville Texas ZIP codes | 11 mi | 1 ZIP code |
| Industry Texas ZIP codes | 14 mi | 1 ZIP code |
| La Grange Texas ZIP codes | 15 mi | 1 ZIP code |
| Ellinger Texas ZIP codes | 16 mi | 1 ZIP code |
| Giddings Texas ZIP codes | 16 mi | 1 ZIP code |
| Brenham Texas ZIP codes | 19 mi | 2 ZIP codes |
Straight-line distance between place reference points, not driving distance.