Caldwell Texas ZIP Codes
Caldwell holds a single ZIP code.
Every ZIP code in Caldwell
| ZIP code | County |
|---|---|
| 77836 | Burleson 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Caldwell codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Caldwell. 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 Caldwell ZIP code begins 778. Those first three digits identify the sectional center facility that processes mail for this part of Texas. Statewide that range covers 47 ZIP codes, so Caldwell accounts for 2% of it.
Every Texas ZIP prefix and the region it covers →
Area codes covering Caldwell
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 Caldwell occupies.
Caldwell Texas area codes in full →
Where Caldwell's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Caldwell
| City | Distance | ZIP codes |
|---|---|---|
| Snook Texas ZIP codes | 14 mi | 1 ZIP code |
| Milano Texas ZIP codes | 15 mi | 1 ZIP code |
| Somerville Texas ZIP codes | 16 mi | 1 ZIP code |
| Lexington Texas ZIP codes | 20 mi | 1 ZIP code |
| Rockdale Texas ZIP codes | 20 mi | 1 ZIP code |
| Bryan Texas ZIP codes | 21 mi | 7 ZIP codes |
| College Station Texas ZIP codes | 24 mi | 6 ZIP codes |
| Burton Texas ZIP codes | 25 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.