Karnes City Texas ZIP Codes
Karnes City holds a single ZIP code.
Every ZIP code in Karnes City
| ZIP code | County |
|---|---|
| 78118 | Karnes 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Karnes City codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Karnes City. 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 Karnes City ZIP code begins 781. Those first three digits identify the sectional center facility that processes mail for this part of Texas. Statewide that range covers 46 ZIP codes, so Karnes City accounts for 2% of it.
Every Texas ZIP prefix and the region it covers →
Area codes covering Karnes City
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 Karnes City occupies.
Karnes City Texas area codes in full →
Where Karnes City's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Karnes City
| City | Distance | ZIP codes |
|---|---|---|
| Kenedy Texas ZIP codes | 6.0 mi | 1 ZIP code |
| Falls City Texas ZIP codes | 9.9 mi | 1 ZIP code |
| Runge Texas ZIP codes | 11 mi | 1 ZIP code |
| Poth Texas ZIP codes | 17 mi | 1 ZIP code |
| Nordheim Texas ZIP codes | 18 mi | 1 ZIP code |
| Floresville Texas ZIP codes | 24 mi | 1 ZIP code |
| Stockdale Texas ZIP codes | 25 mi | 1 ZIP code |
| Yorktown Texas ZIP codes | 25 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.