Postal entity record
US 78257 Postal Code Data Source-backed
78257 postal code facts for San Antonio, US: region, coordinates, source, and nearby postal codes.
CountryUS
PlaceSan Antonio
RegionTX
Nearby rows12
Key metadata
| Place | San Antonio |
|---|---|
| Admin area | Texas / TX |
| Local area | Bexar |
| Coordinates | 29.6495, -98.6137 |
| GeoNames accuracy | 4 |
| Source | GeoNames postal code data |
| License | GeoNames postal data; provided as-is with attribution required. |
| Snapshot date | 2026-06-02 |
What this record means
This row links US 78257 to San Antonio, the available admin area, centroid coordinates, source accuracy, and source snapshot metadata.
Use it as a reference-data join for cleaning CRM rows, grouping operational reports, preparing territory QA, or checking whether an imported postal value has a source-backed match.
What the centroid can support
The latitude and longitude represent a postal centroid from the source snapshot. They are useful for approximate map previews, nearby-record review, deduplication checks, and distance-based QA.
They should not be treated as an official delivery boundary, address-level geocode, tax boundary, or service-area guarantee.
Sample CSV enrichment output
| Input field | Added output | Example value |
|---|---|---|
| postal_code | matched_place | San Antonio |
| postal_code | admin_area | Texas |
| postal_code | centroid | 29.6495, -98.6137 |
Nearby postal codes
| Code | Place | Region | Distance |
|---|---|---|---|
| 78256 | San Antonio | Texas | 2.4 mi |
| 78255 | San Antonio | Texas | 4.6 mi |
| 78249 | San Antonio | Texas | 6.1 mi |
| 78015 | Boerne | Texas | 6.5 mi |
| 78231 | San Antonio | Texas | 6.9 mi |
| 78248 | San Antonio | Texas | 7 mi |
| 78258 | San Antonio | Texas | 7 mi |
| 78230 | San Antonio | Texas | 8.4 mi |
| 78023 | Helotes | Texas | 8.5 mi |
| 78260 | San Antonio | Texas | 9 mi |
| 78240 | San Antonio | Texas | 9.1 mi |
| 78232 | San Antonio | Texas | 9.3 mi |