Postal entity record
US 57339 Postal Code Data Source-backed
57339 postal code facts for Fort Thompson, US: region, coordinates, source, and nearby postal codes.
CountryUS
PlaceFort Thompson
RegionSD
Nearby rows12
Key metadata
| Place | Fort Thompson |
|---|---|
| Admin area | South Dakota / SD |
| Local area | Buffalo |
| Coordinates | 44.0517, -99.3973 |
| 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 57339 to Fort Thompson, 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 | Fort Thompson |
| postal_code | admin_area | South Dakota |
| postal_code | centroid | 44.0517, -99.3973 |
Nearby postal codes
| Code | Place | Region | Distance |
|---|---|---|---|
| 57548 | Lower Brule | South Dakota | 11.1 mi |
| 57346 | Stephan | South Dakota | 13.8 mi |
| 57569 | Reliance | South Dakota | 15.7 mi |
| 57326 | Chamberlain | South Dakota | 17 mi |
| 57341 | Gann Valley | South Dakota | 17.1 mi |
| 57365 | Oacoma | South Dakota | 17.6 mi |
| 57325 | Chamberlain | South Dakota | 18.2 mi |
| 57370 | Pukwana | South Dakota | 21.8 mi |
| 57544 | Kennebec | South Dakota | 25.1 mi |
| 57355 | Kimball | South Dakota | 30.4 mi |
| 57534 | Hamill | South Dakota | 31.8 mi |
| 57345 | Highmore | South Dakota | 33.3 mi |