Postal entity record
US 57359 Postal Code Data Source-backed
57359 postal code facts for Letcher, US: region, coordinates, source, and nearby postal codes.
CountryUS
PlaceLetcher
RegionSD
Nearby rows12
Key metadata
| Place | Letcher |
|---|---|
| Admin area | South Dakota / SD |
| Local area | Sanborn |
| Coordinates | 43.8923, -98.1743 |
| 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 57359 to Letcher, 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 | Letcher |
| postal_code | admin_area | South Dakota |
| postal_code | centroid | 43.8923, -98.1743 |
Nearby postal codes
| Code | Place | Region | Distance |
|---|---|---|---|
| 57385 | Woonsocket | South Dakota | 11.9 mi |
| 57314 | Artesian | South Dakota | 12 mi |
| 57363 | Mount Vernon | South Dakota | 12.7 mi |
| 57301 | Mitchell | South Dakota | 14.5 mi |
| 57358 | Lane | South Dakota | 17.5 mi |
| 57340 | Fulton | South Dakota | 17.7 mi |
| 57368 | Plankinton | South Dakota | 18.2 mi |
| 57337 | Fedora | South Dakota | 20.2 mi |
| 57312 | Alpena | South Dakota | 22.2 mi |
| 57334 | Ethan | South Dakota | 25.6 mi |
| 57311 | Alexandria | South Dakota | 26 mi |
| 57375 | Stickney | South Dakota | 27.1 mi |