Postal entity record
US 57420 Postal Code Data Source-backed
57420 postal code facts for Akaska, US: region, coordinates, source, and nearby postal codes.
CountryUS
PlaceAkaska
RegionSD
Nearby rows12
Key metadata
| Place | Akaska |
|---|---|
| Admin area | South Dakota / SD |
| Local area | Walworth |
| Coordinates | 45.3324, -100.1186 |
| 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 57420 to Akaska, 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 | Akaska |
| postal_code | admin_area | South Dakota |
| postal_code | centroid | 45.3324, -100.1186 |
Nearby postal codes
| Code | Place | Region | Distance |
|---|---|---|---|
| 57472 | Selby | South Dakota | 10.6 mi |
| 57631 | Glenham | South Dakota | 15.8 mi |
| 57452 | Java | South Dakota | 16.5 mi |
| 57450 | Hoven | South Dakota | 18.1 mi |
| 57601 | Mobridge | South Dakota | 20.9 mi |
| 57442 | Gettysburg | South Dakota | 22.3 mi |
| 57428 | Bowdle | South Dakota | 24 mi |
| 57646 | Mound City | South Dakota | 24.2 mi |
| 57652 | Ridgeview | South Dakota | 25.3 mi |
| 57475 | Tolstoy | South Dakota | 26.8 mi |
| 57455 | Lebanon | South Dakota | 28.9 mi |
| 57657 | Trail City | South Dakota | 31 mi |