Postal entity record
US 57751 Postal Code Data Source-backed
57751 postal code facts for Keystone, US: region, coordinates, source, and nearby postal codes.
CountryUS
PlaceKeystone
RegionSD
Nearby rows12
Key metadata
| Place | Keystone |
|---|---|
| Admin area | South Dakota / SD |
| Local area | Pennington |
| Coordinates | 43.8848, -103.3995 |
| 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 57751 to Keystone, 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 | Keystone |
| postal_code | admin_area | South Dakota |
| postal_code | centroid | 43.8848, -103.3995 |
Nearby postal codes
| Code | Place | Region | Distance |
|---|---|---|---|
| 57702 | Rapid City | South Dakota | 8.5 mi |
| 57745 | Hill City | South Dakota | 9.6 mi |
| 57744 | Hermosa | South Dakota | 10.7 mi |
| 57709 | Rapid City | South Dakota | 13.8 mi |
| 57703 | Rapid City | South Dakota | 15.8 mi |
| 57730 | Custer | South Dakota | 15.8 mi |
| 57738 | Fairburn | South Dakota | 18 mi |
| 57718 | Black Hawk | South Dakota | 18.6 mi |
| 57701 | Rapid City | South Dakota | 20.2 mi |
| 57773 | Pringle | South Dakota | 21.4 mi |
| 57719 | Box Elder | South Dakota | 23.1 mi |
| 57759 | Nemo | South Dakota | 23.6 mi |