Postal entity record
US 57521 Postal Code Data Source-backed
57521 postal code facts for Belvidere, US: region, coordinates, source, and nearby postal codes.
CountryUS
PlaceBelvidere
RegionSD
Nearby rows9
Key metadata
| Place | Belvidere |
|---|---|
| Admin area | South Dakota / SD |
| Local area | Jackson |
| Coordinates | 43.886, -101.2387 |
| 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 57521 to Belvidere, 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 | Belvidere |
| postal_code | admin_area | South Dakota |
| postal_code | centroid | 43.886, -101.2387 |
Nearby postal codes
| Code | Place | Region | Distance |
|---|---|---|---|
| 57552 | Midland | South Dakota | 13.5 mi |
| 57543 | Kadoka | South Dakota | 15.9 mi |
| 57562 | Okaton | South Dakota | 17.3 mi |
| 57567 | Philip | South Dakota | 25.2 mi |
| 57559 | Murdo | South Dakota | 26.2 mi |
| 57560 | Norris | South Dakota | 29.3 mi |
| 57547 | Long Valley | South Dakota | 29.9 mi |
| 57577 | Wanblee | South Dakota | 33.1 mi |
| 57579 | White River | South Dakota | 33.1 mi |