Postal entity record
US 57312 Postal Code Data Source-backed
57312 postal code facts for Alpena, US: region, coordinates, source, and nearby postal codes.
CountryUS
PlaceAlpena
RegionSD
Nearby rows12
Key metadata
| Place | Alpena |
|---|---|
| Admin area | South Dakota / SD |
| Local area | Jerauld |
| Coordinates | 44.1709, -98.3962 |
| 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 57312 to Alpena, 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 | Alpena |
| postal_code | admin_area | South Dakota |
| postal_code | centroid | 44.1709, -98.3962 |
Nearby postal codes
| Code | Place | Region | Distance |
|---|---|---|---|
| 57358 | Lane | South Dakota | 7.1 mi |
| 57379 | Virgil | South Dakota | 8.4 mi |
| 57385 | Woonsocket | South Dakota | 10.9 mi |
| 57382 | Wessington Springs | South Dakota | 15.6 mi |
| 57350 | Huron | South Dakota | 15.8 mi |
| 57399 | Huron | South Dakota | 16.1 mi |
| 57384 | Wolsey | South Dakota | 16.2 mi |
| 57314 | Artesian | South Dakota | 21.7 mi |
| 57359 | Letcher | South Dakota | 22.2 mi |
| 57381 | Wessington | South Dakota | 22.2 mi |
| 57324 | Cavour | South Dakota | 22.9 mi |
| 57348 | Hitchcock | South Dakota | 28.6 mi |