Postal entity record
US 57016 Postal Code Data Source-backed
57016 postal code facts for Chester, US: region, coordinates, source, and nearby postal codes.
CountryUS
PlaceChester
RegionSD
Nearby rows12
Key metadata
| Place | Chester |
|---|---|
| Admin area | South Dakota / SD |
| Local area | Lake |
| Coordinates | 43.8981, -96.9759 |
| 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 57016 to Chester, 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 | Chester |
| postal_code | admin_area | South Dakota |
| postal_code | centroid | 43.8981, -96.9759 |
Nearby postal codes
| Code | Place | Region | Distance |
|---|---|---|---|
| 57075 | Wentworth | South Dakota | 6.1 mi |
| 57018 | Colton | South Dakota | 7.2 mi |
| 57017 | Colman | South Dakota | 8.8 mi |
| 57042 | Madison | South Dakota | 10.1 mi |
| 57057 | Rutland | South Dakota | 11.8 mi |
| 57041 | Lyons | South Dakota | 12.8 mi |
| 57022 | Dell Rapids | South Dakota | 13.7 mi |
| 57003 | Baltic | South Dakota | 15.9 mi |
| 57048 | Montrose | South Dakota | 17 mi |
| 57065 | Trent | South Dakota | 17.1 mi |
| 57024 | Egan | South Dakota | 17.4 mi |
| 57050 | Nunda | South Dakota | 17.6 mi |