Postal entity record
US 57437 Postal Code Data Source-backed
57437 postal code facts for Eureka, US: region, coordinates, source, and nearby postal codes.
CountryUS
PlaceEureka
RegionSD
Nearby rows12
Key metadata
| Place | Eureka |
|---|---|
| Admin area | South Dakota / SD |
| Local area | McPherson |
| Coordinates | 45.7707, -99.3308 |
| 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 57437 to Eureka, 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 | Eureka |
| postal_code | admin_area | South Dakota |
| postal_code | centroid | 45.7707, -99.3308 |
Nearby postal codes
| Code | Place | Region | Distance |
|---|---|---|---|
| 57457 | Long Lake | South Dakota | 8.5 mi |
| 57448 | Hosmer | South Dakota | 15.8 mi |
| 57456 | Leola | South Dakota | 19.1 mi |
| 58413 | Ashley | North Dakota | 19.6 mi |
| 57471 | Roscoe | South Dakota | 23.7 mi |
| 58581 | Zeeland | North Dakota | 26.7 mi |
| 57428 | Bowdle | South Dakota | 26.9 mi |
| 57451 | Ipswich | South Dakota | 27 mi |
| 58439 | Forbes | North Dakota | 29.9 mi |
| 58495 | Wishek | North Dakota | 32.1 mi |
| 57452 | Java | South Dakota | 32.5 mi |
| 58460 | Lehr | North Dakota | 33.7 mi |