Postal entity record
US 51446 Postal Code Data Source-backed
51446 postal code facts for Irwin, US: region, coordinates, source, and nearby postal codes.
CountryUS
PlaceIrwin
RegionIA
Nearby rows12
Key metadata
| Place | Irwin |
|---|---|
| Admin area | Iowa / IA |
| Local area | Shelby |
| Coordinates | 41.7751, -95.1919 |
| 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 51446 to Irwin, 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 | Irwin |
| postal_code | admin_area | Iowa |
| postal_code | centroid | 41.7751, -95.1919 |
Nearby postal codes
| Code | Place | Region | Distance |
|---|---|---|---|
| 51447 | Kirkman | Iowa | 4.9 mi |
| 51454 | Manilla | Iowa | 8.4 mi |
| 51527 | Defiance | Iowa | 8.6 mi |
| 51432 | Aspinwall | Iowa | 9.9 mi |
| 51537 | Harlan | Iowa | 11 mi |
| 51578 | Westphalia | Iowa | 11.2 mi |
| 51455 | Manning | Iowa | 11.5 mi |
| 50110 | Gray | Iowa | 11.7 mi |
| 51530 | Earling | Iowa | 11.9 mi |
| 51543 | Kimballton | Iowa | 12 mi |
| 50025 | Audubon | Iowa | 14.5 mi |
| 51531 | Elk Horn | Iowa | 14.7 mi |