Postal entity record
US 50158 Postal Code Data Source-backed
50158 postal code facts for Marshalltown, US: region, coordinates, source, and nearby postal codes.
CountryUS
PlaceMarshalltown
RegionIA
Nearby rows12
Key metadata
| Place | Marshalltown |
|---|---|
| Admin area | Iowa / IA |
| Local area | Marshall |
| Coordinates | 42.0405, -92.9127 |
| 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 50158 to Marshalltown, 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 | Marshalltown |
| postal_code | admin_area | Iowa |
| postal_code | centroid | 42.0405, -92.9127 |
Nearby postal codes
| Code | Place | Region | Distance |
|---|---|---|---|
| 50005 | Albion | Iowa | 6.4 mi |
| 50142 | Le Grand | Iowa | 7.4 mi |
| 50078 | Ferguson | Iowa | 7.5 mi |
| 50120 | Haverhill | Iowa | 8.2 mi |
| 50148 | Liscomb | Iowa | 10.6 mi |
| 50141 | Laurel | Iowa | 10.9 mi |
| 50106 | Gilman | Iowa | 11 mi |
| 50162 | Melbourne | Iowa | 11.6 mi |
| 50173 | Montour | Iowa | 11.9 mi |
| 50632 | Garwin | Iowa | 11.9 mi |
| 50247 | State Center | Iowa | 13.2 mi |
| 50621 | Conrad | Iowa | 13.5 mi |