Postal entity record
US 52309 Postal Code Data Source-backed
52309 postal code facts for Monmouth, US: region, coordinates, source, and nearby postal codes.
CountryUS
PlaceMonmouth
RegionIA
Nearby rows12
Key metadata
| Place | Monmouth |
|---|---|
| Admin area | Iowa / IA |
| Local area | Jackson |
| Coordinates | 42.0772, -90.8786 |
| 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 52309 to Monmouth, 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 | Monmouth |
| postal_code | admin_area | Iowa |
| postal_code | centroid | 42.0772, -90.8786 |
Nearby postal codes
| Code | Place | Region | Distance |
|---|---|---|---|
| 52207 | Baldwin | Iowa | 3 mi |
| 52362 | Wyoming | Iowa | 6 mi |
| 52321 | Onslow | Iowa | 7.3 mi |
| 52323 | Oxford Junction | Iowa | 7.4 mi |
| 52254 | Lost Nation | Iowa | 7.6 mi |
| 52060 | Maquoketa | Iowa | 10.3 mi |
| 52212 | Center Junction | Iowa | 11 mi |
| 52320 | Olin | Iowa | 14.6 mi |
| 52037 | Delmar | Iowa | 14.9 mi |
| 52079 | Zwingle | Iowa | 15.3 mi |
| 52255 | Lowden | Iowa | 15.4 mi |
| 52030 | Andrew | Iowa | 15.6 mi |