Postal entity record
US 52638 Postal Code Data Source-backed
52638 postal code facts for Middletown, US: region, coordinates, source, and nearby postal codes.
CountryUS
PlaceMiddletown
RegionIA
Nearby rows12
Key metadata
| Place | Middletown |
|---|---|
| Admin area | Iowa / IA |
| Local area | Des Moines |
| Coordinates | 40.8296, -91.2631 |
| 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 52638 to Middletown, 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 | Middletown |
| postal_code | admin_area | Iowa |
| postal_code | centroid | 40.8296, -91.2631 |
Nearby postal codes
| Code | Place | Region | Distance |
|---|---|---|---|
| 52623 | Danville | Iowa | 3.1 mi |
| 52655 | West Burlington | Iowa | 4.4 mi |
| 52624 | Denmark | Iowa | 7.2 mi |
| 52601 | Burlington | Iowa | 7.8 mi |
| 52658 | Wever | Iowa | 8.7 mi |
| 52650 | Sperry | Iowa | 8.8 mi |
| 52645 | New London | Iowa | 9.3 mi |
| 52660 | Yarmouth | Iowa | 10.8 mi |
| 61425 | Carman | Illinois | 12 mi |
| 52656 | West Point | Iowa | 12.2 mi |
| 52657 | Saint Paul | Iowa | 13.9 mi |
| 52637 | Mediapolis | Iowa | 14 mi |