Postal entity record
US 48390 Postal Code Data Source-backed
48390 postal code facts for Walled Lake, US: region, coordinates, source, and nearby postal codes.
CountryUS
PlaceWalled Lake
RegionMI
Nearby rows12
Key metadata
| Place | Walled Lake |
|---|---|
| Admin area | Michigan / MI |
| Local area | Oakland |
| Coordinates | 42.5582, -83.4773 |
| 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 48390 to Walled Lake, 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 | Walled Lake |
| postal_code | admin_area | Michigan |
| postal_code | centroid | 42.5582, -83.4773 |
Nearby postal codes
| Code | Place | Region | Distance |
|---|---|---|---|
| 48391 | Walled Lake | Michigan | 1.4 mi |
| 48382 | Commerce Township | Michigan | 2.1 mi |
| 48393 | Wixom | Michigan | 3.1 mi |
| 48377 | Novi | Michigan | 4.1 mi |
| 48387 | Union Lake | Michigan | 4.2 mi |
| 48323 | West Bloomfield | Michigan | 5 mi |
| 48322 | West Bloomfield | Michigan | 5.1 mi |
| 48331 | Farmington | Michigan | 5.1 mi |
| 48324 | West Bloomfield | Michigan | 5.5 mi |
| 48386 | White Lake | Michigan | 5.7 mi |
| 48376 | Novi | Michigan | 6 mi |
| 48381 | Milford | Michigan | 6 mi |