Postal entity record
US 48138 Postal Code Data Source-backed
48138 postal code facts for Grosse Ile, US: region, coordinates, source, and nearby postal codes.
CountryUS
PlaceGrosse Ile
RegionMI
Nearby rows12
Key metadata
| Place | Grosse Ile |
|---|---|
| Admin area | Michigan / MI |
| Local area | Wayne |
| Coordinates | 42.1352, -83.1561 |
| 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 48138 to Grosse Ile, 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 | Grosse Ile |
| postal_code | admin_area | Michigan |
| postal_code | centroid | 42.1352, -83.1561 |
Nearby postal codes
| Code | Place | Region | Distance |
|---|---|---|---|
| 48183 | Trenton | Michigan | 3.2 mi |
| 48192 | Wyandotte | Michigan | 5.1 mi |
| 48173 | Rockwood | Michigan | 5.2 mi |
| 48195 | Southgate | Michigan | 5.3 mi |
| 48193 | Riverview | Michigan | 5.5 mi |
| 48134 | Flat Rock | Michigan | 6.6 mi |
| 48121 | Dearborn | Michigan | 7.2 mi |
| 48123 | Dearborn | Michigan | 7.2 mi |
| 48136 | Garden City | Michigan | 7.2 mi |
| 48222 | Detroit | Michigan | 7.2 mi |
| 48233 | Detroit | Michigan | 7.2 mi |
| 48244 | Detroit | Michigan | 7.2 mi |