Postal entity record
US 48309 Postal Code Data Source-backed
48309 postal code facts for Rochester, US: region, coordinates, source, and nearby postal codes.
CountryUS
PlaceRochester
RegionMI
Nearby rows12
Key metadata
| Place | Rochester |
|---|---|
| Admin area | Michigan / MI |
| Local area | Oakland |
| Coordinates | 42.6626, -83.1837 |
| 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 48309 to Rochester, 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 | Rochester |
| postal_code | admin_area | Michigan |
| postal_code | centroid | 42.6626, -83.1837 |
Nearby postal codes
| Code | Place | Region | Distance |
|---|---|---|---|
| 48326 | Auburn Hills | Michigan | 2.7 mi |
| 48308 | Rochester | Michigan | 2.8 mi |
| 48307 | Rochester | Michigan | 3.1 mi |
| 48098 | Troy | Michigan | 4.4 mi |
| 48306 | Rochester | Michigan | 4.6 mi |
| 48342 | Pontiac | Michigan | 5 mi |
| 48099 | Troy | Michigan | 5.2 mi |
| 48085 | Troy | Michigan | 5.4 mi |
| 48340 | Pontiac | Michigan | 5.4 mi |
| 48343 | Pontiac | Michigan | 5.7 mi |
| 48304 | Bloomfield Hills | Michigan | 5.9 mi |
| 48303 | Bloomfield Hills | Michigan | 6.3 mi |