Postal entity record
US 49240 Postal Code Data Source-backed
49240 postal code facts for Grass Lake, US: region, coordinates, source, and nearby postal codes.
CountryUS
PlaceGrass Lake
RegionMI
Nearby rows12
Key metadata
| Place | Grass Lake |
|---|---|
| Admin area | Michigan / MI |
| Local area | Jackson |
| Coordinates | 42.2711, -84.194 |
| 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 49240 to Grass 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 | Grass Lake |
| postal_code | admin_area | Michigan |
| postal_code | centroid | 42.2711, -84.194 |
Nearby postal codes
| Code | Place | Region | Distance |
|---|---|---|---|
| 49254 | Michigan Center | Michigan | 6.9 mi |
| 49259 | Munith | Michigan | 7.4 mi |
| 49261 | Napoleon | Michigan | 7.8 mi |
| 49263 | Norvell | Michigan | 7.8 mi |
| 48118 | Chelsea | Michigan | 8.9 mi |
| 49201 | Jackson | Michigan | 10 mi |
| 49204 | Jackson | Michigan | 10.7 mi |
| 49202 | Jackson | Michigan | 11 mi |
| 49272 | Pleasant Lake | Michigan | 11.2 mi |
| 48158 | Manchester | Michigan | 11.5 mi |
| 49203 | Jackson | Michigan | 11.6 mi |
| 49230 | Brooklyn | Michigan | 11.8 mi |