Postal entity record
US 63017 Postal Code Data Source-backed
63017 postal code facts for Chesterfield, US: region, coordinates, source, and nearby postal codes.
CountryUS
PlaceChesterfield
RegionMO
Nearby rows12
Key metadata
| Place | Chesterfield |
|---|---|
| Admin area | Missouri / MO |
| Local area | St. Louis |
| Coordinates | 38.6491, -90.5358 |
| 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 63017 to Chesterfield, 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 | Chesterfield |
| postal_code | admin_area | Missouri |
| postal_code | centroid | 38.6491, -90.5358 |
Nearby postal codes
| Code | Place | Region | Distance |
|---|---|---|---|
| 63006 | Chesterfield | Missouri | 2.4 mi |
| 63011 | Ballwin | Missouri | 3.1 mi |
| 63022 | Ballwin | Missouri | 3.8 mi |
| 63024 | Ballwin | Missouri | 3.8 mi |
| 63005 | Chesterfield | Missouri | 4.4 mi |
| 63141 | Saint Louis | Missouri | 4.4 mi |
| 63021 | Ballwin | Missouri | 5 mi |
| 63131 | Saint Louis | Missouri | 5.1 mi |
| 63146 | Saint Louis | Missouri | 5.5 mi |
| 63032 | Florissant | Missouri | 5.9 mi |
| 63099 | Fenton | Missouri | 5.9 mi |
| 63145 | Saint Louis | Missouri | 5.9 mi |