Postal entity record
US 63121 Postal Code Data Source-backed
63121 postal code facts for Saint Louis, US: region, coordinates, source, and nearby postal codes.
CountryUS
PlaceSaint Louis
RegionMO
Nearby rows12
Key metadata
| Place | Saint Louis |
|---|---|
| Admin area | Missouri / MO |
| Local area | St. Louis |
| Coordinates | 38.7071, -90.3055 |
| GeoNames accuracy | 1 |
| 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 63121 to Saint Louis, 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 | Saint Louis |
| postal_code | admin_area | Missouri |
| postal_code | centroid | 38.7071, -90.3055 |
Nearby postal codes
| Code | Place | Region | Distance |
|---|---|---|---|
| 63133 | Saint Louis | Missouri | 2 mi |
| 63136 | Saint Louis | Missouri | 2.1 mi |
| 63140 | Saint Louis | Missouri | 2.4 mi |
| 63120 | Saint Louis | Missouri | 2.7 mi |
| 63130 | Saint Louis | Missouri | 2.9 mi |
| 63135 | Saint Louis | Missouri | 3 mi |
| 63114 | Saint Louis | Missouri | 3.2 mi |
| 63134 | Saint Louis | Missouri | 3.2 mi |
| 63112 | Saint Louis | Missouri | 3.4 mi |
| 63147 | Saint Louis | Missouri | 3.7 mi |
| 63115 | Saint Louis | Missouri | 4.2 mi |
| 63105 | Saint Louis | Missouri | 4.4 mi |