Postal entity record
US 45018 Postal Code Data Source-backed
45018 postal code facts for Fairfield, US: region, coordinates, source, and nearby postal codes.
CountryUS
PlaceFairfield
RegionOH
Nearby rows12
Key metadata
| Place | Fairfield |
|---|---|
| Admin area | Ohio / OH |
| Local area | Butler |
| Coordinates | 39.441, -84.5757 |
| 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 45018 to Fairfield, 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 | Fairfield |
| postal_code | admin_area | Ohio |
| postal_code | centroid | 39.441, -84.5757 |
Nearby postal codes
| Code | Place | Region | Distance |
|---|---|---|---|
| 45012 | Hamilton | Ohio | 0 mi |
| 45013 | Hamilton | Ohio | 2.3 mi |
| 45062 | Seven Mile | Ohio | 2.9 mi |
| 45055 | Overpeck | Ohio | 3.3 mi |
| 45011 | Hamilton | Ohio | 3.8 mi |
| 45004 | Collinsville | Ohio | 5.4 mi |
| 45015 | Hamilton | Ohio | 6.6 mi |
| 45067 | Trenton | Ohio | 6.7 mi |
| 45014 | Fairfield | Ohio | 8 mi |
| 45064 | Somerville | Ohio | 8.3 mi |
| 45061 | Ross | Ohio | 9.7 mi |
| 45056 | Oxford | Ohio | 10.1 mi |