Postal entity record
US 60030 Postal Code Data Source-backed
60030 postal code facts for Grayslake, US: region, coordinates, source, and nearby postal codes.
CountryUS
PlaceGrayslake
RegionIL
Nearby rows12
Key metadata
| Place | Grayslake |
|---|---|
| Admin area | Illinois / IL |
| Local area | Lake |
| Coordinates | 42.3524, -88.0545 |
| 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 60030 to Grayslake, 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 | Grayslake |
| postal_code | admin_area | Illinois |
| postal_code | centroid | 42.3524, -88.0545 |
Nearby postal codes
| Code | Place | Region | Distance |
|---|---|---|---|
| 60073 | Round Lake | Illinois | 2 mi |
| 60046 | Lake Villa | Illinois | 3.5 mi |
| 60041 | Ingleside | Illinois | 5.4 mi |
| 60031 | Gurnee | Illinois | 5.7 mi |
| 60020 | Fox Lake | Illinois | 6.3 mi |
| 60060 | Mundelein | Illinois | 6.6 mi |
| 60048 | Libertyville | Illinois | 7.3 mi |
| 60084 | Wauconda | Illinois | 7.3 mi |
| 60002 | Antioch | Illinois | 8.4 mi |
| 60042 | Island Lake | Illinois | 8.9 mi |
| 60051 | Mchenry | Illinois | 8.9 mi |
| 60047 | Lake Zurich | Illinois | 9.5 mi |