Mailbox Map › United States › Effingham › Watson Post Office
Post office · USPS
Watson Post Office, Effingham
Watson Post Office at Watson, IL 62473.
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| Address | Watson, IL 62473 |
|---|---|
| Area | Effingham, Illinois |
| Coordinates | 39.02504, -88.57116 |
| Time zone | America/Chicago |
Mapped by the OpenStreetMap community, last checked 2026-06-18. Spotted a box that's gone? Fix it on OpenStreetMap and this page follows within a month.