Postal Code
20657
Postal Code 20657
Country United States
ISO Code US
ZIP Code 20657

Postal Information

Postal Code 20657
City Lusby
County Calvert
Region Maryland
Country United States

Nearby Postal Codes

Distances are calculated geographically from this postal code, not from administrative boundaries.

Postal Code City Region Coordinates
20629 Dowell Maryland 10.8 km
20688 Solomons Maryland 11.7 km
21669 Taylors Island Maryland 12.0 km
20670 Patuxent River Maryland 12.7 km
21634 Fishing Creek Maryland 13.2 km
20653 Lexington Park Maryland 15.9 km
21648 Madison Maryland 16.9 km
21622 Church Creek Maryland 17.1 km
20685 Saint Leonard Maryland 17.3 km
20619 California Maryland 18.0 km
20615 Broomes Island Maryland 18.7 km
20634 Great Mills Maryland 18.9 km
21677 Woolford Maryland 20.1 km
20667 Park Hall Maryland 20.1 km
21626 Crapo Maryland 20.5 km
20636 Hollywood Maryland 20.7 km

Postal Hierarchy

ZIP Code20657

ZIP Code (5 digits) with optional ZIP+4 extension.

About ZIP Code 20657 in Lusby, Maryland

ZIP Code 20657 for Lusby, Maryland is part of the United States postal code system, which uses a numeric code of 5 (or 5+4) digits (e.g. 10001). Addresses here are organised as State → County → City. Within the code structure it maps to ZIP Code 20657.

Administratively it is recorded in Calvert, Maryland within United States. Postal codes are assigned by delivery route rather than by administrative boundary, so a single code can cover more than one locality and a locality can fall under several codes.

No building-level records are held for this code in the imported dataset, so only the code and its location details are shown. The absence of records does not mean the zip code is unused.

Couriers, e-commerce checkout forms and address autocomplete tools all rely on the zip code to route mail and to check that a stated address matches the code. Because a zip code identifies a delivery area rather than a single building, two addresses that share the same code can still be some distance apart.

Always write United States ZIP Code in full when completing a form, including any leading zero. Enter a valid US ZIP Code, e.g. 10001 or 10001-1234. Data source: a third-party open dataset. This is a reference snapshot, not a live government feed, so confirm the code with the sender, carrier or postal authority before relying on it.

Buildings & Addresses for This Code

No building-level records were found for this postal code in the imported dataset.
Information provided on CodeReff is for reference purposes only. Always verify financial and banking details with the relevant institution before use.