Postal reference
ZIP 20857, Maryland
ZIP code 20857 is associated with Rockville in Maryland in the GeoNames postal reference.
Reference details
- State
- Maryland (MD)
- ZIP code
- 20857
- Associated localities
- Rockville
- County names in postal records
- Montgomery
- Approximate postal point
- 39.084, -77.1528
View point on map ↗
Postal information is adapted from GeoNames, CC BY 4.0. Locality associations and coordinates are approximate, not ZIP boundaries or a guarantee of current mail delivery.