ZIP Code 20830
Olney, Maryland · Montgomery County
No8804
Zip20830
TypePO BOX
Decommissioned0
Primary CityOlney
Acceptable Cities—
Unacceptable Cities—
StateMD
LstateMaryland
CountyMontgomery County
TimezoneAmerica/New_York
Area Codes240
World RegionNA
CountryUS
Latitude39,14
Longitude-77,08