Montgomery County Maryland ZIP Codes - Map and Full List

Montgomery County Maryland is covered by a total of 82 ZIP Codes. There are 6 ZIP Codes in Montgomery County that extend into adjacent counties (Carroll County, Frederick County, Howard County, and Prince Georges County). Of the ZIP codes within or partially within Montgomery County there are 44 Standard ZIP Codes, 12 Unique ZIP Codes and 26 PO Box ZIP Codes. Data Updated October 2, 2024

Map List Related

Montgomery County Maryland ZIP Code Map

Click on the ZIP Codes in the interactive map to view more information. The map control in the upper right corner can be used to toggle map layers on and off. The red outline is the border of Montgomery County and can be turned on and off. Each type of postal code can also be turned on and off.

List of ZIP Codes in Montgomery County

ZIP CodeZIP Code City/TownZIP Code Type
ZIP Code 20058
WashingtonUnique
ZIP Code 20207
WashingtonUnique
ZIP Code 20707
LaurelStandard
ZIP Code 20787
HyattsvillePO Box
ZIP Code 20810
BethesdaUnique
ZIP Code 20811
BethesdaUnique
ZIP Code 20812
Glen EchoStandard
ZIP Code 20813
BethesdaPO Box
ZIP Code 20814
BethesdaStandard
ZIP Code 20815
Chevy ChaseStandard
ZIP Code 20816
BethesdaStandard
ZIP Code 20817
BethesdaStandard
ZIP Code 20818
Cabin JohnStandard
ZIP Code 20824
BethesdaPO Box
ZIP Code 20825
Chevy ChasePO Box
ZIP Code 20827
BethesdaPO Box
ZIP Code 20830
OlneyPO Box
ZIP Code 20832
OlneyStandard
ZIP Code 20833
BrookevilleStandard
ZIP Code 20837
PoolesvilleStandard
ZIP Code 20838
BarnesvilleStandard
ZIP Code 20839
BeallsvilleStandard
ZIP Code 20841
BoydsStandard
ZIP Code 20842
DickersonStandard
ZIP Code 20847
RockvillePO Box
ZIP Code 20848
RockvillePO Box
ZIP Code 20849
RockvillePO Box
ZIP Code 20850
RockvilleStandard
ZIP Code 20851
RockvilleStandard
ZIP Code 20852
RockvilleStandard
ZIP Code 20853
RockvilleStandard
ZIP Code 20854
PotomacStandard
ZIP Code 20855
DerwoodStandard
ZIP Code 20857
RockvilleUnique
ZIP Code 20859
PotomacPO Box
ZIP Code 20860
Sandy SpringStandard
ZIP Code 20861
AshtonStandard
ZIP Code 20862
BrinklowStandard
ZIP Code 20866
BurtonsvilleStandard
ZIP Code 20868
SpencervilleStandard
ZIP Code 20871
ClarksburgStandard
ZIP Code 20872
DamascusStandard
ZIP Code 20874
GermantownStandard
ZIP Code 20875
GermantownPO Box
ZIP Code 20876
GermantownStandard
ZIP Code 20877
GaithersburgStandard
ZIP Code 20878
GaithersburgStandard
ZIP Code 20879
GaithersburgStandard
ZIP Code 20880
Washington GrovePO Box
ZIP Code 20882
GaithersburgStandard
ZIP Code 20883
GaithersburgPO Box
ZIP Code 20884
GaithersburgPO Box
ZIP Code 20885
GaithersburgPO Box
ZIP Code 20886
Montgomery VillageStandard
ZIP Code 20889
BethesdaUnique
ZIP Code 20891
KensingtonPO Box
ZIP Code 20892
BethesdaUnique
ZIP Code 20894
BethesdaUnique
ZIP Code 20895
KensingtonStandard
ZIP Code 20896
Garrett ParkPO Box
ZIP Code 20897
Suburb Maryland FacUnique
ZIP Code 20898
GaithersburgPO Box
ZIP Code 20899
GaithersburgUnique
ZIP Code 20901
Silver SpringStandard
ZIP Code 20902
Silver SpringStandard
ZIP Code 20903
Silver SpringStandard
ZIP Code 20904
Silver SpringStandard
ZIP Code 20905
Silver SpringStandard
ZIP Code 20906
Silver SpringStandard
ZIP Code 20907
Silver SpringPO Box
ZIP Code 20908
Silver SpringPO Box
ZIP Code 20910
Silver SpringStandard
ZIP Code 20911
Silver SpringPO Box
ZIP Code 20912
Takoma ParkStandard
ZIP Code 20913
Takoma ParkPO Box
ZIP Code 20914
Silver SpringPO Box
ZIP Code 20915
Silver SpringPO Box
ZIP Code 20916
Silver SpringPO Box
ZIP Code 20918
Silver SpringPO Box
ZIP Code 20993
Silver SpringUnique
ZIP Code 20997
Silver SpringUnique
ZIP Code 21771
Mount AiryStandard

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