Data Last Updated: August 1, 2021

MONTGOMERY County, MD ZIP Codes

MONTGOMERY County, MD Covers 77 ZIP Codes

ZIP Code	Classification	City	Population	Timezone	Area Code(s)
ZIP Code 20810	Unique	Bethesda	0	Eastern	301/240
ZIP Code 20811	Unique	Bethesda	0	Eastern	301/240
ZIP Code 20812	General	Glen Echo	255	Eastern	240/301
ZIP Code 20813	P.O. Box	Bethesda	0	Eastern	301/240
ZIP Code 20814	General	Bethesda	27,642	Eastern	301/240
ZIP Code 20815	General	Chevy Chase	29,082	Eastern	301/240
ZIP Code 20816	General	Bethesda	16,208	Eastern	240/301
ZIP Code 20817	General	Bethesda	36,240	Eastern	301/240
ZIP Code 20818	General	Cabin John	1,962	Eastern	240/301
ZIP Code 20824	P.O. Box	Bethesda	0	Eastern	301/240
ZIP Code 20825	P.O. Box	Chevy Chase	0	Eastern	301/240
ZIP Code 20827	P.O. Box	Bethesda	0	Eastern	301/240
ZIP Code 20830	P.O. Box	Olney	0	Eastern	240/301
ZIP Code 20832	General	Olney	24,965	Eastern	240/301
ZIP Code 20833	General	Brookeville	7,735	Eastern	240/301
ZIP Code 20837	General	Poolesville	5,789	Eastern	240/301
ZIP Code 20838	General	Barnesville	259	Eastern	240/301
ZIP Code 20839	General	Beallsville	214	Eastern	240/301
ZIP Code 20841	General	Boyds	10,460	Eastern	240/301
ZIP Code 20842	General	Dickerson	1,824	Eastern	240/301
ZIP Code 20847	P.O. Box	Rockville	0	Eastern	301/240
ZIP Code 20848	P.O. Box	Rockville	0	Eastern	301/240
ZIP Code 20849	P.O. Box	Rockville	0	Eastern	301/240
ZIP Code 20850	General	Rockville	46,340	Eastern	240/301
ZIP Code 20851	General	Rockville	14,191	Eastern	301/240
ZIP Code 20852	General	Rockville	40,365	Eastern	301/240
ZIP Code 20853	General	Rockville	29,673	Eastern	301/240
ZIP Code 20854	General	Potomac	49,611	Eastern	301
ZIP Code 20855	General	Derwood	14,295	Eastern	240/301
ZIP Code 20857	Unique	Rockville	0	Eastern	301/240
ZIP Code 20859	P.O. Box	Potomac	0	Eastern	301
ZIP Code 20860	General	Sandy Spring	2,396	Eastern	240/301
ZIP Code 20861	General	Ashton	1,875	Eastern	240/301
ZIP Code 20862	General	Brinklow	343	Eastern	240/301
ZIP Code 20866	General	Burtonsville	13,344	Eastern	301
ZIP Code 20868	General	Spencerville	790	Eastern	301
ZIP Code 20871	General	Clarksburg	13,130	Eastern	240/301
ZIP Code 20872	General	Damascus	13,104	Eastern	240/301
ZIP Code 20874	General	Germantown	57,367	Eastern	301
ZIP Code 20875	P.O. Box	Germantown	0	Eastern	301
ZIP Code 20876	General	Germantown	25,496	Eastern	301/240
ZIP Code 20877	General	Gaithersburg	34,321	Eastern	301/240
ZIP Code 20878	General	Gaithersburg	62,446	Eastern	301
ZIP Code 20879	General	Gaithersburg	24,360	Eastern	301/240
ZIP Code 20880	P.O. Box	Washington Grove	450	Eastern	301/240
ZIP Code 20882	General	Gaithersburg	14,063	Eastern	301/240
ZIP Code 20883	P.O. Box	Gaithersburg	0	Eastern	301/240
ZIP Code 20884	P.O. Box	Gaithersburg	0	Eastern	301/240
ZIP Code 20885	P.O. Box	Gaithersburg	0	Eastern	301/240
ZIP Code 20886	General	Montgomery Village	33,282	Eastern	301/240
ZIP Code 20889	Unique	Bethesda	0	Eastern	301/240
ZIP Code 20891	P.O. Box	Kensington	0	Eastern	301/240
ZIP Code 20892	Unique	Bethesda	0	Eastern	301/240
ZIP Code 20894	Unique	Bethesda	0	Eastern	301/240
ZIP Code 20895	General	Kensington	19,054	Eastern	301/240
ZIP Code 20896	P.O. Box	Garrett Park	906	Eastern	301/240
ZIP Code 20897	Unique	Suburb Maryland Fac	0	Eastern	301/240
ZIP Code 20898	P.O. Box	Gaithersburg	0	Eastern	301/240
ZIP Code 20899	Unique	Gaithersburg	142	Eastern	301/240
ZIP Code 20901	General	Silver Spring	34,832	Eastern	301/240
ZIP Code 20902	General	Silver Spring	48,841	Eastern	301/240
ZIP Code 20903	General	Silver Spring	23,625	Eastern	301
ZIP Code 20904	General	Silver Spring	54,612	Eastern	301
ZIP Code 20905	General	Silver Spring	18,044	Eastern	301
ZIP Code 20906	General	Silver Spring	64,696	Eastern	301/240
ZIP Code 20907	P.O. Box	Silver Spring	0	Eastern	301/240
ZIP Code 20908	P.O. Box	Silver Spring	0	Eastern	301/240
ZIP Code 20910	General	Silver Spring	37,445	Eastern	301/240
ZIP Code 20911	P.O. Box	Silver Spring	0	Eastern	301/240
ZIP Code 20912	General	Takoma Park	24,807	Eastern	301/240
ZIP Code 20913	P.O. Box	Takoma Park	0	Eastern	301/240
ZIP Code 20914	P.O. Box	Silver Spring	0	Eastern	301
ZIP Code 20915	P.O. Box	Silver Spring	0	Eastern	301/240
ZIP Code 20916	P.O. Box	Silver Spring	0	Eastern	301/240
ZIP Code 20918	P.O. Box	Silver Spring	0	Eastern	301/240
ZIP Code 20993	Unique	Silver Spring	0	Eastern	301/240
ZIP Code 20997	Unique	Silver Spring	0	Eastern	301/240

Timezone(s):	Eastern

Population:	971,777 (More Details)
Male Population:	466,402
Female Population:	505,375
Median Age:	39

ZIP Codes:	77
Cities:	30
Counties:	1
Area Codes:	0

Total Area:	507 square miles (county)
Land Area:	493 square miles (county)
Water Area:	14 square miles (county)

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MONTGOMERY, MD Demographic Information

* Demographic data is based on 2010 Census.

Total population of MONTGOMERY County, MD	971,777
Male population of MONTGOMERY County, MD	466,402
Female population of MONTGOMERY County, MD	505,375
Median age (years)	38.5
White Population	558,358
Black Population	167,315
Indian Population	3,639
Asian Population	135,451
Hawaiian Population	522
Hispanic Population	165,398
Median age (Male)	37
Median age (Female)	39.9
Total households	357,086
Family households (families)	244,898
Average household size for MONTGOMERY County, MD	2.7
Average family size of MONTGOMERY County, MD	3.22
Total housing units for MONTGOMERY County, MD	375,905

MONTGOMERY County, MD ZIP Codes

MONTGOMERY County, MD Covers 77 ZIP Codes

MONTGOMERY, MD Demographic Information

MONTGOMERY County, MD Covers 30 Cities