What ZIP codes serve Gaithersburg, MD?

Gaithersburg, MD is served by the following ZIP codes: 20877, 20878, 20879, 20886, 20899.

What is the average temperature in Gaithersburg?

In Gaithersburg, MD, the average annual high temperature is 65°F and the average low is 47°F, with 42.6 inches of annual precipitation.

How do I verify a Gaithersburg address?

Use MailColt's free address verification tool to instantly check any Gaithersburg, MD address for deliverability. Enter the street address, city, state, and ZIP code to get a confidence score and standardized formatting.

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Gaithersburg is the #20 city in Maryland by population, with a population of 164,949 across 5 ZIP codes. Average temperatures range from 46.9°F to 64.6°F, with 42.6" of annual precipitation. The area's largest employment sector is Professional Services, home to 850 businesses.

ZIP Codes

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Income by ZIP Code in Gaithersburg, MD

ZIP Code	Population	Median Income	Median Home Value	Median Rent
20877	39,068	$86,103	$462,500	$1,862
20878	65,236	$142,062	$675,200	$2,188
20879	26,120	$105,109	$433,500	$1,895
20886	34,419	$98,767	$366,400	$1,863
20899	106	$23,917	-	$835

Climate in Gaithersburg, MD

Average monthly temperatures and precipitation.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg High	42°	45°	53°	66°	74°	82°	87°	84°	77°	66°	55°	46°
Avg Low	26°	28°	35°	45°	54°	63°	68°	67°	60°	48°	38°	31°
Precip	3.2"	2.7"	3.7"	3.3"	3.7"	4.1"	4.1"	3.3"	4.2"	3.6"	3.3"	3.5"
Snow	1.9"	2.2"	1.0"	0.0"	-	-	-	-	-	-	0.2"	1.0"

Top Industries in Gaithersburg, MD

Industry	Establishments
Professional, scientific, and technical services	850
Health care and social assistance	452
Construction	418
Administrative and support and waste management and remediation services	407
Management of companies and enterprises	395
Retail trade	389
Other services (except public administration)	369
Accommodation and food services	319
Real estate and rental and leasing	196
Wholesale trade	183

Historic Landmarks in Gaithersburg

Gaithersburg has 5 properties listed on the National Register of Historic Places, including:

Belt, J. A., Building — 227 E. Diamond Ave.
Gaithersburg B & O Railroad Station and Freight Shed — Summit and E. Diamond Aves.
Gaithersburg Latitude Observatory — 100 DeSellum Ave
NIST Historic District — 100 Bureau Dr.
Thomas and Company Cannery — Jct. of W. Diamond and N. Frederick Aves.

All 5 ZIP Codes Serving Gaithersburg, MD

Other Cities in Maryland

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