Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/MD/DARNESTOWN

Darnestown ZIP codes, Maryland

No ZIP code is named for Darnestown, MD; addresses there use a neighbouring town's name. 3 ZIP codes cover it: 20878, 20874 and 20854. Its area codes are 240, 301 and 227.

USPS city name
0 ZIP codes
Overlapping the city
3 more
Population
7,051
Area codes
240, 301, 227

NANPA lists no telephone rate centre for Darnestown itself, so these are the area codes of the nearest one, Gaithersburg (0.0 miles). A town on an area-code boundary can differ from its neighbour.

Darnestown in numbers

About 7,051 people live in Darnestown, in 2,335 households. The median household income is $232,135 a year, 2.2 times the Maryland median of $103,678 (US: $80,734). The median owner-occupied home is valued at $958,200 (2.3 times the Maryland median), and median gross rent is $3,500+ a month. The median age is 47.1; 72.3% of adults 25 and over hold a bachelor's degree or higher (43.4% across Maryland); the average commute takes 37 minutes.

Population7,051Darnestown7,051
Households2,335Darnestown2,335
Median age47.1Darnestown47.1Maryland39.4US 38.9
Median household income$232,135Darnestown$232,135Maryland$103,678US $80,734
Median home value$958,200Darnestown$958,200Maryland$419,900US $332,700
Median gross rent$3,500+Darnestown$3,500+Maryland$1,705US $1,413
Bachelor's degree or higher72.3%Darnestown72.3%Maryland43.4%US 35.7%
Mean commute36.9 minDarnestown36.9 minMaryland31.1 minUS 26.4 min
Population density430 / sq miDarnestown430 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Darnestown CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes covering Darnestown

These ZIP codes cover part of Darnestown but are addressed as somewhere else.

ZIP codes overlapping Darnestown
ZIP City Type Population Median income Median home
20854 Potomac , MD Standard 50,498 $250,000+ $1,165,400
20874 Germantown , MD Standard 62,738 $115,022 $399,000
20878 Gaithersburg , MD Standard 66,115 $144,313 $715,800

Map of Darnestown ZIP codes

208542087420878

The ZIP codes of Darnestown, MD, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Darnestown

The nearest larger towns are Lowes Island, VA (11,018 people, 3.6 mi), Travilah (11,721 people, 3.9 mi) and North Potomac (23,922 people, 4.0 mi).

Towns near Darnestown
TownPopulationDistance
Lowes Island, VA 11,018 3.6 mi
Travilah 11,721 3.9 mi
North Potomac 23,922 4.0 mi
Sugarland Run, VA 12,629 4.9 mi
Cascades, VA 12,357 4.9 mi
Great Falls, VA 15,228 5.3 mi
Countryside, VA 9,661 6.0 mi
Poolesville 5,764 6.4 mi
Germantown 90,719 6.4 mi
Dulles Town Center, VA 5,464 7.1 mi
Dranesville, VA 11,828 7.1 mi
University Center, VA 3,923 7.4 mi
Gaithersburg 69,825 7.5 mi
Sterling, VA 32,411 7.7 mi

More nearby: every ZIP code in Montgomery County · Maryland ZIP codes

Cite this page

zipcodes.pro. “Darnestown, MD ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/md/darnestown

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