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/ROSEMONT

Rosemont ZIP codes, Maryland

No ZIP code is named for Rosemont, MD; addresses there use a neighbouring town's name. 2 ZIP codes cover it: 21716 and 21758. Its area codes are 240, 301 and 227.

USPS city name
0 ZIP codes
Overlapping the city
2 more
Population
310
Area codes
240, 301, 227

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

Rosemont in numbers

About 310 people live in Rosemont, in 133 households. The median household income is $106,250 a year, about the same as the Maryland median of $103,678 (US: $80,734). The median owner-occupied home is valued at $437,900 (4% above the Maryland median). The median age is 56.0; 32.5% of adults 25 and over hold a bachelor's degree or higher (43.4% across Maryland); the average commute takes 36 minutes.

Population310Rosemont310
Households133Rosemont133
Median age56.0Rosemont56.0Maryland39.4US 38.9
Median household income$106,250Rosemont$106,250Maryland$103,678US $80,734
Median home value$437,900Rosemont$437,900Maryland$419,900US $332,700
Bachelor's degree or higher32.5%Rosemont32.5%Maryland43.4%US 35.7%
Mean commute36.0 minRosemont36.0 minMaryland31.1 minUS 26.4 min
Population density558 / sq miRosemont558 / sq mi

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

ZIP codes covering Rosemont

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

ZIP codes overlapping Rosemont
ZIP City Type Population Median income Median home
21716 Brunswick , MD Standard 7,200 $109,382 $361,300
21758 Knoxville , MD Standard 4,409 $111,528 $424,600

Map of Rosemont ZIP codes

2171621758

The ZIP codes of Rosemont, 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 Rosemont

The nearest larger towns are Brunswick (8,450 people, 1.1 mi), Lovettsville, VA (2,719 people, 4.5 mi) and Jefferson (3,314 people, 4.9 mi).

Towns near Rosemont
TownPopulationDistance
Brunswick 8,450 1.1 mi
Lovettsville, VA 2,719 4.5 mi
Jefferson 3,314 4.9 mi
Braddock Heights 2,892 8.7 mi
Middletown 5,014 8.8 mi
Ballenger Creek 26,390 11.3 mi
Boonsboro 3,809 12.4 mi
Shannondale, WV 3,465 13.1 mi
Frederick 83,395 13.1 mi
Ranson, WV 5,729 14.0 mi
Purcellville, VA 8,973 14.4 mi
Charles Town, WV 7,337 14.6 mi
Bartonsville 3,282 14.9 mi
Urbana 14,260 15.0 mi

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

Cite this page

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

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