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/ROSEDALE

Rosedale ZIP code, Maryland

The ZIP code for Rosedale, MD is 21237, and its area codes are 410, 443 and 667.

USPS city name
1 ZIP code
Overlapping the city
2 more
Population
20,002
Area codes
410, 443, 667

NANPA lists no telephone rate centre for Rosedale itself, so these are the area codes of the nearest one, Baltimore (2.3 miles). A town on an area-code boundary can differ from its neighbour.

Mail addressed to Rosedale uses the ZIP code above. 2 more ZIP codes cover part of the city but are addressed as somewhere else; they are listed separately below.

Rosedale in numbers

About 20,002 people live in Rosedale, in 7,446 households. The median household income is $85,711 a year, 17% below the Maryland median of $103,678 (US: $80,734). The median owner-occupied home is valued at $276,200 (34% below the Maryland median), and median gross rent is $1,378 a month. The median age is 40.7; 22.2% of adults 25 and over hold a bachelor's degree or higher (43.4% across Maryland); the average commute takes 29 minutes.

Population20,002Rosedale20,002
Households7,446Rosedale7,446
Median age40.7Rosedale40.7Maryland39.4US 38.9
Median household income$85,711Rosedale$85,711Maryland$103,678US $80,734
Median home value$276,200Rosedale$276,200Maryland$419,900US $332,700
Median gross rent$1,378Rosedale$1,378Maryland$1,705US $1,413
Bachelor's degree or higher22.2%Rosedale22.2%Maryland43.4%US 35.7%
Mean commute29.0 minRosedale29.0 minMaryland31.1 minUS 26.4 min
Population density2,914 / sq miRosedale2,914 / sq mi

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

ZIP codes addressed as Rosedale

ZIP codes with the USPS city name Rosedale
ZIP City Type Population Median income Median home
21237 Rosedale , MD Standard 31,425 $91,693 $295,600

Other ZIP codes overlapping Rosedale

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

ZIP codes overlapping Rosedale
ZIP City Type Population Median income Median home
21206 Baltimore , MD Standard 48,902 $64,531 $216,100
21221 Essex , MD Standard 43,487 $67,340 $271,500

Map of Rosedale ZIP codes

21237

The ZIP codes of Rosedale, 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 Rosedale

The nearest larger towns are Essex (40,580 people, 3.9 mi), Dundalk (65,969 people, 4.2 mi) and Middle River (31,712 people, 4.3 mi).

Towns near Rosedale
TownPopulationDistance
Overlea 13,035 2.6 mi
Rossville 16,059 2.6 mi
Essex 40,580 3.9 mi
Dundalk 65,969 4.2 mi
Middle River 31,712 4.3 mi
Parkville 30,549 4.5 mi
White Marsh 10,932 4.6 mi
Carney 28,343 5.4 mi
Perry Hall 29,105 5.7 mi
Baltimore 573,243 5.8 mi
Bowleys Quarters 7,006 6.8 mi
Honeygo 12,250 6.8 mi
Hampton 5,372 7.4 mi
Towson 58,679 7.5 mi

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

Cite this page

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

Underlying data is public domain or openly licensed — sources, vintages and licences.