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/RIVERDALE

Riverdale ZIP codes, Maryland

Riverdale, MD has 2 ZIP codes: 20737 and 20738. The largest is 20737.

USPS city name
2 ZIP codes
Population
24,489

Riverdale in numbers

About 24,489 people live in Riverdale, in 6,990 households. The median household income is $86,951 a year, 16% below the Maryland median of $103,678 (US: $80,734). The median owner-occupied home is valued at $390,500 (7% below the Maryland median).

Population24,489Riverdale24,489
Households6,990Riverdale6,990
Median household income$86,951Riverdale$86,951Maryland$103,678US $80,734
Median home value$390,500Riverdale$390,500Maryland$419,900US $332,700

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the 2 ZIP codes addressed as Riverdale, medians weighted by households. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Riverdale

ZIP codes with the USPS city name Riverdale
ZIP City Type Population Median income Median home
20737 Riverdale , MD Standard 24,489 $86,951 $390,500
20738 Riverdale , MD No street area — — —

Map of Riverdale ZIP codes

2073720738

The ZIP codes of Riverdale, 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 Riverdale

The nearest larger towns are Landover (24,514 people, 1.9 mi), Washington, DC (681,294 people, 6.5 mi) and Chillum (34,871 people, 6.5 mi).

Towns near Riverdale
TownPopulationDistance
Seat Pleasant 4,489 0.3 mi
Peppermill Village 5,238 0.5 mi
Summerfield 15,065 1.6 mi
Capitol Heights 4,020 1.6 mi
Walker Mill 10,931 1.7 mi
Landover 24,514 1.9 mi
Cheverly 6,096 2.1 mi
Coral Hills 9,756 2.2 mi
District Heights 5,891 2.7 mi
Glenarden 6,344 3.0 mi
Bladensburg 9,583 3.5 mi
Forestville 10,495 3.5 mi
Woodlawn 7,750 3.6 mi
Lake Arbor 14,335 3.6 mi

More nearby: every ZIP code in Prince George's County · Maryland ZIP codes

Cite this page

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

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