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/WALKER-MILL

Walker Mill ZIP codes, Maryland

No ZIP code is named for Walker Mill, MD; addresses there use a neighbouring town's name. 2 ZIP codes cover it: 20743 and 20747.

USPS city name
0 ZIP codes
Overlapping the city
2 more
Population
10,931

Walker Mill in numbers

About 10,931 people live in Walker Mill, in 4,624 households. The median household income is $88,333 a year, 15% below the Maryland median of $103,678 (US: $80,734). The median owner-occupied home is valued at $379,100 (10% below the Maryland median), and median gross rent is $1,661 a month. The median age is 42.1; 28.3% of adults 25 and over hold a bachelor's degree or higher (43.4% across Maryland); the average commute takes 39 minutes.

Population10,931Walker Mill10,931
Households4,624Walker Mill4,624
Median age42.1Walker Mill42.1Maryland39.4US 38.9
Median household income$88,333Walker Mill$88,333Maryland$103,678US $80,734
Median home value$379,100Walker Mill$379,100Maryland$419,900US $332,700
Median gross rent$1,661Walker Mill$1,661Maryland$1,705US $1,413
Bachelor's degree or higher28.3%Walker Mill28.3%Maryland43.4%US 35.7%
Mean commute39.4 minWalker Mill39.4 minMaryland31.1 minUS 26.4 min
Population density3,641 / sq miWalker Mill3,641 / sq mi

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

ZIP codes covering Walker Mill

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

ZIP codes overlapping Walker Mill
ZIP City Type Population Median income Median home
20743 Capitol Heights , MD Standard 41,093 $76,466 $341,000
20747 District Heights , MD Standard 38,301 $76,298 $344,800

Map of Walker Mill ZIP codes

The ZIP codes of Walker Mill, 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 Walker Mill

The nearest larger towns are Summerfield (15,065 people, 2.2 mi), Suitland (23,793 people, 2.7 mi) and Largo (12,229 people, 3.0 mi).

Towns near Walker Mill
TownPopulationDistance
District Heights 5,891 1.2 mi
Capitol Heights 4,020 1.2 mi
Peppermill Village 5,238 1.3 mi
Seat Pleasant 4,489 1.5 mi
Forestville 10,495 1.8 mi
Coral Hills 9,756 1.9 mi
Summerfield 15,065 2.2 mi
Suitland 23,793 2.7 mi
Largo 12,229 3.0 mi
Landover 24,514 3.4 mi
Silver Hill 5,193 3.8 mi
Lake Arbor 14,335 3.8 mi
Cheverly 6,096 3.8 mi
Glenarden 6,344 4.0 mi

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

Cite this page

zipcodes.pro. “Walker Mill, MD ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/md/walker-mill

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