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/BALDWIN

Baldwin ZIP code, Maryland

The ZIP code for Baldwin, MD is 21013, and its area codes are 443, 410 and 667.

USPS city name
1 ZIP code
Population
5,610
Area codes
443, 410, 667

NANPA lists no telephone rate centre for Baldwin itself, so these are the area codes of the nearest one, Fallston (3.0 miles). A town on an area-code boundary can differ from its neighbour.

Baldwin in numbers

About 5,610 people live in Baldwin, in 1,843 households. The median household income is $171,354 a year, 65% above the Maryland median of $103,678 (US: $80,734). The median owner-occupied home is valued at $572,100 (36% above the Maryland median).

Population5,610Baldwin5,610
Households1,843Baldwin1,843
Median household income$171,354Baldwin$171,354Maryland$103,678US $80,734
Median home value$572,100Baldwin$572,100Maryland$419,900US $332,700

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the ZIP code addressed as Baldwin. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Baldwin

ZIP codes with the USPS city name Baldwin
ZIP City Type Population Median income Median home
21013 Baldwin , MD Standard 5,610 $171,354 $572,100

Map of Baldwin ZIP codes

21013

The ZIP codes of Baldwin, 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 Baldwin

The nearest larger towns are Fallston (10,013 people, 3.2 mi), Bel Air North (31,302 people, 6.9 mi) and Perry Hall (29,105 people, 7.3 mi).

Towns near Baldwin
TownPopulationDistance
Fallston 10,013 3.2 mi
Kingsville 4,687 5.2 mi
Pleasant Hills 3,836 5.5 mi
Jarrettsville 2,560 6.2 mi
Bel Air North 31,302 6.9 mi
Hampton 5,372 7.2 mi
Perry Hall 29,105 7.3 mi
Timonium 10,304 7.4 mi
Carney 28,343 7.6 mi
Cockeysville 23,962 7.8 mi
Bel Air 10,585 7.9 mi
Honeygo 12,250 8.0 mi
Lutherville 6,574 9.1 mi
White Marsh 10,932 9.1 mi

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

Cite this page

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

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