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/SYKESVILLE

Sykesville ZIP code, Maryland

The ZIP code for Sykesville, MD is 21784, and its area codes are 443, 410 and 667.

USPS city name
1 ZIP code
Population
4,491
Area codes
443, 410, 667

Sykesville in numbers

About 4,491 people live in Sykesville, in 1,446 households. The median household income is $139,556 a year, 35% above the Maryland median of $103,678 (US: $80,734). The median owner-occupied home is valued at $453,400 (8% above the Maryland median), and median gross rent is $1,828 a month. The median age is 34.8; 56.7% of adults 25 and over hold a bachelor's degree or higher (43.4% across Maryland); the average commute takes 31 minutes.

Population4,491Sykesville4,491
Households1,446Sykesville1,446
Median age34.8Sykesville34.8Maryland39.4US 38.9
Median household income$139,556Sykesville$139,556Maryland$103,678US $80,734
Median home value$453,400Sykesville$453,400Maryland$419,900US $332,700
Median gross rent$1,828Sykesville$1,828Maryland$1,705US $1,413
Bachelor's degree or higher56.7%Sykesville56.7%Maryland43.4%US 35.7%
Mean commute30.8 minSykesville30.8 minMaryland31.1 minUS 26.4 min
Population density2,810 / sq miSykesville2,810 / sq mi

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

ZIP codes addressed as Sykesville

ZIP codes with the USPS city name Sykesville
ZIP City Type Population Median income Median home
21784 Sykesville , MD Standard 39,258 $139,395 $491,800

Map of Sykesville ZIP codes

21784

The ZIP codes of Sykesville, 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 Sykesville

The nearest larger towns are Eldersburg (31,695 people, 2.4 mi), Randallstown (35,957 people, 9.1 mi) and Mount Airy (9,805 people, 9.7 mi).

Towns near Sykesville
TownPopulationDistance
Eldersburg 31,695 2.4 mi
Randallstown 35,957 9.1 mi
Mount Airy 9,805 9.7 mi
Ellicott City 75,257 9.9 mi
Reisterstown 25,582 10.1 mi
Owings Mills 37,245 10.1 mi
Milford Mill 30,829 10.9 mi
Garrison 9,469 11.9 mi
Woodlawn 40,379 12.8 mi
Lochearn 27,074 13.2 mi
Columbia 104,338 13.3 mi
Damascus 17,640 13.9 mi
Catonsville 43,368 14.4 mi
Westminster 20,445 14.4 mi

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

Cite this page

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

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