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/ELLICOTT-CITY

Ellicott City ZIP codes, Maryland

Ellicott City, MD has 3 ZIP codes (21043, 21042 and 21041) and area codes 410, 443 and 667. The largest is 21043.

USPS city name
3 ZIP codes
Overlapping the city
3 more
Population
75,257
Area codes
410, 443, 667

Mail addressed to Ellicott City uses the ZIP codes above. 3 more ZIP codes cover part of the city but are addressed as somewhere else; they are listed separately below.

Ellicott City in numbers

About 75,257 people live in Ellicott City, in 26,919 households, the 7th-largest of Maryland's 527 census places. The median household income is $156,964 a year, 51% above the Maryland median of $103,678 (US: $80,734). The median owner-occupied home is valued at $661,700 (58% above the Maryland median), and median gross rent is $2,061 a month. The median age is 43.2; 68.8% of adults 25 and over hold a bachelor's degree or higher (43.4% across Maryland); the average commute takes 28 minutes.

Population75,257Ellicott City75,257
Households26,919Ellicott City26,919
Median age43.2Ellicott City43.2Maryland39.4US 38.9
Median household income$156,964Ellicott City$156,964Maryland$103,678US $80,734
Median home value$661,700Ellicott City$661,700Maryland$419,900US $332,700
Median gross rent$2,061Ellicott City$2,061Maryland$1,705US $1,413
Bachelor's degree or higher68.8%Ellicott City68.8%Maryland43.4%US 35.7%
Mean commute28.2 minEllicott City28.2 minMaryland31.1 minUS 26.4 min
Population density2,508 / sq miEllicott City2,508 / sq mi

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

ZIP codes addressed as Ellicott City

ZIP codes with the USPS city name Ellicott City
ZIP City Type Population Median income Median home
21043 Ellicott City , MD Standard 48,525 $148,125 $620,900
21042 Ellicott City , MD Standard 43,327 $190,061 $706,400
21041 Ellicott City , MD No street area — — —

Other ZIP codes overlapping Ellicott City

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

ZIP codes overlapping Ellicott City
ZIP City Type Population Median income Median home
21045 Columbia , MD Standard 40,034 $118,563 $453,700
21104 Marriottsville , MD Standard 6,052 $191,804 $680,200
21163 Woodstock , MD Standard 7,539 $134,672 $602,800

Map of Ellicott City ZIP codes

210432104221041

The ZIP codes of Ellicott City, 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 Ellicott City

The nearest larger towns are Columbia (104,338 people, 5.4 mi), Baltimore (573,243 people, 12 mi) and Silver Spring (81,462 people, 21 mi).

Towns near Ellicott City
TownPopulationDistance
Catonsville 43,368 5.0 mi
Woodlawn 40,379 5.0 mi
Columbia 104,338 5.4 mi
Ilchester 28,364 5.7 mi
Milford Mill 30,829 6.0 mi
Randallstown 35,957 6.8 mi
Elkridge 26,283 7.5 mi
Lochearn 27,074 7.5 mi
Arbutus 22,507 7.9 mi
Savage 8,239 9.0 mi
Jessup 9,931 9.3 mi
Lansdowne 7,876 9.5 mi
Fulton 5,677 9.5 mi
Owings Mills 37,245 9.5 mi

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

Cite this page

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

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