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/JARRETTSVILLE

Jarrettsville ZIP code, Maryland

The ZIP code for Jarrettsville, MD is 21084, and its area codes are 443, 410 and 667.

USPS city name
1 ZIP code
Overlapping the city
2 more
Population
2,560
Area codes
443, 410, 667

Mail addressed to Jarrettsville uses the ZIP code above. 2 more ZIP codes cover part of the city but are addressed as somewhere else; they are listed separately below.

Jarrettsville in numbers

About 2,560 people live in Jarrettsville, in 897 households. The median household income is $146,635 a year, 41% above the Maryland median of $103,678 (US: $80,734). The median owner-occupied home is valued at $476,800 (14% above the Maryland median). The median age is 39.9; 51.6% of adults 25 and over hold a bachelor's degree or higher (43.4% across Maryland); the average commute takes 38 minutes.

Population2,560Jarrettsville2,560
Households897Jarrettsville897
Median age39.9Jarrettsville39.9Maryland39.4US 38.9
Median household income$146,635Jarrettsville$146,635Maryland$103,678US $80,734
Median home value$476,800Jarrettsville$476,800Maryland$419,900US $332,700
Bachelor's degree or higher51.6%Jarrettsville51.6%Maryland43.4%US 35.7%
Mean commute37.6 minJarrettsville37.6 minMaryland31.1 minUS 26.4 min
Population density296 / sq miJarrettsville296 / sq mi

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

ZIP codes addressed as Jarrettsville

ZIP codes with the USPS city name Jarrettsville
ZIP City Type Population Median income Median home
21084 Jarrettsville , MD Standard 7,070 $121,509 $448,400

Other ZIP codes overlapping Jarrettsville

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

ZIP codes overlapping Jarrettsville
ZIP City Type Population Median income Median home
21047 Fallston , MD Standard 13,852 $157,500 $552,500
21050 Forest Hill , MD Standard 17,466 $125,208 $456,800

Map of Jarrettsville ZIP codes

21084

The ZIP codes of Jarrettsville, 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 Jarrettsville

The nearest larger towns are Fallston (10,013 people, 5.0 mi), Bel Air North (31,302 people, 6.2 mi) and Bel Air (10,585 people, 8.1 mi).

Towns near Jarrettsville
TownPopulationDistance
Fallston 10,013 5.0 mi
Bel Air North 31,302 6.2 mi
Bel Air 10,585 8.1 mi
Pleasant Hills 3,836 9.0 mi
Kingsville 4,687 10.5 mi
Bel Air South 58,137 10.8 mi
Cockeysville 23,962 12.0 mi
Timonium 10,304 12.7 mi
Hampton 5,372 13.2 mi
Perry Hall 29,105 13.4 mi
Honeygo 12,250 13.7 mi
Carney 28,343 13.8 mi
Abingdon 5,019 14.2 mi
Joppatowne 14,237 14.2 mi

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

Cite this page

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

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