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/VA/COUNTRYSIDE

Countryside ZIP codes, Virginia

No ZIP code is named for Countryside, VA; addresses there use a neighbouring town's name. The ZIP code covering it is 20165. Its area codes are 703 and 571.

USPS city name
0 ZIP codes
Overlapping the city
1 more
Population
9,661
Area codes
703, 571

NANPA lists no telephone rate centre for Countryside itself, so these are the area codes of the nearest one, Dulles (4.3 miles). A town on an area-code boundary can differ from its neighbour.

Countryside in numbers

About 9,661 people live in Countryside, in 3,450 households. The median household income is $148,810 a year, 60% above the Virginia median of $93,170 (US: $80,734). The median owner-occupied home is valued at $630,200 (64% above the Virginia median), and median gross rent is $2,234 a month. The median age is 36.4; 60.6% of adults 25 and over hold a bachelor's degree or higher (42.2% across Virginia); the average commute takes 27 minutes.

Population9,661Countryside9,661
Households3,450Countryside3,450
Median age36.4Countryside36.4Virginia39.0US 38.9
Median household income$148,810Countryside$148,810Virginia$93,170US $80,734
Median home value$630,200Countryside$630,200Virginia$383,700US $332,700
Median gross rent$2,234Countryside$2,234Virginia$1,579US $1,413
Bachelor's degree or higher60.6%Countryside60.6%Virginia42.2%US 35.7%
Mean commute26.6 minCountryside26.6 minVirginia27.3 minUS 26.4 min
Population density3,764 / sq miCountryside3,764 / sq mi

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

ZIP codes covering Countryside

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

ZIP codes overlapping Countryside
ZIP City Type Population Median income Median home
20165 Sterling , VA Standard 34,088 $183,076 $704,800

Map of Countryside ZIP codes

20165

The ZIP codes of Countryside, VA, 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 Countryside

The nearest larger towns are Cascades (12,357 people, 1.4 mi), Sugarland Run (12,629 people, 2.8 mi) and Lowes Island (11,018 people, 3.1 mi).

Towns near Countryside
TownPopulationDistance
Cascades 12,357 1.4 mi
University Center 3,923 1.9 mi
Dulles Town Center 5,464 2.0 mi
One Loudoun 3,309 2.3 mi
Sugarland Run 12,629 2.8 mi
Lowes Island 11,018 3.1 mi
Sterling 32,411 3.3 mi
Ashburn 46,026 3.6 mi
Dranesville 11,828 4.5 mi
Lansdowne 12,328 4.5 mi
Belmont 9,729 4.7 mi
Moorefield 6,123 5.7 mi
Herndon 24,672 5.8 mi
Darnestown, MD 7,051 6.0 mi

More nearby: every ZIP code in Loudoun County · Virginia ZIP codes

Cite this page

zipcodes.pro. “Countryside, VA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/va/countryside

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