🇺🇸 United States ZIP Code

STANDARD

20903

Silver Spring

ZIP Code 20903 is a standard zip code serving Silver Spring, Silver Spring, Maryland (MD), in Montgomery County, United States. It has an estimated population of 23,625 with a median household income of $56,903. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Maryland (MD)
County: Montgomery
City: Silver Spring
Timezone: America/New_York

Coordinates

Latitude: 39.009500
Longitude: -76.984600

Geographic Details

Land Area: 3.60 mi²
Population Density: 6554.0 people per mi² (95th percentile)
Bounding Box: 39.040676°N, 38.990394°S, -76.962097°E, -76.999565°W

With 23,625 residents spread across 3.60 square miles, this area has a population density of 6554.0 people per square mile.

Demographics

23,625

Population

80th percentile

$56,903

Median Income

65th percentile

$326,500

Median Home Value

85th percentile

3.60 mi²

Land Area

The median household income in 20903 is $56,903, and the median home value is $326,500.

Housing

7,318

Total Units

6,995

Occupied Units

95.6%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Silver Spring, MD.

20901

Silver Spring

20902

Silver Spring

20904

Silver Spring

20905

Silver Spring

20906

Silver Spring

20907

Silver Spring

20908

Silver Spring

20910

Silver Spring

20911

Silver Spring

20914

Silver Spring

Similar ZIP Codes in Maryland

ZIP codes with similar median household income in Maryland.

21078

Havre De Grace

$65,344

21061

Glen Burnie

$60,430

21207

Gwynn Oak

$51,179

21211

Baltimore

$55,819

21034

Darlington

$60,871

20782

Hyattsville

$59,574

20877

Gaithersburg

$64,976

21629

Denton

$64,901

Frequently Asked Questions

What information is available for each ZIP code?

Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).

What are the different types of ZIP codes?

There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.

How often is ZIP code data updated?

ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.

What is population density and why does it matter?

Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.

How are ZIP code boundaries determined?

ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.

What does median household income tell me about a ZIP code?

Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.