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US ZIP Code Profile

ZIP Code 20901
Silver Spring, Maryland

ZIP code 20901 is in Silver Spring, located in Montgomery County, Maryland, within the Washington-Arlington-Alexandria metro area. Its 2020 Census population was 36,537. The estimated median adjusted gross income per tax return is $57,587, and about 13% of filers report $200,000 or more.

2020 Population
36,537
Census ZCTA
County
Montgomery
FIPS 24031
Median income (est.)
$57,587
IRS SOI 2022
Land Area
5.384 mi²
+ 0.027 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CitySilver Spring, MD
CountyMontgomery County (FIPS 24031)
StateMaryland (FIPS 24)
Metro Area (MSA)Washington-Arlington-Alexandria, DC-VA-MD-WV Metro Area (47900)
Census Region / DivisionSouth Region · South Atlantic Division
Coordinates39.021496, -77.00978
Land / Water Area5.384 mi² land · 0.027 mi² water

02Income & Economics

Distribution of the 18,610 individual tax returns filed in 20901 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
28.2%
$25K–$50K
18.1%
$50K–$75K
12.3%
$75K–$100K
8.2%
$100K–$200K
20.3%
$200K+
13.0%
The $200,000+ bracket accounts for 44% of 20901's total adjusted gross income, from 13% of returns — a concentration that drives the gap between the median ($57,587) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 20901's IRS income metrics, 2020–2022.

Median income (2021→2022)
$57,587
▲ 5.0%
Filers earning $200K+
13.0%
▲ 0.6 pt
Total filers
18,610
▲ 1.6%
GET /zipc/v2/zipcodes/20901/soi?year=… $50K 2020 $55K 2021 $58K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 20901 ZCTA.

2000
33,793
 
2010
34,832
▲ +3.1%
2020
36,537
▲ +4.9%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 20901. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 20901

Silver Spring and its immediate neighbors, sorted by distance.

3 mi
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Distance from 20901 to any ZIP

Enter a 5-digit ZIP to calculate the distance.

06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortB
USPS Finance Number238478
City AliasesSilver Spring, Takoma Park

07Frequently Asked Questions

What county is ZIP code 20901 in?

ZIP code 20901 is in Montgomery County, Maryland (county FIPS code 24031).

What city is ZIP code 20901?

The primary USPS city for 20901 is Silver Spring, MD.

What metro area (MSA) is 20901 in?

20901 is part of the Washington-Arlington-Alexandria, DC-VA-MD-WV Metro Area (MSA code 47900).

What is the population of ZIP code 20901?

The 2020 Census population of 20901 was 36,537 residents.

What is the median income in ZIP code 20901?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 20901 is about $57,587, with around 13% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.