20904 ZIP Code — Silver Spring, MD

Montgomery County, Maryland

ZIP code 20904 is located in Silver Spring, Maryland, within Montgomery County. It covers approximately 13.73 square miles and serves a population of 56,532 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 301.

About ZIP code 20904

The housing stock consists of a significant share of large multi-unit buildings. Most homes were built in the 1980s, giving the area an established character. Median home value is $489,100. Owner-occupancy sits near the national average at 52%.

The gap between median ($90,926) and mean household income suggests income inequality — a small number of higher earners pull the average up. 34% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 35 minutes is near the national average.

Educational attainment is high — 50% of residents hold a bachelor's degree or higher, well above the national average of 33%.

56,532

population

13.73

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

20904 ZIP code map

Cities in ZIP code 20904

Below are the cities the US Postal Service accepts for ZIP code 20904. Using any city not on this list may result in mail delivery delays.

City	Status
Silver Spring	Acceptable
Silver Spring	Acceptable
Silver Spring	Preferred

Nearby ZIP codes

20993 Silver Spring (2 mi) 20901 Silver Spring (3 mi) 20903 Silver Spring (3.3 mi) 20905 Silver Spring (3.6 mi) 20905 Silver Spring (3.6 mi) 20902 Silver Spring (3.8 mi) 20783 Hyattsville (4 mi) 20866 Burtonsville (4.2 mi) 20868 Spencerville (4.3 mi) 20697 Southern Md Facility (4.3 mi) 20906 Silver Spring (4.6 mi) 20897 Suburb Maryland Fac (4.6 mi)

Demographics updated 05/2026

Population
Total population	56,532
Population density	4,117 / sq mi
State FIPS	24
County FIPS	031

Geography
Land area	13.73 sq mi
Water area	0.04 sq mi
Latitude	39.0612
Longitude	-76.9789
Timezone	Eastern (ET)
Area code	301

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	27.5%	20.6%	28.2%
$50k – $100k	29.3%	24.2%	28.2%
$100k – $200k	29.8%	31.9%	30.1%
Over $200k	13.4%	23.3%	13.4%

Demographics & statistics

56,532

Population

4,117

People per sq mi

40.9

Median age

$90,926

Median household income

$46,780

Per capita income

$489,100

Median home value

$1,867

Median monthly rent

51.8%

Home ownership

8.9%

Poverty rate

6.2%

Unemployment

12,165

Housing units

49.9%

Bachelor's or higher

Age distribution

Male Female

1,739

Under 5

1,981

1,701

5–9

1,937

1,609

10–14

1,832

1,474

15–19

1,678

1,632

20–24

1,859

3,120

25–34

3,554

3,241

35–44

3,692

3,116

45–54

3,549

1,502

55–59

1,710

1,872

60–64

2,132

2,612

65–74

2,976

1,310

75–84

1,492

1,502

85+

1,710

← Male

Female →

Age summary

Group	Count	%
Under 18	12,837	22.7%
18 and over	43,695	77.3%
65 and over	11,602	20.5%
Median age	40.9 years

Race & ethnicity

Black or African American 45.4%

White 22.4%

Asian 10.7%

Hispanic or Latino 9.2%

Other race 6.5%

Two or more races 5.3%

American Indian / Alaska Native 0.5%

Group	Count	%
Black or African American	28,270	45.4%
White	13,940	22.4%
Asian	6,638	10.7%
Hispanic or Latino	5,748	9.2%
Other race	4,029	6.5%
Two or more races	3,327	5.3%
American Indian / Alaska Native	300	0.5%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	27.5%	20.6%	28.2%
$50k – $100k	29.3%	24.2%	28.2%
$100k – $200k	29.8%	31.9%	30.1%
Over $200k	13.4%	23.3%	13.4%

Under $10k 3.1%

$10k–$15k 2.6%

$15k–$25k 4.5%

$25k–$35k 6.2%

$35k–$50k 10.1%

$50k–$75k 15.3%

$75k–$100k 13.2%

$100k–$150k 18.1%

$150k–$200k 9.8%

$200k+ 17.3%

Range	% of households
Under $10k	3.1%
$10k–$15k	2.6%
$15k–$25k	4.5%
$25k–$35k	6.2%
$35k–$50k	10.1%
$50k–$75k	15.3%
$75k–$100k	13.2%
$100k–$150k	18.1%
$150k–$200k	9.8%
$200k+	17.3%
Median income	$90,926

Housing

Home values

Under $50k 1.9%

$50k–$100k 0.4%

$100k–$150k 1.3%

$150k–$200k 1.7%

$200k–$300k 7.6%

$300k–$500k 40.1%

$500k–$1M 45.8%

$1M+ 1.2%

Housing overview

Metric	Value
Median home value	$489,100
Median rent / month	$1,867
Owner occupied	51.8%
Renter occupied	48.2%
Vacant	5.2%
Single-family detached	37.3%
Large apartment buildings	20.8%
Mobile homes	0.1%
Median rooms	5.4
Avg household size (owned)	2.86

Year built

Era	%
2020 or later	0.2%
2010–2019	2.4%
2000–2009	12.8%
1990–1999	9.7%
1980–1989	33.1%
1970–1979	14.3%
1960–1969	16.9%
1950–1959	7.0%
1940–1949	2.1%
1939 or earlier	1.7%

Bedrooms

Size	% of units
No bedroom (studio)	3.1%
1 bedroom	15.9%
2 bedrooms	28.4%
3 bedrooms	21.0%
4 bedrooms	21.5%
5+ bedrooms	10.1%

Vehicles per household

Vehicles	% of households
No vehicle	12.0%
1 vehicle	36.0%
2 vehicles	35.0%
3 or more	17.0%

Heating fuel

Fuel type	%
Utility gas	45.7%
Electricity	50.7%
Propane / LP gas	0.6%
Fuel oil	1.3%
Wood	0.1%
Solar	0.6%
No fuel used	0.7%

Households & families

Household type	Count	%
Married-couple family	9,452	44.6%
Cohabiting couple	957	4.5%
Male householder, no spouse	3,257	15.4%
Female householder, no spouse	7,541	35.6%
Households with children under 18	6,705	31.6%
Households with seniors (65+)	8,186	38.6%
Average household size	2.63

Marital status

Status	Male	Female
Never married	35.9%	31.1%
Married	51.1%	42.6%
Separated	1.0%	2.3%
Widowed	3.2%	12.6%
Divorced	8.9%	11.4%

Education

Less than 9th grade 4.5%

Some HS, no diploma 4.4%

HS graduate 18.5%

Some college, no degree 16.0%

Associate's degree 6.6%

Bachelor's degree 25.9%

Graduate / professional 24.0%

Metric	%
HS diploma or higher	91.1%
Bachelor's or higher	49.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	689	4.8%
Kindergarten	943	6.6%
Elementary school	5,447	38.0%
High school	2,663	18.6%
College / grad school	4,596	32.1%

Employment

Industry of employment

Education & healthcare 26.9%

Professional & management 17.6%

Public administration 10.0%

Retail trade 9.4%

Other services 8.2%

Arts, food & hospitality 7.5%

Transportation & utilities 6.3%

Construction 5.5%

Finance & real estate 4.3%

Manufacturing 2.1%

Information 1.4%

Wholesale trade 0.9%

Occupation

Category	%
Management, business & arts	48.1%
Service	19.0%
Sales & office	16.4%
Natural resources & construction	6.0%
Production & transportation	10.5%

Employment type

Type	%
Private sector	74.4%
Government	18.0%
Self-employed	7.3%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	64.2%
Carpool	9.6%
Public transit	7.3%
Walk	0.7%
Work from home	15.9%
Other means	2.2%
Avg commute (minutes)	34.5

Poverty

All people 8.9%

Under 18 years 10.9%

18 and over 8.3%

Married-couple families 3.5%

Female-led households 13.7%

Income support

Source	% of households
Social Security	34.1%
Retirement income	29.2%
Supplemental Security	3.7%
Cash public assistance	2.9%
Food stamps / SNAP	10.4%

Health indicators

Condition	%
Obesity	23.9%
High blood pressure	31.9%
High cholesterol	32.2%
Diabetes	9.5%
Heart disease	5.1%
Stroke	2.8%
Asthma	8.9%
Arthritis	19.8%
Kidney disease	2.7%
Pulmonary disease	4.3%
Cancer	6.1%

Behavior / access	%
Smoking	9.9%
Binge drinking	11.0%
No physical activity	19.3%
Less than 7 hrs sleep	32.7%
Depression	14.6%
Fair or poor health	11.0%
Poor mental health	11.8%
Poor physical health	7.0%
No health insurance	13.0%
Visited doctor (checkup)	75.8%
Visited dentist	65.8%
Cholesterol screening	93.2%
Teeth loss	7.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,975	4.5%

Disability	%
Any disability	11.2%
Under 18	4.7%
18–64 years	6.2%
65 and over	32.7%

Health insurance coverage

Type	%
Private insurance	63.9%
Public insurance	44.7%
No insurance	6.8%
Uninsured under 19	3.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	52,812	93.4%
Spanish	8,677	16.4%
Other Indo-European	2,786	5.3%
Asian & Pacific Islander	2,109	4.0%
Other languages	1,987	3.8%

Place of birth & citizenship

Origin	Count	%
Native born (US)	34,853	61.7%
Born in same state	33,511	59.3%
Born in different state	15,162	26.8%
Foreign born	1,342	2.4%
Naturalized citizen	21,679	38.3%
Not a US citizen	14,147	65.3%

Ancestry

Ancestry	Count	%
French	2,559	4.5%
Italian	2,247	4%
Arab	1,423	2.5%
English	157	0.3%
Polish	108	0.2%

Ancestry	Count	%
German	58	0.1%
Irish	52	0.1%
Dutch	32	0.1%
Norwegian	31	0.1%

Technology access

Metric	% of households
Computer access	37.5%
Internet access	95.7%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 20904

What part of Silver Spring is ZIP code 20904?

ZIP code 20904 covers a portion of Silver Spring, Maryland, within Montgomery County.

What county is ZIP code 20904 in?

ZIP code 20904 falls within Montgomery County, Maryland.

How educated is the population of ZIP code 20904?

50% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

What is the typical home value in ZIP code 20904?

The median home value in ZIP code 20904 is $489,100.

What is the population of ZIP code 20904?

ZIP code 20904 has an estimated population of 56,532 residents, with a density of 4,118 people per square mile.

What is the median household income in ZIP code 20904?

The median household income in ZIP code 20904 is $90,926, above the national median of ~$75,000.

What timezone is ZIP code 20904 in?

ZIP code 20904 observes the EST timezone.