ZIP code 20855 is in Montgomery County, Maryland. About 17,279 people live here in 6,437 households. The median home value is $640,300 and the median household income $149,110. The average commute takes about 39 minutes.
ZIP code tabulation area · ACS 2020–2024 · Updated October 24, 2026
97%of households have broadbandhome internet subscription
20855 in MarylandZIP codes coloured by median household income
20855
<$45K$125K+
Sources: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates · U.S. Census Bureau, 2024 Gazetteer and 2020 ZCTA relationship files
People.
17,279 residents in 6,437 households, next to the Montgomery County figure.
21%
under 18
HereMontgomery County
19%
aged 18–34
HereMontgomery County
20%
aged 65 and over
HereMontgomery County
23%
of households are people living alone
HereMontgomery County
60%
of households are married couples
HereMontgomery County
Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates
Homes.
6,525 housing units; the median owner-occupied home is valued at $640,300 (±$21,661).
74%
of households own their home
HereMontgomery County
63%
of homes are detached single-family houses
HereMontgomery County
16%
are in buildings with 5 or more units
HereMontgomery County
0%
are mobile homes
HereMontgomery County
1%
of housing units are vacant
HereMontgomery County
$2,413
median gross rent a month
HereMontgomery County
When homes were built
2020 or later5%
2010–201919%
2000–20093%
1990–19994%
1980–198926%
1970–197922%
1960–196918%
1950–19592%
1940–19491%
1939 or earlier1%
Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates
Income and work.
Household income and work, in 2024 dollars; median household income ±$11,297.
$149,110
median household income
HereMontgomery County
5.2%
of people live below the poverty line
HereMontgomery County
4.0%
unemployment rate
HereMontgomery County
67%
of adults 25+ hold a bachelor’s degree or higher
HereMontgomery County
The poverty rate uses the federal poverty thresholds, which vary with family size. It says nothing on its own about what a neighborhood is like to live in.
Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates
Getting around.
How workers aged 16 and over get to work, and how long it takes.
39 min
average commute to work
HereMontgomery County
30%
of commuters travel 45 minutes or more
HereMontgomery County
59%
of workers drive or carpool
HereMontgomery County
9%
take public transportation
HereMontgomery County
1%
walk or bike
HereMontgomery County
30%
work from home
HereMontgomery County
7%
of households have no car
HereMontgomery County
Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates
Internet.
Home internet subscriptions.
97%
of households have a broadband subscription
HereMontgomery County
3%
have no internet access at home
HereMontgomery County
American Community Survey figures are estimates from a rolling sample, averaged over 2020–2024. Each comes with a margin of error, which is wider in places with fewer people.
Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates
Businesses in 20855.
480 business establishments with paid employees have an address in this ZIP code.
Grocery stores and supermarkets4
Convenience stores0
Pharmacies and drug stores0
Retail bakeries0
Full-service restaurants7
Limited-service restaurants15
Coffee shops and snack bars0
Bars0
Physicians’ offices0
Dentists’ offices5
Child care centers12
Gyms and fitness centers4
Movie theaters0
Museums0
Counts are business establishments with paid employees, by the ZIP code of their address. Self-employed people without staff, and public facilities such as libraries, are not included.
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023
Health.
Estimated share of adults in 20855, next to the national figure.
77%
had a routine checkup in the past year
HereUnited States
70%
visited a dentist in the past year
HereUnited States
8%
of 18–64s have no health insurance
HereUnited States
18%
get no leisure-time physical activity
HereUnited States
33%
usually sleep less than 7 hours
HereUnited States
7%
smoke
HereUnited States
24%
have obesity
HereUnited States
10%
have diagnosed diabetes
HereUnited States
31%
have high blood pressure
HereUnited States
15%
report fair or poor general health
HereUnited States
12%
report frequent mental distress
HereUnited States
32%
often feel lonely
HereUnited States
11%
faced food insecurity in the past year
HereUnited States
9%
faced housing insecurity in the past year
HereUnited States
6%
lacked reliable transportation in the past year
HereUnited States
These are model-based estimates for adults from the CDC’s PLACES project, combining national health surveys with local population data. They are not counts of local patients, and small differences between nearby ZIP codes are within the margin of the model.
Source: Centers for Disease Control and Prevention, PLACES 2025 release (ZCTA), public domain
Nearest public schools.
In a straight line from the center of the ZIP code. Attendance zones are set by each school district.
Redland MiddleRockville0.2 mi
Sequoyah ElementaryDerwood0.7 mi
Col. Zadok Magruder HighRockville0.8 mi
Candlewood ElementaryRockville1.0 mi
Mill Creek Towne ElementaryRockville1.3 mi
Source: National Center for Education Statistics, EDGE public school locations 2024–25
Nearby ZIP codes.
ZIP codes here are the Census Bureau’s ZIP Code Tabulation Areas, which closely match the postal ZIP codes used for addresses.
20855