ZIP code 20877 is in Montgomery County, Maryland. About 38,546 people live here in 12,519 households. The median home value is $474,800 and the median household income $92,800. The average commute takes about 34 minutes.
ZIP code tabulation area · ACS 2020–2024 · Updated October 24, 2026
94%of households have broadbandhome internet subscription
20877 in MarylandZIP codes coloured by median household income
20877
<$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.
38,546 residents in 12,519 households, next to the Montgomery County figure.
25%
under 18
HereMontgomery County
22%
aged 18–34
HereMontgomery County
15%
aged 65 and over
HereMontgomery County
27%
of households are people living alone
HereMontgomery County
46%
of households are married couples
HereMontgomery County
Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates
Homes.
13,272 housing units; the median owner-occupied home is valued at $474,800 (±$18,210).
43%
of households own their home
HereMontgomery County
23%
of homes are detached single-family houses
HereMontgomery County
50%
are in buildings with 5 or more units
HereMontgomery County
0%
are mobile homes
HereMontgomery County
6%
of housing units are vacant
HereMontgomery County
$1,887
median gross rent a month
HereMontgomery County
When homes were built
2020 or later1%
2010–201913%
2000–200914%
1990–199910%
1980–198920%
1970–197923%
1960–19699%
1950–19595%
1940–19492%
1939 or earlier4%
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 ±$12,435.
$92,800
median household income
HereMontgomery County
12.0%
of people live below the poverty line
HereMontgomery County
6.2%
unemployment rate
HereMontgomery County
33%
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.
34 min
average commute to work
HereMontgomery County
26%
of commuters travel 45 minutes or more
HereMontgomery County
68%
of workers drive or carpool
HereMontgomery County
10%
take public transportation
HereMontgomery County
2%
walk or bike
HereMontgomery County
17%
work from home
HereMontgomery County
15%
of households have no car
HereMontgomery County
Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates
Internet.
Home internet subscriptions.
94%
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 20877.
1,151 business establishments with paid employees have an address in this ZIP code.
Grocery stores and supermarkets13
Convenience stores4
Pharmacies and drug stores5
Retail bakeries0
Full-service restaurants30
Limited-service restaurants43
Coffee shops and snack bars9
Bars3
Physicians’ offices30
Dentists’ offices32
Child care centers11
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 20877, next to the national figure.
74%
had a routine checkup in the past year
HereUnited States
58%
visited a dentist in the past year
HereUnited States
18%
of 18–64s have no health insurance
HereUnited States
27%
get no leisure-time physical activity
HereUnited States
37%
usually sleep less than 7 hours
HereUnited States
10%
smoke
HereUnited States
30%
have obesity
HereUnited States
12%
have diagnosed diabetes
HereUnited States
33%
have high blood pressure
HereUnited States
22%
report fair or poor general health
HereUnited States
15%
report frequent mental distress
HereUnited States
37%
often feel lonely
HereUnited States
23%
faced food insecurity in the past year
HereUnited States
19%
faced housing insecurity in the past year
HereUnited States
10%
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.
Gaithersburg ElementaryGaithersburg0.2 mi
Gaithersburg MiddleGaithersburg0.3 mi
Gaithersburg HighGaithersburg0.3 mi
Harriet R. Tubman ElementaryGaithersburg0.7 mi
Summit Hall ElementaryGaithersburg0.9 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.
20877