20877

Zip code 20877: Gaithersburg, Maryland

Q: What city is zip code 20877?

20877 is assigned to Gaithersburg, Maryland. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 20877 in?

20877 is in Montgomery County, Maryland.

Q: What is the population of 20877?

About 38,546 people live in 20877, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 20877?

The median household income in 20877 is $92,800.

Q: What zip codes are near 20877?

The closest zip codes to 20877 are 20813, 20827, 20848, 20859, 20875.

Residential delivery areaMontgomery CountyEastern Time

Population

38,546

Median household income

$93K

U.S. $81K

Median home value

$475K

U.S. $333K

Median rent

$1,887/mo

U.S. $1,413

Median age

36.8

U.S. 38.9

Land area

5.6 sq mi

6,842 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 20877

20877 is an urban zip code in Gaithersburg, Maryland (Montgomery County), covering 5.6 sq mi of land. About 38,546 people live here, or 6,842 per square mile. The median resident is 36.8 years old, compared with 38.9 nationally.

The median household earns $92,800 a year, close to the national median of $80,734. 12% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $474,800, or 5.1 years of median household income (U.S.: 4.1 years), which makes homes about as affordable as the national average for local earners. 43% of occupied homes are lived in by their owners, and renters pay a median of $1,887 a month.

33% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 30.7 minutes each way, and 17% of workers work from home. The most common jobs among working residents are in construction and repair; cleaning and personal care; and food service. 56% of households speak a language other than English at home, most often Spanish.

How 20877 compares

Sorted from highest to lowest national percentile

Foreign-born residents48.2%
98th
U.S. 14.1% · MD 16.6%3rd of 446 in MD
Uninsured rate22%
96th
WeaknessU.S. 8.4% · MD 6.3%9th of 444 in MD
Diversity index68.7
91st
U.S. 61.4 · MD 67.739th of 446 in MD
Population density6,842/sq mi
87th
U.S. 95/sq mi · MD 639/sq mi31st of 446 in MD
Tech workers5.3%
81st
U.S. 3.8% · MD 6.4%201st of 444 in MD
Median gross rent$1,887
79th
U.S. $1,413 · MD $1,70598th of 338 in MD
Rent-burdened renters58.5%
79th
U.S. 51.1% · MD 51.5%110th of 404 in MD
Average commute30.7 min
77th
U.S. 26.4 min · MD 31.1 min229th of 421 in MD
Residents under 1825%
74th
U.S. 22% · MD 22.2%94th of 446 in MD
Median home value$474,800
72nd
U.S. $332,700 · MD $419,900150th of 421 in MD
Unemployment rate6.2%
71st
U.S. 5.2% · MD 4.9%104th of 444 in MD
Work from home17.3%
70th
U.S. 15.1% · MD 19.3%204th of 444 in MD
Broadband access94.2%
68th
U.S. 91% · MD 92.4%196th of 441 in MD
Government workers16.3%
68th
U.S. 14.5% · MD 22.5%341st of 444 in MD
Population38,546
65th
U.S. 334,922,499 · MD 6,206,01150th of 446 in MD
Median household income$92,800
65th
U.S. $80,734 · MD $103,678245th of 414 in MD
Poverty rate12%
56th
U.S. 12.5% · MD 9.4%108th of 441 in MD
Self-employed workers9.8%
56th
U.S. 10% · MD 8.7%178th of 444 in MD
Bachelor's degree or higher33.4%
53rd
U.S. 35.7% · MD 43.4%256th of 445 in MD
Per capita income$38,973
47th
U.S. $44,673 · MD $52,979338th of 446 in MD
Income inequality (Gini)0.430
45th
U.S. 0.483 · MD 0.456136th of 438 in MD
Housing vacancy5.7%
41st
U.S. 10.1% · MD 7.7%209th of 441 in MD
Residents 65 and older14.7%
36th
U.S. 17.2% · MD 16.7%324th of 446 in MD
Median age36.8
33rd
U.S. 38.9 · MD 39.4357th of 446 in MD
Median earnings per worker$42,757
32nd
U.S. $49,666 · MD $61,200382nd of 443 in MD
Homeownership rate43.1%
11th
WeaknessU.S. 65.2% · MD 67.6%412th of 441 in MD
Veterans2.6%
11th
U.S. 6.2% · MD 6.8%410th of 446 in MD
Healthcare workers5.3%
5th
U.S. 9.7% · MD 9%345th of 444 in MD

Measure	20877	Montgomery	MD	U.S.	National percentile	Rank in MD
Foreign-born residents	48.2%	33.6%	16.6%	14.1%	98th	3rd of 446
Uninsured rateWeakness	22%	7%	6.3%	8.4%	96th	9th of 444
Diversity index	68.7	74.1	67.7	61.4	91st	39th of 446
Population density	6,842/sq mi	2,162/sq mi	639/sq mi	95/sq mi	87th	31st of 446
Tech workers	5.3%	8.2%	6.4%	3.8%	81st	201st of 444
Median gross rent	$1,887	$2,068	$1,705	$1,413	79th	98th of 338
Rent-burdened renters	58.5%	51.6%	51.5%	51.1%	79th	110th of 404
Average commute	30.7 min	31.9 min	31.1 min	26.4 min	77th	229th of 421
Residents under 18	25%	22.8%	22.2%	22%	74th	94th of 446
Median home value	$474,800	$640,300	$419,900	$332,700	72nd	150th of 421
Unemployment rate	6.2%	4.9%	4.9%	5.2%	71st	104th of 444
Work from home	17.3%	28.3%	19.3%	15.1%	70th	204th of 444
Broadband access	94.2%	95.7%	92.4%	91%	68th	196th of 441
Government workers	16.3%	21.5%	22.5%	14.5%	68th	341st of 444
Population	38,546	1,065,949	6,206,011	334,922,499	65th	50th of 446
Median household income	$92,800	$132,450	$103,678	$80,734	65th	245th of 414
Poverty rate	12%	7.5%	9.4%	12.5%	56th	108th of 441
Self-employed workers	9.8%	11%	8.7%	10%	56th	178th of 444
Bachelor's degree or higher	33.4%	60.6%	43.4%	35.7%	53rd	256th of 445
Per capita income	$38,973	$67,571	$52,979	$44,673	47th	338th of 446
Income inequality (Gini)	0.430	0.469	0.456	0.483	45th	136th of 438
Housing vacancy	5.7%	4.3%	7.7%	10.1%	41st	209th of 441
Residents 65 and older	14.7%	17%	16.7%	17.2%	36th	324th of 446
Median age	36.8	40.2	39.4	38.9	33rd	357th of 446
Median earnings per worker	$42,757	$71,294	$61,200	$49,666	32nd	382nd of 443
Homeownership rateWeakness	43.1%	65.3%	67.6%	65.2%	11th	412th of 441
Veterans	2.6%	4.2%	6.8%	6.2%	11th	410th of 446
Healthcare workers	5.3%	8.3%	9%	9.7%	5th	345th of 444

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

17%

5–17

18–24

13%

25–34

16%

35–44

12%

45–54

10%

55–64

65–74

75+

Median age

36.8

Under 18

25%

65 and over

14.7%

Race and ethnicity

White19%
Black15%
Hispanic48%
Asian13%
Native American0.0%
Pacific Islander0.4%
Other0.3%
Multiracial3%

Diversity index

68.7

U.S. 61.4

Foreign-born

48.2%

U.S. 14.1%

Born in state

28%

Language spoken at home (households)

English only

44%

Spanish

31%

Other Indo-European

11%

Asian / Pacific

10%

Other

Households

Households: 12,519
Average household size: 3.1
Family households: 66.9%
Married couples: 46.4%
Living alone: 27%
Veterans (of adults): 2.6%
Male / female: 50% / 50%

Income and poverty

Household income distribution

<$25k

13%

$25–50k

15%

$50–75k

15%

$75–100k

$100–150k

20%

$150–200k

13%

$200k+

15%

Median household income

20877

$92,800

Montgomery Co.

$132,450

Maryland

$103,678

United States

$80,734

Per capita income

$38,973

U.S. $44,673

Poverty rate

12%

U.S. 12.5%

Households earning $150K+

27.8%

U.S. 23%

Income inequality (Gini)

0.430

U.S. 0.483

Housing

Median home value

20877

$474,800

Montgomery Co.

$640,300

Maryland

$419,900

United States

$332,700

Median gross rent

20877

$1,887

Montgomery Co.

$2,068

Maryland

$1,705

United States

$1,413

Types of housing

Single-family

46%

2–4 units

5–19 units

26%

20+ units

24%

Mobile home

Boat, RV, van

Housing units: 13,272
Owner-occupied: 43.1%
Vacant: 5.7%
Median year built: 1984
Median rooms: 5
Renters paying 30%+ of income: 58.5%
Renters paying 50%+ of income: 29.2%
Home value to income: 5.1× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

52%

Carpooled

17%

Transit

10%

Walked

Bicycle

0.2%

Worked from home

17%

Other

Commute time (one way)

<10 min

10–19

29%

20–29

18%

30–44

23%

45–59

11%

60+

15%

Average commute

30.7 min

U.S. 26.4 min

Unemployment

6.2%

U.S. 5.2%

In labor force

70.4%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Construction and repair

13%

Cleaning and personal care

11%

Food service

Sales

Transportation and moving

Management

Office and admin

Education

Business and finance

Computer and math

Healthcare

Production

Engineering and science

Arts, media and sports

Legal and social services

Police and fire

0.9%

Farming, fishing and forestry

0.4%

Industries

Construction

13%

Health care and social assistance

10%

Restaurants and hotels

10%

Professional and technical services

Admin, support and management

Retail

Public administration

Education

Other services

Transportation, warehousing and utilities

Manufacturing

Finance, insurance and real estate

Wholesale

Information

Arts and recreation

0.8%

Agriculture and mining

0.2%

Median earnings per worker

$42,757

U.S. $49,666

Self-employed

9.8%

U.S. 10%

Government workers

16.3%

U.S. 14.5%

Nonprofit workers

8.7%

U.S. 8.8%

Median earnings by type of work

Type of work	20877	U.S.
Management, business, science and arts	$80,112	$74,888
Service	$27,503	$26,804
Sales and office	$36,613	$40,476
Construction and maintenance	$45,942	$49,199
Production and transportation	$37,193	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

26%

High school

21%

Some college

15%

Associate's

Bachelor's

19%

Graduate

14%

High school graduate or higher: 74.4%
Bachelor's degree or higher: 33.4%
Graduate or professional degree: 14.4%
Households with broadband: 94.2%
Cable, fiber or DSL: 83.6%
No internet access: 3.1%
Without health insurance: 22%
Limited-English households: 19.6%

Geography

City (USPS): Gaithersburg
State: Maryland
County: Montgomery County
Center point: 39.1406° N, 77.1921° W
Land area: 5.6 sq mi
Water area: under 0.1 sq mi
Time zone: Eastern Time (UTC-5, UTC-4 in summer)
Zip type: Residential delivery area

Cities and towns within this zip

Gaithersburg67% of zip
Redland (unincorporated)13% of zip
Flower Hill (unincorporated)4% of zip
Montgomery Village (unincorporated)1% of zip

Census places overlapping the zip's area. Mail may use a different city name than the municipality.

Zip codes near 20877

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
20813	Bethesda, MD · PO box	0.9 mi	—	—	—
20827	Bethesda, MD · PO box	0.9 mi	—	—	—
20848	Rockville, MD · PO box	0.9 mi	—	—	—
20859	Potomac, MD · PO box	0.9 mi	—	—	—
20875	Germantown, MD · PO box	0.9 mi	—	—	—
20880	Washington Grove, MD	0.9 mi	577	$134,583	$612,700
20884	Gaithersburg, MD · PO box	0.9 mi	—	—	—
20897	Suburb Maryland Fac, MD · PO box	0.9 mi	—	—	—
20898	Gaithersburg, MD · PO box	0.9 mi	—	—	—
20899	Gaithersburg, MD	1.3 mi	57	$24,417	—
20879	Gaithersburg, MD	2.4 mi	25,264	$112,104	$468,100
20855	Derwood, MD	3.2 mi	17,279	$149,110	$640,300

Zip codes like 20877 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 20877

What city is zip code 20877?

20877 is assigned to Gaithersburg, Maryland. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 20877 in?

20877 is in Montgomery County, Maryland.

What is the population of 20877?

About 38,546 people live in 20877, according to the Census Bureau's American Community Survey.

What time zone is 20877 in?

20877 is in Eastern Time.

What is the median household income in 20877?

The median household income in 20877 is $92,800.

What zip codes are near 20877?

The closest zip codes to 20877 are 20813, 20827, 20848, 20859, 20875.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 20877, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.