20871

Zip code 20871: Clarksburg, Maryland

Q: What city is zip code 20871?

20871 is assigned to Clarksburg, Maryland. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 20871 in?

20871 is mostly in Montgomery County, but it extends into 1 other county.

Q: What is the population of 20871?

About 30,182 people live in 20871, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 20871?

The median household income in 20871 is $177,523.

Q: What zip codes are near 20871?

The closest zip codes to 20871 are 20876, 20872, 20838, 21754, 20841.

Residential delivery areaMontgomery CountyEastern Time

Population

30,182

Median household income

$178K

U.S. $81K

Median home value

$669K

U.S. $333K

Median rent

$2,560/mo

U.S. $1,413

Median age

37.7

U.S. 38.9

Land area

23 sq mi

1,319 people/sq mi

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

About 20871

20871 is a suburban zip code in Clarksburg, Maryland (Montgomery County), covering 23 sq mi of land. About 30,182 people live here, or 1,319 per square mile. The median resident is 37.7 years old, compared with 38.9 nationally.

The median household earns $177,523 a year, about 2.2× the national median of $80,734. 3.8% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $668,800, or 3.8 years of median household income (U.S.: 4.1 years), which makes homes about as affordable as the national average for local earners. 91% of occupied homes are lived in by their owners, and renters pay a median of $2,560 a month.

68% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 34.8 minutes each way, and 29% of workers work from home. The most common jobs among working residents are in computer and math (tech); management; and business and finance. 58% of households speak a language other than English at home, most often an Asian or Pacific Island language.

How 20871 compares

Sorted from highest to lowest national percentile

Tech workers16.4%
99th
U.S. 3.8% · MD 6.4%11th of 444 in MD
Median household income$177,523
98th
StrengthU.S. $80,734 · MD $103,67840th of 414 in MD
Diversity index73.6
98th
U.S. 61.4 · MD 67.710th of 446 in MD
Median gross rent$2,560
96th
U.S. $1,413 · MD $1,70522nd of 338 in MD
Homeownership rate90.6%
96th
StrengthU.S. 65.2% · MD 67.6%109th of 441 in MD
Median earnings per worker$87,912
95th
StrengthU.S. $49,666 · MD $61,20058th of 443 in MD
Bachelor's degree or higher68.1%
94th
StrengthU.S. 35.7% · MD 43.4%38th of 445 in MD
Foreign-born residents39.1%
94th
U.S. 14.1% · MD 16.6%11th of 446 in MD
Residents under 1829.3%
94th
U.S. 22% · MD 22.2%26th of 446 in MD
Work from home29.1%
93rd
U.S. 15.1% · MD 19.3%49th of 444 in MD
Average commute34.8 min
91st
WeaknessU.S. 26.4 min · MD 31.1 min127th of 421 in MD
Government workers22.1%
90th
U.S. 14.5% · MD 22.5%197th of 444 in MD
Broadband access96.5%
89th
StrengthU.S. 91% · MD 92.4%116th of 441 in MD
Median home value$668,800
86th
U.S. $332,700 · MD $419,90047th of 421 in MD
Per capita income$59,923
85th
StrengthU.S. $44,673 · MD $52,979143rd of 446 in MD
Rent-burdened renters55.7%
69th
U.S. 51.1% · MD 51.5%131st of 404 in MD
Healthcare workers10.4%
64th
U.S. 9.7% · MD 9%128th of 444 in MD
Population30,182
50th
U.S. 334,922,499 · MD 6,206,01183rd of 446 in MD
Self-employed workers9.3%
50th
U.S. 10% · MD 8.7%208th of 444 in MD
Population density1,319/sq mi
49th
U.S. 95/sq mi · MD 639/sq mi147th of 446 in MD
Median age37.7
40th
U.S. 38.9 · MD 39.4334th of 446 in MD
Unemployment rate4.3%
39th
U.S. 5.2% · MD 4.9%193rd of 444 in MD
Veterans4.7%
35th
U.S. 6.2% · MD 6.8%339th of 446 in MD
Uninsured rate3.4%
16th
StrengthU.S. 8.4% · MD 6.3%241st of 444 in MD
Poverty rate3.8%
5th
StrengthU.S. 12.5% · MD 9.4%324th of 441 in MD
Residents 65 and older9%
5th
U.S. 17.2% · MD 16.7%414th of 446 in MD
Housing vacancy0.6%
1st
U.S. 10.1% · MD 7.7%394th of 441 in MD
Income inequality (Gini)0.327
1st
StrengthU.S. 0.483 · MD 0.456387th of 438 in MD

Measure	20871	Montgomery	MD	U.S.	National percentile	Rank in MD
Tech workers	16.4%	8.2%	6.4%	3.8%	99th	11th of 444
Median household incomeStrength	$177,523	$132,450	$103,678	$80,734	98th	40th of 414
Diversity index	73.6	74.1	67.7	61.4	98th	10th of 446
Median gross rent	$2,560	$2,068	$1,705	$1,413	96th	22nd of 338
Homeownership rateStrength	90.6%	65.3%	67.6%	65.2%	96th	109th of 441
Median earnings per workerStrength	$87,912	$71,294	$61,200	$49,666	95th	58th of 443
Bachelor's degree or higherStrength	68.1%	60.6%	43.4%	35.7%	94th	38th of 445
Foreign-born residents	39.1%	33.6%	16.6%	14.1%	94th	11th of 446
Residents under 18	29.3%	22.8%	22.2%	22%	94th	26th of 446
Work from home	29.1%	28.3%	19.3%	15.1%	93rd	49th of 444
Average commuteWeakness	34.8 min	31.9 min	31.1 min	26.4 min	91st	127th of 421
Government workers	22.1%	21.5%	22.5%	14.5%	90th	197th of 444
Broadband accessStrength	96.5%	95.7%	92.4%	91%	89th	116th of 441
Median home value	$668,800	$640,300	$419,900	$332,700	86th	47th of 421
Per capita incomeStrength	$59,923	$67,571	$52,979	$44,673	85th	143rd of 446
Rent-burdened renters	55.7%	51.6%	51.5%	51.1%	69th	131st of 404
Healthcare workers	10.4%	8.3%	9%	9.7%	64th	128th of 444
Population	30,182	1,065,949	6,206,011	334,922,499	50th	83rd of 446
Self-employed workers	9.3%	11%	8.7%	10%	50th	208th of 444
Population density	1,319/sq mi	2,162/sq mi	639/sq mi	95/sq mi	49th	147th of 446
Median age	37.7	40.2	39.4	38.9	40th	334th of 446
Unemployment rate	4.3%	4.9%	4.9%	5.2%	39th	193rd of 444
Veterans	4.7%	4.2%	6.8%	6.2%	35th	339th of 446
Uninsured rateStrength	3.4%	7%	6.3%	8.4%	16th	241st of 444
Poverty rateStrength	3.8%	7.5%	9.4%	12.5%	5th	324th of 441
Residents 65 and older	9%	17%	16.7%	17.2%	5th	414th of 446
Housing vacancy	0.6%	4.3%	7.7%	10.1%	1st	394th of 441
Income inequality (Gini)Strength	0.327	0.469	0.456	0.483	1st	387th of 438

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

21%

5–17

18–24

10%

25–34

18%

35–44

17%

45–54

11%

55–64

65–74

75+

Median age

37.7

Under 18

29.3%

65 and over

Race and ethnicity

White26%
Black13%
Hispanic16%
Asian39%
Native American0.2%
Pacific Islander0.0%
Other0.7%
Multiracial5%

Diversity index

73.6

U.S. 61.4

Foreign-born

39.1%

U.S. 14.1%

Born in state

34.1%

Language spoken at home (households)

English only

42%

Spanish

11%

Other Indo-European

16%

Asian / Pacific

25%

Other

Households

Households: 9,347
Average household size: 3.2
Family households: 85.3%
Married couples: 68.6%
Living alone: 11.4%
Veterans (of adults): 4.7%
Male / female: 49% / 51%

Income and poverty

Household income distribution

<$25k

$25–50k

$50–75k

$75–100k

11%

$100–150k

14%

$150–200k

17%

$200k+

43%

Median household income

20871

$177,523

Montgomery Co.

$132,450

Maryland

$103,678

United States

$80,734

Per capita income

$59,923

U.S. $44,673

Poverty rate

3.8%

U.S. 12.5%

Households earning $150K+

60%

U.S. 23%

Income inequality (Gini)

0.327

U.S. 0.483

Housing

Median home value

20871

$668,800

Montgomery Co.

$640,300

Maryland

$419,900

United States

$332,700

Median gross rent

20871

$2,560

Montgomery Co.

$2,068

Maryland

$1,705

United States

$1,413

Types of housing

Single-family

90%

2–4 units

5–19 units

20+ units

Mobile home

Boat, RV, van

Housing units: 9,405
Owner-occupied: 90.6%
Vacant: 0.6%
Median year built: 2010
Median rooms: 7.1
Renters paying 30%+ of income: 55.7%
Renters paying 50%+ of income: 34.9%
Home value to income: 3.8× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

61%

Carpooled

Transit

Walked

0.8%

Bicycle

Worked from home

29%

Other

Commute time (one way)

<10 min

10–19

14%

20–29

20%

30–44

32%

45–59

13%

60+

16%

Average commute

34.8 min

U.S. 26.4 min

Unemployment

4.3%

U.S. 5.2%

In labor force

73.3%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Computer and math

16%

Management

13%

Business and finance

12%

Office and admin

11%

Healthcare

10%

Engineering and science

Sales

Education

Construction and repair

Cleaning and personal care

Legal and social services

Production

Transportation and moving

Arts, media and sports

Food service

Police and fire

Farming, fishing and forestry

0.0%

Industries

Professional and technical services

22%

Health care and social assistance

15%

Public administration

12%

Education

Finance, insurance and real estate

Retail

Manufacturing

Construction

Other services

Transportation, warehousing and utilities

Restaurants and hotels

Information

Admin, support and management

Wholesale

0.6%

Arts and recreation

0.4%

Agriculture and mining

0.2%

Median earnings per worker

$87,912

U.S. $49,666

Self-employed

9.3%

U.S. 10%

Government workers

22.1%

U.S. 14.5%

Nonprofit workers

8.2%

U.S. 8.8%

Median earnings by type of work

Type of work	20871	U.S.
Management, business, science and arts	$117,603	$74,888
Service	$33,750	$26,804
Sales and office	$43,011	$40,476
Construction and maintenance	$44,004	$49,199
Production and transportation	$60,396	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

11%

Some college

Associate's

Bachelor's

35%

Graduate

33%

High school graduate or higher: 95.1%
Bachelor's degree or higher: 68.1%
Graduate or professional degree: 32.7%
Households with broadband: 96.5%
Cable, fiber or DSL: 91.1%
No internet access: 1.7%
Without health insurance: 3.4%
Limited-English households: 4.4%

Geography

City (USPS): Clarksburg
State: Maryland
County: Montgomery County
Center point: 39.2589° N, 77.2818° W
Land area: 23 sq mi
Water area: under 0.1 sq mi
Time zone: Eastern Time (UTC-5, UTC-4 in summer)
Zip type: Residential delivery area

20871 spans 2 counties

Montgomery County94% of land
Frederick County6% of land

Cities and towns within this zip

Clarksburg (unincorporated)26% of zip
Green Valley (unincorporated)6% of zip
Ten Mile Creek (unincorporated)3% of zip

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

Zip codes near 20871

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
20876	Germantown, MD	4.4 mi	26,406	$119,731	$487,300
20872	Damascus, MD	4.9 mi	13,983	$141,050	$504,300
20838	Barnesville, MD	5.3 mi	306	$250,000+	$775,700
21754	Ijamsville, MD	5.4 mi	8,156	$182,188	$647,300
20841	Boyds, MD	5.7 mi	9,969	$184,688	$782,500
20886	Montgomery Village, MD	6.4 mi	34,718	$98,542	$386,500
21770	Monrovia, MD	6.5 mi	8,751	$183,571	$632,500
20885	Gaithersburg, MD · PO box	6.5 mi	—	—	—
20882	Gaithersburg, MD	6.7 mi	13,751	$184,136	$737,400
20842	Dickerson, MD	8.2 mi	2,369	$204,013	$745,800
21704	Frederick, MD	8.3 mi	20,006	$161,063	$612,000
21710	Adamstown, MD	8.7 mi	4,661	$163,864	$591,100

Zip codes like 20871 elsewhere

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

Questions about 20871

What city is zip code 20871?

20871 is assigned to Clarksburg, Maryland. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 20871 in?

20871 is mostly in Montgomery County, but it extends into 1 other county.

What is the population of 20871?

About 30,182 people live in 20871, according to the Census Bureau's American Community Survey.

What time zone is 20871 in?

20871 is in Eastern Time.

What is the median household income in 20871?

The median household income in 20871 is $177,523.

What zip codes are near 20871?

The closest zip codes to 20871 are 20876, 20872, 20838, 21754, 20841.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 20871, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.