Dickerson ZIP Codes — Montgomery County, MD

There is one unique ZIP code in Dickerson, Maryland and it is 20842. Area code: 240/301.

ZIP codes

55.65

sq mi land

2.43

sq mi water

240/301

area code

Dickerson, MD ZIP code map

About Dickerson, MD

Dickerson, MD, is a small rural community located in the picturesque Montgomery County of Maryland. Known for its serene landscape and tight-knit atmosphere, it provides residents and visitors with a quiet escape from the hustle and bustle of urban life. With its rich history and natural beauty, Dickerson offers a unique glimpse into Maryland's charming small-town lifestyle.

Location & geography

Situated approximately 12 miles northwest of Rockville, Dickerson is bordered by several towns, including Poolesville to the south and Barnesville to the southeast. The area covers a total of 55.65 square miles of land and includes 2.43 square miles of water, primarily consisting of rural and agricultural land. The terrain is marked by rolling hills and scenic views, making it a beautiful locale for outdoor activities.

Community & economy

The character of Dickerson is defined by its friendly residents and a strong sense of community spirit. While primarily a residential area, it also features agricultural industries that contribute to the local economy. Daily life in Dickerson typically revolves around local schools, community events, and enjoying the surrounding natural beauty.

Transportation

Transportation in Dickerson is facilitated by nearby highways including Maryland Route 28 and Maryland Route 109, which connect residents to surrounding areas. The nearest major airport is Washington Dulles International Airport, located approximately 30 miles away, providing convenient access for travelers. Local transit options may be limited, emphasizing a car-dependent lifestyle.

History

Dickerson was founded in the 19th century and developed around agriculture, particularly dairy farming, which played a significant role in the local economy. Over the years, it has maintained its rural charm while slowly incorporating modern amenities to meet the needs of its residents. The community reflects a rich history influenced by early settlers in the region.

Did you know?

One surprising fact about Dickerson is that it is home to the historic and scenic Seneca Creek State Park, a beloved destination for hiking and fishing. Additionally, the area is known for its picturesque farmlands and scenic views, which attract both residents and visitors alike.

ZIP codes for Dickerson, MD (1)

ZIP code	City	County	Map
20842	Dickerson	Montgomery	View map

Demographics & statistics

1,927

Population

47.3

Median age

$152,917

Median household income

$68,311

Per capita income

$670,500

Median home value

$1,603

Median monthly rent

78.2%

Home ownership

1.8%

Poverty rate

1.6%

Unemployment

573

Housing units

53.1%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

133

45–54

129

139

55–59

136

60–64

126

65–74

123

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	407	21.1%
18 and over	1,520	78.9%
65 and over	351	18.2%
Median age	47.3 years

Race & ethnicity

White 62.9%

Black or African American 12.6%

Hispanic or Latino 9.4%

Other race 6.4%

Two or more races 6.2%

Asian 2.1%

American Indian / Alaska Native 0.4%

Group	Count	%
White	1,338	62.9%
Black or African American	268	12.6%
Hispanic or Latino	199	9.4%
Other race	137	6.4%
Two or more races	131	6.2%
Asian	45	2.1%
American Indian / Alaska Native	8	0.4%

Household income

$10k–$15k 0.6%

$15k–$25k 1.1%

$25k–$35k 2.6%

$35k–$50k 0.6%

$50k–$75k 19.3%

$75k–$100k 9.6%

$100k–$150k 15.5%

$150k–$200k 14.9%

$200k+ 35.8%

Range	% of households
$10k–$15k	0.6%
$15k–$25k	1.1%
$25k–$35k	2.6%
$35k–$50k	0.6%
$50k–$75k	19.3%
$75k–$100k	9.6%
$100k–$150k	15.5%
$150k–$200k	14.9%
$200k+	35.8%
Median income	$152,917

Housing

Home values

Under $50k 2.1%

$50k–$100k 1.8%

$150k–$200k 1.4%

$200k–$300k 9.7%

$300k–$500k 20.4%

$500k–$1M 41.2%

$1M+ 23.3%

Housing overview

Metric	Value
Median home value	$670,500
Median rent / month	$1,603
Owner occupied	78.2%
Renter occupied	21.8%
Vacant	8.2%
Single-family detached	92.6%
Large apartment buildings	0.0%
Mobile homes	2.2%
Median rooms	7.7
Avg household size (owned)	2.93

Year built

Era	%
2020 or later	0.0%
2010–2019	9.9%
2000–2009	8.1%
1990–1999	9.4%
1980–1989	5.4%
1970–1979	13.0%
1960–1969	7.0%
1950–1959	12.4%
1940–1949	3.6%
1939 or earlier	31.1%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	5.6%
2 bedrooms	11.7%
3 bedrooms	41.1%
4 bedrooms	27.5%
5+ bedrooms	14.1%

Vehicles per household

Vehicles	% of households
No vehicle	3.8%
1 vehicle	13.1%
2 vehicles	32.1%
3 or more	51.0%

Heating fuel

Fuel type	%
Utility gas	7.2%
Electricity	34.7%
Propane / LP gas	7.5%
Fuel oil	45.8%
Wood	4.9%

Households & families

Household type	Count	%
Married-couple family	434	66.1%
Cohabiting couple	35	5.3%
Male householder, no spouse	69	10.5%
Female householder, no spouse	119	18.1%
Households with children under 18	203	30.9%
Households with seniors (65+)	258	39.3%
Average household size	2.93

Marital status

Status	Male	Female
Never married	26.9%	26.5%
Married	61.4%	63.1%
Separated	0.0%	0.0%
Widowed	1.6%	4.6%
Divorced	10.1%	5.8%

Education

Less than 9th grade 0.3%

Some HS, no diploma 4.1%

HS graduate 25.6%

Some college, no degree 12.9%

Associate's degree 4.1%

Bachelor's degree 23.5%

Graduate / professional 29.5%

Metric	%
HS diploma or higher	95.6%
Bachelor's or higher	53.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	12	2.8%
Kindergarten	13	3.1%
Elementary school	156	36.8%
High school	132	31.1%
College / grad school	111	26.2%

Employment

Industry of employment

Public administration 17.3%

Professional & management 16.7%

Education & healthcare 16.5%

Agriculture & mining 11.4%

Other services 8.1%

Construction 7.7%

Information 6.6%

Retail trade 5.7%

Manufacturing 4.2%

Finance & real estate 2.8%

Transportation & utilities 1.6%

Wholesale trade 0.8%

Arts, food & hospitality 0.6%

Occupation

Category	%
Management, business & arts	59.1%
Service	16.0%
Sales & office	11.4%
Natural resources & construction	8.8%
Production & transportation	4.8%

Employment type

Type	%
Private sector	55.1%
Government	25.9%
Self-employed	15.4%
Unpaid family workers	3.6%

Commute

Method	%
Drive alone	53.0%
Carpool	4.3%
Public transit	4.1%
Walk	6.5%
Other means	0.8%
Avg commute (minutes)	40.5

Poverty

All people 1.8%

Under 18 years 2.0%

18 and over 1.8%

Married-couple families 0.0%

Female-led households 11.9%

Income support

Source	% of households
Social Security	34.1%
Retirement income	30.4%
Supplemental Security	5.8%
Cash public assistance	4.9%
Food stamps / SNAP	8.8%

Health indicators

Condition	%
High blood pressure	31.9%
High cholesterol	38.3%
Heart disease	5.8%
Stroke	2.6%
Asthma	8.6%
Arthritis	23.2%
Kidney disease	2.7%
Pulmonary disease	5.2%
Cancer	7.6%

Behavior / access	%
Binge drinking	13.7%
No physical activity	15.9%
Less than 7 hrs sleep	28.3%
Fair or poor health	9.3%
Poor mental health	11.5%
Poor physical health	7.2%
No health insurance	8.2%
Visited doctor (checkup)	75.0%
Visited dentist	73.2%
Cholesterol screening	94.7%
Teeth loss	7.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	106	7.0%

Disability	%
Any disability	9.5%
Under 18	0.0%
18–64 years	7.0%
65 and over	28.8%

Health insurance coverage

Type	%
Private insurance	81.0%
Public insurance	31.6%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,820	94.4%
Spanish	103	5.7%
Other Indo-European	38	2.1%
Asian & Pacific Islander	53	2.9%
Other languages	4	0.2%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,672	86.8%
Born in same state	1,632	84.7%
Born in different state	890	46.2%
Foreign born	40	2.1%
Naturalized citizen	255	13.2%
Not a US citizen	152	59.6%

Ancestry

Ancestry	Count	%
Italian	290	15%
French	166	8.6%
Arab	109	5.7%

Ancestry	Count	%
Norwegian	5	0.3%
English	4	0.2%

Technology access

Metric	% of households
Computer access	34.1%
Internet access	96.0%

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

Frequently asked questions

What ZIP codes does Dickerson, MD have?

Dickerson, MD has one ZIP code: 20842. Each ZIP code serves a distinct delivery area within the city and surrounding region.