20839 ZIP Code — Beallsville, MD

Montgomery County, Maryland

ZIP code 20839 is located in Beallsville, Maryland, within Montgomery County. It covers approximately 3.05 square miles and serves a population of 161 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 240/301.

161

population

3.05

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

20839 ZIP code map

Cities in ZIP code 20839

Below are the cities the US Postal Service accepts for ZIP code 20839. Using any city not on this list may result in mail delivery delays.

City	Status
Beallsville	Preferred

Nearby ZIP codes

20842 Dickerson (1.2 mi) 20837 Poolesville (4.6 mi) 20838 Barnesville (5.1 mi) 20841 Boyds (5.6 mi) 20176 Leesburg (5.7 mi) 21790 Tuscarora (7.1 mi) 21710 Adamstown (7.7 mi) 20874 Germantown (7.7 mi) 21777 Point Of Rocks (9 mi) 20871 Clarksburg (9.2 mi) 20165 Sterling (9.5 mi) 20129 Paeonian Springs (9.8 mi)

Demographics updated 05/2026

Population
Total population	161
Population density	53 / sq mi
State FIPS	24
County FIPS	031

Geography
Land area	3.05 sq mi
Water area	0.01 sq mi
Latitude	39.1823
Longitude	-77.4203
Timezone	Eastern (ET)
Area code	240/301

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	0.0%	20.6%	28.2%
$50k – $100k	23.3%	24.2%	28.2%
$100k – $200k	50.0%	31.9%	30.1%
Over $200k	26.7%	23.3%	13.4%

Demographics & statistics

161

Population

People per sq mi

37.3

Median age

Median household income

$64,375

Per capita income

$937,500

Median home value

Median monthly rent

64.1%

Home ownership

0.0%

Poverty rate

0.0%

Unemployment

Housing units

65.4%

Bachelor's or higher

Age distribution

Male Female

Under 5

25–34

35–44

45–54

65–74

← Male

Female →

Age summary

Group	Count	%
Under 18	25	15.5%
18 and over	136	84.5%
65 and over	55	34.2%
Median age	37.3 years

Race & ethnicity

White 88.2%

Two or more races 11.8%

Group	Count	%
White	142	88.2%
Two or more races	19	11.8%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	0.0%	20.6%	28.2%
$50k – $100k	23.3%	24.2%	28.2%
$100k – $200k	50.0%	31.9%	30.1%
Over $200k	26.7%	23.3%	13.4%

$75k–$100k 53.8%

$100k–$150k 35.9%

$200k+ 10.3%

Range	% of households
$75k–$100k	53.8%
$100k–$150k	35.9%
$200k+	10.3%
Median income	$0

Housing

Home values

$500k–$1M 54.0%

$1M+ 46.0%

Housing overview

Metric	Value
Median home value	$937,500
Median rent / month	$0
Owner occupied	64.1%
Renter occupied	35.9%
Vacant	0.0%
Single-family detached	100.0%
Large apartment buildings	0.0%
Mobile homes	0.0%
Median rooms	10.0
Avg household size (owned)	2.12

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	0.0%
1990–1999	0.0%
1980–1989	29.5%
1970–1979	24.4%
1960–1969	35.9%
1950–1959	0.0%
1940–1949	0.0%
1939 or earlier	10.3%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.0%
2 bedrooms	0.0%
3 bedrooms	24.4%
4 bedrooms	75.6%
5+ bedrooms	0.0%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	35.9%
2 vehicles	24.4%
3 or more	39.7%

Heating fuel

Fuel type	%
Electricity	34.6%
Fuel oil	65.4%

Households & families

Household type	Count	%
Married-couple family	51	65.4%
Cohabiting couple	8	10.3%
Male householder, no spouse	0	0.0%
Female householder, no spouse	19	24.4%
Households with children under 18	23	29.5%
Households with seniors (65+)	28	35.9%
Average household size	2.06

Marital status

Status	Male	Female
Never married	15.0%	35.5%
Married	85.0%	64.5%
Separated	0.0%	0.0%
Widowed	0.0%	0.0%
Divorced	0.0%	0.0%

Education

Less than 9th grade 0.0%

Some HS, no diploma 0.0%

HS graduate 0.0%

Some college, no degree 34.6%

Associate's degree 0.0%

Bachelor's degree 28.7%

Graduate / professional 36.8%

Metric	%
HS diploma or higher	100.0%
Bachelor's or higher	65.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	0	0.0%
High school	0	0.0%
College / grad school	0	0.0%

Employment

Industry of employment

Education & healthcare 41.3%

Retail trade 25.7%

Professional & management 17.4%

Manufacturing 8.3%

Public administration 7.3%

Occupation

Category	%
Management, business & arts	49.5%
Service	0.0%
Sales & office	24.8%
Natural resources & construction	25.7%
Production & transportation	0.0%

Employment type

Type	%
Private sector	51.4%
Government	48.6%
Self-employed	0.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	58.7%
Carpool	0.0%
Public transit	0.0%
Walk	0.0%
Work from home	41.3%
Other means	0.0%
Avg commute (minutes)	0.0

Poverty

All people 0.0%

Under 18 years 0.0%

18 and over 0.0%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	35.9%
Retirement income	35.9%
Supplemental Security	0.0%
Cash public assistance	0.0%
Food stamps / SNAP	0.0%

Health indicators

Condition	%
Obesity	21.6%
High blood pressure	32.2%
High cholesterol	37.6%
Diabetes	8.7%
Heart disease	6.2%
Stroke	2.9%
Asthma	8.5%
Arthritis	23.6%
Kidney disease	2.8%
Pulmonary disease	5.2%
Cancer	8.3%

Behavior / access	%
Smoking	9.2%
Binge drinking	12.7%
No physical activity	15.5%
Less than 7 hrs sleep	28.1%
Depression	16.8%
Fair or poor health	9.3%
Poor mental health	11.1%
Poor physical health	7.0%
No health insurance	8.9%
Visited doctor (checkup)	75.1%
Visited dentist	73.3%
Cholesterol screening	94.9%
Teeth loss	6.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	0	0.0%

Disability	%
Any disability	16.8%
Under 18	0.0%
18–64 years	0.0%
65 and over	49.1%

Health insurance coverage

Type	%
Private insurance	100.0%
Public insurance	34.2%
No insurance	0.0%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	136	84.5%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	161	100.0%
Born in same state	161	100.0%
Born in different state	97	60.2%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Italian	45	28%
Polish	28	17.4%

Ancestry	Count	%
French	27	16.8%

Technology access

Metric	% of households
Computer access	48.4%
Internet access	100.0%

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

Frequently asked questions about ZIP code 20839

What city is ZIP code 20839 in?

ZIP code 20839 is primarily assigned to Beallsville, Maryland.

What county is ZIP code 20839 in?

ZIP code 20839 falls within Montgomery County, Maryland.

Does ZIP code 20839 have an older population?

34% of residents in ZIP code 20839 are 65 or older, above the national average of ~17%.

How educated is the population of ZIP code 20839?

65% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Does ZIP code 20839 have a large retiree population?

36% of households in ZIP code 20839 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 20839?

The median home value in ZIP code 20839 is $937,500.

What timezone is ZIP code 20839 in?

ZIP code 20839 observes the EST timezone.