21781 ZIP Code — Saint James, MD

Washington County, Maryland

ZIP code 21781 is located in Saint James, Maryland, within Washington County. It covers approximately 0.24 square miles and serves a population of 41 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 301/240.

population

0.24

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

21781 ZIP code map

Cities in ZIP code 21781

Below are the cities the US Postal Service accepts for ZIP code 21781. Using any city not on this list may result in mail delivery delays.

City	Status
Saint James	Acceptable

Demographics updated 06/2026

Population
Total population	41
Population density	171 / sq mi
State FIPS	24
County FIPS	043

Geography
Land area	0.24 sq mi
Water area	0.00 sq mi
Latitude	39.5674
Longitude	-77.7474
Timezone	Eastern (ET)
Area code	301/240

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	0.0%	40.3%	28.2%
$50k – $100k	100.0%	30.7%	28.2%
$100k – $200k	0.0%	23.5%	30.1%
Over $200k	0.0%	5.6%	13.4%

Demographics & statistics

Population

171

People per sq mi

18.4

Median age

Median household income

$3,210

Per capita income

Median home value

Median monthly rent

0.0%

Home ownership

100.0%

Poverty rate

68.8%

Unemployment

Housing units

0.0%

Bachelor's or higher

Age distribution

Male Female

15–19

20–24

35–44

← Male

Female →

Age summary

Group	Count	%
Under 18	17	41.5%
18 and over	24	58.5%
65 and over	0	0.0%
Median age	18.4 years

Race & ethnicity

White 68.3%

Asian 19.5%

Two or more races 7.3%

Black or African American 4.9%

Group	Count	%
White	28	68.3%
Asian	8	19.5%
Two or more races	3	7.3%
Black or African American	2	4.9%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	0.0%	40.3%	28.2%
$50k – $100k	100.0%	30.7%	28.2%
$100k – $200k	0.0%	23.5%	30.1%
Over $200k	0.0%	5.6%	13.4%

Housing

Home values

Housing overview

Metric	Value
Median home value	$0
Median rent / month	$0
Owner occupied	0.0%
Renter occupied	0.0%
Vacant	0.0%
Single-family detached	0.0%
Large apartment buildings	0.0%
Mobile homes	0.0%
Median rooms	0.0
Avg household size (owned)	0.00

Year built

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

Bedrooms

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

Vehicles per household

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

Heating fuel

Fuel type	%

Households & families

Household type	Count	%
Married-couple family	0	0.0%
Cohabiting couple	0	0.0%
Male householder, no spouse	0	0.0%
Female householder, no spouse	0	0.0%
Households with children under 18	0	0.0%
Households with seniors (65+)	0	0.0%
Average household size	0.00

Marital status

Status	Male	Female
Never married	38.9%	100.0%
Married	0.0%	0.0%
Separated	61.1%	0.0%
Widowed	0.0%	0.0%
Divorced	0.0%	0.0%

Education

Less than 9th grade 0.0%

Some HS, no diploma 100.0%

HS graduate 0.0%

Some college, no degree 0.0%

Associate's degree 0.0%

Bachelor's degree 0.0%

Graduate / professional 0.0%

Metric	%
HS diploma or higher	0.0%
Bachelor's or higher	0.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	0	0.0%
High school	12	40.0%
College / grad school	18	60.0%

Employment

Industry of employment

Education & healthcare 100.0%

Occupation

Category	%
Management, business & arts	0.0%
Service	0.0%
Sales & office	100.0%
Natural resources & construction	0.0%
Production & transportation	0.0%

Employment type

Type	%
Private sector	100.0%
Government	0.0%
Self-employed	0.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	40.0%
Carpool	0.0%
Public transit	0.0%
Walk	60.0%
Work from home	0.0%
Other means	0.0%
Avg commute (minutes)	0.0

Poverty

All people 100.0%

Under 18 years 0.0%

18 and over 100.0%

Married-couple families 0.0%

Female-led households 0.0%

Income support

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

Health indicators

Condition	%
Obesity	23.7%
High blood pressure	15.8%
High cholesterol	17.3%
Diabetes	3.4%
Heart disease	1.9%
Stroke	0.9%
Asthma	10.0%
Arthritis	9.8%
Kidney disease	1.1%
Pulmonary disease	2.6%
Cancer	2.3%

Behavior / access	%
Smoking	12.3%
Binge drinking	18.6%
No physical activity	18.6%
Less than 7 hrs sleep	31.2%
Depression	20.4%
Fair or poor health	6.5%
Poor mental health	16.6%
Poor physical health	4.8%
No health insurance	11.1%
Visited doctor (checkup)	71.3%
Visited dentist	68.2%
Cholesterol screening	81.2%
Teeth loss	10.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	0	0.0%

Disability	%
Any disability	26.8%
Under 18	0.0%
18–64 years	45.8%
65 and over	0.0%

Health insurance coverage

Type	%
Private insurance	68.3%
Public insurance	31.7%
No insurance	0.0%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	41	100.0%
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)	37	90.2%
Born in same state	37	90.2%
Born in different state	29	70.7%
Foreign born	0	0.0%
Naturalized citizen	4	9.8%
Not a US citizen	2	50.0%

Ancestry

Ancestry	Count	%
Italian	13	31.7%

Technology access

Metric	% of households
Computer access	0.0%
Internet access	0.0%

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

Frequently asked questions about ZIP code 21781

What city is ZIP code 21781 in?

ZIP code 21781 is primarily assigned to Saint James, Maryland.

What county is ZIP code 21781 in?

ZIP code 21781 falls within Washington County, Maryland.

What is the poverty rate in ZIP code 21781?

100% of residents in ZIP code 21781 live below the poverty line, above the national average.

Is ZIP code 21781 family-oriented?

42% of residents in ZIP code 21781 are under 18, reflecting a younger, family-oriented community.

What is the population of ZIP code 21781?

ZIP code 21781 has an estimated population of 41 residents, with a density of 171 people per square mile.

What timezone is ZIP code 21781 in?

ZIP code 21781 observes the EST timezone.