21864 ZIP Code — Stockton, MD

Worcester County, Maryland

ZIP code 21864 is located in Stockton, Maryland, within Worcester County. It covers approximately 22.71 square miles and serves a population of 778 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 410/443/667.

About ZIP code 21864

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $208,900. Owner-occupancy is high at 95%, well above the national average.

Median household income is $95,313. SNAP benefit usage at 21% of households reflects economic stress in the area. 42% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 22 minutes is near the national average.

College attainment at 10% is below the national average, consistent with a trades and production-oriented local economy.

Notable community characteristics include a notable veteran presence at 17% of civilians, above the national average of 7%.

Overall, ZIP code 21864 reflects a community defined by a trades-oriented workforce, a strong veteran community, high homeownership, a significant Social Security-dependent population, and elevated reliance on food assistance.

778

population

22.71

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

21864 ZIP code map

Cities in ZIP code 21864

Below are the cities the US Postal Service accepts for ZIP code 21864. Using any city not on this list may result in mail delivery delays.

City	Status
Stockton	Acceptable

Demographics updated 05/2026

Population
Total population	778
Population density	34 / sq mi
State FIPS	24
County FIPS	047

Geography
Land area	22.71 sq mi
Water area	2.61 sq mi
Latitude	38.0457
Longitude	-75.4080
Timezone	Eastern (ET)
Area code	410/443/667

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	48.8%	40.0%	28.2%
$50k – $100k	28.0%	31.3%	28.2%
$100k – $200k	23.2%	21.0%	30.1%
Over $200k	0.0%	7.8%	13.4%

Demographics & statistics

778

Population

People per sq mi

41.8

Median age

$95,313

Median household income

$36,010

Per capita income

$208,900

Median home value

Median monthly rent

95.2%

Home ownership

1.4%

Poverty rate

8.9%

Unemployment

318

Housing units

9.7%

Bachelor's or higher

Age distribution

Male Female

5–9

10–14

15–19

118

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	286	36.8%
18 and over	492	63.2%
65 and over	138	17.7%
Median age	41.8 years

Race & ethnicity

White 79.9%

Black or African American 16.5%

Two or more races 3.6%

Group	Count	%
White	622	79.9%
Black or African American	128	16.5%
Two or more races	28	3.6%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	48.8%	40.0%	28.2%
$50k – $100k	28.0%	31.3%	28.2%
$100k – $200k	23.2%	21.0%	30.1%
Over $200k	0.0%	7.8%	13.4%

$15k–$25k 9.6%

$25k–$35k 19.2%

$35k–$50k 3.7%

$50k–$75k 8.5%

$75k–$100k 12.9%

$100k–$150k 20.7%

$150k–$200k 19.2%

$200k+ 6.3%

Range	% of households
$15k–$25k	9.6%
$25k–$35k	19.2%
$35k–$50k	3.7%
$50k–$75k	8.5%
$75k–$100k	12.9%
$100k–$150k	20.7%
$150k–$200k	19.2%
$200k+	6.3%
Median income	$95,313

Housing

Home values

Under $50k 7.0%

$50k–$100k 8.9%

$100k–$150k 16.7%

$150k–$200k 13.6%

$200k–$300k 21.7%

$300k–$500k 32.2%

Housing overview

Metric	Value
Median home value	$208,900
Median rent / month	$0
Owner occupied	95.2%
Renter occupied	4.8%
Vacant	18.1%
Single-family detached	90.9%
Large apartment buildings	0.0%
Mobile homes	9.1%
Median rooms	6.4
Avg household size (owned)	2.91

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	37.5%
1990–1999	19.9%
1980–1989	0.0%
1970–1979	8.8%
1960–1969	3.6%
1950–1959	5.4%
1940–1949	0.0%
1939 or earlier	24.8%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.0%
2 bedrooms	5.1%
3 bedrooms	81.6%
4 bedrooms	13.3%
5+ bedrooms	0.0%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	25.5%
2 vehicles	34.3%
3 or more	40.2%

Heating fuel

Fuel type	%
Electricity	38.4%
Propane / LP gas	30.3%
Fuel oil	20.7%
Wood	10.7%

Households & families

Household type	Count	%
Married-couple family	142	52.4%
Cohabiting couple	18	6.6%
Male householder, no spouse	38	14.0%
Female householder, no spouse	73	26.9%
Households with children under 18	102	37.6%
Households with seniors (65+)	94	34.7%
Average household size	2.87

Marital status

Status	Male	Female
Never married	24.9%	40.6%
Married	50.2%	40.6%
Separated	0.0%	1.4%
Widowed	4.5%	5.3%
Divorced	20.4%	12.2%

Education

Less than 9th grade 3.7%

Some HS, no diploma 9.7%

HS graduate 42.7%

Some college, no degree 18.9%

Associate's degree 15.2%

Bachelor's degree 4.6%

Graduate / professional 5.1%

Metric	%
HS diploma or higher	86.6%
Bachelor's or higher	9.7%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	16	5.1%
Elementary school	86	27.5%
High school	198	63.3%
College / grad school	13	4.2%

Employment

Industry of employment

Education & healthcare 35.2%

Wholesale trade 16.7%

Professional & management 12.2%

Retail trade 8.4%

Transportation & utilities 7.7%

Arts, food & hospitality 4.9%

Construction 4.5%

Agriculture & mining 4.2%

Information 3.1%

Finance & real estate 3.1%

Occupation

Category	%
Management, business & arts	44.3%
Service	11.1%
Sales & office	23.3%
Natural resources & construction	8.7%
Production & transportation	12.5%

Employment type

Type	%
Private sector	83.3%
Government	9.1%
Self-employed	7.7%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	100.0%
Carpool	0.0%
Public transit	0.0%
Walk	0.0%
Work from home	0.0%
Other means	0.0%
Avg commute (minutes)	21.9

Poverty

All people 1.4%

Under 18 years 0.0%

18 and over 2.2%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	42.1%
Retirement income	37.6%
Supplemental Security	1.8%
Cash public assistance	0.0%
Food stamps / SNAP	21.0%

Health indicators

Condition	%
Obesity	35.6%
High blood pressure	41.5%
High cholesterol	37.6%
Diabetes	12.6%
Heart disease	7.0%
Stroke	3.7%
Asthma	10.1%
Arthritis	28.9%
Kidney disease	3.2%
Pulmonary disease	7.5%
Cancer	7.5%

Behavior / access	%
Smoking	18.5%
Binge drinking	14.3%
No physical activity	26.9%
Less than 7 hrs sleep	31.8%
Depression	19.9%
Fair or poor health	14.8%
Poor mental health	14.5%
Poor physical health	10.2%
No health insurance	11.1%
Visited doctor (checkup)	78.4%
Visited dentist	61.3%
Cholesterol screening	92.8%
Teeth loss	13.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	85	17.3%

Disability	%
Any disability	14.1%
Under 18	0.0%
18–64 years	15.5%
65 and over	39.9%

Health insurance coverage

Type	%
Private insurance	62.0%
Public insurance	50.8%
No insurance	0.0%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	778	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)	778	100.0%
Born in same state	778	100.0%
Born in different state	585	75.2%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Italian	147	18.9%
Arab	49	6.3%

Ancestry	Count	%
French	33	4.2%

Technology access

Metric	% of households
Computer access	34.8%
Internet access	86.7%

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

Frequently asked questions about ZIP code 21864

What city is ZIP code 21864 in?

ZIP code 21864 is primarily assigned to Stockton, Maryland.

What county is ZIP code 21864 in?

ZIP code 21864 falls within Worcester County, Maryland.

Is ZIP code 21864 family-oriented?

37% of residents in ZIP code 21864 are under 18, reflecting a younger, family-oriented community.

Is ZIP code 21864 mostly owner-occupied?

95% of occupied units in ZIP code 21864 are owner-occupied, well above the national average.

How educated is the population of ZIP code 21864?

10% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Does ZIP code 21864 have a large veteran population?

17% of civilians in ZIP code 21864 are veterans, above the national average of ~7%.

What timezone is ZIP code 21864 in?

ZIP code 21864 observes the EST timezone.