Dundalk ZIP Codes — Baltimore County, MD

There is one unique ZIP code in Dundalk, Maryland and it is 21222. Area code: 410/443.

ZIP codes

11.50

sq mi land

2.22

sq mi water

410/443

area code

Dundalk, MD ZIP code map

About Dundalk, MD

Dundalk, located in Maryland, is a vibrant community within Baltimore County. With its rich history and close-knit neighborhoods, Dundalk offers a unique blend of suburban and urban living. The city is characterized by its friendly atmosphere and diverse population, making it a wonderful place to call home.

Location & geography

Dundalk is situated approximately 10 miles east of downtown Baltimore, making it easily accessible for those who work or play in the city. It shares its borders with several neighboring cities, including Essex to the north, Rosedale to the northwest, and Sparrows Point to the south. The total area of Dundalk includes 11.50 square miles of land and 2.22 square miles of water, incorporating a mix of residential areas and waterways.

Community & economy

Dundalk is known for its strong sense of community and family-oriented environment. The local economy is diverse, with industries ranging from retail and service sectors to manufacturing and education. Daily life in Dundalk is enriched by community events, local parks, and recreational facilities that foster connection and engagement among residents.

Transportation

Dundalk is served by several major highways, including I-95 and I-695, providing convenient access to both Baltimore City and other regions of Maryland. Baltimore/Washington International Thurgood Marshall Airport is the nearest major airport, located approximately 15 miles west of Dundalk. Public transportation options are available, including local bus services that connect residents to surrounding areas.

History

Dundalk was founded in the early 1900s and developed rapidly due to its proximity to the waterfront and industry. The area became a hub for shipbuilding and manufacturing, contributing to its growth and economic significance. Notable events in Dundalk's history include its incorporation as a city in the late 20th century and ongoing developments in community infrastructure and housing.

Did you know?

One surprising fact about Dundalk is that it was originally designed as a company town for the Bethlehem Steel Corporation. This industrial heritage has left a lasting influence on the community's culture and economy.

ZIP codes for Dundalk, MD (1)

ZIP code	City	County	Map
21222	Dundalk	Baltimore	View map

Demographics & statistics

60,013

Population

36.5

Median age

$60,483

Median household income

$30,284

Per capita income

$186,100

Median home value

$1,321

Median monthly rent

62.4%

Home ownership

18.9%

Poverty rate

7.3%

Unemployment

15,626

Housing units

13.3%

Bachelor's or higher

Age distribution

Male Female

1,842

Under 5

1,998

2,065

5–9

2,240

2,318

10–14

2,514

1,751

15–19

1,900

1,645

20–24

1,784

4,314

25–34

4,679

4,031

35–44

4,372

3,012

45–54

3,267

1,476

55–59

1,600

2,005

60–64

2,175

2,746

65–74

2,978

1,206

75–84

1,307

378

85+

410

← Male

Female →

Age summary

Group	Count	%
Under 18	15,079	25.1%
18 and over	44,934	74.9%
65 and over	9,025	15.0%
Median age	36.5 years

Race & ethnicity

White 61.2%

Black or African American 16.9%

Hispanic or Latino 7.7%

Other race 5.8%

Two or more races 5.4%

Asian 2%

American Indian / Alaska Native 1%

Group	Count	%
White	39,820	61.2%
Black or African American	10,968	16.9%
Hispanic or Latino	5,006	7.7%
Other race	3,782	5.8%
Two or more races	3,480	5.4%
Asian	1,315	2%
American Indian / Alaska Native	648	1%

Household income

Under $10k 6.3%

$10k–$15k 4.6%

$15k–$25k 10.2%

$25k–$35k 8.1%

$35k–$50k 12.0%

$50k–$75k 19.7%

$75k–$100k 14.0%

$100k–$150k 14.9%

$150k–$200k 6.4%

$200k+ 3.7%

Range	% of households
Under $10k	6.3%
$10k–$15k	4.6%
$15k–$25k	10.2%
$25k–$35k	8.1%
$35k–$50k	12.0%
$50k–$75k	19.7%
$75k–$100k	14.0%
$100k–$150k	14.9%
$150k–$200k	6.4%
$200k+	3.7%
Median income	$60,483

Housing

Home values

Under $50k 4.4%

$50k–$100k 5.1%

$100k–$150k 19.6%

$150k–$200k 27.9%

$200k–$300k 31.1%

$300k–$500k 9.4%

$500k–$1M 1.5%

$1M+ 1.0%

Housing overview

Metric	Value
Median home value	$186,100
Median rent / month	$1,321
Owner occupied	62.4%
Renter occupied	37.6%
Vacant	6.9%
Single-family detached	36.6%
Large apartment buildings	3.5%
Mobile homes	1.6%
Median rooms	6.0
Avg household size (owned)	2.56

Year built

Era	%
2020 or later	0.1%
2010–2019	2.5%
2000–2009	2.2%
1990–1999	4.5%
1980–1989	3.8%
1970–1979	6.6%
1960–1969	11.4%
1950–1959	37.8%
1940–1949	20.8%
1939 or earlier	10.0%

Bedrooms

Size	% of units
No bedroom (studio)	0.6%
1 bedroom	9.8%
2 bedrooms	30.7%
3 bedrooms	45.0%
4 bedrooms	11.4%
5+ bedrooms	2.5%

Vehicles per household

Vehicles	% of households
No vehicle	14.5%
1 vehicle	38.2%
2 vehicles	33.2%
3 or more	14.1%

Heating fuel

Fuel type	%
Utility gas	69.3%
Electricity	22.2%
Propane / LP gas	1.6%
Fuel oil	5.3%
Wood	0.1%
No fuel used	0.9%

Households & families

Household type	Count	%
Married-couple family	7,815	34.9%
Cohabiting couple	2,751	12.3%
Male householder, no spouse	4,528	20.2%
Female householder, no spouse	7,300	32.6%
Households with children under 18	7,454	33.3%
Households with seniors (65+)	6,888	30.8%
Average household size	2.67

Marital status

Status	Male	Female
Never married	46.4%	37.4%
Married	38.4%	34.6%
Separated	1.9%	2.8%
Widowed	3.1%	12.2%
Divorced	10.2%	13.1%

Education

Less than 9th grade 4.6%

Some HS, no diploma 10.2%

HS graduate 42.0%

Some college, no degree 22.1%

Associate's degree 7.8%

Bachelor's degree 9.1%

Graduate / professional 4.2%

Metric	%
HS diploma or higher	85.2%
Bachelor's or higher	13.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	571	3.8%
Kindergarten	734	4.9%
Elementary school	7,250	48.6%
High school	3,436	23.0%
College / grad school	2,926	19.6%

Employment

Industry of employment

Education & healthcare 19.1%

Retail trade 14.5%

Transportation & utilities 11.9%

Construction 11.5%

Professional & management 9.0%

Arts, food & hospitality 8.7%

Manufacturing 7.5%

Other services 5.7%

Finance & real estate 5.1%

Public administration 4.0%

Wholesale trade 1.8%

Information 0.8%

Agriculture & mining 0.3%

Occupation

Category	%
Management, business & arts	27.0%
Service	17.7%
Sales & office	21.9%
Natural resources & construction	11.8%
Production & transportation	21.6%

Employment type

Type	%
Private sector	82.7%
Government	11.9%
Self-employed	5.1%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	77.2%
Carpool	9.3%
Public transit	4.6%
Walk	2.1%
Other means	1.8%
Avg commute (minutes)	26.9

Poverty

All people 18.9%

Under 18 years 28.6%

18 and over 15.7%

Married-couple families 8.8%

Female-led households 34.1%

Income support

Source	% of households
Social Security	33.8%
Retirement income	25.1%
Supplemental Security	7.9%
Cash public assistance	4.4%
Food stamps / SNAP	22.8%

Health indicators

Condition	%
High blood pressure	36.1%
High cholesterol	34.1%
Heart disease	6.9%
Stroke	3.5%
Asthma	10.7%
Arthritis	27.7%
Kidney disease	3.2%
Pulmonary disease	7.9%
Cancer	7.0%

Behavior / access	%
Binge drinking	15.5%
No physical activity	27.3%
Less than 7 hrs sleep	33.9%
Fair or poor health	16.7%
Poor mental health	16.8%
Poor physical health	10.7%
No health insurance	13.2%
Visited doctor (checkup)	75.4%
Visited dentist	57.8%
Cholesterol screening	90.2%
Teeth loss	15.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	2,941	6.5%

Disability	%
Any disability	14.9%
Under 18	7.3%
18–64 years	13.1%
65 and over	35.2%

Health insurance coverage

Type	%
Private insurance	53.2%
Public insurance	49.4%
Uninsured under 19	6.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	56,173	93.6%
Spanish	3,230	5.8%
Other Indo-European	2,442	4.3%
Asian & Pacific Islander	562	1.0%
Other languages	63	0.1%

Place of birth & citizenship

Origin	Count	%
Native born (US)	54,950	91.6%
Born in same state	53,176	88.6%
Born in different state	46,107	76.8%
Foreign born	1,774	3.0%
Naturalized citizen	5,063	8.4%
Not a US citizen	2,234	44.1%

Ancestry

Ancestry	Count	%
Italian	7,698	12.8%
French	3,466	5.8%
Arab	2,543	4.2%
English	458	0.8%
Irish	104	0.2%

Ancestry	Count	%
Norwegian	103	0.2%
Polish	74	0.1%
German	61	0.1%
Dutch	40	0.1%

Technology access

Metric	% of households
Computer access	37.3%
Internet access	90.8%

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

Frequently asked questions

What ZIP codes does Dundalk, MD have?

Dundalk, MD has one ZIP code: 21222. Each ZIP code serves a distinct delivery area within the city and surrounding region.