Linthicum Heights ZIP Codes — Anne Arundel County, MD

There is one unique ZIP code in Linthicum Heights, Maryland and it is 21090. Area code: 410/443.

ZIP codes

6.64

sq mi land

0.08

sq mi water

410/443

area code

Linthicum Heights, MD ZIP code map

About Linthicum Heights, MD

Linthicum Heights, located in Maryland, is a charming suburban area within Anne Arundel County. With its close proximity to Baltimore and Washington D.C., it serves as a convenient residential community for commuters. The city is characterized by its friendly atmosphere, making it an attractive place for families and individuals alike.

Location & geography

Linthicum Heights is situated just south of Baltimore, approximately four miles away, making it a convenient location for those working in the city. Nearby cities include Glen Burnie to the east, about 3 miles away, and Brooklyn Park to the north, roughly 2 miles distant. The city encompasses a total land area of 6.64 square miles, with a small water area of 0.08 square miles, featuring a mix of residential neighborhoods and park areas.

Community & economy

The community in Linthicum Heights is vibrant and diverse, with a mixture of families, young professionals, and retirees. Industries in the area primarily revolve around retail, hospitality, and service sectors, which contribute to the local economy. Daily life in Linthicum Heights often includes community gatherings, outdoor activities in local parks, and a strong sense of neighborly support.

Transportation

Linthicum Heights is conveniently accessible via major highways, including I-95 and I-495, facilitating travel to nearby cities and attractions. The nearest airport is Baltimore/Washington International Thurgood Marshall Airport, which is located just a few miles to the northeast. Public transit options are available, providing residents with alternative commuting solutions.

History

Founded in the early 20th century, Linthicum Heights developed as a suburb of Baltimore, capitalizing on its proximity to the city. Key industries have historically included light manufacturing and service-oriented businesses, which have supported local growth. Over the years, the area has preserved its suburban charm while becoming an appealing location for those seeking a balance of urban and rural lifestyles.

Did you know?

One surprising fact about Linthicum Heights is that it is home to several historic buildings and landmarks, showcasing the area's rich heritage. Additionally, the city's location provides residents with easy access to both the hustle and bustle of nearby Baltimore and the serene landscapes of Anne Arundel County's parks and recreational areas.

ZIP codes for Linthicum Heights, MD (1)

ZIP code	City	County	Map
21090	Linthicum Heights	Anne Arundel	View map

Demographics & statistics

10,346

Population

38.0

Median age

$118,048

Median household income

$50,282

Per capita income

$371,000

Median home value

$1,813

Median monthly rent

81.0%

Home ownership

4.4%

Poverty rate

2.4%

Unemployment

3,457

Housing units

41.0%

Bachelor's or higher

Age distribution

Male Female

347

Under 5

340

325

5–9

318

270

10–14

264

338

15–19

331

227

20–24

222

884

25–34

865

683

35–44

667

651

45–54

636

286

55–59

279

363

60–64

355

505

65–74

494

193

75–84

189

159

85+

155

← Male

Female →

Age summary

Group	Count	%
Under 18	2,401	23.2%
18 and over	7,945	76.8%
65 and over	1,695	16.4%
Median age	38.0 years

Race & ethnicity

White 81.2%

Black or African American 6.1%

Asian 4.2%

Two or more races 4.1%

Hispanic or Latino 3.4%

Other race 1%

Group	Count	%
White	8,700	81.2%
Black or African American	650	6.1%
Asian	448	4.2%
Two or more races	444	4.1%
Hispanic or Latino	369	3.4%
Other race	104	1%

Household income

Under $10k 1.1%

$10k–$15k 0.4%

$15k–$25k 2.0%

$25k–$35k 2.9%

$35k–$50k 4.9%

$50k–$75k 10.3%

$75k–$100k 16.1%

$100k–$150k 30.2%

$150k–$200k 18.1%

$200k+ 14.0%

Range	% of households
Under $10k	1.1%
$10k–$15k	0.4%
$15k–$25k	2.0%
$25k–$35k	2.9%
$35k–$50k	4.9%
$50k–$75k	10.3%
$75k–$100k	16.1%
$100k–$150k	30.2%
$150k–$200k	18.1%
$200k+	14.0%
Median income	$118,048

Housing

Home values

Under $50k 1.1%

$100k–$150k 1.2%

$150k–$200k 1.1%

$200k–$300k 19.2%

$300k–$500k 67.6%

$500k–$1M 9.6%

$1M+ 0.1%

Housing overview

Metric	Value
Median home value	$371,000
Median rent / month	$1,813
Owner occupied	81.0%
Renter occupied	19.0%
Vacant	6.6%
Single-family detached	85.7%
Large apartment buildings	8.1%
Mobile homes	0.0%
Median rooms	7.1
Avg household size (owned)	2.73

Year built

Era	%
2020 or later	0.9%
2010–2019	7.4%
2000–2009	3.0%
1990–1999	6.3%
1980–1989	9.5%
1970–1979	6.0%
1960–1969	13.3%
1950–1959	36.2%
1940–1949	5.6%
1939 or earlier	11.6%

Bedrooms

Size	% of units
No bedroom (studio)	2.7%
1 bedroom	5.8%
2 bedrooms	10.6%
3 bedrooms	42.6%
4 bedrooms	32.9%
5+ bedrooms	5.4%

Vehicles per household

Vehicles	% of households
No vehicle	2.4%
1 vehicle	28.2%
2 vehicles	43.7%
3 or more	25.8%

Heating fuel

Fuel type	%
Utility gas	55.8%
Electricity	32.5%
Propane / LP gas	1.7%
Fuel oil	8.2%
Wood	0.9%
Solar	0.3%
No fuel used	0.7%

Households & families

Household type	Count	%
Married-couple family	2,148	54.7%
Cohabiting couple	253	6.4%
Male householder, no spouse	646	16.5%
Female householder, no spouse	879	22.4%
Households with children under 18	1,093	27.8%
Households with seniors (65+)	1,217	31.0%
Average household size	2.62

Marital status

Status	Male	Female
Never married	33.3%	24.0%
Married	52.2%	52.1%
Separated	0.8%	0.2%
Widowed	2.0%	10.0%
Divorced	11.8%	13.7%

Education

Less than 9th grade 2.0%

Some HS, no diploma 4.1%

HS graduate 21.6%

Some college, no degree 21.3%

Associate's degree 10.2%

Bachelor's degree 24.7%

Graduate / professional 16.3%

Metric	%
HS diploma or higher	94.0%
Bachelor's or higher	41.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	150	5.9%
Kindergarten	72	2.8%
Elementary school	1,047	40.8%
High school	623	24.3%
College / grad school	672	26.2%

Employment

Industry of employment

Education & healthcare 23.3%

Professional & management 18.1%

Manufacturing 10.0%

Arts, food & hospitality 8.7%

Public administration 8.4%

Construction 6.6%

Finance & real estate 6.4%

Transportation & utilities 5.6%

Retail trade 5.2%

Wholesale trade 4.0%

Other services 3.0%

Information 0.8%

Occupation

Category	%
Management, business & arts	56.5%
Service	9.1%
Sales & office	17.2%
Natural resources & construction	7.4%
Production & transportation	9.8%

Employment type

Type	%
Private sector	75.2%
Government	21.1%
Self-employed	3.6%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	78.7%
Carpool	7.0%
Public transit	1.7%
Walk	0.5%
Other means	0.5%
Avg commute (minutes)	23.4

Poverty

All people 4.4%

Under 18 years 9.3%

18 and over 2.9%

Married-couple families 1.0%

Female-led households 7.5%

Income support

Source	% of households
Social Security	27.9%
Retirement income	27.4%
Supplemental Security	2.6%
Cash public assistance	0.7%
Food stamps / SNAP	3.2%

Health indicators

Condition	%
High blood pressure	33.7%
High cholesterol	34.9%
Heart disease	6.3%
Stroke	2.6%
Asthma	8.6%
Arthritis	25.5%
Kidney disease	2.6%
Pulmonary disease	5.6%
Cancer	7.7%

Behavior / access	%
Binge drinking	16.0%
No physical activity	19.1%
Less than 7 hrs sleep	31.3%
Fair or poor health	10.2%
Poor mental health	12.7%
Poor physical health	8.4%
No health insurance	8.4%
Visited doctor (checkup)	76.3%
Visited dentist	72.1%
Cholesterol screening	93.1%
Teeth loss	8.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	875	11.1%

Disability	%
Any disability	9.6%
Under 18	2.4%
18–64 years	6.3%
65 and over	32.0%

Health insurance coverage

Type	%
Private insurance	86.8%
Public insurance	25.0%
Uninsured under 19	0.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	9,659	93.4%
Spanish	194	2.0%
Other Indo-European	102	1.1%
Asian & Pacific Islander	89	0.9%
Other languages	3	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	9,806	94.8%
Born in same state	9,564	92.4%
Born in different state	6,924	66.9%
Foreign born	242	2.3%
Naturalized citizen	540	5.2%
Not a US citizen	408	75.6%

Ancestry

Ancestry	Count	%
Italian	1,877	18.1%
French	1,454	14.1%
Arab	353	3.4%
English	143	1.4%
Irish	86	0.8%

Ancestry	Count	%
German	48	0.5%
Norwegian	43	0.4%
Polish	33	0.3%
Dutch	27	0.3%

Technology access

Metric	% of households
Computer access	37.9%
Internet access	98.0%

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

Frequently asked questions

What ZIP codes does Linthicum Heights, MD have?

Linthicum Heights, MD has one ZIP code: 21090. Each ZIP code serves a distinct delivery area within the city and surrounding region.