Zip code 21090: Linthicum Heights, Maryland

Q: What city is zip code 21090?

21090 is assigned to Linthicum Heights, Maryland. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 21090 in?

21090 is in Anne Arundel County, Maryland.

Q: What is the population of 21090?

About 10,652 people live in 21090, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 21090?

The median household income in 21090 is $138,119.

Q: What zip codes are near 21090?

The closest zip codes to 21090 are 21227, 21240, 21225, 21061, 21077.

Residential delivery areaAnne Arundel CountyEastern Time

Population

10,652

Median household income

$138K

U.S. $81K

Median home value

$410K

U.S. $333K

Median rent

$2,055/mo

U.S. $1,413

Median age

36.8

U.S. 38.9

Land area

6.6 sq mi

1,604 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 21090

21090 is a suburban zip code in Linthicum Heights, Maryland (Anne Arundel County), covering 6.6 sq mi of land. About 10,652 people live here, or 1,604 per square mile. The median resident is 36.8 years old, compared with 38.9 nationally.

The median household earns $138,119 a year, 71% above the national median of $80,734. 3.5% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $410,400, or 3.0 years of median household income (U.S.: 4.1 years), which makes homes relatively affordable for local earners. 83% of occupied homes are lived in by their owners, and renters pay a median of $2,055 a month.

43% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 23.5 minutes each way, and 18% of workers work from home. The most common jobs among working residents are in management; office and administrative support; and engineering and science.

How 21090 compares

Sorted from highest to lowest national percentile

Government workers25.7%
95th
U.S. 14.5% · MD 22.5%129th of 444 in MD
Median household income$138,119
92nd
StrengthU.S. $80,734 · MD $103,678107th of 414 in MD
Tech workers7.5%
92nd
U.S. 3.8% · MD 6.4%106th of 444 in MD
Median earnings per worker$72,056
88th
StrengthU.S. $49,666 · MD $61,200146th of 443 in MD
Median gross rent$2,055
86th
U.S. $1,413 · MD $1,70575th of 338 in MD
Homeownership rate83.2%
85th
StrengthU.S. 65.2% · MD 67.6%204th of 441 in MD
Per capita income$55,969
80th
StrengthU.S. $44,673 · MD $52,979180th of 446 in MD
Veterans7.8%
75th
U.S. 6.2% · MD 6.8%177th of 446 in MD
Broadband access94.7%
73rd
U.S. 91% · MD 92.4%183rd of 441 in MD
Work from home18%
72nd
U.S. 15.1% · MD 19.3%198th of 444 in MD
Bachelor's degree or higher42.8%
70th
U.S. 35.7% · MD 43.4%179th of 445 in MD
Median home value$410,400
64th
U.S. $332,700 · MD $419,900218th of 421 in MD
Residents under 1823.6%
64th
U.S. 22% · MD 22.2%139th of 446 in MD
Population density1,604/sq mi
52nd
U.S. 95/sq mi · MD 639/sq mi133rd of 446 in MD
Housing vacancy6.5%
49th
U.S. 10.1% · MD 7.7%186th of 441 in MD
Diversity index41.9
39th
U.S. 61.4 · MD 67.7224th of 446 in MD
Residents 65 and older15.2%
39th
U.S. 17.2% · MD 16.7%311th of 446 in MD
Foreign-born residents6.1%
34th
U.S. 14.1% · MD 16.6%231st of 446 in MD
Median age36.8
33rd
U.S. 38.9 · MD 39.4353rd of 446 in MD
Average commute23.5 min
33rd
U.S. 26.4 min · MD 31.1 min377th of 421 in MD
Uninsured rate4.1%
23rd
U.S. 8.4% · MD 6.3%199th of 444 in MD
Population10,652
17th
U.S. 334,922,499 · MD 6,206,011177th of 446 in MD
Self-employed workers6.5%
14th
U.S. 10% · MD 8.7%326th of 444 in MD
Unemployment rate2.6%
11th
StrengthU.S. 5.2% · MD 4.9%307th of 444 in MD
Rent-burdened renters30.6%
5th
StrengthU.S. 51.1% · MD 51.5%325th of 404 in MD
Poverty rate3.5%
4th
StrengthU.S. 12.5% · MD 9.4%329th of 441 in MD
Healthcare workers4.6%
3rd
U.S. 9.7% · MD 9%366th of 444 in MD
Income inequality (Gini)0.318
1st
StrengthU.S. 0.483 · MD 0.456394th of 438 in MD

Measure	21090	Anne Arundel	MD	U.S.	National percentile	Rank in MD
Government workers	25.7%	23%	22.5%	14.5%	95th	129th of 444
Median household incomeStrength	$138,119	$124,911	$103,678	$80,734	92nd	107th of 414
Tech workers	7.5%	7.5%	6.4%	3.8%	92nd	106th of 444
Median earnings per workerStrength	$72,056	$70,116	$61,200	$49,666	88th	146th of 443
Median gross rent	$2,055	$2,071	$1,705	$1,413	86th	75th of 338
Homeownership rateStrength	83.2%	75.1%	67.6%	65.2%	85th	204th of 441
Per capita incomeStrength	$55,969	$59,733	$52,979	$44,673	80th	180th of 446
Veterans	7.8%	9.8%	6.8%	6.2%	75th	177th of 446
Broadband access	94.7%	95.5%	92.4%	91%	73rd	183rd of 441
Work from home	18%	18.5%	19.3%	15.1%	72nd	198th of 444
Bachelor's degree or higher	42.8%	45.8%	43.4%	35.7%	70th	179th of 445
Median home value	$410,400	$467,900	$419,900	$332,700	64th	218th of 421
Residents under 18	23.6%	22.4%	22.2%	22%	64th	139th of 446
Population density	1,604/sq mi	1,442/sq mi	639/sq mi	95/sq mi	52nd	133rd of 446
Housing vacancy	6.5%	4.9%	7.7%	10.1%	49th	186th of 441
Diversity index	41.9	57.3	67.7	61.4	39th	224th of 446
Residents 65 and older	15.2%	15.9%	16.7%	17.2%	39th	311th of 446
Foreign-born residents	6.1%	10%	16.6%	14.1%	34th	231st of 446
Median age	36.8	39	39.4	38.9	33rd	353rd of 446
Average commute	23.5 min	28.9 min	31.1 min	26.4 min	33rd	377th of 421
Uninsured rate	4.1%	4.7%	6.3%	8.4%	23rd	199th of 444
Population	10,652	598,166	6,206,011	334,922,499	17th	177th of 446
Self-employed workers	6.5%	9.3%	8.7%	10%	14th	326th of 444
Unemployment rateStrength	2.6%	3.7%	4.9%	5.2%	11th	307th of 444
Rent-burdened rentersStrength	30.6%	47.2%	51.5%	51.1%	5th	325th of 404
Poverty rateStrength	3.5%	5.6%	9.4%	12.5%	4th	329th of 441
Healthcare workers	4.6%	7.9%	9%	9.7%	3rd	366th of 444
Income inequality (Gini)Strength	0.318	0.418	0.456	0.483	1st	394th of 438

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

16%

5–17

18–24

14%

25–34

14%

35–44

12%

45–54

12%

55–64

10%

65–74

75+

Median age

36.8

Under 18

23.6%

65 and over

15.2%

Race and ethnicity

White75%
Black9%
Hispanic6%
Asian4%
Native American0%
Pacific Islander0%
Other0.2%
Multiracial6%

Diversity index

41.9

U.S. 61.4

Foreign-born

6.1%

U.S. 14.1%

Born in state

64.6%

Language spoken at home (households)

English only

89%

Spanish

Other Indo-European

Asian / Pacific

Other

0.3%

Households

Households: 3,979
Average household size: 2.7
Family households: 71.9%
Married couples: 58.4%
Living alone: 22%
Veterans (of adults): 7.8%
Male / female: 53% / 47%

Income and poverty

Household income distribution

<$25k

$25–50k

$50–75k

11%

$75–100k

11%

$100–150k

27%

$150–200k

16%

$200k+

25%

Median household income

21090

$138,119

Anne Arundel Co.

$124,911

Maryland

$103,678

United States

$80,734

Per capita income

$55,969

U.S. $44,673

Poverty rate

3.5%

U.S. 12.5%

Households earning $150K+

40.5%

U.S. 23%

Income inequality (Gini)

0.318

U.S. 0.483

Housing

Median home value

21090

$410,400

Anne Arundel Co.

$467,900

Maryland

$419,900

United States

$332,700

Median gross rent

21090

$2,055

Anne Arundel Co.

$2,071

Maryland

$1,705

United States

$1,413

Types of housing

Single-family

84%

2–4 units

5–19 units

20+ units

Mobile home

Boat, RV, van

Housing units: 4,255
Owner-occupied: 83.2%
Vacant: 6.5%
Median year built: 1959
Median rooms: 7.2
Renters paying 30%+ of income: 30.6%
Renters paying 50%+ of income: 3.6%
Home value to income: 3.0× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

74%

Carpooled

Transit

0.3%

Walked

0.5%

Bicycle

Worked from home

18%

Other

0.7%

Commute time (one way)

<10 min

10–19

33%

20–29

24%

30–44

21%

45–59

60+

Average commute

23.5 min

U.S. 26.4 min

Unemployment

2.6%

U.S. 5.2%

In labor force

72.7%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Management

18%

Office and admin

11%

Engineering and science

Transportation and moving

Computer and math

Education

Business and finance

Sales

Healthcare

Police and fire

Construction and repair

Food service

Legal and social services

Production

Arts, media and sports

Cleaning and personal care

Farming, fishing and forestry

Industries

Professional and technical services

12%

Education

12%

Public administration

12%

Health care and social assistance

11%

Manufacturing

Transportation, warehousing and utilities

Restaurants and hotels

Retail

Construction

Finance, insurance and real estate

Admin, support and management

Other services

Wholesale

Arts and recreation

Information

Agriculture and mining

Median earnings per worker

$72,056

U.S. $49,666

Self-employed

6.5%

U.S. 10%

Government workers

25.7%

U.S. 14.5%

Nonprofit workers

7.6%

U.S. 8.8%

Median earnings by type of work

Type of work	21090	U.S.
Management, business, science and arts	$91,204	$74,888
Service	$27,885	$26,804
Sales and office	$51,563	$40,476
Construction and maintenance	$73,077	$49,199
Production and transportation	$54,375	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

20%

Some college

24%

Associate's

Bachelor's

22%

Graduate

21%

High school graduate or higher: 94.7%
Bachelor's degree or higher: 42.8%
Graduate or professional degree: 20.8%
Households with broadband: 94.7%
Cable, fiber or DSL: 84.6%
No internet access: 1.4%
Without health insurance: 4.1%
Limited-English households: 0.3%

Geography

City (USPS): Linthicum Heights
State: Maryland
County: Anne Arundel County
Center point: 39.2096° N, 76.6647° W
Land area: 6.6 sq mi
Water area: 0.1 sq mi
Time zone: Eastern Time (UTC-5, UTC-4 in summer)
Zip type: Residential delivery area

Cities and towns within this zip

Linthicum (unincorporated)79% of zip

Census places overlapping the zip's area. Mail may use a different city name than the municipality.

Zip codes near 21090

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
21227	Halethorpe, MD	2.2 mi	34,907	$85,986	$289,400
21240	Baltimore, MD	2.4 mi	0	—	—
21225	Brooklyn, MD	2.9 mi	34,062	$54,020	$229,000
21061	Glen Burnie, MD	3.8 mi	57,230	$87,751	$339,100
21077	Harmans, MD	4 mi	63	—	—
21250	Baltimore, MD	4 mi	2,834	—	—
21076	Hanover, MD	4.1 mi	24,268	$146,869	$513,300
21230	Baltimore, MD	4.5 mi	32,977	$91,842	$330,100
21075	Elkridge, MD	4.6 mi	37,363	$135,303	$455,300
21223	Baltimore, MD	5.1 mi	19,572	$45,840	$110,600
21060	Glen Burnie, MD	5.3 mi	39,730	$104,715	$377,100
21229	Baltimore, MD	5.4 mi	46,679	$60,047	$201,300

Zip codes like 21090 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 21090

What city is zip code 21090?

21090 is assigned to Linthicum Heights, Maryland. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 21090 in?

21090 is in Anne Arundel County, Maryland.

What is the population of 21090?

About 10,652 people live in 21090, according to the Census Bureau's American Community Survey.

What time zone is 21090 in?

21090 is in Eastern Time.

What is the median household income in 21090?

The median household income in 21090 is $138,119.

What zip codes are near 21090?

The closest zip codes to 21090 are 21227, 21240, 21225, 21061, 21077.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 21090, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.