Zip code 21133: Randallstown, Maryland

Q: What city is zip code 21133?

21133 is assigned to Randallstown, Maryland. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 21133 in?

21133 is in Baltimore County, Maryland.

Q: What is the population of 21133?

About 31,398 people live in 21133, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 21133?

The median household income in 21133 is $80,480.

Q: What zip codes are near 21133?

The closest zip codes to 21133 are 21163, 21244, 21117, 21136, 21208.

Residential delivery areaBaltimore CountyEastern Time

Population

31,398

Median household income

$80K

U.S. $81K

Median home value

$323K

U.S. $333K

Median rent

$1,556/mo

U.S. $1,413

Median age

47.1

U.S. 38.9

Land area

9 sq mi

3,504 people/sq mi

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

About 21133

21133 is an urban zip code in Randallstown, Maryland (Baltimore County), covering 9 sq mi of land. About 31,398 people live here, or 3,504 per square mile. The median resident is 47.1 years old, compared with 38.9 nationally.

The median household earns $80,480 a year, close to the national median of $80,734. 9.3% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $322,800, or 4.0 years of median household income (U.S.: 4.1 years), which makes homes about as affordable as the national average for local earners. 68% of occupied homes are lived in by their owners, and renters pay a median of $1,556 a month.

33% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 31.8 minutes each way, and 14% of workers work from home. The most common jobs among working residents are in office and administrative support; transportation and moving goods; and healthcare.

How 21133 compares

Sorted from highest to lowest national percentile

Rent-burdened renters68.5%
96th
WeaknessU.S. 51.1% · MD 51.5%62nd of 404 in MD
Government workers26.6%
96th
U.S. 14.5% · MD 22.5%115th of 444 in MD
Median age47.1
91st
U.S. 38.9 · MD 39.4108th of 446 in MD
Tech workers5.6%
83rd
U.S. 3.8% · MD 6.4%182nd of 444 in MD
Average commute31.8 min
82nd
WeaknessU.S. 26.4 min · MD 31.1 min196th of 421 in MD
Veterans8.1%
78th
U.S. 6.2% · MD 6.8%160th of 446 in MD
Healthcare workers11.6%
78th
U.S. 9.7% · MD 9%78th of 444 in MD
Residents 65 and older20.7%
77th
U.S. 17.2% · MD 16.7%145th of 446 in MD
Unemployment rate6.6%
75th
U.S. 5.2% · MD 4.9%90th of 444 in MD
Population density3,504/sq mi
71st
U.S. 95/sq mi · MD 639/sq mi71st of 446 in MD
Foreign-born residents17.2%
69th
U.S. 14.1% · MD 16.6%82nd of 446 in MD
Median gross rent$1,556
59th
U.S. $1,413 · MD $1,705189th of 338 in MD
Median earnings per worker$51,104
59th
U.S. $49,666 · MD $61,200313th of 443 in MD
Per capita income$43,002
58th
U.S. $44,673 · MD $52,979293rd of 446 in MD
Broadband access93.1%
58th
U.S. 91% · MD 92.4%226th of 441 in MD
Work from home13.9%
56th
U.S. 15.1% · MD 19.3%276th of 444 in MD
Bachelor's degree or higher33.3%
53rd
U.S. 35.7% · MD 43.4%257th of 445 in MD
Population31,398
52nd
U.S. 334,922,499 · MD 6,206,01179th of 446 in MD
Income inequality (Gini)0.437
52nd
U.S. 0.483 · MD 0.456117th of 438 in MD
Median household income$80,480
51st
U.S. $80,734 · MD $103,678319th of 414 in MD
Homeownership rate68.4%
49th
U.S. 65.2% · MD 67.6%319th of 441 in MD
Median home value$322,800
48th
U.S. $332,700 · MD $419,900312th of 421 in MD
Uninsured rate6.3%
45th
U.S. 8.4% · MD 6.3%108th of 444 in MD
Poverty rate9.3%
40th
U.S. 12.5% · MD 9.4%151st of 441 in MD
Diversity index39.6
35th
U.S. 61.4 · MD 67.7238th of 446 in MD
Self-employed workers7.7%
28th
U.S. 10% · MD 8.7%274th of 444 in MD
Residents under 1818%
19th
U.S. 22% · MD 22.2%331st of 446 in MD
Housing vacancy2.1%
4th
U.S. 10.1% · MD 7.7%359th of 441 in MD

Measure	21133	Baltimore	MD	U.S.	National percentile	Rank in MD
Rent-burdened rentersWeakness	68.5%	54.2%	51.5%	51.1%	96th	62nd of 404
Government workers	26.6%	19.1%	22.5%	14.5%	96th	115th of 444
Median age	47.1	39.7	39.4	38.9	91st	108th of 446
Tech workers	5.6%	5.2%	6.4%	3.8%	83rd	182nd of 444
Average commuteWeakness	31.8 min	28 min	31.1 min	26.4 min	82nd	196th of 421
Veterans	8.1%	5.8%	6.8%	6.2%	78th	160th of 446
Healthcare workers	11.6%	10.8%	9%	9.7%	78th	78th of 444
Residents 65 and older	20.7%	18.1%	16.7%	17.2%	77th	145th of 446
Unemployment rate	6.6%	4.9%	4.9%	5.2%	75th	90th of 444
Population density	3,504/sq mi	1,422/sq mi	639/sq mi	95/sq mi	71st	71st of 446
Foreign-born residents	17.2%	13.2%	16.6%	14.1%	69th	82nd of 446
Median gross rent	$1,556	$1,627	$1,705	$1,413	59th	189th of 338
Median earnings per worker	$51,104	$57,592	$61,200	$49,666	59th	313th of 443
Per capita income	$43,002	$49,074	$52,979	$44,673	58th	293rd of 446
Broadband access	93.1%	91.4%	92.4%	91%	58th	226th of 441
Work from home	13.9%	16.5%	19.3%	15.1%	56th	276th of 444
Bachelor's degree or higher	33.3%	42.3%	43.4%	35.7%	53rd	257th of 445
Population	31,398	850,796	6,206,011	334,922,499	52nd	79th of 446
Income inequality (Gini)	0.437	0.458	0.456	0.483	52nd	117th of 438
Median household income	$80,480	$91,768	$103,678	$80,734	51st	319th of 414
Homeownership rate	68.4%	66.4%	67.6%	65.2%	49th	319th of 441
Median home value	$322,800	$349,300	$419,900	$332,700	48th	312th of 421
Uninsured rate	6.3%	5.4%	6.3%	8.4%	45th	108th of 444
Poverty rate	9.3%	9.8%	9.4%	12.5%	40th	151st of 441
Diversity index	39.6	63.6	67.7	61.4	35th	238th of 446
Self-employed workers	7.7%	8.2%	8.7%	10%	28th	274th of 444
Residents under 18	18%	21.9%	22.2%	22%	19th	331st of 446
Housing vacancy	2.1%	5.1%	7.7%	10.1%	4th	359th of 441

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

14%

5–17

18–24

10%

25–34

11%

35–44

14%

45–54

18%

55–64

13%

65–74

75+

Median age

47.1

Under 18

18%

65 and over

20.7%

Race and ethnicity

White9%
Black77%
Hispanic8%
Asian2%
Native American0.1%
Pacific Islander0%
Other1%
Multiracial3%

Diversity index

39.6

U.S. 61.4

Foreign-born

17.2%

U.S. 14.1%

Born in state

61.5%

Language spoken at home (households)

English only

85%

Spanish

Other Indo-European

Asian / Pacific

Other

Households

Households: 12,204
Average household size: 2.5
Family households: 63.1%
Married couples: 39.9%
Living alone: 31.9%
Veterans (of adults): 8.1%
Male / female: 47% / 53%

Income and poverty

Household income distribution

<$25k

13%

$25–50k

18%

$50–75k

14%

$75–100k

15%

$100–150k

17%

$150–200k

11%

$200k+

13%

Median household income

21133

$80,480

Baltimore Co.

$91,768

Maryland

$103,678

United States

$80,734

Per capita income

$43,002

U.S. $44,673

Poverty rate

9.3%

U.S. 12.5%

Households earning $150K+

23.3%

U.S. 23%

Income inequality (Gini)

0.437

U.S. 0.483

Housing

Median home value

21133

$322,800

Baltimore Co.

$349,300

Maryland

$419,900

United States

$332,700

Median gross rent

21133

$1,556

Baltimore Co.

$1,627

Maryland

$1,705

United States

$1,413

Types of housing

Single-family

73%

2–4 units

5–19 units

19%

20+ units

Mobile home

Boat, RV, van

Housing units: 12,460
Owner-occupied: 68.4%
Vacant: 2.1%
Median year built: 1977
Median rooms: 6.5
Renters paying 30%+ of income: 68.5%
Renters paying 50%+ of income: 39%
Home value to income: 4.0× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

71%

Carpooled

Transit

Walked

0.5%

Bicycle

0.0%

Worked from home

14%

Other

Commute time (one way)

<10 min

10–19

19%

20–29

21%

30–44

33%

45–59

10%

60+

13%

Average commute

31.8 min

U.S. 26.4 min

Unemployment

6.6%

U.S. 5.2%

In labor force

64.4%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Office and admin

12%

Transportation and moving

12%

Healthcare

12%

Management

10%

Business and finance

Sales

Computer and math

Cleaning and personal care

Police and fire

Construction and repair

Engineering and science

Education

Legal and social services

Food service

Production

Arts, media and sports

Farming, fishing and forestry

Industries

Health care and social assistance

21%

Public administration

14%

Transportation, warehousing and utilities

11%

Retail

10%

Education

Professional and technical services

Finance, insurance and real estate

Construction

Manufacturing

Restaurants and hotels

Admin, support and management

Other services

Arts and recreation

Information

Wholesale

Agriculture and mining

0.1%

Median earnings per worker

$51,104

U.S. $49,666

Self-employed

7.7%

U.S. 10%

Government workers

26.6%

U.S. 14.5%

Nonprofit workers

9.7%

U.S. 8.8%

Median earnings by type of work

Type of work	21133	U.S.
Management, business, science and arts	$80,381	$74,888
Service	$29,676	$26,804
Sales and office	$48,041	$40,476
Construction and maintenance	$41,188	$49,199
Production and transportation	$32,500	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

26%

Some college

25%

Associate's

Bachelor's

19%

Graduate

15%

High school graduate or higher: 90.8%
Bachelor's degree or higher: 33.3%
Graduate or professional degree: 14.7%
Households with broadband: 93.1%
Cable, fiber or DSL: 78.3%
No internet access: 4%
Without health insurance: 6.3%
Limited-English households: 1.6%

Geography

City (USPS): Randallstown
State: Maryland
County: Baltimore County
Center point: 39.3784° N, 76.8113° W
Land area: 9 sq mi
Water area: under 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

Randallstown (unincorporated)79% of zip
Milford Mill (unincorporated)3% of zip

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

Zip codes near 21133

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
21163	Woodstock, MD	3.4 mi	7,539	$134,672	$602,800
21244	Windsor Mill, MD	3.5 mi	38,208	$85,114	$282,600
21117	Owings Mills, MD	3.9 mi	62,816	$101,831	$387,400
21136	Reisterstown, MD	4.6 mi	32,088	$118,500	$422,100
21208	Pikesville, MD	4.7 mi	37,276	$90,131	$337,900
21282	Pikesville, MD · PO box	4.8 mi	—	—	—
21104	Marriottsville, MD	5.8 mi	6,052	$191,804	$680,200
21207	Gwynn Oak, MD	6.2 mi	47,099	$67,060	$260,300
21153	Stevenson, MD	6.5 mi	456	$220,179	$902,300
21071	Glyndon, MD	7.3 mi	404	$213,500	$450,500
21215	Baltimore, MD	7.3 mi	52,229	$51,587	$201,200
21022	Brooklandville, MD · PO box	7.6 mi	—	—	—

Zip codes like 21133 elsewhere

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

Harrison Township, MI

Questions about 21133

What city is zip code 21133?

21133 is assigned to Randallstown, Maryland. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 21133 in?

21133 is in Baltimore County, Maryland.

What is the population of 21133?

About 31,398 people live in 21133, according to the Census Bureau's American Community Survey.

What time zone is 21133 in?

21133 is in Eastern Time.

What is the median household income in 21133?

The median household income in 21133 is $80,480.

What zip codes are near 21133?

The closest zip codes to 21133 are 21163, 21244, 21117, 21136, 21208.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 21133, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.