Zip code 21111: Monkton, Maryland

Q: What city is zip code 21111?

21111 is assigned to Monkton, Maryland. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 21111 in?

21111 is mostly in Baltimore County, but it extends into 1 other county.

Q: What is the population of 21111?

About 4,714 people live in 21111, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 21111?

The median household income in 21111 is $136,304.

Q: What zip codes are near 21111?

The closest zip codes to 21111 are 21131, 21152, 21161, 21120, 21065.

Residential delivery areaBaltimore CountyEastern Time

Population

4,714

Median household income

$136K

U.S. $81K

Median home value

$607K

U.S. $333K

Median rent

$1,359/mo

U.S. $1,413

Median age

48.7

U.S. 38.9

Land area

35 sq mi

133 people/sq mi

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

About 21111

21111 is a small-town zip code in Monkton, Maryland (Baltimore County), covering 35 sq mi of land. About 4,714 people live here, or 133 per square mile. The median resident is 48.7 years old, compared with 38.9 nationally.

The median household earns $136,304 a year, 69% above the national median of $80,734. 6.3% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $607,200, or 4.5 years of median household income (U.S.: 4.1 years), which makes homes about as affordable as the national average for local earners. 96% of occupied homes are lived in by their owners, and renters pay a median of $1,359 a month.

64% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 31.9 minutes each way, and 26% of workers work from home. The most common jobs among working residents are in management; sales; and office and administrative support.

How 21111 compares

Sorted from highest to lowest national percentile

Homeownership rate95.5%
99th
StrengthU.S. 65.2% · MD 67.6%58th of 441 in MD
Broadband access99.1%
99th
StrengthU.S. 91% · MD 92.4%48th of 441 in MD
Rent-burdened renters69.8%
97th
WeaknessU.S. 51.1% · MD 51.5%58th of 404 in MD
Median age48.7
94th
U.S. 38.9 · MD 39.490th of 446 in MD
Median earnings per worker$81,820
94th
StrengthU.S. $49,666 · MD $61,20080th of 443 in MD
Bachelor's degree or higher63.7%
92nd
StrengthU.S. 35.7% · MD 43.4%51st of 445 in MD
Median household income$136,304
91st
StrengthU.S. $80,734 · MD $103,678115th of 414 in MD
Per capita income$69,759
91st
StrengthU.S. $44,673 · MD $52,97969th of 446 in MD
Work from home26.2%
90th
U.S. 15.1% · MD 19.3%71st of 444 in MD
Unemployment rate8.6%
89th
WeaknessU.S. 5.2% · MD 4.9%39th of 444 in MD
Residents 65 and older23.8%
89th
U.S. 17.2% · MD 16.7%93rd of 446 in MD
Average commute31.9 min
83rd
WeaknessU.S. 26.4 min · MD 31.1 min193rd of 421 in MD
Self-employed workers13.1%
83rd
U.S. 10% · MD 8.7%111th of 444 in MD
Median home value$607,200
82nd
U.S. $332,700 · MD $419,90075th of 421 in MD
Veterans7.4%
71st
U.S. 6.2% · MD 6.8%203rd of 446 in MD
Residents under 1823.9%
66th
U.S. 22% · MD 22.2%134th of 446 in MD
Median gross rent$1,359
47th
U.S. $1,413 · MD $1,705235th of 338 in MD
Tech workers2.5%
43rd
U.S. 3.8% · MD 6.4%314th of 444 in MD
Income inequality (Gini)0.421
37th
U.S. 0.483 · MD 0.456165th of 438 in MD
Healthcare workers8.2%
31st
U.S. 9.7% · MD 9%212th of 444 in MD
Poverty rate6.3%
21st
U.S. 12.5% · MD 9.4%233rd of 441 in MD
Government workers10.1%
19th
U.S. 14.5% · MD 22.5%404th of 444 in MD
Population density133/sq mi
16th
U.S. 95/sq mi · MD 639/sq mi328th of 446 in MD
Foreign-born residents2.4%
14th
U.S. 14.1% · MD 16.6%342nd of 446 in MD
Diversity index15.8
9th
U.S. 61.4 · MD 67.7377th of 446 in MD
Population4,714
8th
U.S. 334,922,499 · MD 6,206,011241st of 446 in MD
Uninsured rate1.9%
5th
StrengthU.S. 8.4% · MD 6.3%331st of 444 in MD
Housing vacancy1.6%
2nd
U.S. 10.1% · MD 7.7%377th of 441 in MD

Measure	21111	Baltimore	MD	U.S.	National percentile	Rank in MD
Homeownership rateStrength	95.5%	66.4%	67.6%	65.2%	99th	58th of 441
Broadband accessStrength	99.1%	91.4%	92.4%	91%	99th	48th of 441
Rent-burdened rentersWeakness	69.8%	54.2%	51.5%	51.1%	97th	58th of 404
Median age	48.7	39.7	39.4	38.9	94th	90th of 446
Median earnings per workerStrength	$81,820	$57,592	$61,200	$49,666	94th	80th of 443
Bachelor's degree or higherStrength	63.7%	42.3%	43.4%	35.7%	92nd	51st of 445
Median household incomeStrength	$136,304	$91,768	$103,678	$80,734	91st	115th of 414
Per capita incomeStrength	$69,759	$49,074	$52,979	$44,673	91st	69th of 446
Work from home	26.2%	16.5%	19.3%	15.1%	90th	71st of 444
Unemployment rateWeakness	8.6%	4.9%	4.9%	5.2%	89th	39th of 444
Residents 65 and older	23.8%	18.1%	16.7%	17.2%	89th	93rd of 446
Average commuteWeakness	31.9 min	28 min	31.1 min	26.4 min	83rd	193rd of 421
Self-employed workers	13.1%	8.2%	8.7%	10%	83rd	111th of 444
Median home value	$607,200	$349,300	$419,900	$332,700	82nd	75th of 421
Veterans	7.4%	5.8%	6.8%	6.2%	71st	203rd of 446
Residents under 18	23.9%	21.9%	22.2%	22%	66th	134th of 446
Median gross rent	$1,359	$1,627	$1,705	$1,413	47th	235th of 338
Tech workers	2.5%	5.2%	6.4%	3.8%	43rd	314th of 444
Income inequality (Gini)	0.421	0.458	0.456	0.483	37th	165th of 438
Healthcare workers	8.2%	10.8%	9%	9.7%	31st	212th of 444
Poverty rate	6.3%	9.8%	9.4%	12.5%	21st	233rd of 441
Government workers	10.1%	19.1%	22.5%	14.5%	19th	404th of 444
Population density	133/sq mi	1,422/sq mi	639/sq mi	95/sq mi	16th	328th of 446
Foreign-born residents	2.4%	13.2%	16.6%	14.1%	14th	342nd of 446
Diversity index	15.8	63.6	67.7	61.4	9th	377th of 446
Population	4,714	850,796	6,206,011	334,922,499	8th	241st of 446
Uninsured rateStrength	1.9%	5.4%	6.3%	8.4%	5th	331st of 444
Housing vacancy	1.6%	5.1%	7.7%	10.1%	2nd	377th 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

15%

5–17

18–24

25–34

13%

35–44

13%

45–54

18%

55–64

13%

65–74

11%

75+

Median age

48.7

Under 18

23.9%

65 and over

23.8%

Race and ethnicity

White92%
Black3%
Hispanic2%
Asian0.5%
Native American0%
Pacific Islander0%
Other0.5%
Multiracial2%

Diversity index

15.8

U.S. 61.4

Foreign-born

2.4%

U.S. 14.1%

Born in state

64.7%

Language spoken at home (households)

English only

94%

Spanish

Other Indo-European

Asian / Pacific

0.8%

Other

Households

Households: 1,908
Average household size: 2.5
Family households: 71.3%
Married couples: 61.3%
Living alone: 25.7%
Veterans (of adults): 7.4%
Male / female: 52% / 48%

Income and poverty

Household income distribution

<$25k

$25–50k

11%

$50–75k

$75–100k

$100–150k

23%

$150–200k

16%

$200k+

28%

Median household income

21111

$136,304

Baltimore Co.

$91,768

Maryland

$103,678

United States

$80,734

Per capita income

$69,759

U.S. $44,673

Poverty rate

6.3%

U.S. 12.5%

Households earning $150K+

43.6%

U.S. 23%

Income inequality (Gini)

0.421

U.S. 0.483

Housing

Median home value

21111

$607,200

Baltimore Co.

$349,300

Maryland

$419,900

United States

$332,700

Median gross rent

21111

$1,359

Baltimore Co.

$1,627

Maryland

$1,705

United States

$1,413

Types of housing

Single-family

100%

2–4 units

5–19 units

20+ units

Mobile home

Boat, RV, van

Housing units: 1,939
Owner-occupied: 95.5%
Vacant: 1.6%
Median year built: 1979
Median rooms: 8.1
Renters paying 30%+ of income: 69.8%
Renters paying 50%+ of income: 18.6%
Home value to income: 4.5× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

68%

Carpooled

Transit

Walked

0.5%

Bicycle

Worked from home

26%

Other

0.4%

Commute time (one way)

<10 min

10–19

18%

20–29

26%

30–44

27%

45–59

12%

60+

11%

Average commute

31.9 min

U.S. 26.4 min

Unemployment

8.6%

U.S. 5.2%

In labor force

61.6%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Management

22%

Sales

Office and admin

Healthcare

Arts, media and sports

Education

Business and finance

Transportation and moving

Engineering and science

Cleaning and personal care

Legal and social services

Food service

Production

Computer and math

Construction and repair

Police and fire

Farming, fishing and forestry

Industries

Professional and technical services

17%

Health care and social assistance

15%

Education

14%

Finance, insurance and real estate

12%

Manufacturing

Construction

Other services

Restaurants and hotels

Retail

Transportation, warehousing and utilities

Admin, support and management

Arts and recreation

Information

Wholesale

Public administration

0.4%

Agriculture and mining

Median earnings per worker

$81,820

U.S. $49,666

Self-employed

13.1%

U.S. 10%

Government workers

10.1%

U.S. 14.5%

Nonprofit workers

14.3%

U.S. 8.8%

Median earnings by type of work

Type of work	21111	U.S.
Management, business, science and arts	$102,656	$74,888
Service	$9,074	$26,804
Sales and office	$62,361	$40,476
Construction and maintenance	—	$49,199
Production and transportation	$20,859	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

11%

Some college

15%

Associate's

10%

Bachelor's

36%

Graduate

28%

High school graduate or higher: 99%
Bachelor's degree or higher: 63.7%
Graduate or professional degree: 27.9%
Households with broadband: 99.1%
Cable, fiber or DSL: 80.9%
No internet access: 0.9%
Without health insurance: 1.9%
Limited-English households: 0%

Geography

City (USPS): Monkton
State: Maryland
County: Baltimore County
Center point: 39.5755° N, 76.5897° W
Land area: 35 sq mi
Water area: 0.2 sq mi
Time zone: Eastern Time (UTC-5, UTC-4 in summer)
Zip type: Residential delivery area

21111 spans 2 counties

Baltimore County77% of land
Harford County23% of land

Zip codes near 21111

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
21131	Phoenix, MD	4.9 mi	7,141	$197,619	$686,000
21152	Sparks Glencoe, MD	5.3 mi	6,459	$121,350	$495,700
21161	White Hall, MD	6 mi	5,221	$108,094	$472,600
21120	Parkton, MD	6.7 mi	7,440	$162,052	$580,900
21065	Hunt Valley, MD · PO box	6.9 mi	—	—	—
21013	Baldwin, MD	6.9 mi	5,610	$171,354	$572,100
21031	Hunt Valley, MD	7.1 mi	26	—	—
21030	Cockeysville, MD	7.1 mi	25,827	$89,015	$450,700
21084	Jarrettsville, MD	7.1 mi	7,070	$121,509	$448,400
21092	Long Green, MD · PO box	7.9 mi	—	—	—
21047	Fallston, MD	8.7 mi	13,852	$157,500	$552,500
21023	Butler, MD	8.8 mi	66	$84,474	$881,600

Zip codes like 21111 elsewhere

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

Questions about 21111

What city is zip code 21111?

21111 is assigned to Monkton, Maryland. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 21111 in?

21111 is mostly in Baltimore County, but it extends into 1 other county.

What is the population of 21111?

About 4,714 people live in 21111, according to the Census Bureau's American Community Survey.

What time zone is 21111 in?

21111 is in Eastern Time.

What is the median household income in 21111?

The median household income in 21111 is $136,304.

What zip codes are near 21111?

The closest zip codes to 21111 are 21131, 21152, 21161, 21120, 21065.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 21111, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.