Monkton ZIP Codes — Baltimore County, MD

There is one unique ZIP code in Monkton, Maryland and it is 21111. Area code: 443/410.

ZIP codes

35.35

sq mi land

0.20

sq mi water

443/410

area code

Monkton, MD ZIP code map

About Monkton, MD

Monkton is a charming unincorporated community located in Maryland, specifically within Baltimore County. This serene area is characterized by its picturesque landscapes and a strong sense of community. With its rural atmosphere, Monkton offers residents and visitors a welcome respite from the hustle and bustle of nearby urban centers.

Location & geography

Monkton is strategically situated approximately 20 miles north of Baltimore, making it accessible yet secluded. The community encompasses a land area of 35.35 square miles, with a small water area of 0.20 square miles that adds to its natural beauty. Surrounded by rolling hills and lush countryside, the terrain offers a variety of outdoor recreational opportunities.

Community & economy

The character of Monkton is defined by its quaint rural charm and close-knit community spirit, where residents often engage in local events and activities. The primary industries in the area include agriculture, equestrian services, and small businesses that cater to the local population. Daily life in Monkton is marked by a slower pace, allowing families and individuals to enjoy the tranquility of nature while still having access to essential services.

Transportation

Monkton is primarily accessible via several local roads and is near Interstate 83, which connects it to larger cities and commerce in the region. The nearest major airport is Baltimore/Washington International Thurgood Marshall Airport, located about 30 miles to the south. Public transportation options are limited in this rural area, making personal vehicles the most common mode of transit.

History

Monkton, MD, has a rich history that dates back to earlier settlements in the region, with agriculture playing a prominent role in its development. The community has traditionally been known for its equestrian culture, which is reflected in the many farms and stables dotting the landscape. Over the years, Monkton has maintained its rural character, making it a beloved location for those seeking a peaceful lifestyle.

Did you know?

One surprising fact about Monkton is that it is home to some of Maryland's oldest churches, reflecting the area's deep historical roots. Additionally, the community is known for its scenic trails and parks, offering ample opportunities for hiking and enjoying nature.

ZIP codes for Monkton, MD (1)

ZIP code	City	County	Map
21111	Monkton	Baltimore	View map

Demographics & statistics

4,838

Population

49.5

Median age

$140,966

Median household income

$68,488

Per capita income

$573,600

Median home value

Median monthly rent

95.9%

Home ownership

6.9%

Poverty rate

7.5%

Unemployment

1,839

Housing units

61.5%

Bachelor's or higher

Age distribution

Male Female

145

Under 5

130

156

5–9

140

196

10–14

176

120

15–19

107

20–24

114

25–34

102

329

35–44

296

276

45–54

248

264

55–59

238

284

60–64

256

395

65–74

356

165

75–84

149

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,142	23.6%
18 and over	3,696	76.4%
65 and over	1,163	24.0%
Median age	49.5 years

Race & ethnicity

White 93.8%

Two or more races 2.8%

Hispanic or Latino 2.3%

Black or African American 0.8%

Other race 0.3%

Group	Count	%
White	4,644	93.8%
Two or more races	137	2.8%
Hispanic or Latino	112	2.3%
Black or African American	41	0.8%
Other race	14	0.3%

Household income

$10k–$15k 1.6%

$15k–$25k 1.9%

$25k–$35k 6.1%

$35k–$50k 4.0%

$50k–$75k 8.7%

$75k–$100k 17.7%

$100k–$150k 11.8%

$150k–$200k 11.8%

$200k+ 36.3%

Range	% of households
$10k–$15k	1.6%
$15k–$25k	1.9%
$25k–$35k	6.1%
$35k–$50k	4.0%
$50k–$75k	8.7%
$75k–$100k	17.7%
$100k–$150k	11.8%
$150k–$200k	11.8%
$200k+	36.3%
Median income	$140,966

Housing

Home values

Under $50k 0.9%

$50k–$100k 0.8%

$100k–$150k 0.7%

$150k–$200k 0.7%

$200k–$300k 2.9%

$300k–$500k 34.0%

$500k–$1M 51.9%

$1M+ 8.1%

Housing overview

Metric	Value
Median home value	$573,600
Median rent / month	$0
Owner occupied	95.9%
Renter occupied	4.1%
Vacant	3.1%
Single-family detached	96.1%
Large apartment buildings	0.6%
Mobile homes	0.0%
Median rooms	10.0
Avg household size (owned)	2.64

Year built

Era	%
2020 or later	0.0%
2010–2019	2.3%
2000–2009	11.7%
1990–1999	20.5%
1980–1989	19.6%
1970–1979	17.7%
1960–1969	9.1%
1950–1959	3.1%
1940–1949	2.3%
1939 or earlier	13.6%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.0%
2 bedrooms	12.4%
3 bedrooms	35.3%
4 bedrooms	36.4%
5+ bedrooms	15.8%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	13.7%
2 vehicles	37.3%
3 or more	48.9%

Heating fuel

Fuel type	%
Utility gas	2.4%
Electricity	41.2%
Propane / LP gas	14.3%
Fuel oil	36.9%
Wood	2.3%
Solar	0.8%
No fuel used	0.8%

Households & families

Household type	Count	%
Married-couple family	1,187	63.9%
Cohabiting couple	118	6.4%
Male householder, no spouse	257	13.8%
Female householder, no spouse	295	15.9%
Households with children under 18	609	32.8%
Households with seniors (65+)	806	43.4%
Average household size	2.61

Marital status

Status	Male	Female
Never married	17.7%	12.6%
Married	61.6%	66.6%
Separated	1.1%	2.6%
Widowed	6.2%	5.8%
Divorced	13.4%	12.3%

Education

Less than 9th grade 0.4%

Some HS, no diploma 3.3%

HS graduate 10.7%

Some college, no degree 16.9%

Associate's degree 7.2%

Bachelor's degree 31.3%

Graduate / professional 30.1%

Metric	%
HS diploma or higher	96.3%
Bachelor's or higher	61.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	24	2.5%
Kindergarten	49	5.2%
Elementary school	574	60.6%
High school	207	21.9%
College / grad school	93	9.8%

Employment

Industry of employment

Professional & management 21.6%

Education & healthcare 17.2%

Construction 13.3%

Manufacturing 9.2%

Retail trade 7.7%

Finance & real estate 7.6%

Arts, food & hospitality 6.5%

Public administration 5.7%

Other services 4.5%

Transportation & utilities 3.8%

Information 1.3%

Wholesale trade 1.2%

Agriculture & mining 0.6%

Occupation

Category	%
Management, business & arts	66.1%
Service	7.5%
Sales & office	15.6%
Natural resources & construction	6.8%
Production & transportation	4.0%

Employment type

Type	%
Private sector	83.3%
Government	12.2%
Self-employed	4.5%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	76.2%
Carpool	3.7%
Public transit	0.0%
Walk	1.5%
Other means	0.3%
Avg commute (minutes)	33.8

Poverty

All people 6.9%

Under 18 years 9.2%

18 and over 6.2%

Married-couple families 4.6%

Female-led households 22.8%

Income support

Source	% of households
Social Security	43.1%
Retirement income	37.3%
Supplemental Security	0.0%
Cash public assistance	0.0%
Food stamps / SNAP	1.2%

Health indicators

Condition	%
High blood pressure	33.1%
High cholesterol	36.0%
Heart disease	5.4%
Stroke	2.3%
Asthma	8.9%
Arthritis	25.3%
Kidney disease	2.5%
Pulmonary disease	4.8%
Cancer	8.0%

Behavior / access	%
Binge drinking	15.3%
No physical activity	16.5%
Less than 7 hrs sleep	28.3%
Fair or poor health	9.1%
Poor mental health	11.9%
Poor physical health	7.1%
No health insurance	6.5%
Visited doctor (checkup)	77.6%
Visited dentist	75.0%
Cholesterol screening	95.1%
Teeth loss	6.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	231	6.3%

Disability	%
Any disability	8.9%
Under 18	4.1%
18–64 years	9.4%
65 and over	12.7%

Health insurance coverage

Type	%
Private insurance	88.3%
Public insurance	31.4%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	4,563	94.3%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	4,686	96.9%
Born in same state	4,660	96.3%
Born in different state	3,157	65.3%
Foreign born	26	0.5%
Naturalized citizen	152	3.1%
Not a US citizen	132	86.8%

Ancestry

Ancestry	Count	%
French	869	18%
Italian	838	17.3%
Arab	473	9.8%
English	231	4.8%

Ancestry	Count	%
Polish	38	0.8%
Norwegian	21	0.4%
Irish	6	0.1%

Technology access

Metric	% of households
Computer access	38.4%
Internet access	98.2%

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

Frequently asked questions

What ZIP codes does Monkton, MD have?

Monkton, MD has one ZIP code: 21111. Each ZIP code serves a distinct delivery area within the city and surrounding region.