Glenelg ZIP Codes — Howard County, MD

There is one unique ZIP code in Glenelg, Maryland and it is 21737. Area code: 443/410/667.
1
ZIP codes
5.12
sq mi land
0.05
sq mi water
443/410/667
area code
Glenelg, MD ZIP code map

About Glenelg, MD

Glenelg, MD, is a charming and peaceful community located in Howard County, Maryland. Known for its rural atmosphere and scenic landscapes, it offers residents a tranquil lifestyle away from the hustle and bustle of city life. With a strong sense of community and a commitment to preserving its natural beauty, Glenelg is a hidden gem in central Maryland.

Location & geography

Glenelg is situated in the central region of Maryland, approximately 20 miles southwest of Baltimore and about 25 miles north of Washington, D.C. The city encompasses a total land area of 5.12 square miles, with a negligible water area of 0.05 square miles. The terrain is characterized by rolling hills and lush greenery, making it an attractive location for those who enjoy outdoor activities.

Community & economy

The character of Glenelg is deeply rooted in its strong community values, where neighbors often come together for local events and activities. The area is primarily residential, with a focus on agriculture and local businesses that support the community's needs. Daily life in Glenelg includes enjoying open spaces, participating in community events, and accessing quality education and recreational facilities.

Transportation

Transportation in Glenelg is primarily reliant on a network of local roads and highways, including Maryland Route 97, which provides convenient access to surrounding areas. The nearest major airports are Baltimore/Washington International Airport, located about 25 miles away, and Washington Dulles International Airport, which is approximately 40 miles away. Public transit options are limited, making personal vehicles the most common mode of transportation.

History

Glenelg was founded in the late 19th century and has maintained much of its rural charm since then. Historically, the area was known for farming and agriculture, which continues to influence its landscape today. A notable event in the community's history was the establishment of local preservation efforts to maintain its scenic rural character amid urban development.

Did you know?

One surprising fact about Glenelg is that it is home to several well-preserved historic buildings, reflecting its rich heritage. Additionally, despite its small size, it draws visitors for its rural beauty and the ease of access to nearby metropolitan areas.

ZIP codes for Glenelg, MD (1)
ZIP code City County Map
21737 Glenelg Howard View map

Demographics & statistics

2,406
Population
38.5
Median age
$250,001
Median household income
$95,925
Per capita income
$962,200
Median home value
$0
Median monthly rent
98.3%
Home ownership
4.0%
Poverty rate
1.3%
Unemployment
698
Housing units
73.2%
Bachelor's or higher

Age distribution

Male Female
98
Under 5
96
75
5–9
75
63
10–14
63
111
15–19
109
90
20–24
89
115
25–34
113
141
35–44
139
165
45–54
163
131
55–59
129
88
60–64
87
45
65–74
45
61
75–84
60
28
85+
27
← Male
Female →

Age summary

GroupCount%
Under 1863326.3%
18 and over1,77373.7%
65 and over26611.1%
Median age38.5 years

Race & ethnicity

White 76.5%
Asian 13.3%
Black or African American 5.8%
Two or more races 4.4%
GroupCount%
White1,84076.5%
Asian31913.3%
Black or African American1405.8%
Two or more races1074.4%

Household income

$10k–$15k 0.8%
$25k–$35k 0.7%
$35k–$50k 1.3%
$50k–$75k 3.1%
$75k–$100k 2.4%
$100k–$150k 11.1%
$150k–$200k 15.2%
$200k+ 65.4%
Range% of households
$10k–$15k0.8%
$25k–$35k0.7%
$35k–$50k1.3%
$50k–$75k3.1%
$75k–$100k2.4%
$100k–$150k11.1%
$150k–$200k15.2%
$200k+65.4%
Median income$250,001

Housing

Home values

$50k–$100k 2.6%
$300k–$500k 8.0%
$500k–$1M 42.7%
$1M+ 46.7%

Housing overview

MetricValue
Median home value$962,200
Median rent / month$0
Owner occupied98.3%
Renter occupied1.7%
Vacant0.0%
Single-family detached99.3%
Large apartment buildings0.0%
Mobile homes0.0%
Median rooms10.0
Avg household size (owned)3.39

Year built

Era%
2020 or later0.0%
2010–201943.7%
2000–20095.8%
1990–199912.0%
1980–198915.1%
1970–197911.1%
1960–19699.2%
1950–19590.0%
1940–19490.8%
1939 or earlier2.4%

Bedrooms

Size% of units
No bedroom (studio)0.0%
1 bedroom0.0%
2 bedrooms0.0%
3 bedrooms12.1%
4 bedrooms30.1%
5+ bedrooms57.7%

Vehicles per household

Vehicles% of households
No vehicle4.1%
1 vehicle8.0%
2 vehicles45.6%
3 or more42.3%

Heating fuel

Fuel type%
Utility gas2.8%
Electricity51.1%
Propane / LP gas27.2%
Fuel oil15.8%
Wood1.3%

Households & families

Household typeCount%
Married-couple family61586.6%
Cohabiting couple415.8%
Male householder, no spouse314.4%
Female householder, no spouse233.2%
Households with children under 1832345.5%
Households with seniors (65+)17925.2%
Average household size3.38

Marital status

StatusMaleFemale
Never married28.2%28.5%
Married64.4%61.7%
Separated0.0%0.0%
Widowed3.2%0.0%
Divorced4.2%9.8%

Education

Less than 9th grade 0.0%
Some HS, no diploma 0.0%
HS graduate 13.3%
Some college, no degree 9.8%
Associate's degree 3.8%
Bachelor's degree 28.3%
Graduate / professional 44.9%
Metric%
HS diploma or higher100.0%
Bachelor's or higher73.2%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool13417.9%
Kindergarten415.5%
Elementary school22730.4%
High school18925.3%
College / grad school15620.9%

Employment

Industry of employment

Education & healthcare 25.4%
Professional & management 18.4%
Finance & real estate 13.0%
Retail trade 8.9%
Public administration 7.1%
Construction 6.7%
Manufacturing 5.9%
Agriculture & mining 5.6%
Arts, food & hospitality 5.0%
Other services 2.4%
Transportation & utilities 1.4%

Occupation

Category%
Management, business & arts61.9%
Service14.9%
Sales & office12.6%
Natural resources & construction7.7%
Production & transportation2.9%

Employment type

Type%
Private sector73.6%
Government19.4%
Self-employed7.1%
Unpaid family workers0.0%

Commute

Method%
Drive alone69.5%
Carpool6.7%
Public transit0.5%
Walk0.7%
Other means0.0%
Avg commute (minutes)29.4

Poverty

All people 4.0%
Under 18 years 0.0%
18 and over 5.5%
Married-couple families 0.0%
Female-led households 26.1%

Income support

Source% of households
Social Security20.0%
Retirement income21.3%
Supplemental Security7.3%
Cash public assistance0.8%
Food stamps / SNAP0.8%

Health indicators

Condition%
High blood pressure29.2%
High cholesterol34.6%
Heart disease4.4%
Stroke1.9%
Asthma8.1%
Arthritis20.1%
Kidney disease2.1%
Pulmonary disease3.8%
Cancer6.4%
Behavior / access%
Binge drinking13.1%
No physical activity14.9%
Less than 7 hrs sleep29.8%
Fair or poor health7.3%
Poor mental health10.8%
Poor physical health6.1%
No health insurance6.1%
Visited doctor (checkup)75.7%
Visited dentist77.2%
Cholesterol screening94.6%
Teeth loss5.4%

Veterans & disability

VeteransCount%
Civilian veterans1468.2%
Disability%
Any disability4.4%
Under 180.0%
18–64 years1.7%
65 and over30.1%

Health insurance coverage

Type%
Private insurance95.0%
Public insurance13.9%
Uninsured under 190.0%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only2,21291.9%
Spanish180.8%
Other Indo-European00.0%
Asian & Pacific Islander00.0%
Other languages180.8%

Place of birth & citizenship

OriginCount%
Native born (US)2,10487.4%
Born in same state2,07986.4%
Born in different state1,43759.7%
Foreign born251.0%
Naturalized citizen30212.6%
Not a US citizen28594.4%

Ancestry

AncestryCount%
Italian69328.8%
French32913.7%
Arab632.6%
AncestryCount%
Polish421.7%
English210.9%
German100.4%

Technology access

Metric% of households
Computer access29.5%
Internet access98.5%

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

Frequently asked questions
What ZIP codes does Glenelg, MD have?
Glenelg, MD has one ZIP code: 21737. Each ZIP code serves a distinct delivery area within the city and surrounding region.
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