Gwynn Oak ZIP Codes — Baltimore County, MD

There is one unique ZIP code in Gwynn Oak, Maryland and it is 21207. Area code: 410/443/667.

ZIP codes

10.35

sq mi land

0.04

sq mi water

410/443/667

area code

Gwynn Oak, MD ZIP code map

About Gwynn Oak, MD

Gwynn Oak, MD, is a charming community located in Baltimore County, Maryland. Nestled just outside the vibrant city of Baltimore, Gwynn Oak offers residents a suburban atmosphere with easy access to urban amenities. The area is characterized by its family-friendly environment and a rich tapestry of cultures, providing a welcoming space for diverse communities.

Location & geography

Gwynn Oak is located approximately 6 miles northwest of downtown Baltimore, making it an ideal spot for those who work in the city but prefer a quieter living environment. The city spans a land area of 31.04 square miles, with a minor water area of 0.11 square miles. The terrain is primarily flat, contributing to its appeal for families and those seeking a leisurely lifestyle.

Community & economy

The character of Gwynn Oak is defined by its strong sense of community and engagement among residents. Local industries include retail, healthcare, and small businesses that contribute to the area's economy. Daily life in Gwynn Oak is marked by community events, parks, and local shops, creating a vibrant atmosphere for all ages.

Transportation

Gwynn Oak is conveniently accessible via several highways, including I-70 and I-695, which connect residents to Baltimore and surrounding areas. The nearest major airport is Baltimore/Washington International Thurgood Marshall Airport, located about 12 miles away. Public transportation options are available, offering bus services that connect to the broader transit network.

History

Gwynn Oak was established as a distinct community in the late 19th century, originally known for its amusement park that attracted visitors from across the region. Over the years, it has transitioned from a recreational haven to a residential suburb, primarily influenced by the growth of Baltimore. Notable events in its history include the development of local schools and parks, which have shaped the community's identity.

Did you know?

One surprising fact about Gwynn Oak is that it was once home to the Gwynn Oak Amusement Park, which operated for nearly 70 years and was a popular destination for families. Today, the city retains a nostalgic charm while embracing modern community living, making it a unique blend of history and contemporary life.

ZIP codes for Gwynn Oak, MD (1)

ZIP code	City	County	Map
21207	Gwynn Oak	Baltimore	View map

Demographics & statistics

51,765

Population

37.8

Median age

$59,822

Median household income

$31,664

Per capita income

$238,700

Median home value

$1,343

Median monthly rent

60.2%

Home ownership

15.2%

Poverty rate

7.3%

Unemployment

13,069

Housing units

28.5%

Bachelor's or higher

Age distribution

Male Female

1,659

Under 5

1,866

1,424

5–9

1,601

1,577

10–14

1,773

1,574

15–19

1,771

1,588

20–24

1,787

3,366

25–34

3,786

2,882

35–44

3,242

2,987

45–54

3,360

1,596

55–59

1,795

1,729

60–64

1,944

2,235

65–74

2,515

1,311

75–84

1,475

434

85+

488

← Male

Female →

Age summary

Group	Count	%
Under 18	11,747	22.7%
18 and over	40,018	77.3%
65 and over	8,458	16.3%
Median age	37.8 years

Race & ethnicity

Black or African American 75.2%

White 9.4%

Hispanic or Latino 5.3%

Other race 4%

Two or more races 3.6%

Asian 2.2%

Native Hawaiian / Pacific Islander 0.2%

American Indian / Alaska Native 0.2%

Group	Count	%
Black or African American	41,088	75.2%
White	5,127	9.4%
Hispanic or Latino	2,886	5.3%
Other race	2,168	4%
Two or more races	1,957	3.6%
Asian	1,187	2.2%
Native Hawaiian / Pacific Islander	134	0.2%
American Indian / Alaska Native	104	0.2%

Household income

Under $10k 6.2%

$10k–$15k 2.7%

$15k–$25k 7.3%

$25k–$35k 7.8%

$35k–$50k 15.1%

$50k–$75k 20.4%

$75k–$100k 11.7%

$100k–$150k 15.5%

$150k–$200k 7.7%

$200k+ 5.6%

Range	% of households
Under $10k	6.2%
$10k–$15k	2.7%
$15k–$25k	7.3%
$25k–$35k	7.8%
$35k–$50k	15.1%
$50k–$75k	20.4%
$75k–$100k	11.7%
$100k–$150k	15.5%
$150k–$200k	7.7%
$200k+	5.6%
Median income	$59,822

Housing

Home values

Under $50k 2.8%

$50k–$100k 1.4%

$100k–$150k 7.4%

$150k–$200k 16.6%

$200k–$300k 50.2%

$300k–$500k 18.7%

$500k–$1M 2.3%

$1M+ 0.7%

Housing overview

Metric	Value
Median home value	$238,700
Median rent / month	$1,343
Owner occupied	60.2%
Renter occupied	39.8%
Vacant	6.6%
Single-family detached	50.9%
Large apartment buildings	6.6%
Mobile homes	0.0%
Median rooms	6.2
Avg household size (owned)	2.87

Year built

Era	%
2020 or later	0.1%
2010–2019	0.7%
2000–2009	3.6%
1990–1999	5.1%
1980–1989	10.9%
1970–1979	7.9%
1960–1969	18.8%
1950–1959	30.5%
1940–1949	8.3%
1939 or earlier	14.1%

Bedrooms

Size	% of units
No bedroom (studio)	2.6%
1 bedroom	12.2%
2 bedrooms	22.3%
3 bedrooms	43.2%
4 bedrooms	14.2%
5+ bedrooms	5.5%

Vehicles per household

Vehicles	% of households
No vehicle	10.0%
1 vehicle	41.8%
2 vehicles	27.8%
3 or more	20.4%

Heating fuel

Fuel type	%
Utility gas	55.2%
Electricity	34.3%
Propane / LP gas	3.1%
Fuel oil	5.2%
Solar	0.4%
No fuel used	1.2%

Households & families

Household type	Count	%
Married-couple family	6,135	31.6%
Cohabiting couple	999	5.1%
Male householder, no spouse	4,263	21.9%
Female householder, no spouse	8,040	41.4%
Households with children under 18	5,960	30.7%
Households with seniors (65+)	6,343	32.6%
Average household size	2.64

Marital status

Status	Male	Female
Never married	45.8%	42.2%
Married	36.9%	30.4%
Separated	3.9%	3.6%
Widowed	3.2%	9.8%
Divorced	10.2%	14.0%

Education

Less than 9th grade 2.8%

Some HS, no diploma 7.8%

HS graduate 28.4%

Some college, no degree 23.8%

Associate's degree 8.7%

Bachelor's degree 16.5%

Graduate / professional 12.0%

Metric	%
HS diploma or higher	89.4%
Bachelor's or higher	28.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	604	4.6%
Kindergarten	759	5.8%
Elementary school	4,738	36.1%
High school	2,383	18.1%
College / grad school	4,647	35.4%

Employment

Industry of employment

Education & healthcare 27.1%

Public administration 13.2%

Retail trade 11.5%

Professional & management 9.4%

Arts, food & hospitality 7.0%

Other services 6.4%

Transportation & utilities 6.1%

Construction 5.9%

Finance & real estate 5.9%

Manufacturing 4.2%

Wholesale trade 1.6%

Information 1.1%

Agriculture & mining 0.5%

Occupation

Category	%
Management, business & arts	36.0%
Service	23.0%
Sales & office	20.3%
Natural resources & construction	6.7%
Production & transportation	13.9%

Employment type

Type	%
Private sector	67.4%
Government	27.7%
Self-employed	4.7%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	73.0%
Carpool	8.4%
Public transit	8.1%
Walk	1.2%
Other means	1.6%
Avg commute (minutes)	30.8

Poverty

All people 15.2%

Under 18 years 24.3%

18 and over 12.6%

Married-couple families 8.1%

Female-led households 14.0%

Income support

Source	% of households
Social Security	29.9%
Retirement income	27.1%
Supplemental Security	6.0%
Cash public assistance	4.9%
Food stamps / SNAP	20.3%

Health indicators

Condition	%
High blood pressure	43.3%
High cholesterol	31.2%
Heart disease	5.7%
Stroke	4.0%
Asthma	11.8%
Arthritis	26.4%
Kidney disease	3.4%
Pulmonary disease	5.7%
Cancer	6.0%

Behavior / access	%
Binge drinking	12.7%
No physical activity	27.1%
Less than 7 hrs sleep	40.5%
Fair or poor health	17.3%
Poor mental health	15.3%
Poor physical health	9.7%
No health insurance	12.9%
Visited doctor (checkup)	82.1%
Visited dentist	57.8%
Cholesterol screening	93.4%
Teeth loss	14.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	2,382	6.0%

Disability	%
Any disability	15.4%
Under 18	7.1%
18–64 years	13.9%
65 and over	33.3%

Health insurance coverage

Type	%
Private insurance	58.5%
Public insurance	45.6%
Uninsured under 19	13.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	48,240	93.2%
Spanish	3,239	6.7%
Other Indo-European	1,043	2.2%
Asian & Pacific Islander	494	1.0%
Other languages	556	1.2%

Place of birth & citizenship

Origin	Count	%
Native born (US)	45,068	87.1%
Born in same state	44,347	85.7%
Born in different state	34,777	67.2%
Foreign born	721	1.4%
Naturalized citizen	6,697	12.9%
Not a US citizen	2,915	43.5%

Ancestry

Ancestry	Count	%
Arab	1,546	3%
Italian	1,353	2.6%
French	771	1.5%
Polish	119	0.2%

Ancestry	Count	%
English	114	0.2%
German	47	0.1%
Norwegian	47	0.1%
Irish	2	0%

Technology access

Metric	% of households
Computer access	37.5%
Internet access	94.2%

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

Frequently asked questions

What ZIP codes does Gwynn Oak, MD have?

Gwynn Oak, MD has one ZIP code: 21207. Each ZIP code serves a distinct delivery area within the city and surrounding region.