21207 ZIP Code — Gwynn Oak, MD
Baltimore County, Maryland
ZIP code 21207 is located in Gwynn Oak, Maryland, within Baltimore County. It covers approximately 10.35 square miles and serves a population of 51,765 residents. This is a po box ZIP code in the Eastern (ET) timezone, served by area code 410/443/667.
About ZIP code 21207
The housing stock consists of a mix of housing types. Most homes were built in the 1950s, giving the area an established character. Median home value is $238,700. Owner-occupancy sits near the national average at 60%.
Median household income is $59,822. SNAP benefit usage at 20% of households reflects economic stress in the area.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 31 minutes is near the national average.
Educational attainment is near the national average, with 29% of residents holding a bachelor's degree or higher.
51,765
population
10.35
sq mi land
PO Box
ZIP type
Eastern (ET)
timezone
21207 ZIP code map
Cities in ZIP code 21207
Below are the cities the US Postal Service accepts for ZIP code 21207. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Gwynn Oak | Acceptable |
| Gwynn Oak | Acceptable |
| Gwynn Oak | Preferred |
Nearby ZIP codes
21235 Baltimore (1.3 mi)
21215 Baltimore (2 mi)
21216 Baltimore (2.4 mi)
21229 Baltimore (3.2 mi)
21209 Baltimore (3.8 mi)
21244 Windsor Mill (3.8 mi)
21208 Pikesville (4 mi)
21211 Baltimore (4.1 mi)
21228 Catonsville (4.3 mi)
21217 Baltimore (4.3 mi)
21223 Baltimore (4.5 mi)
21210 Baltimore (4.8 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 51,765 |
| Population density | 5,001 / sq mi |
| State FIPS | 24 |
| County FIPS | 005 |
| Geography | |
|---|---|
| Land area | 10.35 sq mi |
| Water area | 0.04 sq mi |
| Latitude | 39.3248 |
| Longitude | -76.7150 |
| Timezone | Eastern (ET) |
| Area code | 410/443/667 |
Total population by age
Gender
Race & ethnicity
Economics
updated 05/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 43.1% | 31.4% | 28.2% |
| $50k – $100k | 33.6% | 30.7% | 28.2% |
| $100k – $200k | 20.6% | 28.5% | 30.1% |
| Over $200k | 2.7% | 9.5% | 13.4% |
Demographics & statistics
51,765
Population
5,001
People per sq mi
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
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 43.1% | 31.4% | 28.2% |
| $50k – $100k | 33.6% | 30.7% | 28.2% |
| $100k – $200k | 20.6% | 28.5% | 30.1% |
| Over $200k | 2.7% | 9.5% | 13.4% |
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% |
| Work from home | 7.7% |
| 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 | % |
|---|---|
| Obesity | 39.4% |
| High blood pressure | 43.3% |
| High cholesterol | 31.2% |
| Diabetes | 13.9% |
| 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 | % |
|---|---|
| Smoking | 16.7% |
| Binge drinking | 12.7% |
| No physical activity | 27.1% |
| Less than 7 hrs sleep | 40.5% |
| Depression | 17.2% |
| 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% |
| No insurance | 9.7% |
| 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 about ZIP code 21207
What part of Gwynn Oak is ZIP code 21207?
ZIP code 21207 covers a portion of Gwynn Oak, Maryland, within Baltimore County.
What county is ZIP code 21207 in?
ZIP code 21207 falls within Baltimore County, Maryland.
What is the poverty rate in ZIP code 21207?
15% of residents in ZIP code 21207 live below the poverty line, above the national average.
What is the population of ZIP code 21207?
ZIP code 21207 has an estimated population of 51,765 residents, with a density of 5,004 people per square mile.
What is the median household income in ZIP code 21207?
The median household income in ZIP code 21207 is $59,822, below the national median of ~$75,000.
What is the typical home value in ZIP code 21207?
The median home value in ZIP code 21207 is $238,700.
What timezone is ZIP code 21207 in?
ZIP code 21207 observes the EST timezone.