PlainZIP

Gwynn Oak, MD · standard

ZIP Code 21207

Baltimore County, Maryland - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

48,133
1,802/sq mi
$67,060
Median income
$260,300
Median home value
29.3%
Bachelor's or higher

The verdict

Gwynn Oak pairs a below-median household income with above-median home values, in a low-density, homeowner-dominated area.

42th pct
household income, US ZIPs
Top 40%
home value, US ZIPs
1,802
people per sq mi
61%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 21207 against every reporting US ZIP.

ZIP code 21207 is a densely settled ZIP (a standard USPS delivery area) in Gwynn Oak, Baltimore County, Maryland, with 48,133 residents across 26.7 square miles, a density of 1,802 people per square mile, in the New York time zone.

ZIP 21207 reports a modest median household income of $67,060 (41% below the Maryland average), while per-capita income is $35,387. The poverty rate stands at 13.5% and the unemployment rate at 6.6%. Housing costs here run $260,300 for a typical home value (42% below the state average), with rent averaging $1,432 a month; 60.7% of homes are owner-occupied.

Educational attainment sits below the national norm: 29.3% of adults hold a bachelor's degree or higher, the median age is 39.5, and the average commute is 30 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Baltimore County, so you can benchmark 21207 against its immediate geography rather than a national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 21207

Top 5 sectors by establishment count in Gwynn Oak, MD

Which industries have the most business establishments in ZIP 21207.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 21207, Gwynn Oak, MD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

48,133

Population

26.7

Area (sq mi)

1,802

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 21207?

39.5

Median Age

46.2%

Male

53.8%

Female

13.9%

Foreign-Born

White 8.3%
African American 77.4%
Asian 3.0%
American Indian or Alaska Native 0.3%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 6.1%
Hispanic or Latino 9.5%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$67,060

Median Household Income

-41% vs state

$35,387

Per Capita Income

13.5%

Poverty Rate

6.6%

Unemployment Rate

29.7 min

Mean Commute Time

How ZIP 21207 ranks nationally

Gwynn Oak, MD household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$67,060 42nd percentile higher than 42% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 59.6%
Bachelor's Degree or Higher 29.3%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

20,199

Total Housing Units

18,976

Occupied Units

1,223

Vacant Units

2.46

Avg Household Size

Occupancy Type

Owner 60.7%
Renter 39.3%

$260,300

Median Home Value

-42% vs state

$1,432

Median Rent

1961

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+8.3%

YoY Change (2024)

293

HPI Index (2000 = 100)

+193%

Total Change Since 2000

Home values in ZIP 21207 have increased 8.3% over the past year (2024). Since 2000, this ZIP has seen +193% cumulative appreciation.

Year Annual Change HPI Index
2020 +4.9% 203
2021 +12.2% 228
2022 +11.2% 254
2023 +6.6% 271
2024 +8.3% 293

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 498 business establishments in ZIP 21207, employing approximately 6,909 people with a combined annual payroll of $334,088,000.

498

Businesses

6,909

Employees

$334.1M

Annual Payroll

16

Industry Sectors

Industry Establishments % of Total
Health care and social assistance 76 15.3%
Retail trade 70 14.1%
Other services (except public administration) 66 13.3%
Accommodation and food services 60 12.1%
Professional, scientific, and technical services 46 9.2%
Administrative and support and waste management and remediation services 38 7.6%
Construction 37 7.4%
Real estate and rental and leasing 29 5.8%
Transportation and warehousing 21 4.2%
Finance and insurance 15 3.0%
Wholesale trade 13 2.6%
Arts, entertainment, and recreation 7 1.4%
Educational services 6 1.2%
Manufacturing 5 1.0%
Information 5 1.0%
Management of companies and enterprises 3 0.6%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 21207 vs 21215 →

ZIP 21207 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 21207 ranks #2 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 21207 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 21207 ranks #6 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
21215 Baltimore, MD 60,161 2.5 mi
21216 Baltimore, MD 32,071 2.7 mi
21208 Pikesville, MD 33,917 4.2 mi
21229 Baltimore, MD 45,213 3.1 mi
21244 Windsor Mill, MD 34,611 3.3 mi
21250 Baltimore, MD 3,205 4.8 mi
21228 Catonsville, MD 47,577 3.8 mi
21211 Baltimore, MD 17,351 4.3 mi
21217 Baltimore, MD 37,111 4.5 mi
21209 Baltimore, MD 26,465 4.4 mi

More ZIP Codes in Baltimore County

21234 standard
Parkville, MD
Pop: 69,752
21222 standard
Dundalk, MD
Pop: 55,786
21117 standard
Owings Mills, MD
Pop: 53,778
21228 standard
Catonsville, MD
Pop: 47,577
21221 standard
Essex, MD
Pop: 42,154
21220 standard
Middle River, MD
Pop: 39,199

Related Areas

Baltimore County Gwynn Oak, MD Maryland

Frequently Asked Questions

What county is ZIP code 21207 in? ▼
ZIP code 21207 (Gwynn Oak) is located in Baltimore County, Maryland. Baltimore County contains multiple ZIP codes, see the full list at /counties/baltimore-md-24005.
What is the population of ZIP code 21207? ▼
ZIP code 21207 in Gwynn Oak, MD has a population of 48,133 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 21207? ▼
The median household income in ZIP 21207 is $67,060, which is 12% below the national average of $76,288.
What is the average home value in ZIP 21207? ▼
The median home value in ZIP 21207 is $260,300, which is 6% below the national average of $278,155.
What is the demographic makeup of ZIP 21207? ▼
The largest racial group in ZIP 21207 is African American at 77.4%. Hispanic or Latino residents make up 9.5% of the population.
How many businesses are in ZIP code 21207? ▼
ZIP code 21207 has 498 business establishments employing approximately 6,909 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 21207? ▼
The top industries by establishment count in ZIP 21207 are: Health care and social assistance (76), Retail trade (70), Other services (except public administration) (66). There are 16 industry sectors represented in total.
How have home values changed in ZIP code 21207? ▼
According to the FHFA House Price Index, home values in ZIP 21207 increased by 8.3% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 193%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 21207? ▼
In ZIP code 21207, 59.6% of residents aged 25+ have a high school diploma or higher, and 29.3% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 21207? ▼
The mean commute time for workers in ZIP code 21207 is 29.7 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 21207? ▼
In ZIP code 21207, approximately 60.7% of occupied housing units are owner-occupied and 39.3% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 21207? ▼
The poverty rate in ZIP code 21207 is 13.5% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.