Residential delivery area · Maryland
ZIP Code 21207: Gwynn Oak, MD
ZIP code 21207 uses the postal name Gwynn Oak, Maryland and lies mostly in Baltimore County (72% of its land) with the rest in Baltimore city (Census 2020 ZIP-county file). About 47,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $67,060 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Lochearn (39%), Woodlawn (33%) and Baltimore (28%).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Gwynn Oak · its only residential ZIP
- County
- Baltimore County (72%); Baltimore city (28%)
- Census places
- Lochearn (39%) census-designated place; Woodlawn (33%) census-designated place; Baltimore (28%)
- Neighborhoods
- Dorchester, Forest Park Golf Course, Franklintown, Grove Park, Purnell GeoNames
- Metro area
- Baltimore-Columbia-Towson, MD
- House district
- MD-7 119th Congress
- State
- Maryland
- Time zone
- Eastern
- Land area
- 10.3 sq mi · 4,553 people per sq mi
Where is ZIP code 21207?
21207 centers on 39.324°, -76.719° and covers 10.3 square miles of land plus 0.0 of water. It borders 6 ZIP codes: 21215, 21216, 21229, 21244, 21228, 21208.
The map draws ZIP code areas only. For the streets inside 21207, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 21207 compare with the rest of Baltimore County?
| Measure | 21207 | In Baltimore County | In MD |
|---|---|---|---|
| People (ACS 2020-2024) | 47,099 | 9th of 57 | 25th of 477 |
| Median household income | $67k | 37th of 42 | 262nd of 293 |
| Median home value | $260k | 40th of 45 | 279th of 320 |
Its median household income is higher than in 42% of U.S. residential ZIP codes, and it is denser than 93% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 21207?
The 2020 Census counted 46,595 people in 21207; the ACS, which samples households over 2020-2024, estimates 47,099. Between the 2010 and 2020 censuses its population fell 3.2% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 47,099
- 2020 Census count
- 46,595−3.2% since 2010 (48,133)
- Households
- 18,976
- Median age
- 39.5
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 21207?
Of the 47,099 people the ACS estimates in 21207, 22.3% are under 18 and 18.7% are 65 or older. The largest group by race and Hispanic origin is Black (not Hispanic) (76.3%).
- Under 1822.3%
- 18 to 6459.0%
- 65 and older18.7%
- Black, not Hispanic76.3%
- Hispanic or Latino9.5%
- White, not Hispanic7.9%
- Other or two or more3.4%
- Asian, not Hispanic3.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 21207 earn?
Median household income is $67,060 (ACS 2020-2024), the 37th highest of the 42 ranked ZIP codes in Baltimore County. It is not measurably different from 2015-2019 ($70,426 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $67,060
- Income per person
- $35,387
- Below the poverty line
- 13.5%
- Unemployed (of the labor force)
- 6.6%
- Adults 25+ with a bachelor's degree
- 29.3%
- Adjusted gross income per tax return, 2022
- $52,80523,120 returns; wages 79% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 21207?
FHFA's house price index for 21207, built from repeat sales and appraisals of the same homes, rose 80% from 2015 to 2025 and rose 46% from 2020 to 2025, and moved +1.1% in 2025.
- Median home value (owners' estimate)
- $260,300
- Median gross rent
- $1,432
- Homes owned by their occupants
- 60.7%
- Housing units
- 20,199
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 21207?
498 business establishments had a location in this ZIP code in 2023, 18 more than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance76
- Retail trade70
- Other services (except public administration)66
- Accommodation and food services60
- Professional, scientific, and technical services46
- Administrative and support and waste management and remediation services38
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 21207?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 21215 | Baltimore | 52,229 | $52k | 2.5 mi |
| 21216 | Baltimore | 29,426 | $42k | 2.7 mi |
| 21229 | Baltimore | 46,679 | $60k | 3.1 mi |
| 21244 | Windsor Mill | 38,208 | $85k | 3.1 mi |
| 21228 | Catonsville | 50,492 | $113k | 3.9 mi |
| 21208 | Pikesville | 37,276 | $90k | 4.1 mi |
| 21211 | Baltimore | 14,969 | $83k | 4.3 mi (near) |
| 21217 | Baltimore | 30,792 | $38k | 4.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.