Residential delivery area · Maryland
ZIP Code 21209: Baltimore, MD
ZIP code 21209 uses the postal name Baltimore, Maryland and lies mostly in Baltimore County (56% of its land) with the rest in Baltimore city (Census 2020 ZIP-county file). About 30,000 people live there (Census Bureau, ACS 2020-2024), the 9th most populous of Baltimore's 25 residential ZIP codes. Median household income is $91,437 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Baltimore (44%), Pikesville (40%) and Towson (16%).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Baltimore · 25 residential ZIPs
- County
- Baltimore County (56%); Baltimore city (44%)
- Census places
- Baltimore (44%); Pikesville (40%) census-designated place; Towson (16%) census-designated place
- Neighborhoods
- Cold Spring, Sabina-Mattfeldt GeoNames
- Metro area
- Baltimore-Columbia-Towson, MD
- House districts
- MD-2 (76%), MD-7 (24%) 119th Congress, by share of land
- State
- Maryland
- Time zone
- Eastern
- Land area
- 6.5 sq mi · 4,665 people per sq mi
- PO Box ZIPs
- 17 more ZIP codes use the name Baltimore for PO boxes or single organizations
Where is ZIP code 21209?
21209 centers on 39.375°, -76.663° and covers 6.5 square miles of land plus 0.0 of water. It borders 5 ZIP codes: 21210, 21215, 21204, 21208, 21211.
The map draws ZIP code areas only. For the streets inside 21209, 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 21209 compare with the rest of Baltimore?
| Measure | 21209 | In Baltimore | In Baltimore County | In MD |
|---|---|---|---|---|
| People (ACS 2020-2024) | 30,126 | 9th of 25 | 22nd of 57 | 84th of 477 |
| Median household income | $91k | 4th of 20 | 26th of 42 | 191st of 293 |
| Median home value | $441k | 2nd of 19 | 19th of 45 | 149th of 320 |
Its median household income is higher than in 75% 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 21209?
The 2020 Census counted 28,659 people in 21209; the ACS, which samples households over 2020-2024, estimates 30,126. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 30,126
- 2020 Census count
- 28,659
- Households
- 11,621
- Median age
- 35.6
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 21209?
Of the 30,126 people the ACS estimates in 21209, 29.8% are under 18 and 18.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (67.2%), then Black (not Hispanic) (20.4%).
- Under 1829.8%
- 18 to 6452.1%
- 65 and older18.0%
- White, not Hispanic67.2%
- Black, not Hispanic20.4%
- Hispanic or Latino5.2%
- Asian, not Hispanic4.8%
- Other or two or more2.4%
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 21209 earn?
Median household income is $91,437 (ACS 2020-2024), the 26th highest of the 42 ranked ZIP codes in Baltimore County.
- Median household income
- $91,437
- Income per person
- $53,449
- Below the poverty line
- 6.7%
- Unemployed (of the labor force)
- 5.7%
- Adults 25+ with a bachelor's degree
- 60.7%
- Adjusted gross income per tax return, 2022
- $155,91412,490 returns; wages 49% 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 21209?
FHFA's house price index for 21209, built from repeat sales and appraisals of the same homes, rose 64% from 2015 to 2025 and rose 40% from 2020 to 2025, and moved +2.1% in 2025.
- Median home value (owners' estimate)
- $440,800
- Median gross rent
- $1,655
- Homes owned by their occupants
- 57.5%
- Housing units
- 12,071
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 21209?
777 business establishments had a location in this ZIP code in 2023, 79 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services153
- Health care and social assistance144
- Real estate and rental and leasing74
- Retail trade67
- Other services (except public administration)63
- Finance and insurance61
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 21209?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 21210 | Baltimore | 14,134 | $112k | 1.9 mi |
| 21215 | Baltimore | 52,229 | $52k | 2.3 mi |
| 21204 | Towson | 19,845 | $100k | 2.9 mi |
| 21208 | Pikesville | 37,276 | $90k | 3.3 mi |
| 21211 | Baltimore | 14,969 | $83k | 3.4 mi |
| 21285 | Towson | 3 | – | 2.6 mi (near) |
| 21212 | Baltimore | 33,974 | $97k | 2.6 mi (near) |
| 21252 | Towson | 4,865 | – | 3.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.