Residential delivery area · Maryland
ZIP Code 21163: Woodstock, MD
ZIP code 21163 uses the postal name Woodstock, Maryland and lies mostly in Baltimore County (73% of its land) with the rest in Howard County (Census 2020 ZIP-county file). About 7,500 people live there (Census Bureau, ACS 2020-2024). Median household income is $134,672 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Randallstown (9%) and Ellicott City (8%); 83% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Woodstock · its only residential ZIP
- County
- Baltimore County (73%); Howard County (27%)
- Census places
- Randallstown (9%) census-designated place; Ellicott City (8%) census-designated place
- Metro area
- Baltimore-Columbia-Towson, MD
- House districts
- MD-2 (73%), MD-3 (27%) 119th Congress, by share of land
- State
- Maryland
- Time zone
- Eastern
- Land area
- 13.6 sq mi · 553 people per sq mi
Where is ZIP code 21163?
21163 centers on 39.338°, -76.848° and covers 13.6 square miles of land plus 0.2 of water. It borders 4 ZIP codes: 21133, 21104, 21244, 21042.
The map draws ZIP code areas only. For the streets inside 21163, 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).
How does 21163 compare with the rest of Baltimore County?
| Measure | 21163 | In Baltimore County | In MD |
|---|---|---|---|
| People (ACS 2020-2024) | 7,539 | 33rd of 57 | 202nd of 477 |
| Median household income | $135k | 7th of 42 | 87th of 293 |
| Median home value | $603k | 6th of 45 | 52nd of 320 |
Its median household income is higher than in 94% of U.S. residential ZIP codes, and it is denser than 73% 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 21163?
The 2020 Census counted 7,657 people in 21163; the ACS, which samples households over 2020-2024, estimates 7,539. Between the 2010 and 2020 censuses its population grew 9.0% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 7,539
- 2020 Census count
- 7,657+9.0% since 2010 (7,026)
- Households
- 2,680
- Median age
- 45.4
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 21163?
Of the 7,539 people the ACS estimates in 21163, 21.5% are under 18 and 18.4% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (45.0%), then Asian (not Hispanic) (28.2%).
- Under 1821.5%
- 18 to 6460.1%
- 65 and older18.4%
- White, not Hispanic45.0%
- Asian, not Hispanic28.2%
- Black, not Hispanic23.7%
- Other or two or more2.2%
- Hispanic or Latino0.8%
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 21163 earn?
Median household income is $134,672 (ACS 2020-2024), the 7th highest of the 42 ranked ZIP codes in Baltimore County. It is not measurably different from 2015-2019 ($155,674 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $134,672±$23,995
- Income per person
- $81,758
- Below the poverty line
- 7.6%
- Unemployed (of the labor force)
- 3.7%
- Adults 25+ with a bachelor's degree
- 63.3%
- Adjusted gross income per tax return, 2022
- $137,9873,620 returns; wages 71% 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 21163?
FHFA's house price index for 21163, built from repeat sales and appraisals of the same homes, rose 47% from 2015 to 2025 and rose 30% from 2020 to 2025, and moved −3.4% in 2025.
- Median home value (owners' estimate)
- $602,800
- Median gross rent
- $1,438
- Homes owned by their occupants
- 85.0%
- Housing units
- 2,816
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 21163?
139 business establishments had a location in this ZIP code in 2023, 3 fewer than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services51
- Health care and social assistance17
- Administrative and support and waste management and remediation services10
- Retail trade9
- Wholesale trade8
- Finance and insurance8
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 21163?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 21133 | Randallstown | 31,398 | $81k | 3.4 mi |
| 21104 | Marriottsville | 6,052 | $192k | 3.5 mi |
| 21244 | Windsor Mill | 38,208 | $85k | 3.8 mi |
| 21042 | Ellicott City | 43,327 | $190k | 4.9 mi |
| 21043 | Ellicott City | 48,525 | $148k | 6.2 mi (near) |
| 21794 | West Friendship | 2,192 | $232k | 6.9 mi (near) |
| 21207 | Gwynn Oak | 47,099 | $67k | 6.9 mi (near) |
| 21228 | Catonsville | 50,492 | $113k | 7.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.