21133 ZIP Code: Living in Randallstown, MD
Updated November 2026 · Data: U.S. Census Bureau, American Community Survey 2020–2024
ZIP code 21133 is in Baltimore County, Maryland, and covers Randallstown and Liberty Road corridor. West Baltimore County along Liberty Road, near Liberty Reservoir and Northwest Regional Park. About 31,398 people live in the 21133 ZIP code area.
21133 at a glance
Figures are Census estimates for ZIP Code Tabulation Area 21133, which closely follows the postal ZIP code. Estimates for smaller areas have wider margins of error.
What’s your 21133 home worth?
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Neighborhoods and communities in 21133
The 21133 ZIP code includes Randallstown and Liberty Road corridor. ZIP code lines don’t always match neighborhood or school boundaries, so confirm the details for any specific address.
Homes in 21133: what the housing looks like
Housing in 21133 is a mix led by single-family homes, along with apartments and condos. Most homes were built before 2000; about 14% date from 2000 or later. About 68% of occupied homes are lived in by their owners.
| Type of home | Share of homes in 21133 |
|---|---|
| Single-family detached | 53% |
| Townhomes and rowhomes (attached) | 20% |
| 2–4 unit buildings | 3% |
| Buildings with 5+ units (apartments, condos) | 25% |
Share of all housing units, ACS 2020–2024. 12,460 housing units in total.
Commuting from 21133
Workers living in 21133 average a 31.8-minute commute, and about 5% ride public transit. About 13.9% work from home. Here is how far the center of the 21133 ZIP code is from major job centers and travel hubs. These are straight-line distances; drive times depend on route and traffic.
| Destination | Distance |
|---|---|
| Downtown Baltimore | 12 miles |
| Washington, D.C. | 35 miles |
| BWI Airport | 16 miles |
| Annapolis | 33 miles |
| Fort Meade | 19 miles |
| Columbia Town Center | 12 miles |
| Towson | 11 miles |
Living in Baltimore County: what to know
Baltimore County has no incorporated cities, so communities such as this one are governed by the county. Property taxes, schools, police and trash service all run through Baltimore County government.
Public schools in 21133 are run by Baltimore County Public Schools. Assignments go by street address, not ZIP code, so use the district’s school locator for a specific home. To compare schools, see the Maryland State Department of Education Report Card.
For taxes, commuting and lifestyle across the county, read our Baltimore County relocation guide. For parks and trails, see Baltimore County parks.
ZIP codes near 21133
- 21163 – Woodstock
- 21244 – Windsor Mill
- 21117 – Owings Mills
- 21136 – Reisterstown
- 21208 – Pikesville
- 21104 – Marriottsville
Looking at homes in 21133?
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21133 ZIP code: frequently asked questions
What county is ZIP code 21133 in?
ZIP code 21133 is in Baltimore County, Maryland.
What neighborhoods are in the 21133 ZIP code?
The 21133 ZIP code includes Randallstown and Liberty Road corridor.
What is the median home value in 21133?
The median value of owner-occupied homes in 21133 is about $322,800, according to Census American Community Survey estimates for 2020–2024. Current asking prices can differ, so check active listings for today’s market.
How far is 21133 from Baltimore and Washington, D.C.?
The center of the 21133 ZIP code is about 12 miles from downtown Baltimore and 35 miles from Washington, D.C., in a straight line. Drive times vary with traffic.
Where can I see homes for sale in 21133?
You can see all current homes for sale in 21133 on GreatestMoves.com, our home search site, at https://www.greatestmoves.com/zip-codes/21133/.
Sources: U.S. Census Bureau, American Community Survey 5-year estimates 2020–2024 (tables DP03, DP04, DP05) for ZCTA 21133; U.S. Census Bureau TIGERweb ZCTA boundaries. Distances are calculated from the ZCTA’s internal point.