Randallstown, MD ZIP code
The ZIP code for Randallstown, Maryland is 21133. It is in Baltimore County.
- Population in these ZIPs
- 31,398
- Avg. median income
- $80,500population-weighted
- Typical home value
- $361,700population-weighted
- Metro area
- Baltimore-Columbia-Towson, MD
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Randallstown, MD ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 21133 | 31,398 | $80,480 | $361,700 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Randallstown
- Woodstock 3 mi
- Windsor Mill 4 mi
- Owings Mills 4 mi
- Reisterstown 5 mi
- Pikesville 5 mi
- Marriottsville 6 mi
- Gwynn Oak 6 mi
- Stevenson 7 mi
- Glyndon 7 mi
- Catonsville 8 mi
- Sykesville 9 mi
- Ellicott City 9 mi
Frequently asked questions
What is the ZIP code for Randallstown, MD?
The ZIP code for Randallstown, MD is 21133.
What county is Randallstown, Maryland in?
Randallstown ZIP codes are in Baltimore County.