Catonsville, MD ZIP code
The ZIP code for Catonsville, Maryland is 21228. It is in Baltimore County.
- Population in these ZIPs
- 50,492
- Avg. median income
- $112,700population-weighted
- Typical home value
- $424,900population-weighted
- Metro area
- Baltimore-Columbia-Towson, MD
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Catonsville, MD ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 21228 | 50,492 | $112,656 | $424,900 |
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 Catonsville
- Gwynn Oak 4 mi
- Halethorpe 4 mi
- Windsor Mill 5 mi
- Elkridge 5 mi
- Linthicum Heights 6 mi
- Woodstock 7 mi
- Baltimore 7 mi
- Ellicott City 7 mi
- Hanover 7 mi
- Pikesville 7 mi
- Columbia 8 mi
- Brooklyn 8 mi
Frequently asked questions
What is the ZIP code for Catonsville, MD?
The ZIP code for Catonsville, MD is 21228.
What county is Catonsville, Maryland in?
Catonsville ZIP codes are in Baltimore County.