Ellicott City, MD ZIP codes
Ellicott City, Maryland has 3 ZIP codes, including 1 PO Box ZIP. They are in Howard County.
- Population in these ZIPs
- 91,852
- Avg. median income
- $167,900population-weighted
- Typical home value
- $707,000population-weighted
- Metro area
- Baltimore-Columbia-Towson, MD
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Ellicott City, MD ZIP codes list
| ZIP code | County | Population | Median income | Typical home value |
|---|---|---|---|---|
| 21041 PO Box | Howard County | — | — | — |
| 21042 | Howard County | 43,327 | $190,061 | $797,000 |
| 21043 | Howard County | 48,525 | $148,125 | $626,700 |
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 Ellicott City
- Columbia 5 mi
- Clarksville 5 mi
- West Friendship 5 mi
- Woodstock 6 mi
- Marriottsville 6 mi
- Dayton 7 mi
- Catonsville 7 mi
- Highland 7 mi
- Fulton 8 mi
- Windsor Mill 8 mi
- Elkridge 8 mi
- Glenelg 8 mi
Frequently asked questions
What is the ZIP code for Ellicott City, MD?
What county is Ellicott City, Maryland in?
Ellicott City ZIP codes are in Howard County.
Which Ellicott City ZIP codes are PO Boxes?
21041 is a PO Box or single-organization ZIP code; it has no residential delivery area.