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Dundalk, MD ZIP code

The ZIP code for Dundalk, Maryland is 21222. It is in Baltimore County.

Population in these ZIPs
59,407
Avg. median income
$64,100population-weighted
Typical home value
$222,200population-weighted
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ZIP codes within 10 miles

Dundalk, MD ZIP code list

Dundalk, MD ZIP codes
ZIP codePopulationMedian incomeTypical home value
2122259,407$64,141$222,200

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

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Frequently asked questions

What is the ZIP code for Dundalk, MD?

The ZIP code for Dundalk, MD is 21222.

What county is Dundalk, Maryland in?

Dundalk ZIP codes are in Baltimore County.