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Secretary, MD ZIP code

The ZIP code for Secretary, Maryland is 21664. It is in Dorchester County.

Population in these ZIPs
635
Avg. median income
$82,700population-weighted
Typical home value
$236,600population-weighted
Metro area
Cambridge, MD
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ZIP codes within 10 miles

Secretary, MD ZIP code list

Secretary, MD ZIP codes
ZIP codePopulationMedian incomeTypical home value
21664635$82,721$236,600

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 Secretary, MD?

The ZIP code for Secretary, MD is 21664.

What county is Secretary, Maryland in?

Secretary ZIP codes are in Dorchester County.