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Westminster, MD ZIP codes

Westminster, Maryland has 2 ZIP codes. They are in Carroll County.

Population in these ZIPs
61,067
Avg. median income
$106,700population-weighted
Typical home value
$463,000population-weighted
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ZIP codes within 10 miles

Westminster, MD ZIP codes list

Westminster, MD ZIP codes
ZIP codeCountyPopulationMedian incomeTypical home value
21157Carroll County38,984$104,966$460,900
21158Carroll County22,083$109,827$466,600

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

Cities near Westminster

Frequently asked questions

What is the ZIP code for Westminster, MD?

Westminster, MD has 2 ZIP codes: 21157 and 21158.

What county is Westminster, Maryland in?

Westminster ZIP codes are in Carroll County.