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Zip Code 21158 — Westminster, MD

21158 is a ZIP Code associated with Westminster, MD, located within Carroll. The postal region supports an estimated population of 22,083 residents across Data Pending housing units, with a population density of 116.3 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.646600, -77.032170)

Data Metric	Local Statistic
Postal / Zip Code	21158
Primary City	Westminster
State / Province	MD
County	Carroll
Total Population	22,083
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	116.3 people/sq mi
Timezone	America/New_York

How 21158 Compares

Metric	ZIP 21158	Carroll County	MD State Average
Population	22,083	158,322	6,205,597
Median Income	Data Pending	N/A	N/A
Population Density	116.3 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 21157	Westminster	7.3 mi	38,984	N/A
Zip 21787	Taneytown	7.7 mi	11,645	N/A
Zip 21776	New Windsor	9.6 mi	6,261	N/A
Zip 21074	Hampstead	10.2 mi	14,777	N/A
Zip 21102	Manchester	10.3 mi	12,162	N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →