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ZIP code 21158: Westminster, MD

21158 is a ZIP code in Westminster, Maryland, mainly in Carroll County, part of the Baltimore-Columbia-Towson, MD metro area. About 22,083 people live here.

Population
22,083
Median household income
$109,827
Typical home value
$466,600+1% in 12 months
Median rent
$1,794gross, per month
Median age
41.6
Homeowners
79.2%of occupied homes
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Shaded: ZIP code 21158's area. Click anywhere on the map to see which ZIP code it's in.

ZIP codes within 10 milesWithin 25 miles

ZIP code 21158 details

CityWestminster
StateMaryland
CountyCarroll County
Metro areaBaltimore-Columbia-Towson, MD
Time zoneEastern Time (UTC−5), observes daylight saving time
TypeStandard (delivery area)
Land area73.3 sq mi, plus 0.2 sq mi of water
Population density301 people per sq mi
Bachelor's degree or higher36.1% of adults 25+
Average commute36.4 minutes
Center coordinates39.65372, -77.03513

Median rent in 21158 by bedrooms

SizeMedian gross rent
1 bedroom$2,039/mo
2 bedrooms$1,766/mo
3 bedrooms$1,643/mo
4 bedrooms$2,686/mo

Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.

ZIP codes near 21158

ZIP codeCityDistancePopulation
21787Taneytown, MD7.5 mi11,645
21157Westminster, MD7.8 mi38,984
17340Littlestown, PA8.2 mi11,405
17331Hanover, PA9.9 mi56,443
21776New Windsor, MD10.0 mi6,261
21102Manchester, MD10.3 mi12,162
17344Mc Sherrystown, PA10.5 mi3,719
17332Hanover, PA10.5 mi—

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

Buying a home in 21158?

A typical home in ZIP code 21158 is worth about $466,600 (Zillow Home Value Index). The median household here earns $109,827 a year. See what buying here would cost per month, with Maryland average taxes and insurance filled in.

Monthly payment for a $466,600 homeWhat can a $109,827 income afford?Rental property numbers

About ZIP code 21158

What city is ZIP code 21158?

ZIP code 21158 is in Westminster, MD, in Carroll County.

What county is ZIP code 21158 in?

21158 is mainly in Carroll County, Maryland.

What is the population of ZIP code 21158?

About 22,083 people live in ZIP code 21158, according to the American Community Survey 2020–2024 5-year estimates.

What time zone is ZIP code 21158 in?

21158 is in Eastern Time (UTC−5). It observes daylight saving time.

What other ZIP codes does Westminster have?

Westminster, MD also uses 21157.