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ZIP Code · MD

ZIP 21157

Pop. 38,984·Carroll County·115th most expensive ZIP in Maryland
Median rent (all units)
$1,621/mo
Year-over-Year
-4.2%
Month-over-Month
-1.8%
vs US Median
-$344
Falling (Monthly)
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Most AffordableMost Expensive
ZIP 21157 · $1,621
More affordable than 65% of US ZIP codes · National median $1,965/mo
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Medians by bedroom

Rent by unit size

Studio
$1,270
1 BR
$1,450
2 BR
$1,770
3 BR
$2,280
4 BR+
$2,550
Research median
$1,770/mo

Bedroom estimates are gross rents that include essential utilities (electricity, water, gas, sewer, trash).

Rent trends

12-month history

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Last updated: July 20, 2026

Annual cost
$19,452/yr
At $1,621/mo median
Location
StateMD
CountyCarroll County
Rent Market Meter
Strong Renter's Market
Renter's MarketBalancedLandlord's Market
Rents are down 4.2% year-over-year. Push hard on price, concessions, and lease terms.
Based on rent-price momentum (-4.2% YoY, -1.8% MoM), not inventory.
Demographics

Who lives here

ZIP 21157 (Westminster, MD) is majority owner-occupied, has a median income above the national average, 37.9% of residents hold a bachelor's degree or higher.

Population
38,984
Median income
$104,966
Median age
43.2
Renters
23.2%
Age distribution
19.2%
21.1%
26.6%
13.5%
19.5%
Under 1819.2%
18–3421.1%
35–5426.6%
55–6413.5%
65+19.5%
Gender
48.1%
51.9%
Male48.1%
Female51.9%
Race & ethnicity
85.5%
White85.5%
Black3.9%
Hispanic6.5%
Asian1.3%
Other2.7%
Education (25+)
29.1%
26.8%
37.9%
No HS diploma6.2%
HS diploma29.1%
Some college26.8%
Bachelor's+37.9%
Housing tenure
76.8%
23.2%
Owner76.8%
Renter23.2%

Source: U.S. Census Bureau · ACS 2024 5-Year Estimates

2021 vs 2026

How ZIP 21157 in Westminster, MD has changed in 5 years

Income
$92,846 → $104,966
up 13.1%
Population
39,978 → 38,984
down 2.5%
Renter share
24.9% → 23.2%
-1.7 pts
Bachelor's+
36.5% → 37.9%
+1.4 pts
Median age
41 → 43.2
+2.2 yrs

Household income in the area moved from $92,846 to $104,966 across the same window, up 13.1% versus 2021. Headcount in the area went from 39,978 to 38,984 between 2021 and 2024, a 2.5% change. About 23.2% of households rent today, against 24.9% in 2021.

Community

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Local insights

Tips for renters in ZIP 21157

About renting in ZIP 21157

Last updated: July 20, 2026

ZIP code 21157 covers Westminster, MD. The median rent here is $1,621/mo as of July 2026. A 1-bedroom rents for a median of $1,450/mo. A 2-bedroom rents for a median of $1,770/mo.

At 19% of local median household income ($104,966/yr), ZIP 21157 ranks as affordable compared to the national benchmark of 30%. Rents have decreased 4.2% over the past year.

FAQ

Frequently asked questions

How much is rent in ZIP code 21157?

As of July 20, 2026, the median monthly rent in ZIP 21157 (Westminster, MD) is $1,621. This is based on aggregated data from public sources and community submissions.

How does ZIP 21157 rent compare to the US average?

ZIP 21157's median rent of $1,621/mo is $344 (18%) below the US national median of $1,965/mo.

How does ZIP 21157 compare to other ZIPs in Maryland?

ZIP 21157 is among the more affordable ZIP codes in Maryland, ranking #115 out of 140 ZIPs at $1,621/mo.

How much income do you need to rent in ZIP 21157?

To keep rent at or below 30% of gross income, you would need to earn at least $65,000/year (~$31/hour full-time) to afford the median rent of $1,621/mo in ZIP 21157. The local median household income is $104,966/yr, meaning the typical household meets that threshold.

Is rent going up or down in ZIP 21157?

Rent in ZIP 21157 has decreased 4.2% over the past year as of July 20, 2026, offering some relief compared to 12 months ago.

Is ZIP 21157 an affordable place to rent?

ZIP 21157 is considered very affordable for renters. At $1,621/mo, rent takes approximately 19% of the local median household income ($104,966/yr). The standard benchmark is 30%. ZIP 21157 falls comfortably within that range.

What percentage of ZIP 21157 residents rent vs. own?

According to Census data, approximately 23.2% of ZIP 21157 households are renters, while 76.8% are owner-occupied. ZIP 21157 leans toward homeownership, which can mean a smaller rental inventory.

How does ZIP 21157 compare to the rest of Westminster?

ZIP 21157 is more affordable than Westminster overall. At $1,621/mo, it's $44 below the Westminster citywide median of $1,665/mo.

When was rent data for ZIP 21157 last updated?

Rent data for ZIP 21157 reflects July 20, 2026. RentDataNow refreshes all data monthly using public and private datasets.
Income Affordability
19%
VERY AFFORDABLE

At $1,621/mo, rent takes ~19% of ZIP 21157's median household income ($104,966/yr). The standard benchmark is 30%.

ZIP 21157 19%Benchmark 30%
State income tax2–5.75%
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Schools nearby

Public schools near ZIP 21157 (Westminster, MD)

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