HousingHandbookReference data

U.S. ZIP Code · MD21237

Baltimore County · Baltimore-Columbia-Towson, MD

Typical home value

$318,645[1]

Zillow Home Value Index, as of April 2026

Appreciation

1-year
+0.7%
5-year / yr
+3.8%
10-year / yr
+4.5%

Relative price

vs U.S.
+12.2%
vs metro
-34.7%
vs state
-29.3%
ZIP 21237 location in MD
Location of ZIP 21237 in MD

Price history

Zillow Home Value Index — monthly, smoothed and seasonally adjusted.

The typical home in 21237 is worth $318,645 — 34.7% below the Baltimore-Columbia-Towson, MD median. Over the past year, values have risen 0.7%. Homes here rent for a typical $1,780 a month — a 6.7% gross rental yield. The effective property tax rate is 1.2%.

#Rent & investment

Typical asking rent, and the returns it implies at the current home value.

Monthly rent
$1,780[2]
Gross yield
6.7%[2]
Cap rate
4.0%[2]

#Property tax

Effective rate — total real estate taxes paid relative to total home value.

Effective tax rate
1.2%[3]
Typical annual tax
$3,666[3]

#Climate risk

FEMA National Risk Index ratings for Baltimore County. "Not Applicable" means the hazard does not threaten the county.

Overall risk
Relatively Moderate[4]
Riverine flood
Relatively High
Coastal flood
Relatively Moderate
Wildfire
Very Low
Drought
Relatively Moderate
Heat wave
Relatively High
Hurricane
Relatively Moderate
Tornado
Relatively Moderate
Earthquake
Relatively Moderate
Winter weather
Very High

#Who lives here

Population
31,425[3]
Median household income
$91,693[3]

#Migration

Household moves in and out of Baltimore County over a year, from IRS tax-return data.

Net migration
-2,556[5]
Moved in
22,058
Moved out
24,614

Schools

Open public schools in this ZIP, from the NCES Common Core of Data.

Public schools
5
Elementary
3
Middle
1
High
1
  • Golden Ring Middle

    Middle · Grades 6–8 · Baltimore County Public Schools

    805 students

  • Rossville Elementary

    Elementary · Grades PK–5 · Baltimore County Public Schools

    702 students

  • Red House Run Elementary

    Elementary · Grades PK–5 · Baltimore County Public Schools

    596 students

  • Shady Spring Elementary

    Elementary · Grades PK–5 · Baltimore County Public Schools

    392 students

  • Rosedale Center

    High · Grades 9–12 · Baltimore County Public Schools

    58 students

Run the numbers

Interactive calculators pre-filled with this ZIP's typical home value, rent, and property-tax rate. Edit any field to recompute.

Gross yield6.7%
Net yield (after ~40% expenses)4.0%
Annual rent$21,357

Gross and net yield are estimates based on the inputs and the selected expense ratio. Actual income and expenses will vary by property and market. Not investment advice.

Monthly payment$1,611
Loan principal$254,916
Down payment$63,729
Total interest paid$325,131

Estimated monthly payments include principal and interest only. Actual costs will include property tax, insurance, possibly PMI, and HOA fees not modeled here. Loan terms shown are estimates; consult a licensed lender for current rates and qualification.

Own : rent ratio1.23
Monthly cost to own$2,182
Monthly rent$1,780

Renting is meaningfully cheaper month-to-month.

This calculator projects multi-year scenarios based on assumptions about appreciation, rent growth, and investment returns — none of which are guaranteed. Actual outcomes depend on variables this tool cannot know. Not financial or real estate advice.

#Metro ranking

Where this ZIP sits among others in its metro area.

Appreciation
48th percentile[1]
Rental yield
66th percentile[2]
Property tax
85th percentile[3]

Frequently asked

How much is a home worth in ZIP code 21237?
The typical home in 21237 is worth $318,645, based on the Zillow Home Value Index.
Are home values rising in 21237?
Home values in 21237 are up 0.7% over the past year, and up 3.8% a year over five years.
What is the typical rent in 21237?
A typical home in 21237 rents for about $1,780 a month, a gross rental yield of 6.7%.
What is the property tax rate in 21237?
The effective property tax rate in 21237 is 1.2% — roughly $3,666 a year on a typical home.
Who lives in 21237?
ZIP code 21237 has a population of 31,425 and a median household income of $91,693.

#Comparable ZIPs

Same metro, nearest typical home value. Each card shows the comparable ZIP's headline numbers so you can scan at a glance.

  • Baltimore, MD

    Typical home
    $316,497
    Gross yield
    5.4%
  • Crumpton CDP, MD

    Typical home
    $322,538
    Gross yield
  • Milford Mill CDP, MD

    Typical home
    $323,139
    Gross yield
    5.8%
  • Marydel, MD

    Typical home
    $313,857
    Gross yield
  • Arbutus CDP, MD

    Typical home
    $308,874
    Gross yield
    6.3%
  • Carney CDP, MD

    Typical home
    $304,866
    Gross yield
    6.7%

Want similar ZIPs from outside this metro? Browse nationally similar ZIPs →

Compare ZIPs

Pit ZIP 21237 against any other ZIP — full side-by-side table.

Compare 21237

#Jump to section