How much is a home worth in ZIP code 21045?

The typical home in 21045 is worth $488,910, based on the Zillow Home Value Index.

Are home values rising in 21045?

Home values in 21045 are down 0.2% over the past year, and up 4.0% a year over five years.

What is the typical rent in 21045?

A typical home in 21045 rents for about $2,123 a month, a gross rental yield of 5.2%.

What is the property tax rate in 21045?

The effective property tax rate in 21045 is 1.2% — roughly $5,738 a year on a typical home.

ZIP code 21045 has a population of 40,034 and a median household income of $118,563.

HousingHandbookReference data

…

U.S. ZIP Code · MD21045

Howard County · Baltimore-Columbia-Towson, MD

Typical home value

$488,910^[1]

Zillow Home Value Index, as of April 2026

Appreciation

1-year: -0.2%
5-year / yr: +4.0%
10-year / yr: +4.0%

Relative price

vs U.S.: +72.1%
vs metro: ≈ metro median
vs state: +8.5%

Price history

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

The typical home in 21045 is worth $488,910. Over the past year, values have fallen 0.2%. Homes here rent for a typical $2,123 a month — a 5.2% 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: $2,123^[2]
Gross yield: 5.2%^[2]
Cap rate: 3.1%^[2]

#Property tax

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

Effective tax rate: 1.2%^[3]
Typical annual tax: $5,738^[3]

#Climate risk

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

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

#Who lives here

Population: 40,034^[3]
Median household income: $118,563^[3]

#Migration

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

Net migration: -1,203^[5]
Moved in: 11,543
Moved out: 12,746

Schools

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

Public schools: 11
Elementary: 7
Middle: 2
High: 2

Long Reach High
High · Grades 9–12 · Howard County Public Schools
1,448 students
Oakland Mills High
High · Grades 9–12 · Howard County Public Schools
1,422 students
Phelps Luck Elementary
Elementary · Grades PK–5 · Howard County Public Schools
704 students
Waterloo Elementary
Elementary · Grades PK–5 · Howard County Public Schools
626 students
Lake Elkhorn Middle
Middle · Grades 6–8 · Howard County Public Schools
622 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.

Home value$Monthly rent$

Gross yield5.2%

Net yield (after ~40% expenses)3.1%

Annual rent$25,473

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.

Home price$Down payment%Interest rate%Loan termyears

Monthly payment$2,472

Loan principal$391,128

Down payment$97,782

Total interest paid$498,862

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.

Home price$Monthly rent$Down payment%Mortgage rate%Property tax rate% / yrMaintenance% / yrRule of thumb: 1% of home value per year.

Own : rent ratio1.58

Monthly cost to own$3,356

Monthly rent$2,123

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: 59th percentile^[1]
Rental yield: 34th percentile^[2]
Property tax: 87th percentile^[3]

Frequently asked

How much is a home worth in ZIP code 21045?: The typical home in 21045 is worth $488,910, based on the Zillow Home Value Index.
Are home values rising in 21045?: Home values in 21045 are down 0.2% over the past year, and up 4.0% a year over five years.
What is the typical rent in 21045?: A typical home in 21045 rents for about $2,123 a month, a gross rental yield of 5.2%.
What is the property tax rate in 21045?: The effective property tax rate in 21045 is 1.2% — roughly $5,738 a year on a typical home.
Who lives in 21045?: ZIP code 21045 has a population of 40,034 and a median household income of $118,563.

#Comparable ZIPs

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

21776 vs 21045 →
New Windsor, MD
Typical home
$486,473
Gross yield
—
21210 vs 21045 →
Baltimore, MD
Typical home
$486,398
Gross yield
4.1%
21015
Bel Air South CDP, MD
Typical home
$485,686
Gross yield
5.6%
21075
Elkridge CDP, MD
Typical home
$492,656
Gross yield
5.7%
20763
Savage CDP, MD
Typical home
$495,458
Gross yield
—
20794
Jessup CDP, MD
Typical home
$497,526
Gross yield
5.7%

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Pit ZIP 21045 against any other ZIP — full side-by-side table.

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#Jump to section

U.S. ZIP Code · MD21045

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