How much is a home worth in ZIP code 20657?

The typical home in 20657 is worth $377,043, based on the Zillow Home Value Index.

Are home values rising in 20657?

Home values in 20657 are up 2.5% over the past year, and up 4.5% a year over five years.

What is the typical rent in 20657?

A typical home in 20657 rents for about $2,175 a month, a gross rental yield of 6.9%.

What is the property tax rate in 20657?

The effective property tax rate in 20657 is 0.9% — roughly $3,426 a year on a typical home.

ZIP code 20657 has a population of 20,699 and a median household income of $115,748.

HousingHandbookReference data

…

U.S. ZIP Code · MD20657

Calvert County · Lexington Park, MD

Typical home value

$377,043^[1]

Zillow Home Value Index, as of April 2026

Appreciation

1-year: +2.5%
5-year / yr: +4.5%
10-year / yr: +5.1%

Relative price

vs U.S.: +32.7%
vs metro: -18.3%
vs state: -16.3%

Price history

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

The typical home in 20657 is worth $377,043 — 18.3% below the Lexington Park, MD median. Over the past year, values have risen 2.5%. Homes here rent for a typical $2,175 a month — a 6.9% gross rental yield. The effective property tax rate is 0.9%.

#Rent & investment

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

Monthly rent: $2,175^[2]
Gross yield: 6.9%^[2]
Cap rate: 4.2%^[2]

#Property tax

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

Effective tax rate: 0.9%^[3]
Typical annual tax: $3,426^[3]

#Climate risk

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

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

#Who lives here

Population: 20,699^[3]
Median household income: $115,748^[3]

#Migration

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

Net migration: -263^[5]
Moved in: 2,389
Moved out: 2,652

Schools

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

Public schools: 5
Elementary: 2
Middle: 2
High: 1

Patuxent High
High · Grades 9–12 · Calvert County Public Schools
1,008 students
Patuxent Appeal Elementary Campus
Elementary · Grades PK–5 · Calvert County Public Schools
659 students
Dowell Elementary
Elementary · Grades PK–5 · Calvert County Public Schools
589 students
Southern Middle
Middle · Grades 6–8 · Calvert County Public Schools
430 students
Mill Creek Middle
Middle · Grades 6–8 · Calvert County Public Schools
429 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 yield6.9%

Net yield (after ~40% expenses)4.2%

Annual rent$26,100

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$1,907

Loan principal$301,634

Down payment$75,409

Total interest paid$384,718

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 ratio1.15

Monthly cost to own$2,507

Monthly rent$2,175

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: 97th percentile^[1]
Rental yield: 83rd percentile^[2]
Property tax: 86th percentile^[3]

Frequently asked

How much is a home worth in ZIP code 20657?: The typical home in 20657 is worth $377,043, based on the Zillow Home Value Index.
Are home values rising in 20657?: Home values in 20657 are up 2.5% over the past year, and up 4.5% a year over five years.
What is the typical rent in 20657?: A typical home in 20657 rents for about $2,175 a month, a gross rental yield of 6.9%.
What is the property tax rate in 20657?: The effective property tax rate in 20657 is 0.9% — roughly $3,426 a year on a typical home.
Who lives in 20657?: ZIP code 20657 has a population of 20,699 and a median household income of $115,748.

#Comparable ZIPs

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

20621 vs 20657 →
MD
Typical home
$371,979
Gross yield
—
20634 vs 20657 →
California CDP, MD
Typical home
$369,194
Gross yield
7.0%
20653
Lexington Park CDP, MD
Typical home
$388,460
Gross yield
5.4%
20619
California CDP, MD
Typical home
$396,734
Gross yield
6.7%
20687
MD
Typical home
$356,637
Gross yield
—
20667
MD
Typical home
$400,472
Gross yield
—

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

Compare ZIPs

Pit ZIP 20657 against any other ZIP — full side-by-side table.

Compare 20657 →

#Jump to section

U.S. ZIP Code · MD20657

Get more data on ZIPs like this

Get more data on ZIPs like this