HousingHandbookReference data

U.S. ZIP Code · MO63121

St. Louis County · St. Louis, MO-IL

Typical home value

$89,620[1]

Zillow Home Value Index, as of April 2026

Appreciation

1-year
-2.2%
5-year / yr
+5.0%
10-year / yr
+7.7%

Relative price

vs U.S.
-68.5%
vs metro
-64.2%
vs state
-62.7%
ZIP 63121 location in MO
Location of ZIP 63121 in MO

Price history

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

The typical home in 63121 is worth $89,620 — 64.2% below the St. Louis, MO-IL median. Over the past year, values have fallen 2.2%. Homes here rent for a typical $1,175 a month — a 15.7% gross rental yield. The effective property tax rate is 1.6%.

#Rent & investment

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

Monthly rent
$1,175[2]
Gross yield
15.7%[2]
Cap rate
9.4%[2]

#Property tax

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

Effective tax rate
1.6%[3]
Typical annual tax
$1,466[3]

#Climate risk

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

Overall risk
Relatively High[4]
Riverine flood
Relatively High
Coastal flood
Not Applicable
Wildfire
Very Low
Drought
Very Low
Heat wave
Very High
Hurricane
Very Low
Tornado
Relatively High
Earthquake
Relatively High
Winter weather
Very High

#Who lives here

Population
25,008[3]
Median household income
$42,701[3]

#Migration

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

Net migration
-2,450[5]
Moved in
23,075
Moved out
25,525

Schools

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

Public schools
6
Elementary
5
Middle
0
High
1
  • NORMANDY EARLY LEARNING CENTER

    Elementary · Grades PK–K · NORMANDY SCHOOLS COLLABORATIVE

    382 students

  • JEFFERSON ELEM.

    Elementary · Grades 1–8 · NORMANDY SCHOOLS COLLABORATIVE

    323 students

  • BARACK OBAMA ELEMENTARY SCHOOL

    Elementary · Grades 1–8 · NORMANDY SCHOOLS COLLABORATIVE

    316 students

  • BEL-NOR

    Elementary · Grades 1–5 · NORMANDY SCHOOLS COLLABORATIVE

    269 students

  • BERMUDA ELEMENTARY

    Elementary · Grades PK–2 · FERGUSON-FLORISSANT R-II

    175 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 yield15.7%
Net yield (after ~40% expenses)9.4%
Annual rent$14,099

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$453
Loan principal$71,696
Down payment$17,924
Total interest paid$91,445

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 ratio0.55
Monthly cost to own$650
Monthly rent$1,175

Owning 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
55th percentile[1]
Rental yield
93rd percentile[2]
Property tax
76th percentile[3]

Rankings

Top-10 lists this ZIP code appears on.

Frequently asked

How much is a home worth in ZIP code 63121?
The typical home in 63121 is worth $89,620, based on the Zillow Home Value Index.
Are home values rising in 63121?
Home values in 63121 are down 2.2% over the past year, and up 5.0% a year over five years.
What is the typical rent in 63121?
A typical home in 63121 rents for about $1,175 a month, a gross rental yield of 15.7%.
What is the property tax rate in 63121?
The effective property tax rate in 63121 is 1.6% — roughly $1,466 a year on a typical home.
Who lives in 63121?
ZIP code 63121 has a population of 25,008 and a median household income of $42,701.

#Comparable ZIPs

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

  • Jennings, MO

    Typical home
    $86,694
    Gross yield
    16.9%
  • South Roxana, IL

    Typical home
    $94,085
    Gross yield
  • Bellefontaine Neighbors, MO

    Typical home
    $95,180
    Gross yield
    16.9%
  • Dupo, IL

    Typical home
    $80,503
    Gross yield
  • Madison, IL

    Typical home
    $79,167
    Gross yield
  • Pagedale, MO

    Typical home
    $78,353
    Gross yield
    18.9%

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