Real Estate Investing in O Fallon, Missouri (63366)

Everything the listing leaves out — vacancy, rent trend, cap rate, landlord climate. All free.

Saint Charles County • Population: 54,449 • Data updated: September 2026

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Should you buy in 63366 (O Fallon, MO)? Our answer, based on the numbers below.

🏠 For Homebuyers
GOOD FIT
Grade B (76/100)

Solid choice — stable market with a reasonable entry point and good rental backup if you ever need to move.

📈 For Investors
MIXED
3.0 / 5 (47/100)

A middle-of-the-road market. Workable, but the best opportunities may be nearby ZIPs rather than this one.

⚠️ Risks to Know
CLEAN

No major risk flags on the data we track.

What’s happening in O Fallon, MO (63366)?

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3.0/ 5

Investability

Overall investment appeal

2.0/ 5

Appreciation

Long-term value growth

3.0/ 5

Cashflow ROI

Rental yield potential

Avg Home Value $366,797
Avg Monthly Rent $1,683
1% Rule ✗ Does Not Meet
Median Income $91,698
% Renters 19.1%

Market Analysis: 63366 O Fallon

ZIP 63366 in O Fallon, MO carries a impressive set of headwinds. Home values near $367K and rents of $1,683/mo sit inside a market where underwriting has to be tight.

For an experienced owner, 63366 can be a a credible choice for hunting ground — but the discount at $367K reflects genuine risk that outside investors often underestimate.

The gap between 63366 and stronger O Fallon ZIPs is not closing quickly. Investors should weight long-horizon assumptions accordingly.

The 63366 ZIP's population of 54,449 has faced economic pressure over the last decade. That pressure shows up in rent delinquency patterns that shows the need for careful underwriting.

Experienced landlords with local relationships tend to find 63366 workable. Turnkey investors from out of state usually find the numbers do not hold up in practice.

Explore the Data — Click a Tab Below
🏦 Current 30-yr Fixed Mortgage Rate: 6.76% as of Sep 10 Source: Freddie Mac PMMS

Here's what matters if you're considering buying a home in O Fallon:

B Good
Buy Confidence Score: 70/100
Affordability
15/25
Appreciation
18/25
Stability
14/20
Timing
8/15
Rental backup
15/15
Affordability
Moderate
Homes cost 4× the median income
Value Trend
Rising (+3.9%)
How home values changed in the past year
Rental Backup
Strong
Could rent for $1,683/mo if you need to move
Market Conditions
BALANCED
Even conditions for buyers and sellers
Bottom Line: Mixed signals in this market. Research specific properties carefully and be prepared to negotiate.
⚖️
BALANCED MARKET
St. Louis, MO-IL Metro Area
Even conditions for buyers and sellers
30 days
Average time to sell
Fast
11.0%
Listings with price cuts
Few Cuts
0.0%
Sale price vs asking
Below Ask
0.0%
Income needed for mortgage
Affordable
📅 Market conditions as of August 29, 2026 — updated weekly from St. Louis, MO-IL metro data
🏠

Property Strategy for 63366

Which property type performs best in this market?

Best for Cash Flow
2BR
3.8% cap rate
Best for Appreciation
2BR
+7.6% 5yr CAGR
Best Overall Value
5BR
$100,359/bedroom
📊 Compare All Property Types →
Type Median Value Est. Rent Cap Rate 5yr CAGR $/Bedroom
2BR $260,417 $1,390 3.8% +7.6% $130,209
3BR $336,061 $1,790 3.8% +6.5% $112,020
4BR $439,509 $2,070 3.4% +6.2% $109,877
5BR $501,793 +6.0% $100,359

Market Trends

Home Value History (with trend line)

$383K$337K$291K$245K$199K$153KJul 2006Jul 2016Jul 2026

Rent History (with trend line)

$1,974$1,897$1,820$1,744$1,667$1,590Feb 2023Nov 2024Jul 2026

📊 How Does 63366 Compare?

Metric 63366 O Fallon St. Louis, MO-IL Missouri
Home Value $366,797 $393,397 N/A $254,657
5-Year CAGR 4.8% 4.7% N/A 7.0%
Avg Rent $1,683 $1,762 N/A -
Cap Rate 3.6% 3.5% - -
💡 Why Invest in 63366? Click to expand

With a 3/5 investability rating, this ZIP shows solid fundamentals for buy-and-hold investors.

📊 See where this ZIP ranks in our Best-of lists →
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Landlord Ground Truth

Real numbers from people who own or manage rentals in ZIP 63366 (O Fallon, MO). Anonymous, moderated, never written by AI.

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Investability
Good
Cap Rate
3.6%
Low
5yr Growth
+4.8%
Moderate

📊 Market Snapshot

Home Value $366,797
Monthly Rent $1,683
Price-to-Rent 18.2:1
1% Rule ✗ Fails

💰 Return Metrics

Gross Yield 5.5%
Cap Rate 3.6%
5-Year IRR 8.3%

📈 Home Appreciation

1-Year +3.9% ▲
3-Year CAGR +2.7% ▲
5-Year CAGR +4.8% ▲
10-Year CAGR +5.8% ▲

🏠 Rent Trends

1-Year -9.2% ▼
3-Year CAGR -0.4% ▼
5-Year CAGR N/A
Negative Leverage — IRR / Tax Play Cap Rate: 3.6%  |  30yr Rate: 6.8%
Leverage reduces cash returns at current rates.

The current 30-yr mortgage rate (6.8%) exceeds the estimated cap rate (3.6%). Financing reduces your cash-on-cash return below the cap rate. Markets like this may still make sense as IRR plays — factoring in appreciation, depreciation, and a future refinance when rates drop.

Run an IRR Analysis →

⚠️ Risk Signals

Composite view of factors that can impact a ZIP's stability and your downside risk.

Vacancy
2.7%
Low risk
Landlord Climate
5.0/5
Friendly
Value Trend (5yr)
+4.8%
Stable
Eviction process: Fast Rent control: Favorable

Demographics in 63366

Population: 54,449

💰 Median Household Income
$91,698
This area
$91,698
State
$62,768
USA
$74,580
🏠 Renter Occupied
19.1%
This area
19.1%
State
23.7%
USA
34.0%
💼 Unemployment Rate
2.7%
This area
2.7%
State
-8.1%
USA
3.7%
🎓 College Educated
34.6%
This area
34.6%
State
8.6%
USA
33.7%
👤 Median Age
39.7 years
This area
39.7 years
State
20.4 years
USA
38.9 years
🏚️ Vacancy Rate
2.7%
This area
2.7%
State
18.8%
USA
10.5%
👥 Population by Ethnicity
White 85.6%
Other/Mixed 7.3%
Hispanic/Latino 5.2%
Black/African American 4.4%
Asian 2.7%
👶 Under 18
22.4%
This area
22.4%
USA
22.0%
👴 65 and Over
14.9%
This area
14.9%
USA
17.3%
📊 Poverty Rate
3.4%
This area
3.4%
USA
11.5%

Crime & Safety

🚧

Crime & Safety Data Coming Soon

We're integrating comprehensive crime statistics including violent crime rates, property crime, and safety scores to help you make informed investment decisions.

Expected: Q1 2025

🎓 Schools in 63366

B Avg School Grade
11 Schools
12.1:1 Avg Class Size
$13,917 Avg Per Pupil

Schools in This ZIP Code

A Very Good

FOREST PARK ELEM.

📚 03 – 05 Elementary
👥
400 Students
👨‍🏫
11.3:1 Class Size
💰
$13,917 Per Student
A Very Good

MOUNT HOPE ELEM.

📚 K – 05 Elementary
👥
445 Students
👨‍🏫
11.8:1 Class Size
💰
$13,917 Per Student
A Very Good

ROCK CREEK ELEM.

📚 K – 05 Elementary
👥
407 Students
👨‍🏫
11.5:1 Class Size
💰
$13,917 Per Student
A Very Good

ST. PETERS ELEM.

📚 K – 02 Elementary
👥
398 Students
👨‍🏫
10.0:1 Class Size
💰
$13,917 Per Student
A Very Good

WESTHOFF ELEM.

📚 K – 05 Elementary
👥
530 Students
👨‍🏫
11.6:1 Class Size
💰
$13,917 Per Student
B+ Above Average

JOSEPH L. MUDD ELEM.

📚 K – 02 Elementary
👥
434 Students
👨‍🏫
12.1:1 Class Size
💰
$13,917 Per Student
B Good

FT. ZUMWALT NORTH MIDDLE

📚 06 – 08 Middle
👥
1,004 Students
👨‍🏫
13.3:1 Class Size
💰
$13,917 Per Student
B Good

FT. ZUMWALT NORTH HIGH

📚 09 – 12 High School
👥
1,528 Students
👨‍🏫
13.6:1 Class Size
💰
$13,917 Per Student
B Good

FT. ZUMWALT WEST HIGH

📚 09 – 12 High School
👥
1,701 Students
👨‍🏫
13.9:1 Class Size
💰
$13,917 Per Student
C Below Average

FT. ZUMWALT HOPE HIGH

📚 09 – 12 High School Limited Data
💰
$13,917 Per Student
C Below Average

MIKE CLEMENS CENTER ADAPT LRNG

📚 K – 12 K-12 Limited Data
💰
$13,917 Per Student
About Repit School Scores

Traditional school ratings rely heavily on standardized test scores, which often reflect family income more than school quality. Repit takes a different approach.

We evaluate schools based on factors that research shows actually impact educational outcomes:

  • Class Size — Smaller classes mean more individual attention
  • School Funding — Resources available for programs, staff, and facilities
  • Community Factors — Neighborhood characteristics that influence student success
  • School Environment — Size, type, and structure

Scores are updated annually using federal education data.

🎓 Nearby Colleges & Universities

5 Nearby 1,381 Off-Campus Students
C
Urshan College
514 students · 6.9 mi
C
Urshan Graduate School of Theology
120 students · 6.9 mi
C
St Charles Community College
5,902 students · 8.1 mi
C
The Salon Professional Academy-St Charles
117 students · 10.9 mi
C+
Lindenwood University
7,288 students · 12.8 mi

Investor Insight: With 1,381 students living off-campus nearby, this area has strong rental demand from the college population.

Frequently Asked Questions

How much do tenants pay in O Fallon, MO?

Rental rates in O Fallon, MO average $1,683/mo. Tenant demand and $367K home values make the yield look reasonable by investor standards.

Do rentals sit vacant long in O Fallon, MO?

Vacancy in O Fallon, MO is elevated, which keeps landlord downtime on reasonable timelines. Most properties lease within the standard window at $1,683/mo.

Does O Fallon, MO make sense for an investment property?

Investors tracking O Fallon, MO will find a 3.0/5 rating supported by $367K median home values and $1,683/mo rents. That profile suits long-term holders targeting predictable returns.

What investment strategy works best in O Fallon, MO?

Investors who focus on careful cash-flow rentals with hands-on management typically do well in O Fallon, MO. The numbers - $367K homes against $1,683/mo rents - support that play.

Are homes affordable in O Fallon, MO?

Homes in O Fallon, MO typically sell near $367K. Prices have moved at a 0.0% 5-year CAGR, which stable long-term demand.

You know 63366 now. You don’t know where it ranks.

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How 63366 ranks in St. Louis, MO-IL

Every ZIP in this metro, ranked. Free.

Cash Flow → Appreciation → Affordable → 1% Rule →
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