ZIP Code · MO

ZIP 63366

Part of O Fallon, MO
Pop. 54,769·Saint Charles County·16th most expensive ZIP in Missouri
Median rent (all units)
$1,762/mo
Year-over-Year
+6.8%
Month-over-Month
-0.6%
vs US Median
-$203
Falling (Monthly)
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Most AffordableMost Expensive
ZIP 63366 · $1,762
More affordable than 54% of US ZIP codes · National median $1,965/mo
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Medians by bedroom

Rent by unit size

Studio
$1,090
1 BR
$1,140
2 BR
$1,390
3 BR
$1,790
4 BR+
$2,070
Research median
$1,390/mo

Bedroom estimates are gross rents that include essential utilities (electricity, water, gas, sewer, trash).

Rent trends

12-month history

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Last updated: July 20, 2026

Annual cost
$21,144/yr
At $1,762/mo median
Location
StateMO
CountySaint Charles County
Rent Market Meter
Landlord's Market
Renter's MarketBalancedLandlord's Market
Rents are climbing (6.8% YoY), so leverage tilts toward landlords. Act sooner rather than later.
Based on rent-price momentum (+6.8% YoY, -0.6% MoM), not inventory.
Demographics

Who lives here

ZIP 63366 (O Fallon, MO) is majority owner-occupied, has a median income above the national average, 33.3% of residents hold a bachelor's degree or higher.

Population
54,769
Median income
$100,621
Median age
40.4
Renters
17.9%
Age distribution
21.9%
19.8%
28.5%
13.2%
16.6%
Under 1821.9%
18–3419.8%
35–5428.5%
55–6413.2%
65+16.6%
Gender
49.8%
50.2%
Male49.8%
Female50.2%
Race & ethnicity
81.5%
White81.5%
Black5.5%
Hispanic6.4%
Asian3.1%
Other3.5%
Education (25+)
29.1%
31.9%
33.3%
No HS diploma5.7%
HS diploma29.1%
Some college31.9%
Bachelor's+33.3%
Housing tenure
82.1%
17.9%
Owner82.1%
Renter17.9%

Source: U.S. Census Bureau · ACS 2024 5-Year Estimates

2021 vs 2026

How ZIP 63366 in O Fallon, MO has changed in 5 years

Income
$84,414 → $100,621
up 19.2%
Population
51,995 → 54,769
up 5.3%
Renter share
17.6% → 17.9%
+0.3 pts
Bachelor's+
34.9% → 33.3%
-1.6 pts
Median age
39.5 → 40.4
+0.9 yrs

Census figures show median household income at $100,621 today, compared with $84,414 five years earlier. The population has grown by 5.3% since 2021, moving from about 51,995 residents to roughly 54,769.

Community

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Local insights

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About renting in ZIP 63366

Last updated: July 20, 2026

ZIP code 63366 covers O Fallon, MO. The median rent here is $1,762/mo as of July 2026. A 1-bedroom rents for a median of $1,140/mo. A 2-bedroom rents for a median of $1,390/mo.

At 21% of local median household income ($100,621/yr), ZIP 63366 ranks as affordable compared to the national benchmark of 30%. Rents have increased 6.8% over the past year.

FAQ

Frequently asked questions

How much is rent in ZIP code 63366?

As of July 20, 2026, the median monthly rent in ZIP 63366 (O Fallon, MO) is $1,762. This is based on aggregated data from public sources and community submissions.

How does ZIP 63366 rent compare to the US average?

ZIP 63366's median rent of $1,762/mo is $203 (10%) below the US national median of $1,965/mo.

How does ZIP 63366 compare to other ZIPs in Missouri?

ZIP 63366 is one of the pricier ZIP codes in Missouri, ranking #16 out of 136 ZIPs tracked at $1,762/mo.

How much income do you need to rent in ZIP 63366?

To keep rent at or below 30% of gross income, you would need to earn at least $70,000/year (~$34/hour full-time) to afford the median rent of $1,762/mo in ZIP 63366. The local median household income is $100,621/yr, meaning the typical household meets that threshold.

Is rent going up or down in ZIP 63366?

Rent in ZIP 63366 has increased 6.8% over the past year as of July 20, 2026, putting upward pressure on renter budgets.

Is ZIP 63366 an affordable place to rent?

ZIP 63366 is considered very affordable for renters. At $1,762/mo, rent takes approximately 21% of the local median household income ($100,621/yr). The standard benchmark is 30%. ZIP 63366 falls comfortably within that range.

What percentage of ZIP 63366 residents rent vs. own?

According to Census data, approximately 17.9% of ZIP 63366 households are renters, while 82.1% are owner-occupied. ZIP 63366 leans toward homeownership, which can mean a smaller rental inventory.

How does ZIP 63366 compare to the rest of O Fallon?

ZIP 63366 is more affordable than O Fallon overall. At $1,762/mo, it's $84 below the O Fallon citywide median of $1,846/mo.

When was rent data for ZIP 63366 last updated?

Rent data for ZIP 63366 reflects July 20, 2026. RentDataNow refreshes all data monthly using public and private datasets.
Income Affordability
21%
VERY AFFORDABLE

At $1,762/mo, rent takes ~21% of ZIP 63366's median household income ($100,621/yr). The standard benchmark is 30%.

ZIP 63366 21%Benchmark 30%
State income tax2–4.7%
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Public schools near ZIP 63366 (O Fallon, MO)

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