House Prices

House Prices & Home Values O Fallon, MO 2026


Average Data

average house price$328,580
average size per house2136 ft²
average price per ft²154 $ / ft²

01/24/2026 - The value range (VR) for house prices in O Fallon, MO is $127/ sqft to $149/ sqft. An average home with 2136 sqft costs approximately $271,272 to $318,264. O Fallon, MO includes 2 ZIP codes and it is located in St. Charles county. The lowest prices are found in ZIP 63366, while the highest are in ZIP 63368. The average price per sqare feet is $154. Our analysis is based on 165 property listings.

Avergage prices by ZIP codes O Fallon

63366125 $ / ft²
63368160 $ / ft²


House prices by neighborhoods in O Fallon

Barathaven147 $ / ft²
Bayfield149 $ / ft²
Brookside162 $ / ft²
Caledonia139 $ / ft²
Monticello149 $ / ft²
Pheasant Point160 $ / ft²
Preston Woods151 $ / ft²
Springhurst162 $ / ft²
Thornbury135 $ / ft²
Villages of Dardenne142 $ / ft²
WingHaven161 $ / ft²
Wyndgate155 $ / ft²




Historical development of home values in O Fallon

Year Estimated value (USD) Change vs. 2025
2010 $152,598 -53.6%
2011 $146,697 -55.4%
2012 $146,303 -55.5%
2013 $151,771 -53.8%
2014 $159,318 -51.5%
2015 $167,494 -49.0%
2016 $176,235 -46.4%
2017 $185,748 -43.5%
2018 $196,017 -40.3%
2019 $205,106 -37.6%
2020 $215,709 -34.4%
2021 $245,345 -25.3%
2022 $286,018 -13.0%
2023 $301,619 -8.2%
2024 $319,068 -2.9%
2025 $328,580 0.0%

Graph: estimated home values in O Fallon over time (USD)



Example: 100% financing house in O Fallon

Loan amount: $328,580

Interest rate: 6.00%

Fixed monthly payment: $1,970.00

Breakdown in the 1st month:
Interest portion: $1,642.90  –  Principal portion: $327.10

Yearly breakdown (100% financing)

Year Interest per year ($) Principal per year ($) Remaining balance at year-end ($)
1 $19,605.04 $4,035.00 $324,545.00
2 $19,356.17 $4,283.87 $320,261.13
3 $19,091.95 $4,548.09 $315,713.04
4 $18,811.43 $4,828.61 $310,884.43
5 $18,513.61 $5,126.42 $305,758.01
6 $18,197.43 $5,442.61 $300,315.39
7 $17,861.74 $5,778.30 $294,537.09
8 $17,505.34 $6,134.69 $288,402.40
9 $17,126.97 $6,513.07 $281,889.33
10 $16,725.26 $6,914.78 $274,974.56
11 $16,298.77 $7,341.27 $267,633.29
12 $15,845.98 $7,794.06 $259,839.23
13 $15,365.26 $8,274.78 $251,564.45
14 $14,854.89 $8,785.15 $242,779.29
15 $14,313.04 $9,327.00 $233,452.29
16 $13,737.77 $9,902.27 $223,550.02
17 $13,127.02 $10,513.02 $213,037.00
18 $12,478.60 $11,161.44 $201,875.56
19 $11,790.18 $11,849.85 $190,025.71
20 $11,059.31 $12,580.73 $177,444.98
21 $10,283.36 $13,356.68 $164,088.31
22 $9,459.55 $14,180.49 $149,907.82
23 $8,584.93 $15,055.11 $134,852.71
24 $7,656.36 $15,983.68 $118,869.03
25 $6,670.52 $16,969.51 $101,899.52
26 $5,623.88 $18,016.16 $83,883.36
27 $4,512.68 $19,127.35 $64,756.00
28 $3,332.95 $20,307.09 $44,448.92
29 $2,080.45 $21,559.58 $22,889.33
30 $750.71 $22,889.33 $0.00

Note: The calculation is based on a standard annuity mortgage with a fixed monthly payment over the entire term. Extra payments, interest rate changes, and additional purchase costs (e.g. taxes, notary fees) are not included.


How to sell in O Fallon, MO


1500 sqft3900 sqft
Ø selling price$279,511$594,594
Ø fast selling$254,101$535,135
Ø high price sale$304,920$654,054

In 2026, houses in O Fallon, MO will be offered at an average price of $154 per square foot. A 1,500 sqft home priced at $279,511 is 22.47% more expensive per square foot than a 3,900 sqft home priced at $594,594. Home prices in O Fallon, MO vary significantly depending on the neighborhood and location. For a quick sale, a 2,700 sqft home should be listed at around $411,643. Sellers who can wait longer may achieve a higher price of up to $503,119.

FAQ – Home Values in O Fallon

What is the median home value in O Fallon in 2026?

In 2026, the typical home value in O Fallon is about $328,580 for an average home size of 2136 square feet. This corresponds to an average price of roughly $154 per square foot.

What is the average cost per square foot in O Fallon?

In 2026, homes in O Fallon sell for an average of around $154 per square foot, with a typical range between $127 and $149 per square foot, depending on the property’s location, condition, and lot size.

What is the average home size in ?

The average home size in O Fallon is about 2136 square feet, with an estimated 2026 value around $328,580.



Locations close to O Fallon, MO

Old Monroe, MO165 $ / ft²
Olney, MO145 $ / ft²
Portage Des Sioux, MO134 $ / ft²
Lake Saint Louis, MO149 $ / ft²
New Florence, MO308 $ / ft²
Moscow Mills, MO162 $ / ft²
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