House Prices

Monticello O Fallon, MO House Prices & Home Values 2026


Average Data

average house price$331,162
average size per house2132 ft²
average price per ft²155 $ / ft²

04/15/2026 - The value range (VR) for house prices in Monticello O Fallon, MO is $147.25/ sqft to $162.75/ sqft. An average home with 2132 sqft costs approximately $312,996 to $345,943. O Fallon, MO includes 1 ZIP codes and it is located in St. Charles county. The lowest prices are found in ZIP 63368, while the highest are in ZIP 63368. The average price per sqare feet is $155. Our analysis is based on 12 property listings.

Avergage prices by ZIP codes Monticello O Fallon

63368149 $ / ft²




Historical development of home values in Monticello O Fallon

Year Estimated value (USD) Change vs. 2025
2010 $153,798 -53.6%
2011 $147,850 -55.4%
2012 $147,452 -55.5%
2013 $152,964 -53.8%
2014 $160,570 -51.5%
2015 $168,811 -49.0%
2016 $177,620 -46.4%
2017 $187,207 -43.5%
2018 $197,557 -40.3%
2019 $206,717 -37.6%
2020 $217,404 -34.4%
2021 $247,273 -25.3%
2022 $288,265 -13.0%
2023 $303,989 -8.2%
2024 $321,575 -2.9%
2025 $331,162 0.0%

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



Example: 100% financing house in Monticello O Fallon

Loan amount: $331,162

Interest rate: 5.98%

Fixed monthly payment: $1,981.65

Breakdown in the 1st month:
Interest portion: $1,650.84  –  Principal portion: $330.81

Yearly breakdown (100% financing)

Year Interest per year ($) Principal per year ($) Remaining balance at year-end ($)
1 $19,699.44 $4,080.39 $327,081.61
2 $19,448.55 $4,331.28 $322,750.32
3 $19,182.23 $4,597.61 $318,152.72
4 $18,899.53 $4,880.30 $313,272.42
5 $18,599.45 $5,180.38 $308,092.04
6 $18,280.92 $5,498.91 $302,593.13
7 $17,942.81 $5,837.02 $296,756.10
8 $17,583.90 $6,195.93 $290,560.17
9 $17,202.93 $6,576.90 $283,983.27
10 $16,798.53 $6,981.30 $277,001.97
11 $16,369.27 $7,410.57 $269,591.40
12 $15,913.61 $7,866.22 $261,725.18
13 $15,429.93 $8,349.90 $253,375.28
14 $14,916.52 $8,863.32 $244,511.97
15 $14,371.53 $9,408.30 $235,103.67
16 $13,793.04 $9,986.79 $225,116.87
17 $13,178.97 $10,600.86 $214,516.01
18 $12,527.15 $11,252.68 $203,263.33
19 $11,835.25 $11,944.58 $191,318.75
20 $11,100.81 $12,679.03 $178,639.72
21 $10,321.20 $13,458.63 $165,181.09
22 $9,493.66 $14,286.17 $150,894.92
23 $8,615.24 $15,164.60 $135,730.32
24 $7,682.80 $16,097.03 $119,633.29
25 $6,693.03 $17,086.80 $102,546.49
26 $5,642.41 $18,137.43 $84,409.06
27 $4,527.18 $19,252.66 $65,156.41
28 $3,343.38 $20,436.46 $44,719.95
29 $2,086.79 $21,693.05 $23,026.90
30 $752.93 $23,026.90 $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 Monticello O Fallon, MO


1500 sqft3900 sqft
Ø selling price$280,482$596,660
Ø fast selling$254,983$536,994
Ø high price sale$305,980$656,326

In 2026, houses in Monticello O Fallon, MO will be offered at an average price of $155 per square foot. A 1,500 sqft home priced at $280,482 is 22.93% more expensive per square foot than a 3,900 sqft home priced at $596,660. Home prices in Monticello O Fallon, MO vary significantly depending on the property’s condition and exact location. For a quick sale, a 2,700 sqft home should be listed at around $413,073. Sellers who can wait longer may achieve a higher price of up to $504,866.


Monticello Neighborhood in O?Fallon, MO

Monticello in O?Fallon, MO is a desirable residential neighborhood in St. Charles County known for its convenient suburban setting.
Homebuyers search for Monticello O'Fallon MO because it blends neighborhood charm with quick access to everyday essentials.

Location and Access

Located near major O?Fallon corridors, Monticello offers easy connections to I-64/US-40, Highway K, and nearby employment centers.
Daily conveniences such as grocery stores, dining, and services along Highway K and Mexico Road are just a short drive from the community.

Lifestyle and Amenities

Tree-lined streets, sidewalks, and pocket green spaces create a walkable feel that many residents appreciate.
The neighborhood also sits close to city parks, trails, and recreation in O?Fallon, giving locals plenty of options for outdoor time.

Real Estate and Value

Real estate in Monticello features primarily single-family homes with established landscaping and a mature neighborhood aesthetic.
Buyers value the area?s consistent curb appeal and steady demand, and they can explore current homes for sale in Monticello O'Fallon MO to compare options.

Schools and Nearby Attractions

The neighborhood is served by well-regarded public schools in St. Charles County, with campuses and extracurriculars located a short drive away.
Residents also enjoy proximity to local attractions like Fort Zumwalt Park, Dames Park, and seasonal events in historic O?Fallon.



FAQ – Home Values in Monticello O Fallon

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

In 2026, the typical home value in Monticello O Fallon is about $331,162 for an average home size of 2132 square feet. This corresponds to an average price of roughly $155 per square foot.

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

In 2026, homes in Monticello O Fallon sell for an average of around $155 per square foot, with a typical range between $147.25 and $162.75 per square foot, depending on the property’s location, condition, and lot size.

What is the average home size in Monticello?

The average home size in Monticello O Fallon is about 2132 square feet, with an estimated 2026 value around $331,162.



Neighborhoods close to Monticello O Fallon, MO

Blue Valley Kansas City, MO97 $ / ft²
Guthrie New Bloomfield, MO86 $ / ft²
Baden Saint Louis, MO47 $ / ft²
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