Zip Code 63367
O Fallon, Missouri — St. Charles County
📍 ZIP code 63367 is in O Fallon, St. Charles County, Missouri.
ZIP code 63367 is located in O Fallon, St. Charles County, Missouri. It is a zip code in the Central (CST/CDT) Time Zone with an estimated population of 27,893. The area code for ZIP code 63367 is 636.
Quick Answer
Zip code 63367 is in O Fallon, Missouri (St. Charles County). It has a population of 27,893, median household income of $134,932, and median home value of $381,000.
Population
27,893
Income
$134,932
Home Value
$381,000
Climate
88°F / 21°F
About Zip Code 63367
Zip code 63367 is located in O Fallon, Missouri, within St. Charles County. Home to approximately 27,893 residents, this area sits at an elevation of 588 ft and falls within the Central (CST/CDT) timezone. The local area code is 636.
The median household income is $134,932 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $381,000, and the cost of living index is 148 (48% above the national average of 100).
Summers average a high of 88°F while winters drop to 21°F. The area receives about 44 in of rain and 14 in of snow annually. The zip code covers 13.4 square miles of land area and 0.8 square miles of water.
Key Statistics
27,893
$134,932
$381,000
Central (CST/CDT)
636
588 ft
13.4 sq mi
39.7
10,884
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Compare With Nearby Zip Codes
| Metric | 63367 | 63385 | 63366 | 63341 | 63348 | 63304 |
|---|---|---|---|---|---|---|
| City | O Fallon, MO | Wentzville, MO | O Fallon, MO | Defiance, MO | Foristell, MO | Saint Charles, MO |
| Population | 27,893 | 50,420 | 54,449 | 3,554 | 10,207 | 43,389 |
| Median Income | $134,932 | $111,851 | $98,237 | $177,583 | $106,458 | $114,124 |
| Home Value | $381,000 | $321,300 | $283,900 | $552,600 | $364,900 | $331,300 |
| Cost of Living | 148 | 124 | 105 | 177 | 130 | 124 |
| Median Age | 39.7 | 37.1 | 39.2 | 47.7 | 44.2 | 41.3 |
Cost of Living
100 = National Average. O Fallon's cost of living is 48% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
2.8x
Demographics
Zip code 63367 has a population of 27,893 people with a median age of 39.7. There are 10,884 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
O Fallon (63367) population trend from 2010 to 2024
↓ -32.3%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
88°F
21°F
44 in
14 in
O Fallon experiences warm summers with average highs around 88°F. Winters are cool with lows averaging 21°F. The area receives about 14 in of snow per year.
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Housing & Economy
Median Home Value
$381,000
Median Household Income
$134,932
With 10,884 housing units across 13.4 square miles, 63367 has a housing density of 812 units per square mile. The home price-to-income ratio is 2.8x.
Location & Geography
Latitude
38.7742°
Longitude
-90.7951°
Land Area
13.4 sq mi
Water Area
0.8 sq mi
Nearby Zip Codes
Zip codes closest to 63367 (O Fallon, MO) with distances:
All Zip Codes in O Fallon, MO
Other zip codes serving O Fallon:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 63367's $134,932. A way to compare O Fallon to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 63367 (O Fallon, MO). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is O Fallon, Missouri?
O Fallon, Missouri uses zip code 63367 along with 1 other zip codes.
What county is zip code 63367 in?
Zip code 63367 is located in St. Charles County, Missouri.
What is the population of zip code 63367?
The population of zip code 63367 is 27,893 with a median age of 39.7.
Is 63367 in O Fallon, Missouri?
Yes, zip code 63367 is in O Fallon, St. Charles County, Missouri. The area code is 636.
Frequently Asked Questions
What city is zip code 63367 in?
Zip code 63367 is in O Fallon, Missouri. It is part of St. Charles County and uses the Central (CST/CDT) timezone.
What is zip code 63367?
Zip code 63367 is a U.S. postal code in O Fallon, Missouri (St. Charles County). It has a population of 27,893 and covers 13.4 square miles.
What is the population of zip code 63367?
The population of zip code 63367 (O Fallon, MO) is 27,893 with a median age of 39.7. There are approximately 10,884 housing units in this area.
What is the median income in zip code 63367?
The median household income in zip code 63367 (O Fallon, MO) is $134,932 per year. The cost of living index is 148 (100 = national average).
What is the average home price in zip code 63367?
The median home value in zip code 63367 (O Fallon, MO) is $381,000. The cost of living index is 148 compared to the national average of 100.
What county is zip code 63367 in?
Zip code 63367 is located in St. Charles County, Missouri. The primary city is O Fallon.
What is the area code for zip code 63367?
Zip code 63367 in O Fallon, MO uses area code 636. It is located in the Central (CST/CDT) timezone.
Is zip code 63367 a good place to live?
Zip code 63367 (O Fallon, MO) has a cost of living index of 148 (100 = national average), a median household income of $134,932, and median home values of $381,000. The median age is 39.7. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 63367?
The cost of living index for zip code 63367 (O Fallon, MO) is 148, where 100 represents the national average. This area is above the national average. Median home value: $381,000.
What schools serve zip code 63367?
Zip code 63367 in O Fallon, Missouri is served by the local school district of St. Charles County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.