Zip Code 62269
O Fallon, Illinois — St. Clair County
📍 ZIP code 62269 is in O Fallon, St. Clair County, Illinois.
ZIP code 62269 is located in O Fallon, St. Clair County, Illinois. It is a zip code in the Central (CST/CDT) Time Zone with an estimated population of 35,536. The area code for ZIP code 62269 is 618.
Quick Answer
Zip code 62269 is in O Fallon, Illinois (St. Clair County). It has a population of 35,536, median household income of $100,167, and median home value of $274,200.
Population
35,536
Income
$100,167
Home Value
$274,200
Climate
90°F / 24°F
About Zip Code 62269
Zip code 62269 is located in O Fallon, Illinois, within St. Clair County. Home to approximately 35,536 residents, this area sits at an elevation of 529 ft and falls within the Central (CST/CDT) timezone. The local area code is 618.
The median household income is $100,167 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $274,200, and the cost of living index is 109 (9% above the national average of 100).
Summers average a high of 90°F while winters drop to 24°F. The area receives about 43 in of rain and 11 in of snow annually. The zip code covers 27 square miles of land area and 0.3 square miles of water.
Key Statistics
35,536
$100,167
$274,200
Central (CST/CDT)
618
529 ft
27 sq mi
37.2
14,616
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Compare With Nearby Zip Codes
| Metric | 62269 | 62208 | 62254 | 62232 | 62225 | 62221 |
|---|---|---|---|---|---|---|
| City | O Fallon, IL | Belleville, IL | Lebanon, IL | Caseyville, IL | Belleville, IL | Belleville, IL |
| Population | 35,536 | 16,653 | 6,339 | 7,480 | 5,606 | 29,281 |
| Median Income | $100,167 | $78,423 | $89,500 | $64,268 | $91,988 | $78,619 |
| Home Value | $274,200 | $167,900 | $196,600 | $114,800 | $0 | $207,200 |
| Cost of Living | 109 | 74 | 83 | 60 | 106 | 82 |
| Median Age | 37.2 | 40.8 | 34.8 | 42.9 | 25.3 | 37.6 |
Cost of Living
100 = National Average. O Fallon's cost of living is 9% above the national average.
vs. State Avg
Above
Affordability
Moderate
Income-to-Home
2.7x
Demographics
Zip code 62269 has a population of 35,536 people with a median age of 37.2. There are 14,616 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
O Fallon (62269) population trend from 2010 to 2024
↓ -13.5%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
90°F
24°F
43 in
11 in
O Fallon experiences hot summers with average highs around 90°F. Winters are cool with lows averaging 24°F. The area receives about 11 in of snow per year.
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Housing & Economy
Median Home Value
$274,200
Median Household Income
$100,167
With 14,616 housing units across 27 square miles, 62269 has a housing density of 541 units per square mile. The home price-to-income ratio is 2.7x.
Location & Geography
Latitude
38.6000°
Longitude
-89.9154°
Land Area
27 sq mi
Water Area
0.3 sq mi
Nearby Zip Codes
Zip codes closest to 62269 (O Fallon, IL) with distances:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 62269's $100,167. 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 62269 (O Fallon, IL). 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, Illinois?
O Fallon, Illinois uses zip code 62269.
What county is zip code 62269 in?
Zip code 62269 is located in St. Clair County, Illinois.
What is the population of zip code 62269?
The population of zip code 62269 is 35,536 with a median age of 37.2.
Is 62269 in O Fallon, Illinois?
Yes, zip code 62269 is in O Fallon, St. Clair County, Illinois. The area code is 618.
Frequently Asked Questions
What city is zip code 62269 in?
Zip code 62269 is in O Fallon, Illinois. It is part of St. Clair County and uses the Central (CST/CDT) timezone.
What is zip code 62269?
Zip code 62269 is a U.S. postal code in O Fallon, Illinois (St. Clair County). It has a population of 35,536 and covers 27 square miles.
What is the population of zip code 62269?
The population of zip code 62269 (O Fallon, IL) is 35,536 with a median age of 37.2. There are approximately 14,616 housing units in this area.
What is the median income in zip code 62269?
The median household income in zip code 62269 (O Fallon, IL) is $100,167 per year. The cost of living index is 109 (100 = national average).
What is the average home price in zip code 62269?
The median home value in zip code 62269 (O Fallon, IL) is $274,200. The cost of living index is 109 compared to the national average of 100.
What county is zip code 62269 in?
Zip code 62269 is located in St. Clair County, Illinois. The primary city is O Fallon.
What is the area code for zip code 62269?
Zip code 62269 in O Fallon, IL uses area code 618. It is located in the Central (CST/CDT) timezone.
Is zip code 62269 a good place to live?
Zip code 62269 (O Fallon, IL) has a cost of living index of 109 (100 = national average), a median household income of $100,167, and median home values of $274,200. The median age is 37.2. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 62269?
The cost of living index for zip code 62269 (O Fallon, IL) is 109, where 100 represents the national average. This area is above the national average. Median home value: $274,200.
What schools serve zip code 62269?
Zip code 62269 in O Fallon, Illinois is served by the local school district of St. Clair 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.