miles About O Fallon Information. View listing photos, review sales history, and use our detailed real estate filters to find the perfect place. mi. 100 North Main Street O'Fallon, MO 63366 Phone: 636-240-2000 Hours: 9 a.m. – 3:30 p.m., Monday – Friday An inherent risk of exposure to COVID-19 exists in any public place where people are present. O Fallon is … Explore O Fallon, Missouri zip code map, area code information, demographic, social and economic profile. It is spread along the coordinates of +38.571835 and -089.895680. Contact; Map; Send to a friend; Market value O Fallon has 1 zip code and 1 area code which we have listed below. O Fallon is a city located in Saint Clair county in the state of Illinois. Zip code 62269 statistics: (Find on map) Estimated zip code population in 2016: 32,247 Zip code population in 2010: 31,348 Zip code population in 2000: 26,249 Mar. 2016 cost of living index in zip code 62269: 89.4 (less than average, U.S. average is 100) Land area: 27.0 sq. Area code(s) 618: FIPS code: 17-55249: Wikimedia Commons: O'Fallon, Illinois: Website: O'Fallon is a city in St. Clair County, Illinois, United States. City Zip Code : 62269, City FIPS Code : 17119 : City Name : O fallon : County Name of These city : St. Clair County This City's State : Illinois { IL } This City's Division Name Water area: 0.3 sq. Zillow has 208 homes for sale in O Fallon MO. ZIP code(s) 62269. It is spread along the coordinates of +38.823944 and -090.742745. … It also has a slightly less than average population density. O Fallon is located in Missouri Latitude: 38.826669 Longitude: -90.732453 Population: 57,519 Each O Fallon Missouri zip code has a center Longitude / Latitude point (the O Fallon center is -90.708999633789 / 38.787700653076). Database Download: O Fallon, Missouri Zip Code Map & Detailed Profile: O Fallon Summary. The city is the third largest city in the Metro-East region and Southern Illinois. O Fallon, IL Saint Clair County 62269 Pre-foreclosure; 3Bd / 2Ba 2,245 sqft $166,782 (EMV) DetailsProperty ID: 29685943. Below is a list of O Fallon MO zip codes.For your research we have also included O Fallon Area Code, Time Zone, UTC and the local Saint Charles County FIPS Code. What Time Zone is O Fallon, Illinois. O Fallon has 1 zip code and 1 area code which we have listed below. O Fallon, MO Acceptable: Cottleville, Dardenne Pr, Dardenne Prairie, Saint Paul, Saint Peters, St Peters Unacceptable: Dardenne, Ofallon, Saint Charles Stats and Demographics for the 63366 ZIP Code. ZIP code 63366 is located in eastern Missouri and covers a slightly less than average land area compared to other ZIP codes in the United States. For your convenience we have also indicated if that zip code in O Fallon observes Daylight Savings time. About O Fallon Information. O Fallon is a city located in Saint Charles county in the state of Missouri. mi. City of O'Fallon, 255 South Lincoln, O'Fallon, IL 62269 Tel: (618) 624-4500 Fax: (618) 624-4508 City Hall Hours: Monday - Friday, 8:00 am - 5:00 pm Website Disclaimer | Government Websites by CivicPlus ® 63366 zip is located in O Fallon, Missouri Latitude: 38.8266691 Longitude: -90.7324525 Population: 57,519 Area: 96.13 sq. What Time Zone is O Fallon, Missouri. The 2010 census listed the population at 28,281.