O'Fallon Missouri Map

About O'Fallon, Missouri

O'Fallon is a locality in St. Louis (city), Missouri, United States. It has a population of 91,316. The population density is 1184.1 people per km². O'Fallon is located at 38.7835°N, 90.7153°W. It observes the Central Time (America/Chicago) timezone. O'Fallon is an incorporated locality. ZIP codes: 63115, 63367.

O'Fallon stretches across a landscape defined by the steady, inland character of the Midwestern plains, where the horizon remains wide and open under a vast, unencumbered sky. It lies 3.5 miles north-northwest of Saint Louis, MO (from Saint Louis, MO: bearing 331°T), and is situated 3.5 miles north-northwest of St. Louis. Louis. The ground here holds the memory of ancient glacial shifts, presenting a terrain that tilts toward the Mississippi River, which flows with a heavy, deliberate strength just two miles to the east. Across the quiet expanse, the light at dusk takes on a pale, bruised violet hue, catching the edges of the flatlands and the low, distant silhouette of Les Mamelles rising seventeen miles away. Within the local geography, the land feels deliberate and grounded, marked by the presence of St Louis City (Fairgrounds Park Lake), which serves as a singular, quiet anchor for the surrounding acreage.

Growth in O'Fallon has transformed the soil from its early agricultural roots into a modern landscape of commerce and suburban development, echoing the labor and persistence of those who first settled these prairie reaches. The local economy now pulses with the rhythm of professional services and retail, replacing the older, smaller-scale farming cycles that once dictated the pace of the day. Residents move through a life anchored by the proximity of Kerr Island and the distant, rushing sound of Chain of Rocks, navigating a community that values plain-spoken utility over ornamentation. O'Fallon maintains a steady, unremarkable equilibrium, where the sound of wind moving through dry grass during the autumn months often carries more weight than the passing of any single afternoon.

About This O'Fallon Map Page

This page provides an embedded street and satellite map of O'Fallon, Missouri. Coordinates: 38.783459, -90.715253. Live weather conditions are sourced directly from the National Weather Service. Real-time local and world news feeds keep the page current.

Detailed location data for O'Fallon includes the ZIP code (63115, 63367), telephone area code (314), county seat of St. Louis (city), and school district assignment (Fort Zumwalt R-II School District).

Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity. Population figures are sourced from the 2020 US Census.