Explore Lake St. Louis, Missouri, with this interactive street and satellite map.
| City | Lake St. Louis |
| State | Missouri (MO) |
| County | St. Charles County |
| Country | United States of America |
| Timezone | Central Time (America/Chicago) |
| Latitude | 38.780938 |
| Longitude | -90.78836 |
| Population | 16,707 |
| Density | 755.3 /km² |
| Incorporated | Yes |
| ZIP Code | 63367 |
| Area Code | 314 |
| County Seat | St. Charles |
| School District | Wentzville R-IV School District |
Lake St. Louis emerges from the Missouri landscape as a deliberate intersection of managed water and suburban development. It lies 1.2 miles south of Lake Saint Louis, MO (from Lake Saint Louis, MO: bearing 187°T), and is situated 5.2 miles west-southwest of O'Fallon. The terrain surrounding Lake St. Louis features a subtle, prairie-influenced topography defined by gentle elevations and expansive open spaces. Nearby, the flow of Peruque Creek provides a quiet, persistent movement of water through the local ecosystem. While the horizon remains largely level, the distant silhouette of Tuque Ridge offers a faint, jagged interruption to the otherwise soft lines of the plains. As the sun wanes, the quality of light here catches the surface of Lake Saint Louis, turning the water into a sheet of polished slate that reflects the shifting colors of the evening sky.
Development in Lake St. Louis followed a vision of planned recreation and residential structure that diverged from the agricultural history of the surrounding region. The local economy relies on a diverse base of professional services and retail hubs that sustain the daily requirements of its inhabitants. Many residents participate in a workforce that extends into the broader regional economy, balancing modern industry with the quietude of a planned environment. The proximity to Reifsnider State Forest serves as a reminder of the dense, natural woodlands that once dominated this part of the state before the arrival of modern infrastructure. Commerce here maintains a steady, unremarkable pace, favoring stability over the volatile growth seen in larger metropolitan centers.
Cultural life in Lake St. Louis finds its focal point in the shared spaces that encourage a sense of civic cohesion among its residents. Boulevard Park serves as a central gathering point, offering a localized setting for outdoor activities and neighborhood interaction. While the region lacks the grand, historical monuments of older Missouri cities, the community values the modest, clean aesthetic of its public corridors and residential districts. Notable figures such as the professional golfer Judy Rankin have roots in the broader region, reflecting the athletic spirit that often defines the area’s extracurricular interests. The rhythm of life here is defined by the seasonal changes in the vegetation and the quiet, deliberate way the community marks its holidays and local celebrations.
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This page provides an embedded street and satellite map of Lake St. Louis, Missouri. Coordinates: 38.780938, -90.78836. 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 Lake St. Louis includes the ZIP code (63367), telephone area code (314), county seat of St. Charles County (St. Charles), and school district assignment (Wentzville R-IV 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.
| Page generated | August 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. |