The GPS coordinates of Saint John are latitude 38.7148° and longitude -90.3463°. In directional format: 38.7148° N, 90.3463° W. These coordinates mark the center of Saint John in Missouri and work with Google Maps, OpenStreetMap and every major navigation app.

Saint John is a city in Missouri, United States, on the continent of North America. It falls within Saint Louis County. View its exact position on the satellite map above or check nearby cities for regional context.

In DMS (Degrees Minutes Seconds) format, Saint John sits at: Latitude 38° 42' 53" N and Longitude 90° 20' 47" W. This format is common in surveying records, printed maps and legacy GPS hardware still used by field crews on site visits.

Saint John has a population of approximately 6,584 people. This is roughly 0.105% of Missouri's total population. See the population rank and density figures above, or compare it against every city in Missouri.

The interactive satellite map of Saint John is embedded on this page and shows streets, buildings and terrain. You can also enter the GPS coordinates 38.7148, -90.3463 directly into Google Maps, Apple Maps or any navigation app to locate Saint John in Missouri. For broader context, explore the Missouri state map or nearby cities.

The nearest airport to Saint John is St. Louis Lambert International Airport (STL), roughly 4 km away. See the Nearest Airport card in the sidebar for the exact distance in kilometers and miles.

Saint John is approximately 159 km (99 mi) from Jefferson City, the capital of Missouri, measured as a straight-line distance between city centers. See the Major Cities table above for distances from other cities in Missouri.

Saint John sits at an elevation of approximately 196 meters (643 feet) above sea level — see the Geographic Profile above. Compare it against other cities in the Major Cities table for Missouri.

The closest cities to Saint John include Saint Johns, Charlack, Woodson Terrace. See the Geographic Intelligence panel above for the full list with distances, or the nearby cities tool for a complete breakdown.

Today in Saint John, sunrise is at 04:11 AM and sunset is at 06:01 PM, giving a day length of 13h 49m. See the Sunrise & Sunset panel above, calculated directly from Saint John's GPS coordinates and updated daily.

Saint John is approximately 4,310 km (2,678 mi) from the Equator, in the northern hemisphere. It's also about 7,847 km from the Prime Meridian. See the Global Position panel above for the full breakdown.

The antipodal point of Saint John — the spot exactly opposite it through the Earth's center — falls nearest to Port-aux-Français, French Southern Territories, roughly 1,943 km from the true antipode. Since about 71% of the Earth's surface is ocean, most antipodal points land in open water rather than on a named city.

Saint John is approximately 235 km (146 mi) N of Washington, the national capital of United States, measured as a straight-line distance between city centers. See the Distance to Capitals card above.