Saint John URL: https://knowledge.ivjn.us/en/places/mo-saint-john.html Saint John is a town in Missouri, United States. ## Overview Saint John is a town in [Missouri](https://knowledge.ivjn.us/en/places/missouri.html), United States, with a population of about 6,584[^geonames]. ## Geography - Coordinates: 38.7148, -90.3463 Updated: 2026-10-29 Relations: - Located in: St. Louis County https://knowledge.ivjn.us/en/places/mo-st-louis-county.html Sources: - GeoNames US dataset (US.txt / admin2Codes.txt) https://download.geonames.org/export/dump/US.zip