Byrnes Mill URL: https://knowledge.ivjn.us/en/places/mo-byrnes-mill.html Byrnes Mill is a town in Missouri, United States. ## Overview Byrnes Mill is a town in [Missouri](https://knowledge.ivjn.us/en/places/missouri.html), United States, with a population of about 2,888[^geonames]. ## Geography - Coordinates: 38.4378, -90.5818 Updated: 2026-10-29 Relations: - Located in: Jefferson County https://knowledge.ivjn.us/en/places/mo-jefferson-county.html Sources: - GeoNames US dataset (US.txt / admin2Codes.txt) https://download.geonames.org/export/dump/US.zip