Sidney URL: https://knowledge.ivjn.us/en/places/mt-sidney.html Sidney is a town in Montana, United States. ## Overview Sidney is a town in [Montana](https://knowledge.ivjn.us/en/places/montana.html), United States, with a population of about 6,828[^geonames]. ## Geography - Coordinates: 47.7167, -104.1563 Updated: 2026-10-29 Relations: - Located in: Richland County https://knowledge.ivjn.us/en/places/mt-richland-county.html Sources: - GeoNames US dataset (US.txt / admin2Codes.txt) https://download.geonames.org/export/dump/US.zip