Sidney URL: https://knowledge.ivjn.us/en/places/oh-sidney.html Sidney is a city in Ohio, United States. ## Overview Sidney is a city in [Ohio](https://knowledge.ivjn.us/en/places/ohio.html), United States, with a population of about 20,858[^geonames]. ## Geography - Coordinates: 40.2842, -84.1555 Updated: 2026-10-29 Relations: - Located in: Shelby County https://knowledge.ivjn.us/en/places/oh-shelby-county.html Sources: - GeoNames US dataset (US.txt / admin2Codes.txt) https://download.geonames.org/export/dump/US.zip