Union URL: https://knowledge.ivjn.us/en/places/oh-union.html Union is a town in Ohio, United States. ## Overview Union is a town in [Ohio](https://knowledge.ivjn.us/en/places/ohio.html), United States, with a population of about 6,461[^geonames]. ## Geography - Coordinates: 39.8978, -84.3063 Updated: 2026-10-29 Relations: - Located in: Montgomery County https://knowledge.ivjn.us/en/places/oh-montgomery-county.html Sources: - GeoNames US dataset (US.txt / admin2Codes.txt) https://download.geonames.org/export/dump/US.zip