Sullivan URL: https://knowledge.ivjn.us/en/places/il-sullivan.html Sullivan is a town in Illinois, United States. ## Overview Sullivan is a town in [Illinois](https://knowledge.ivjn.us/en/places/illinois.html), United States, with a population of about 4,494[^geonames]. ## Geography - Coordinates: 39.5995, -88.6078 Updated: 2026-10-29 Relations: - Located in: Moultrie County https://knowledge.ivjn.us/en/places/il-moultrie-county.html Sources: - GeoNames US dataset (US.txt / admin2Codes.txt) https://download.geonames.org/export/dump/US.zip