Sumner URL: https://knowledge.ivjn.us/en/places/il-sumner.html Sumner is a town in Illinois, United States. ## Overview Sumner is a town in [Illinois](https://knowledge.ivjn.us/en/places/illinois.html), United States, with a population of about 3,183[^geonames]. ## Geography - Coordinates: 38.7170, -87.8614 Updated: 2026-10-29 Relations: - Located in: Lawrence County https://knowledge.ivjn.us/en/places/il-lawrence-county.html Sources: - GeoNames US dataset (US.txt / admin2Codes.txt) https://download.geonames.org/export/dump/US.zip