About This Place
Sumner is a city in Lawrence County, Illinois, United States. The population was 1,022 at the 2000 census.
Sumner is located at 38°42′57″N 87°51′36″W / 38.71583°N 87.86°W / 38.71583; -87.86 (38.715935, -87.859910).
According to the United States Census Bureau, the city has a total area of 1.0 square miles (2.7 km²), all of it land.