About This Place
Viola (pronounced vy-ola) is a village in Mercer County, Illinois, United States. The population was 956 at the 2000 census.
Viola is located at 41°12′14″N 90°35′5″W / 41.20389°N 90.58472°W / 41.20389; -90.58472 (41.203833, -90.584620).
According to the United States Census Bureau, the village has a total area of 0.8 square miles (2.1 km²).All of it is land; none of it is covered by water.