Bethalto is located in Illinois. Bethalto, Illinois has population of 10,003. Bethalto is more family-centric than the surrounding county with 31% of the households with children.
The median household income in Bethalto, Illinois is $65,040. The median household income for the surrounding county is $63,321 compared to the national median of $66,222. The median age of people living in Bethalto is 40.6 years.
The average high temperature in July is 88.1 degrees, with an average low temperature in January of 19.4 degrees. The annual precipitation is 40.21.