Grantsburg is located in Illinois. Grantsburg, Illinois has a population of 428. Grantsburg is more family-centric than the surrounding county with 39.67% of the households containing married families with children. The county average for households married with children is 24.3%.
The median household income in Grantsburg, Illinois is $70,096. The median household income for the surrounding county is $58,502 compared to the national median of $69,021. The median age of people living in Grantsburg is 36.7 years.
The average high temperature in July is 88.7 degrees, with an average low temperature in January of 25.5 degrees. The average rainfall is approximately 48.2 inches per year, with 6.9 inches of snow per year.
