Poplar Grove is located in Illinois. Poplar Grove, Illinois has a population of 4,514. Poplar Grove is more family-centric than the surrounding county with 60.57% of the households containing married families with children. The county average for households married with children is 31.2%.
The median household income in Poplar Grove, Illinois is $104,559. The median household income for the surrounding county is $74,076 compared to the national median of $69,021. The median age of people living in Poplar Grove is 36.5 years.
The average high temperature in July is 82.9 degrees, with an average low temperature in January of 11.3 degrees. The average rainfall is approximately 37.2 inches per year, with 32.2 inches of snow per year.