About Brillion, WIBrillion is located in Wisconsin. Brillion, Wisconsin has a population of 3,228. Brillion is more family-centric than the surrounding county with 36% households with children. The county percentage for households with children is 34%. The median household income in Brillion, Wisconsin is $63,848. The median household income for the surrounding county is $69,585 compared to the national median of $57,525. The median age of people living in Brillion is 39.6 years. Brillion WeatherThe average high temperature in July is 82.4 degrees, with an average low temperature in January of 6.9 degrees. The annual precipitation is 29.21. Brillion MapBrillion real estate officesReal estate near BrillionNearby CitiesNearby Cities Homes for Sale |