Tunnel Hill Real EstateTunnel Hill is located in Illinois. Tunnel Hill, Illinois has a population of 454. The median household income in Tunnel Hill, Illinois is $73,594. 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 Tunnel Hill is 39.6 years. Tunnel Hill WeatherThe average high temperature in July is 88 degrees, with an average low temperature in January of 23.8 degrees. The average rainfall is approximately 49.4 inches per year, with 11 inches of snow per year. Tunnel Hill MapReal estate near Tunnel HillNearby CitiesNearby Cities Homes for Sale |