Tunnel Hill is located in Johnson County, Illinois. There are roughly 1,395 residents, living in 610 households. The average temperature for Tunnel Hill this time of the year is low of 67F and high of 89F. On average, Tunnel Hill gets about 3.84 inches of precipitation in July. Most residents are home owners (90%), have a post secondary degree (58%) and are married, no kids (50%).
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