Onarga Township is located in Iroquois County, Illinois. There are roughly 2,259 residents, living in 806 households. The average temperature for Onarga Township this time of the year is low of 63F and high of 86F. On average, Onarga Township gets about 4.1 inches of precipitation in July. Most residents are home owners (78%), have a high school diploma (51%) and are single, no kids (36%).
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