Prairie Du Long Township is located in Saint Clair County, Illinois. There are roughly 1,600 residents, living in 583 households. The average temperature for Prairie Du Long Township this time of the year is low of 65F and high of 88F. On average, Prairie Du Long Township gets about 3.53 inches of precipitation in August. Most residents are home owners (94%), have a post secondary degree (57%) and are married, no kids (45%).
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