Richland Grove Township is located in Mercer County, Illinois. There are roughly 2,436 residents, living in 942 households. The average temperature for Richland Grove Township this time of the year is low of 62F and high of 84F. On average, Richland Grove Township gets about 4.19 inches of precipitation in August. Most residents are home owners (89%), have a post secondary degree (54%) and are married, no kids (43%).
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