Annawan Township is located in Henry County, Illinois. There are roughly 1,207 residents, living in 498 households. The average temperature for Annawan Township this time of the year is low of 62F and high of 84F. On average, Annawan Township gets about 4.27 inches of precipitation in August. Most residents are home owners (77%), have a high school diploma (52%) and are single, no kids (37%).
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