Marietta is located in Washington County, Ohio. There are roughly 11,826 residents, living in 4,792 households. The average temperature for Marietta this time of the year is low of 62F and high of 86F. On average, Marietta gets about 4.36 inches of precipitation in July. Most residents are home owners (53%), have a high school diploma (51%) and are single, no kids (52%).
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