Martinsville is located in Somerset County, New Jersey. There are roughly 4,211 residents, living in 1,530 households. The average temperature for Martinsville this time of the year is low of 62F and high of 86F. On average, Martinsville gets about 5 inches of precipitation in July. Most residents are home owners (92%), have a post secondary degree (58%) and are married, no kids (37%).
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