Merrimac is a town in Essex County, Massachusetts. Merrimac's population is around 6,338. The town takes up a total of 8.8 square miles. There are 2,295 housing units at an average density of 269.1 per square mile. The average house size in Merrimac is 1800-2400 square feet. The average single family home price is around $315,000 with the average rental at around $1,821. 76.7% of residences in Merrimac are Single Family Homes.
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