Ayer is a town in Middlesex County, Massachusetts. Ayer's population is around 7,427. The town takes up a total of 9.6 square miles. There are 3,462 housing units at an average density of 384.7 per square mile. The average house size in Ayer is 1000-1400 square feet. The average single family home price is around $241,200 with the average rental at around $1,710. 61.2% of residences in Ayer are Single Family Homes.
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