Town Hall Address 22 Monument Square Concord, MA 01742 United States- Middlesex County Website http://www.concordma.gov/ Town Clerk 978-318-3100 http://www.concordma.gov/342/Town-Clerk United States Assessor 978-318-3070 http://www.concordma.gov/Directory.aspx?did=40 Mon-Fri: 8:30 to 4:30 22 Monument Square Concord, United States Tax Collector 978-318-3050 Mon-Fri: 8:30 to 4:30 22 Monument Square Concord, United States Fire District 978-369-6697 United States Water 978-318-3250 United States Town Hall Hours Mon-Fri: 8:30 to 4:30 County Middlesex