Merrimack Town Of--town Offices, Town Hall, Town Clerks Office Merrimack, NH 03054 Phone : (603) 424-3651 Business Category Government Offices-City Village & Twp Government Offices State & Local Government Offices & Public Schools Merrimack Tax Collector 6 Baboosic Lake Rd Merrimack, NH 03054 Phone : (603) 424-3651 Business Category Public Finance Taxation & Monetary Policy