MERRIMACK REGION – Vicariate I

Ayer – Saint Mary; Billerica – Saint Andrew, Saint Mary, Saint Theresa of Lisieux; Chelmsford – Saint John the Evangelist, Saint Mary; Littleton – Saint Anne; Pepperell – Our Lady of Grace; Shirley – Saint Anthony of Padua; Townsend – Saint John the Evangelist; Westford – Saint Catherine of Alexandria