The main campus of Merrimack College is situated on of land in
North Andover, Massachusetts, a suburb 25 miles north of downtown
Boston. The main campus features over 40 buildings, including a 125,000-volume library; several classroom buildings, including the School of Engineering and Computational Sciences complex; Palmisano Hall; the Sakowich Campus Center; the Rogers Center for the Arts; the Merrimack Athletic Complex; Austin Hall, which houses administrative offices; the Collegiate Church of Christ the Teacher; student apartment buildings and residence halls. Additionally, Merrimack owns several properties outside of the main campus, including the Louis H. Hamel Health Center and Saint Ambrose Friary (located across Elm Street from the bulk of campus). The library is named after McQuade, the college's founder. The college’s academic buildings, as well as the church and Austin Hall, are generally fronted towards
Route 114, with the residence halls, athletic facilities and campus center lying further back. In 2017, the college received a $29.7 million tax-exempt bond from
MassDevelopment. Merrimack designated several major projects for the funds, including construction of two academic buildings and three residence halls; renovations to renovate O’Reilly Hall, McQuade Library, and several other campus buildings; and upgrades to athletic facilities. The campus has undergone rapid growth and expansion in the 2010s and 2020s, beginning with the construction of two residence halls in 2015 and two academic buildings in 2017 and 2019 on their main campus. They purchased two office buildings on Route 114 in 2022, which became home to their School of Engineering and Computational Sciences. Two more residence halls and an academic building broke ground in 2024. In 2025, Merrimack College purchased the 76 acre Royal Crest apartment complex, located across Route 114 from the main campus, and 305 North Main Street in
Andover. ==Student life==