The team, a member of the New England Collegiate Baseball League, plays their home games at Goodall Park.

In late 2001, New England Collegiate Baseball League approached the Town of Sanford about the potential of having a team.

Start-up funds were provided through local businessmen Allen Mapes, Ron Woodward, and Geoff Titherington, as well as Neil Olson, a businessman from Bethel, Maine who had previously been involved with the Lowell All-Americans organization, a former member of the NECBL.

The following is a list of Sanford Mainers attendance figures at Goodall Park dating back to the team's inception in the 2002 season.

Since then, the Mainers have appeared in the final round (2014 and 2016), but fell just short to the Newport Gulls and Mystic Schooners, respectively.