The Plimpton Name: Records, Origin and Blazon
Plimpton is an English surname. The usual explanation, from Elsdon Smith, is “one who came from Plympton (homestead with plum trees), in Devonshire”. That makes it a habitational name, first given to someone from that place.
566 Americans were listed as Plimpton in the 2010 census. It sits among the 50,000 most common last names in the country.
Heraldry is personal. Arms recorded for a Plimpton family belonged to that family, and other bearers of the name may have no link to them. Get the complete Plimpton report, with a museum-style coat of arms.