Abbotsford is a city in Clark (mostly) and Marathon counties in the U.S. state of Wisconsin. It is part of the Wausau, Wisconsin Metropolitan Statistical Area. The population was 2,310 at the 2010 census. Of this, 1,616 were in Clark County, and 694 were in Marathon County. Abbotsford is nicknamed "Wisconsin's First City" due to its alphabetical place on a list of Wisconsin cities.