Myerstown is a borough located in Lebanon County, Pennsylvania. It is part of the Lebanon, Pennsylvania Metropolitan statistical area. The population was 3,103 at the 2020 census. It is home to over 100 businesses, including a Bayer manufacturing plant, a GAF manufacturing plant, Farmer Boy Ag, Stoneridge Towne Centre and Wengers of Myerstown. The Evangelical Seminary is located on South College Street.