Anna High School is a public high school located in Anna, Texas. It is part of the Anna Independent School District located in north central Collin County and classified as a 3A school by the UIL. In the late 1980s, nearby Westminister High School closed and students there began attending Anna High School. The district just completed construction of a new high school which opened in 2011 that will handle the steady increase in enrollment over the past several years.