Algona Junior and Senior High School Building and High School Building Annex, Algona

Algona Junior and Senior High School Building and High School Building Annex are historic buildings located in Algona, Iowa, United States. It opened as Algona High School in 1931, and it served that purpose until 1970 when a new high school building opened on the south side of town. In 1951 an annex building was built on the corner of South Harlan and East Nebraska Streets. The buildings were then converted into a middle school beginning in 1971 and they continued to serve that purpose until 2008. Both buildings were listed together on the National Register of Historic Places in 2014. ()