ɪn nˈaɪntiːnhˈʌndɹɪd twˈɛnti, pˈɑːmɚstən nˈɔːɹθ hˈaɪ skˈuːl wʌz splˈɪt ˌɪntʊ tˈuː sˈɪŋɡəlsˈɛks skˈuːlz: pˈɑːmɚstən nˈɔːɹθ ɡˈɜːlz hˈaɪ skˈuːl ænd pˈɑːmɚstən nˈɔːɹθ bˈɔɪz hˈaɪ skˈuːl.
In 1920, Palmerston North High School was split into two single-sex schools: Palmerston North Girls' High School and Palmerston North Boys' High School.