"At Seventeen" also appeared on international charts. In Canada, the single peaked at number one on the "RPM" pop music playlist and number six on the "RPM" Top Singles chart. On "RPM"'s top two-hundred songs of 1975, it ranked number seventy-one. "At Seventeen" reached number thirty-seven on the New Zealand Singles Chart for the week of October 10, 1975. In Australia, it peaked at number eighteen on the Kent Music Report, and was included at number eighty on the year-end chart.