St. Catherine Girls High School Machakos is a girls boarding school offering the 8 - 4 - 4 System of education including computer studies.

The school is located 12km from Machakos town, along Machakos Kitui Road or 79km from Nairobi. The road is all tarmac. St.Catherine Girls High School sits on a ten-acre piece of land and is 500 metres off the main road. The surroundings are quiet, away from shops or public buildings making it an ideal environment for uninterrupted learning.