High Quality Content by WIKIPEDIA articles! Garden City High School (known locally as GC) is a fully accredited high school, serving students in grades 9–12, located in Garden City, Kansas, USA. The current principal is James Mireles. Garden City High School (GCHS) is the only high school within the city limits of Garden City, KS. The school colors are brown and white, although gold is generally considered a third official color. Approximately 2,000 students are enrolled for the 2009–2010 school year.