The Merced Union High School District (MUHSD) is a school district headquartered in the Castle Commerce Center on the grounds of the Castle Airport Aviation and Development Center in unincorporated Merced County, California, near Atwater.
The union high school district serves Atwater, Livingston, Merced, and the surrounding area.
[3] In November 1990 the district had 1,057 students of Southeast Asian origin, including 597 boys and 460 girls.
At the time the high school enrollment among Hmong had a large gender imbalance because Hmong girls were pressured to marry relatively early in their lives.
[4] The district has its headquarters within the Castle Commerce Center in unincorporated Merced County, California, near Atwater.