Although St Catherine is a private Catholic school, it accepts applications for all students regardless of parish or religious affiliations.

[1] St. Catherine of Siena School curriculum is aligned with standards of both Diocese of Sacramento and the State of California.

These include educational programs, Internet-based research, writing, and the creation of various kinds of presentations using Photoshop, Publisher, PowerPoint, and IMovie.

In addition, since 2005 the school has sent a team from the 5th and 6th grades to compete in the Diocesan Religion Decathlon.

All these teams compete against the other Catholic schools in the Solano-Pittsburg Athletic League (SPAL).