LOS ANGELES -- The California Department of Education released its Academic Performance Index for schools Friday, and several Los Angeles Unified School Districts received top marks.

The index includes some 10,000 schools across the state, and ranks their performance and growth on a variety of academic measures.

Six LAUSD high schools received a score of 10, the highest rank possible. They were: College Ready Academy High #4; Granada Hills Charter High; Harbor Teacher Preparation Academy; Los Angeles Center for Enriched Studies; Sherman Oaks Center for Enriched Studies and Renaissance Arts Academy

One LAUSD middle school, Ivy Bound Academy of Math, Science and Technology, received a ranking of 10.

And 26 elementary schools also got a top ranking within the district: Balboa Gifted/High Ability Magnet Elementary; Canyon Elementary; Carpenter Avenue Elementary; Castlebay Lane Elementary; Clover Avenue Elementary; Colfax Avenue Elementary; Community Magnet Charter Elementary; Fairburn Avenue Elementary; Ivanhoe Elementary; Kenter Canyon Elementary; Lanai Road Elementary; Mar Vista Elementary; Marquez Avenue Elementary; Milagro Charter; Overland Avenue Elementary; Palisades Charter Elementary; Park Western Place Elementary; Roscomare Road Elementary; Solano Avenue Elementary; Third Street Elementary; Topanga Learn-Charter Elementary; Warner Avenue Elementary; Welby Way Elementary; Westwood Elementary; Wonderland Avenue Elementary and Woodland Hills Elementary.

Still, more than a quarter of California schools saw some drops, and across the state, the rankings stayed about the same.

The rankings are designed to let parents know how schools are performing, and to allow them to compare schools to one another.

For the complete rankings, see the California Department of Education Academic Performance Index.