Look at the attendance boundary maps. Apparently Stanton is divided up between 3 school districts.
Garden Grove Unified serves all of Stanton south of Katella Blvd. Check the attendance boundary maps and see if your house is in this district here:
Garden Grove Unified School District
Savana Elementary District serves the small area of Stanton to the northwest of the Beach/Katella intersection. Here are the attendance boundary maps:
Savanna School District
Magnolia Elementary School District serves the area of Stanton just northeast of the Beach/Katella intersection. See their attendance map here:
http://www.msd.k12.ca.us/msd_boundaries.pdf
Check these three maps and see which one your house is in and your assigned school. If you want to transfer out, you need to contact your school district and ask about their transfer rules.