Serving 707 students in grades Kindergarten-5, Sierra Elementary School ranks in the bottom 50% of all schools in California for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 11% (which is lower than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 22% (which is lower than the California state average of 47%).
The student-teacher ratio of 24:1 is higher than the California state level of 21:1.
Minority enrollment is 94% of the student body (majority Hispanic), which is higher than the California state average of 80% (majority Hispanic).
Quick Facts (26-27)
- Grades: Kindergarten-5
- Enrollment: 707 students
- Student-Teacher Ratio: 24:1
- Minority Enrollment: 94%
- Overall Testing Rank: Bottom 50% in CA
- Math Proficiency: 11% (Btm 50%)
- Reading Proficiency: 22% (Btm 50%)
- Science Proficiency: 10-14% (Btm 50%)
- Attendance Zone: Sierra Elementary serves the southern part of Lancaster, CA, covering an area of approximately 3.5 square miles. Families within this zone can typically expect a drive of 5 to 10 minutes to reach the school, with the furthest edge being about 2.4 miles away.
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Overview
Sierra Elementary School's student population of 707 students has grown by 17% over five school years.
The teacher population of 30 teachers has grown by 20% over five school years.
Grades Offered
Grades Kindergarten-5
Total Students
707 students
Showing 2015–2025. Full 39-year historical data available below ↓
Total Classroom Teachers
30 teachers
Showing 2014–2025. Full 39-year historical data available below ↓
School Calendar
School Rankings
Sierra Elementary School ranks within the bottom 50% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of Sierra Elementary School is 0.59, which is less than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#8620 out of 9523 schools
(Bottom 50%)
(Bottom 50%)
Showing 2011–2023. Full 14-year historical data available below ↓
Math Test Scores (% Proficient)
11%
34%
Showing 2011–2023. Full 14-year historical data available below ↓
Reading/Language Arts Test Scores (% Proficient)
22%
47%
Science Test Scores (% Proficient)
10-14%
29%
Student-Teacher Ratio
24:1
21:1
Showing 2014–2025. Full 39-year historical data available below ↓
Asian
2%
12%
Showing 2015–2025. Full 38-year historical data available below ↓
Hispanic
57%
56%
Showing 2015–2025. Full 38-year historical data available below ↓
Black
29%
5%
Showing 2015–2025. Full 38-year historical data available below ↓
White
6%
20%
Showing 2015–2025. Full 38-year historical data available below ↓
Two or more races
6%
6%
Showing 2015–2025. Full 15-year historical data available below ↓
All Ethnic Groups
Showing 2015–2025. Full 38-year historical data available below ↓
Chronically Absent Students
(22-23)56.3%
27.7%
Eligible for Free Lunch
84%
54%
Showing 2015–2025. Full 34-year historical data available below ↓
Eligible for Reduced Lunch
8%
8%
Showing 2015–2025. Full 27-year historical data available below ↓
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
Frequently Asked Questions
What is Sierra Elementary School's ranking?
Sierra Elementary School is ranked #8620 out of 9,523 schools, which ranks it among the bottom 50% of public schools in California.
What schools are Sierra Elementary School often compared to?
Sierra Elementary Schoolis often viewed alongside schools like Valley View Elementary School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
11% of students have achieved math proficiency (compared to the 34% CA state average), while 22% of students have achieved reading proficiency (compared to the 47% CA state average).
How many students attend Sierra Elementary School?
707 students attend Sierra Elementary School.
What is the racial composition of the student body?
57% of Sierra Elementary School students are Hispanic, 29% of students are Black, 6% of students are White, 6% of students are Two or more races, and 2% of students are Asian.
What is the student-teacher ratio of Sierra Elementary School?
Sierra Elementary School has a student ration of 24:1, which is higher than the California state average of 21:1.
What grades does Sierra Elementary School offer ?
Sierra Elementary School offers enrollment in grades Kindergarten-5
What school district is Sierra Elementary School part of?
Sierra Elementary School is part of Lancaster Elementary School District.
School Reviews
2 10/10/2025
The classes at this school are very over crowded. In our 4th grader's class there are 35 students that are practically sitting on top of each other. This is so unfair to the students and the teacher. There is no possible way that she can honestly know the abilities of each of the students. The academics have dropped tremendously. Our 4th grader came from being student of the month several times, principal honor roll for two years running now to making b's and c's.. This problem needs to be addressed immediately. We are very involved with what is going on in class.
1 10/10/2025
This school is really trash and can get shut down for all I care.
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