Serving 248 students in grades Kindergarten-5, Mariano Castro 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 15-19% (which is lower than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 20-24% (which is lower than the California state average of 47%).
The student-teacher ratio of 18:1 is lower than the California state level of 21:1.
Minority enrollment is 96% of the student body (majority Hispanic), which is higher than the California state average of 80% (majority Hispanic).
Quick Facts (2026-27)
- Grades: Kindergarten-5
- Enrollment: 248 students
- Student-Teacher Ratio: 18:1
- Minority Enrollment: 96%
- Overall Testing Rank: Bottom 50% in CA
- Math Proficiency: 15-19% (Btm 50%)
- Reading Proficiency: 20-24% (Btm 50%)
- Science Proficiency: 10-14% (Btm 50%)
- Attendance Zone: Mariano Castro Elementary serves the southwest part of Mountain View, CA, covering an area of approximately 0.4 square miles. Families in this zone typically have a 5-10 minute drive to the school, with the furthest edge being about 0.6 miles away.
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Overview
Mariano Castro Elementary School's student population of 248 students has declined by 18% over five school years.
The teacher population of 14 teachers has stayed relatively flat over five school years.
Grades Offered
Grades Kindergarten-5
Total Students
248 students
Total Classroom Teachers
14 teachers
School Calendar
School Rankings
Mariano Castro 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 Mariano Castro Elementary School is 0.17, 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
#7963 out of 9523 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
15-19%
34%
Reading/Language Arts Test Scores (% Proficient)
20-24%
47%
Science Test Scores (% Proficient)
10-14%
29%
Student-Teacher Ratio
18:1
21:1
Asian
4%
12%
Hispanic
91%
56%
White
4%
20%
Hawaiian
1%
n/a
All Ethnic Groups
Chronically Absent Students
(22-23)33.1%
27.7%
Eligible for Free Lunch
74%
54%
Eligible for Reduced Lunch
8%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
Frequently Asked Questions
What is Mariano Castro Elementary School's ranking?
Mariano Castro Elementary School is ranked #7963 out of 9,523 schools, which ranks it among the bottom 50% of public schools in California.
What schools are Mariano Castro Elementary School often compared to?
Mariano Castro Elementary Schoolis often viewed alongside schools like Edith Landels Elementary School, Theuerkauf Elementary School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
15-19% of students have achieved math proficiency (compared to the 34% CA state average), while 20-24% of students have achieved reading proficiency (compared to the 47% CA state average).
How many students attend Mariano Castro Elementary School?
248 students attend Mariano Castro Elementary School.
What is the racial composition of the student body?
91% of Mariano Castro Elementary School students are Hispanic, 4% of students are Asian, 4% of students are White, and 1% of students are Hawaiian.
What is the student-teacher ratio of Mariano Castro Elementary School?
Mariano Castro Elementary School has a student ration of 18:1, which is lower than the California state average of 21:1.
What grades does Mariano Castro Elementary School offer ?
Mariano Castro Elementary School offers enrollment in grades Kindergarten-5
What school district is Mariano Castro Elementary School part of?
Mariano Castro Elementary School is part of Mountain View Whisman School District.
In what neighborhood is Mariano Castro Elementary School located?
Mariano Castro Elementary School is located in the Shoreline West neighborhood of Mountain View, CA. There are 2 other public schools located in Shoreline West.
School Reviews
5 10/10/2025
I go to this school and I love it. it's really awesome I really recommend you to send your children to this school. ( if you live in Mountain View ). I am a 4th grader and my teacher is Ms.Fung, she's like the best teacher in the world!
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