Excelsior Charter School Corona-Norco District vs International School for Science and Culture District

Compiled from official source data by PlainSchools. · Updated September 2026

How do these districts compare?

Metric	Excelsior Charter School Corona-Norco District	International School for Science and Culture District
Location	Corona, California	Costa Mesa, California
Total Enrollment	129	130
Number of Schools	1	1
Student:Teacher Ratio	16.3:1	19.4:1

Metric	Excelsior Charter School Corona-Norco District	International School for Science and Culture District
Per-Pupil Expenditure	$14,667	$13,746
Federal Revenue	5.3%	5.0%
State Revenue	68.6%	18.0%
Local Revenue	26.1%	77.0%

Excelsior Charter School Corona-Norco District

Federal State Local

International School for Science and Culture District

Federal State Local

Average across all schools in each district. Source: CCD Membership 2024-25.

Group	Excelsior Charter School Corona-Norco District	International School for Science and Culture District
White	24.1%	19.6%
African American	6.8%	1.0%
Hispanic or Latino	59.4%	45.4%
Asian	2.3%	16.5%
American Indian / Alaska Native	0.0%	0.0%
Pacific Islander	0.8%	0.0%
Multiracial	6.8%	17.5%
Free/Reduced Lunch	41.4%	34.0%

Source: Civil Rights Data Collection (CRDC) 2021-22

Resource	Excelsior Charter School Corona-Norco District	International School for Science and Culture District
AP Courses Offered	N/A	N/A
Schools with AP	0	0
Avg Gifted Enrollment	N/A	N/A
Avg Counselor Ratio	N/A	1720:1
Chronic Absenteeism	N/A	2.3%

Regular Schools 0

Charter Schools 1

Magnet Schools 0

Title I Schools 0

Regular Schools 0

Charter Schools 1

Magnet Schools 0

Title I Schools 0

Source: U.S. Department of Education NCES Common Core of Data + F-33 finance + Civil Rights Data Collection Compiled and formatted by PlainSchools.