International School for Science and Culture vs Union Street Charter
A head-to-head comparison of two elementary schools in California, United States, 971 km apart, using official American 2025 data. The better value in each row is highlighted.
International School for Science and Culture
Costa Mesa · Charter elementary · Grades K–8
97 students
Union Street Charter
Arcata · Charter elementary · Grades K–5
99 students
| Measure | International School for Science and Culture Costa Mesa, California | Union Street Charter Arcata, California |
|---|---|---|
| Success Index (US) | 59 Top 50% | 81 Top 10% |
| State rank | #1425 of 5,693 | #211 of 5,693 |
| National rank | #18921 of 50,301 | #4283 of 50,301 |
| Sector | Charter | Charter |
| Type | Elementary | Elementary |
| Year range | Grades K–8 | Grades K–5 |
| Students | 97 | 99 |
| Enrollment | 97 | 99 |
| Free/reduced-price lunch | 41.2% | 44.4% |
| Students per teacher | 19.4 | 16.5 |
| Reading proficiency | – | 84.5% |
| Math proficiency | – | 84.5% |
| city | Costa Mesa | Arcata |
| state | California | California |
| Website | – | – |
The verdict
- •Union Street Charter scores higher on the Success Index (US) (81.3 vs 58.9).
- •International School for Science and Culture does better on community advantage (fewer free/reduced-price lunch) (41.2% vs 44.4%).
- •Union Street Charter does better on students per teacher (16.5 vs 19.4).
- •Union Street Charter is the larger school with 99 students compared with 97.
The Success Index (US) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
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Frequently asked questions
Is International School for Science and Culture better than Union Street Charter?
On the Success Index (US), Union Street Charter ranks higher (81.3 vs 58.9 out of 100). The index is built from published results and context data, not from teaching quality or fit, so visit both schools before deciding.
How far apart are International School for Science and Culture and Union Street Charter?
About 971 km in a straight line, between Costa Mesa and Arcata in California.
Which has the better Enrollment?
International School for Science and Culture: 97. Union Street Charter: 99. Students enrolled in the latest NCES directory year.
How do International School for Science and Culture and Union Street Charter rank in California?
International School for Science and Culture is 1425th of 5,693 and Union Street Charter is 211th of 5,693 among elementary schools in California on the 2025 Success Index (US).