Helen Carr Castello Elementary vs Joseph Sims Elementary
A head-to-head comparison of two elementary schools in California, United States, 3.2 km apart, using official American 2025 data. The better value in each row is highlighted.
Helen Carr Castello Elementary
Elk Grove · Public elementary · Grades K–6
790 students
Joseph Sims Elementary
Elk Grove · Public elementary · Grades K–6
691 students
| Measure | Helen Carr Castello Elementary Elk Grove, California | Joseph Sims Elementary Elk Grove, California |
|---|---|---|
| Success Index (US) | 59 Top 50% | 54 Top 50% |
| State rank | #1446 of 5,693 | #1719 of 5,693 |
| National rank | #19184 of 50,301 | #22637 of 50,301 |
| Sector | Public | Public |
| Type | Elementary | Elementary |
| Year range | Grades K–6 | Grades K–6 |
| Students | 790 | 691 |
| Enrollment | 790 | 691 |
| Free/reduced-price lunch | 50.4% | 48.9% |
| Students per teacher | 23.9 | 22.3 |
| Reading proficiency | 62% | 56% |
| Math proficiency | 59% | 53% |
| city | Elk Grove | Elk Grove |
| state | California | California |
| Website | – | – |
The verdict
- •Helen Carr Castello Elementary scores higher on the Success Index (US) (58.5 vs 53.6).
- •Helen Carr Castello Elementary does better on math proficiency (59% vs 53%).
- •Helen Carr Castello Elementary does better on reading proficiency (62% vs 56%).
- •Joseph Sims Elementary does better on community advantage (fewer free/reduced-price lunch) (48.9% vs 50.4%).
- •Joseph Sims Elementary does better on students per teacher (22.3 vs 23.9).
- •Helen Carr Castello Elementary is the larger school with 790 students compared with 691.
The Success Index (US) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
Free academic assessment
Torn between two schools? Start with your child.
Whichever you choose, a free Success Tutoring assessment shows exactly where your child is in English and Maths and how to get ahead before the next school year.
- Personalised learning plan mapped to the Australian Curriculum
- English & Maths from Kindergarten to Year 12
- Flexible memberships, no lock-in contracts
- Centres across NSW, VIC, QLD, WA, SA and ACT
Frequently asked questions
Is Helen Carr Castello Elementary better than Joseph Sims Elementary?
On the Success Index (US), Helen Carr Castello Elementary ranks higher (58.5 vs 53.6 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 Helen Carr Castello Elementary and Joseph Sims Elementary?
About 3.2 km in a straight line, between Elk Grove and Elk Grove in California.
Which has the better Enrollment?
Helen Carr Castello Elementary: 790. Joseph Sims Elementary: 691. Students enrolled in the latest NCES directory year.
How do Helen Carr Castello Elementary and Joseph Sims Elementary rank in California?
Helen Carr Castello Elementary is 1446th of 5,693 and Joseph Sims Elementary is 1719th of 5,693 among elementary schools in California on the 2025 Success Index (US).