25 of Ontario's public and charter campuses ran a TK class in 2025-26, enrolling 973 four-year-olds.
Source: CDE 2025-26 Census Day enrollment, 25 campuses in Ontario.
| School | TK students | TK % of campus | Scope Score |
|---|---|---|---|
| Ranch View Elementary | 95 | 12.0% | Developing40 |
| Park View Elementary | 72 | 8.2% | Strong74 |
| Creek View Elementary | 48 | 8.4% | Developing41 |
| Mountain View Elementary | 46 | 7.7% | Developing34 |
| Euclid Elementary | 45 | 7.9% | Developing40 |
| Sultana Elementary | 45 | 7.9% | Developing42 |
| El Camino Elementary | 43 | 9.6% | Developing43 |
| Ontario Center | 42 | 7.5% | Needs Support28 |
| Richard Haynes Elementary | 41 | 6.4% | Developing37 |
| Liberty Elementary | 40 | 7.1% | Solid51 |
| Berlyn Elementary | 39 | 6.3% | Developing35 |
| Levi H. Dickey Elementary | 39 | 8.8% | Developing38 |
| Bon View Elementary | 34 | 6.1% | Developing41 |
| Mariposa Elementary | 34 | 5.8% | Developing36 |
| Del Norte Elementary | 33 | 6.8% | Developing36 |
| Hawthorne Elementary | 33 | 5.8% | Developing44 |
| Lincoln Elementary | 33 | 6.5% | Developing43 |
| Elderberry Elementary | 32 | 6.1% | Solid51 |
| Mission Elementary | 32 | 5.8% | Developing39 |
| Corona Elementary | 31 | 6.5% | Solid50 |
| Vista Grande Elementary | 31 | 9.1% | Developing47 |
| Arroyo Elementary | 30 | 6.3% | Developing33 |
| Vineyard Elementary | 24 | 4.6% | Developing44 |
| Edison Elementary | 23 | 3.3% | Solid63 |
| Central Language Academy | 8 | 1.1% | Developing45 |
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src="https://schoolscope.co/embed/tk-map?city=ontario"
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title="Transitional kindergarten campuses in Ontario, CA — map by SchoolScope">
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<p><small>TK data: <a href="https://schoolscope.co/ca/tk/ontario">SchoolScope — TK campuses in Ontario</a>,
from California Dept. of Education 2025-26 Census Day enrollment.</small></p>Free to embed with the credit link. Data updates automatically.
This is a single-day headcount — California's 2025-26 Census Day snapshot, not an ongoing enrollment feed. A campus missing from this list may still offer TK; our census match covers most but not all active campuses (no match here means "unknown," not "no TK"). And a school having TK doesn't guarantee it has an open seat for your child this year — enrollment isn't the same as availability. Call the school or check with the district to confirm.
Data source: California Department of Education · CAASPP 2024-25 · Methodology
Scores are SchoolScope's analysis of public data, not official CDE ratings. They represent one way of interpreting test results and should not be the sole basis for school decisions.