Schools in Ontario, CA

Safety scores and transparency grades from federal incident data · 2021-22 collection

Typical home value: $670,587 (Zillow ZHVI, 2026-06-30) — cheaper than 9% of ZHVI-matched cities. Comparing safety against price? See the Affordable & Safe guide.

All schools, safest first

SCHOOL	DISTRICT	GRADES	STUDENTS	SAFETY SCORE	GRADE
Del Norte Elementary	Ontario-Montclair	KG–06	432	95	A
Arroyo Elementary	Ontario-Montclair	KG–07	406	94	A
Vista Grande Elementary	Ontario-Montclair	KG–06	398	94	A
Creek View Elementary	Mountain View Elementary	KG–06	646	93	A
Edison Elementary	Ontario-Montclair	KG–08	673	90	A
Valley View High (Continuation)	Chaffey Joint Union High	09–12	311	90	A
Liberty Elementary	Chino Valley Unified	KG–06	523	86	A
Central Language Academy	Ontario-Montclair	KG–08	720	86	A
Mariposa Elementary	Ontario-Montclair	KG–06	596	84	A
Euclid Elementary	Ontario-Montclair	KG–06	591	78	A
Berlyn Elementary	Ontario-Montclair	KG–06	636	78	A
Colony High	Chaffey Joint Union High	09–12	2,124	78	A
Hawthorne Elementary	Ontario-Montclair	KG–06	545	77	A
Oaks Middle	Ontario-Montclair	07–08	834	70	A
Bon View Elementary	Ontario-Montclair	KG–06	625	65	A
Mission Elementary	Ontario-Montclair	KG–06	608	64	A
Levi H. Dickey Elementary	Chino Valley Unified	KG–06	420	63	A
Ontario High	Chaffey Joint Union High	09–12	2,281	54	A
Vineyard Elementary	Ontario-Montclair	KG–08	662	51	A
Mountain View Elementary	Mountain View Elementary	KG–06	594	50	A
Vina Danks Middle	Ontario-Montclair	07–08	644	33	A
Chaffey High	Chaffey Joint Union High	09–12	3,330	32	A
De Anza Middle	Ontario-Montclair	07–08	540	25	A
Grace Yokley Junior High	Mountain View Elementary	07–08	622	23	A
Woodcrest Junior High	Chino Valley Unified	07–08	345	20	A
Ray Wiltsey Middle	Ontario-Montclair	06–08	880	8	A
Baldy View ROP	Baldy View ROP	09–12		— insufficient data
Chaffey Community Day	Chaffey Joint Union High	09–12	19	— insufficient data	C
Chaffey District Online High	Chaffey Joint Union High	09–12	106	— insufficient data	C
Corona Elementary	Ontario-Montclair	KG–06	455	— insufficient data	D
El Camino Elementary	Ontario-Montclair	KG–06	405	— insufficient data	D
Elderberry Elementary	Ontario-Montclair	KG–06	615	— insufficient data	D
Lincoln Elementary	Ontario-Montclair	KG–06	572	— insufficient data	D
Ontario Center	Cucamonga Elementary	KG–05	561	— insufficient data	C
Park View Elementary	Mountain View Elementary	M–M		— insufficient data
Ranch View Elementary	Mountain View Elementary	KG–06	852	— insufficient data	E
Richard Haynes Elementary	Ontario-Montclair	KG–06	756	— insufficient data	D
Sultana Elementary	Ontario-Montclair	KG–06	676	— insufficient data	D