When will the power be back in Ontario, CA?

Ontario is a city of about 185,285 residents in San Bernardino County.

Southern California Edison has reported outages for Ontario by name on its own public outage map (most recently observed 2026-07-29) — so when Ontario is affected, this page can show the city's own customers-out count and restoration time rather than only the county-wide total.

ZIP codes in Ontario:

• 91758
• 91761
• 91762
• 91764

Checking a ZIP goes straight to the address-level view for that area.

Around Ontario: the closest other places we track are Chino, about 5 miles to the southwest; Eastvale, about 6 miles to the south; Montclair, about 6 miles to the northwest; and Upland, about 6 miles to the northwest. Also nearby: Rancho Cucamonga (7 mi N), Jurupa Valley (8 mi E), Norco (9 mi S), Claremont (9 mi NW), Pomona (9 mi W), Chino Hills (9 mi SW), Fontana (9 mi NE) and La Verne (11 mi NW).

Looking further out, the nearest place we track is: northeast toward Rialto (14 mi); east toward Colton (16 mi); southeast toward Riverside (14 mi); south toward Corona (13 mi); southwest toward Yorba Linda (14 mi); west toward Diamond Bar (12 mi); and northwest toward Glendora (16 mi).

Ontario's last tracked outage began Sep 28, peaked at 775 customers out, and was restored in 29 hours. Across the 6 outages tracked here, the typical (median) restoration ran 12 hours.

• Sep 28 — 775 customers out, restored in 29 hours
• Sep 26 — 274 customers out, restored in 7 hours
• Sep 24 — 55 customers out, restored in 16 hours
• Sep 22 — 26 customers out, restored in 50 minutes