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Markham Power Outages

Cook County, Illinois

updated 8m ago

Customers Out 0 in Markham
Customers Tracked 2,411,904 Cook County

Outages by Utility

reported for Cook County

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Outages Near You

See live outage activity within 10 miles of your location.

Markham

11,434 Estimated Population

No active power outages are currently reported in Markham, Illinois. Markham is in Cook County, and PowerOutage.us tracks 1 utility serving the area.

Outage History — Markham

Over the last 90 days, PowerOutage.us has tracked 729 distinct power outages in Markham, Illinois. The most recent significant outage affected an estimated 1,317 customers on July 27, 2026. When outages occur, power is typically restored in about 28h 55m.

Avg Restoration Time

28h 55m

Most Recent Significant Outage

1,317 customers

July 27, 2026

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Cook County Historical Outages

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Utilities Serving Markham

Outage and customer figures are as reported for Cook County. A dash means the utility serves the city but reports no data for this county.

Commonwealth Edison Company

304 Customers Out 2,411,904 Tracked 0.01% Outage Percent

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