When will the power be back in Markham, IL?

Markham is a city of about 11,290 residents in Cook County.

ComEd has reported outages for Markham by name on its own public outage map (most recently observed 2026-09-18) — so when Markham 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 Markham:

• 60428

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

Around Markham: the closest other places we track are Hazel Crest, about 2 miles to the south; Harvey, about 2 miles to the east; Midlothian, about 2 miles to the northwest; and Country Club Hills, about 3 miles to the southwest. Also nearby: Oak Forest (3 mi W), Homewood (3 mi SE), Blue Island (4 mi N), Crestwood (4 mi NW), Riverdale (4 mi NE), South Holland (5 mi E), Dolton (5 mi E) and Alsip (5 mi NW).

Looking further out, the nearest place we track is: north toward Evergreen Park (8 mi); east toward Calumet City (7 mi); southeast toward Chicago Heights (7 mi); south toward Park Forest (8 mi); southwest toward Matteson (7 mi); west toward Tinley Park (6 mi); and northwest toward Palos Heights (7 mi).

Markham's last tracked outage began Sep 3, peaked at 59 customers out, and was restored in 35 minutes. Across the 4 outages tracked here, the typical (median) restoration ran 2 hours.

• Sep 3 — 59 customers out, restored in 35 minutes
• Sep 1 — 39 customers out, restored in an hour
• Aug 20 — 257 customers out, restored in 3 hours
• Aug 18 — 257 customers out, restored in 2 hours