When will the power be back in Lake St. Louis, MO?

Lake St. Louis is a city of about 19,160 residents in St. Charles County.

Ameren has reported outages for Lake St. Louis by name on its own public outage map (most recently observed 2026-07-29) — so when Lake St. Louis 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 Lake St. Louis:

• 63367

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

Around Lake St. Louis: the closest other places we track are Dardenne Prairie, about 4 miles to the southeast; O'Fallon, about 4 miles to the east; Wentzville, about 5 miles to the northwest; and St. Peters, about 10 miles to the east. Also nearby: Chesterfield (14 mi SE), St. Charles (15 mi E), Wildwood (15 mi SE), Troy (16 mi NW), Ellisville (17 mi SE), Maryland Heights (17 mi E), Ballwin (18 mi SE) and Bridgeton (19 mi E).

Looking further out, the nearest place we track is: north toward Quincy, IL (85 mi); northeast toward Jacksonville, IL (72 mi); east toward Hazelwood (21 mi); southeast toward Town and Country (20 mi); south toward Eureka (21 mi); southwest toward Washington (20 mi); west toward Fulton (63 mi); and northwest toward Mexico (64 mi).

Lake St. Louis's last tracked outage began Sep 5, peaked at 29 customers out, and was restored in 3 hours.

• Sep 5 — 29 customers out, restored in 3 hours