When will the power be back in Florissant, MO?

Florissant is a city of about 51,290 residents in St. Louis County.

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

• 63031
• 63032
• 63033
• 63034

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

Around Florissant: the closest other places we track are Hazelwood, about 3 miles to the west; Ferguson, about 4 miles to the southeast; Bridgeton, about 6 miles to the west; and St. Ann, about 6 miles to the southwest. Also nearby: Bellefontaine Neighbors (6 mi SE), Jennings (6 mi SE), Overland (7 mi S), University City (9 mi S), Maryland Heights (10 mi SW), St. Charles (10 mi W), Clayton (11 mi S) and Creve Coeur (11 mi SW).

Looking further out, the nearest place we track is: north toward Jacksonville, IL (64 mi); northeast toward Alton, IL (12 mi); east toward Wood River, IL (14 mi); southeast toward Granite City, IL (12 mi); south toward St. Louis (12 mi); southwest toward Town and Country (14 mi); and west toward St. Peters (15 mi).

Florissant's last tracked outage began Oct 1, peaked at 458 customers out, and was restored in 13 hours. Across the 6 outages tracked here, the typical (median) restoration ran 3 hours.

• Oct 1 — 458 customers out, restored in 13 hours
• Sep 29 — 124 customers out, restored in an hour
• Sep 29 — 70 customers out, restored in 5 hours
• Sep 28 — 61 customers out, restored in an hour