Electricity rates in Cahokia, IL
Cahokia (14,402 people, St. Clair County) is served by Ameren Illinois Company. Homes on Ameren Illinois Company pay about 17.28¢/kWh, 8% less than the Illinois average.
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Electric companies serving Cahokia
| Utility | Type | Rate | Avg bill | Homes (statewide) | Outage min |
|---|---|---|---|---|---|
| Ameren Illinois Company | Investor-owned utility | 17.28¢ | $153 | 588K | 287 |
Power outages in St. Clair County right now
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Outage history in St. Clair County
| 2024 | 2025 | |
|---|---|---|
| Outage minutes per customer | 200 | 398 |
| Days with outages | 47 | 66 |
| Most customers out at once | 4,529 (4.8%) | 18,062 (19.1%) |
| Worst day | 2024-07-16 | 2025-03-15 |
Outage minutes by month, 2025
More outage time than 2024 (200 min). Data: ORNL EAGLE-I county outage snapshots every 15 minutes, covering all utilities in the county.
Nearby cities
- Centreville 17.3¢
- Dupo 17.3¢
- Alorton 17.3¢
- East Saint Louis 17.3¢
- Washington Park 17.3¢
- Venice 17.3¢
- Fairmont City 17.3¢
- Madison 17.3¢
- Columbia 17.3¢
- Millstadt 17.3¢
ZIP codes: 62206, 62239, 62240
Frequently asked questions
What is the electricity rate in Cahokia?
Most homes in Cahokia get power from Ameren Illinois Company, where residential customers pay an average of 17.28¢/kWh including all charges. The Illinois average is 18.79¢ and the U.S. average 17.99¢.
What is the average electric bill in Cahokia?
About $153 a month, based on 888 kWh a month (the average for Ameren Illinois Company customers) at 17.28¢/kWh. Homes with electric heat, pools or EVs pay more.
Who is the electric company in Cahokia, IL?
Ameren Illinois Company serves Cahokia.
How often does the power go out in Cahokia?
In 2025, customers in St. Clair County averaged 6 hr 38 min without power. Outages hit 66 days of the year, and the worst day was 2025-03-15, when 18,062 customers (19.1%) were out. Source: ORNL EAGLE-I.