Electricity rates in Williamsville, IL
Williamsville (1,496 people, Sangamon County) is served by 2 electric utilities. Homes on Ameren Illinois Company pay about 17.28¢/kWh, 8% less than the Illinois average.
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Electric companies serving Williamsville
| Utility | Type | Rate | Avg bill | Homes (statewide) | Outage min |
|---|---|---|---|---|---|
| Ameren Illinois Company | Investor-owned utility | 17.28¢ | $153 | 588K | 287 |
| Menard Electric Co-op | Electric cooperative | 20.65¢ | $211 | 9,036 | 186 |
Power outages in Sangamon County right now
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Outage history in Sangamon County
| 2024 | 2025 | |
|---|---|---|
| Outage minutes per customer | 63 | 88 |
| Days with outages | 33 | 30 |
| Most customers out at once | 7,341 (5.3%) | 5,205 (3.8%) |
| Worst day | 2024-04-04 | 2025-08-03 |
Outage minutes by month, 2025
More outage time than 2024 (63 min). Data: ORNL EAGLE-I county outage snapshots every 15 minutes, covering all utilities in the county.
Nearby cities
- Sherman 17.3¢
- Riverton 17.3¢
- Athens 17.3¢
- Grandview 13.9¢
- Springfield 13.9¢
- Leland Grove 17.3¢
- Rochester 17.3¢
- Mount Pulaski 17.3¢
- Jerome 17.3¢
- Southern View 17.3¢
ZIP codes: 62693
Frequently asked questions
What is the electricity rate in Williamsville?
Most homes in Williamsville 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¢. Other utilities serving parts of Williamsville: Menard Electric Co-op (20.65¢).
What is the average electric bill in Williamsville?
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 Williamsville, IL?
2 utilities serve Williamsville's ZIP codes: Ameren Illinois Company, Menard Electric Co-op. Which one serves you depends on your street address.
How often does the power go out in Williamsville?
In 2025, customers in Sangamon County averaged 88 min without power. Outages hit 30 days of the year, and the worst day was 2025-08-03, when 5,205 customers (3.8%) were out. Source: ORNL EAGLE-I.