Electricity rates in Mason City, IA
Mason City (27,366 people, Cerro Gordo County) is served by Interstate Power and Light Co.. Homes on Interstate Power and Light Co. pay about 18.29¢/kWh, 29% more than the Iowa average.
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Electric companies serving Mason City
| Utility | Type | Rate | Avg bill | Homes (statewide) | Outage min |
|---|---|---|---|---|---|
| Interstate Power and Light Co. | Investor-owned utility | 18.29¢ | $135 | 419K | 89 |
Power outages in Cerro Gordo County right now
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Outage history in Cerro Gordo County
| 2024 | 2025 | |
|---|---|---|
| Outage minutes per customer | 62 | 162 |
| Days with outages | 17 | 25 |
| Most customers out at once | 1,751 (5.9%) | 7,467 (25.4%) |
| Worst day | 2024-05-21 | 2025-07-29 |
Outage minutes by month, 2025
More outage time than 2024 (62 min). Data: ORNL EAGLE-I county outage snapshots every 15 minutes, covering all utilities in the county.
Nearby cities
- Clear Lake 18.3¢
- Manly 18.3¢
- Nora Springs 18.3¢
- Rockwell 11.5¢
- Sheffield 11.5¢
- Northwood 18.3¢
- Garner 18.3¢
- Saint Ansgar 18.3¢
- Osage 18.3¢
- Forest City 18.3¢
ZIP codes: 50401, 50402
Frequently asked questions
What is the electricity rate in Mason City?
Most homes in Mason City get power from Interstate Power and Light Co., where residential customers pay an average of 18.29¢/kWh including all charges. The Iowa average is 14.13¢ and the U.S. average 17.99¢.
What is the average electric bill in Mason City?
About $135 a month, based on 739 kWh a month (the average for Interstate Power and Light Co. customers) at 18.29¢/kWh. Homes with electric heat, pools or EVs pay more.
Who is the electric company in Mason City, IA?
Interstate Power and Light Co. serves Mason City.
How often does the power go out in Mason City?
In 2025, customers in Cerro Gordo County averaged 2 hr 42 min without power. Outages hit 25 days of the year, and the worst day was 2025-07-29, when 7,467 customers (25.4%) were out. Source: ORNL EAGLE-I.