Electricity rates in Marshalltown, IA
Marshalltown (27,620 people, Marshall County) is served by 2 electric utilities. 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 Marshalltown
| Utility | Type | Rate | Avg bill | Homes (statewide) | Outage min |
|---|---|---|---|---|---|
| Interstate Power and Light Co. | Investor-owned utility | 18.29¢ | $135 | 419K | 89 |
| Consumers Energy Co-op | Electric cooperative | 15.29¢ | $165 | 7,121 | 94 |
Power outages in Marshall County right now
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Outage history in Marshall County
| 2024 | 2025 | |
|---|---|---|
| Outage minutes per customer | 197 | 315 |
| Days with outages | 38 | 40 |
| Most customers out at once | 1,673 (10.5%) | 5,131 (32.2%) |
| Worst day | 2024-06-30 | 2025-03-17 |
Outage minutes by month, 2025
More outage time than 2024 (197 min). Data: ORNL EAGLE-I county outage snapshots every 15 minutes, covering all utilities in the county.
Nearby cities
- Conrad 18.3¢
- State Center 18.3¢
- Toledo 18.3¢
- Tama 18.3¢
- Baxter 11.5¢
- Grundy Center 18.3¢
- Grinnell 11.5¢
- Eldora 18.3¢
- Reinbeck 11.5¢
- Traer 11.5¢
ZIP codes: 50158
Frequently asked questions
What is the electricity rate in Marshalltown?
Most homes in Marshalltown 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¢. Other utilities serving parts of Marshalltown: Consumers Energy Co-op (15.29¢).
What is the average electric bill in Marshalltown?
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 Marshalltown, IA?
2 utilities serve Marshalltown's ZIP codes: Interstate Power and Light Co., Consumers Energy Co-op. Which one serves you depends on your street address.
How often does the power go out in Marshalltown?
In 2025, customers in Marshall County averaged 5 hr 15 min without power. Outages hit 40 days of the year, and the worst day was 2025-03-17, when 5,131 customers (32.2%) were out. Source: ORNL EAGLE-I.