Electricity rates in Johnston, IA
Johnston (20,871 people, Polk County) is served by MidAmerican Energy Co.. Homes on MidAmerican Energy Co. pay about 11.46¢/kWh, 19% less than the Iowa average.
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Electric companies serving Johnston
| Utility | Type | Rate | Avg bill | Homes (statewide) | Outage min |
|---|---|---|---|---|---|
| MidAmerican Energy Co. | Investor-owned utility | 11.46¢ | $95 | 640K | 205 |
Power outages in Polk County right now
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Outage history in Polk County
| 2024 | 2025 | |
|---|---|---|
| Outage minutes per customer | 173 | 115 |
| Days with outages | 45 | 41 |
| Most customers out at once | 26,999 (9.4%) | 24,009 (8.4%) |
| Worst day | 2024-05-21 | 2025-07-28 |
Outage minutes by month, 2025
Less outage time than 2024 (173 min). Data: ORNL EAGLE-I county outage snapshots every 15 minutes, covering all utilities in the county.
Nearby cities
- Urbandale 11.5¢
- Saylorville 11.5¢
- Grimes 11.5¢
- Clive 11.5¢
- Windsor Heights 11.5¢
- Ankeny 11.5¢
- West Des Moines 11.5¢
- Des Moines 11.5¢
- Polk City 11.5¢
- Granger 11.5¢
ZIP codes: 50131
Frequently asked questions
What is the electricity rate in Johnston?
Most homes in Johnston get power from MidAmerican Energy Co., where residential customers pay an average of 11.46¢/kWh including all charges. The Iowa average is 14.13¢ and the U.S. average 17.99¢.
What is the average electric bill in Johnston?
About $95 a month, based on 828 kWh a month (the average for MidAmerican Energy Co. customers) at 11.46¢/kWh. Homes with electric heat, pools or EVs pay more.
Who is the electric company in Johnston, IA?
MidAmerican Energy Co. serves Johnston.
How often does the power go out in Johnston?
In 2025, customers in Polk County averaged 115 min without power. Outages hit 41 days of the year, and the worst day was 2025-07-28, when 24,009 customers (8.4%) were out. Source: ORNL EAGLE-I.