Electricity rates in Marthasville, MO
Marthasville (1,152 people, Warren County) is served by 4 electric utilities. Homes on Union Electric Co. pay about 14.03¢/kWh, 1% more than the Missouri average.
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Electric companies serving Marthasville
| Utility | Type | Rate | Avg bill | Homes (statewide) | Outage min |
|---|---|---|---|---|---|
| Union Electric Co. | Investor-owned utility | 14.03¢ | $145 | 1.10M | 594 |
| Cuivre River Electric Co-op | Electric cooperative | 11.66¢ | $154 | 74K | 136 |
| Three Rivers Electric Co-op | Electric cooperative | 13.48¢ | $158 | 23K | 130 |
| Crawford Electric Co-op | Electric cooperative | 13.67¢ | $157 | 20K | 362 |
Power outages in Warren County right now
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Outage history in Warren County
| 2024 | 2025 | |
|---|---|---|
| Outage minutes per customer | 317 | 204 |
| Days with outages | 68 | 47 |
| Most customers out at once | 2,216 (15.4%) | 5,799 (40.4%) |
| Worst day | 2024-03-14 | 2025-09-30 |
Outage minutes by month, 2025
Less outage time than 2024 (317 min). Data: ORNL EAGLE-I county outage snapshots every 15 minutes, covering all utilities in the county.
Nearby cities
- Washington 14.0¢
- New Haven 14.0¢
- Union 14.0¢
- Warrenton 14.0¢
- Wright City 14.0¢
- Villa Ridge 14.0¢
- Gray Summit 14.0¢
- Wentzville 14.0¢
- Lake Saint Louis 14.0¢
- Pacific 14.0¢
ZIP codes: 63357
Frequently asked questions
What is the electricity rate in Marthasville?
Most homes in Marthasville get power from Union Electric Co., where residential customers pay an average of 14.03¢/kWh including all charges. The Missouri average is 13.95¢ and the U.S. average 17.99¢. Other utilities serving parts of Marthasville: Cuivre River Electric Co-op (11.66¢), Three Rivers Electric Co-op (13.48¢), Crawford Electric Co-op (13.67¢).
What is the average electric bill in Marthasville?
About $145 a month, based on 1,032 kWh a month (the average for Union Electric Co. customers) at 14.03¢/kWh. Homes with electric heat, pools or EVs pay more.
Who is the electric company in Marthasville, MO?
4 utilities serve Marthasville's ZIP codes: Union Electric Co., Cuivre River Electric Co-op, Three Rivers Electric Co-op, Crawford Electric Co-op. Which one serves you depends on your street address.
How often does the power go out in Marthasville?
In 2025, customers in Warren County averaged 3 hr 24 min without power. Outages hit 47 days of the year, and the worst day was 2025-09-30, when 5,799 customers (40.4%) were out. Source: ORNL EAGLE-I.