Electricity rates in Castle Rock, CO
Castle Rock (55,591 people, Douglas County) is served by 3 electric utilities. Homes on CORE Electric Cooperative pay about 16.98¢/kWh, 2% more than the Colorado average.
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Electric companies serving Castle Rock
| Utility | Type | Rate | Avg bill | Homes (statewide) | Outage min |
|---|---|---|---|---|---|
| CORE Electric Cooperative | Electric cooperative | 16.98¢ | $143 | 169K | 381 |
| Public Service Co of Colorado | Investor-owned utility | 16.72¢ | $98 | 1.38M | 360 |
| Mountain View Electric Association | Electric cooperative | 16.37¢ | $144 | 61K | 130 |
Power outages in Douglas County right now
Checking live outages…
Outage history in Douglas County
| 2024 | 2025 | |
|---|---|---|
| Outage minutes per customer | 142 | 65 |
| Days with outages | 61 | 38 |
| Most customers out at once | 20,721 (13.2%) | 4,881 (3.1%) |
| Worst day | 2024-11-03 | 2025-07-01 |
Outage minutes by month, 2025
Less outage time than 2024 (142 min). Data: ORNL EAGLE-I county outage snapshots every 15 minutes, covering all utilities in the county.
Nearby cities
- Castle Pines 17.0¢
- Castle Pines North 16.7¢
- The Pinery 17.0¢
- Perry Park 16.7¢
- Ponderosa Park 17.0¢
- Stonegate 16.7¢
- Parker 16.7¢
- Carriage Club 16.7¢
- Meridian 16.7¢
- Lone Tree 16.7¢
ZIP codes: 80104, 80108, 80109
Frequently asked questions
What is the electricity rate in Castle Rock?
Most homes in Castle Rock get power from CORE Electric Cooperative, where residential customers pay an average of 16.98¢/kWh including all charges. The Colorado average is 16.58¢ and the U.S. average 17.99¢. Other utilities serving parts of Castle Rock: Public Service Co of Colorado (16.72¢), Mountain View Electric Association (16.37¢).
What is the average electric bill in Castle Rock?
About $143 a month, based on 843 kWh a month (the average for CORE Electric Cooperative customers) at 16.98¢/kWh. Homes with electric heat, pools or EVs pay more.
Who is the electric company in Castle Rock, CO?
3 utilities serve Castle Rock's ZIP codes: CORE Electric Cooperative, Public Service Co of Colorado, Mountain View Electric Association. Which one serves you depends on your street address.
How often does the power go out in Castle Rock?
In 2025, customers in Douglas County averaged 65 min without power. Outages hit 38 days of the year, and the worst day was 2025-07-01, when 4,881 customers (3.1%) were out. Source: ORNL EAGLE-I.