What is the average electricity rate in Castle Rock, Washington?

The average residential electricity rate in Castle Rock is approximately 15.40¢/kWh per kWh. The average household pays around $116 per month for electricity.

What is the average natural gas bill in Castle Rock?

Natural gas customers in Castle Rock pay an average of $75 per month. The rate is approximately $1.23/therm per therm.

Which electric company serves Castle Rock, Washington?

Electricity in Castle Rock is distributed by Puget Sound Energy (PSE) and Seattle City Light. Contact your provider at your local service address to confirm which utility serves your home.

Which gas company serves Castle Rock?

Castle Rock natural gas service is provided by Puget Sound Energy (PSE) and Cascade Natural Gas. Call them directly for new service connections or to report a gas leak.

How do Castle Rock electricity rates compare to Washington averages?

Castle Rock's electricity rate of 15.40¢/kWh is above the Washington state average of 14.95¢/kWh. Urban areas often have higher distribution costs.

How do I start or stop utility service in Castle Rock?

To start electric service in Castle Rock, contact Puget Sound Energy (PSE) and Seattle City Light. For gas service, contact Puget Sound Energy (PSE) and Cascade Natural Gas. You'll typically need a photo ID, your new address, and a move-in date. Service can usually be established within 1-3 business days.

Castle Rock, Washington Gas & Electricity Rates — Utility Providers & Savings 2026

Gas & Electricity in Castle Rock, Washington

Castle Rock is a community in Washington served by Puget Sound Energy (PSE) for electric and Puget Sound Energy (PSE) for gas. The area's utility rates reflect Washington's statewide energy market and the region's mild and rainy west of Cascades, dry and cold east climate.

Compared to the Washington state average of 14.95¢/kWh/kWh, Castle Rock's electricity rate of 15.40¢/kWh is 0.45¢ above the Washington average. As Washington has a regulated market, your utility is determined by your address.

Electric Utility in Castle Rock

Puget Sound Energy (PSE)
Seattle City Light
Tacoma Power
Pacific Power

Natural Gas Utility in Castle Rock

Puget Sound Energy (PSE)
Cascade Natural Gas
Avista

Castle Rock vs Washington Energy Rates

Metric	Castle Rock	Washington Average	US Average
Electric Rate (¢/kWh)	15.40¢	14.95¢	16.00¢
Gas Rate ($/therm)	$1.23	$1.17	$1.47
Monthly Electric Bill	$116	$113	$117
Monthly Gas Bill	$75	$71	$73

Energy Assistance Programs for Castle Rock Residents

As a Washington city, Castle Rock residents can access the following state and local assistance programs:

✅ Washington LIHEAP
✅ Energy Matchmakers
✅ Washington Weatherization Program
✅ PSE Rebates
✅ Seattle City Light's Neighborhood Power program

Energy-Saving Tips for Castle Rock Residents

✓ Washington's cheap hydroelectric power makes electric heating economical.
✓ Consider an electric heat pump — it's 2-3x more efficient than gas heating.
✓ Use weatherization to protect against cold and wet Pacific Northwest winters.
✓ Seattle City Light and PSE offer rebates for insulation and HVAC upgrades.
✓ Sign up for Washington's Low Income Home Energy Assistance Program (LIHEAP).

FAQ — Gas & Electricity in Castle Rock, Washington

The average residential electricity rate in Castle Rock is approximately 15.40¢/kWh per kWh. The average household pays around $116 per month for electricity.
Natural gas customers in Castle Rock pay an average of $75 per month. The rate is approximately $1.23/therm per therm.
Electricity in Castle Rock is distributed by Puget Sound Energy (PSE) and Seattle City Light. Contact your provider at your local service address to confirm which utility serves your home.
Castle Rock natural gas service is provided by Puget Sound Energy (PSE) and Cascade Natural Gas. Call them directly for new service connections or to report a gas leak.
Castle Rock's electricity rate of 15.40¢/kWh is above the Washington state average of 14.95¢/kWh. Urban areas often have higher distribution costs.
To start electric service in Castle Rock, contact Puget Sound Energy (PSE) and Seattle City Light. For gas service, contact Puget Sound Energy (PSE) and Cascade Natural Gas. You'll typically need a photo ID, your new address, and a move-in date. Service can usually be established within 1-3 business days.