Is it cheaper to live in Seattle or San Diego for monthly utilities?

Seattle, WA is approximately 20% cheaper than San Diego, CA in average monthly utilities ($370/mo vs $465/mo), saving approximately $95 per month or $1,140 annually.

How do residential electric rates compare between Seattle and San Diego?

Residential electricity in Seattle is $0.122 per kWh served by Seattle City Light, compared to $0.385 per kWh in San Diego served by San Diego Gas & Electric (SDG&E).

What is the average water and sewer bill in Seattle compared to San Diego?

In Seattle, the minimum water and sewer base meter charge is $56.50/month with Tier 1 volumetric water priced at $6.20 per 1,000 gallons. In San Diego, baseline fixed meter fees are $54.50/month with Tier 1 water at $6.20 per 1,000 gallons.

How do weather and climate affect seasonal utility bills in Seattle vs San Diego?

Seattle experiences 220 Cooling Degree Days (CDD) with a peak summer AC cost spike of 18%, whereas San Diego records 920 CDD with a summer spike of 28%. Heating Degree Days (HDD) are 4700 in Seattle versus 1150 in San Diego.

Seattle, WA vs San Diego, CA Utility Costs Comparison (2026)

Interactive Simulation

Household Sizing Simulator

Select your home type to adjust estimated monthly consumption for Seattle and San Diego.

Seattle Est.

$370/mo

Power:$118

Water & Sewer:$193

Gas & Trash:$119

Projected Variance

-$95/mo

Seattle saves your household roughly $1,140 per year at this consumption tier.

San Diego Est.

$465/mo

Power:$363

Water & Sewer:$139

Gas & Trash:$150

Head-to-Head Utility Tariff Breakdown

Direct comparison of published rates, electric tariffs, and municipal meter charges.

EIA-861 Calibrated

Utility Component	Seattle, WA	San Diego, CA
⚡ Residential Electric Rate ($/kWh)	$0.122 / kWh	$0.385 / kWh
Electric Monthly Customer Base Fee	$8.50/mo	$16.00/mo
Electric Provider & Market Structure	Seattle City Light Regulated Monopoly Utility	San Diego Gas & Electric (SDG&E) Regulated Monopoly Utility
♨️ Natural Gas Rate ($/Therm)	$1.35 / Therm	$2.15 / Therm
Natural Gas Fixed Customer Charge	$14.00/mo	$15.00/mo
💧 Water Base Meter Charge (5/8" - 3/4")	$22.50/mo	$28.50/mo
Water Tier 1 Volumetric (per 1,000 gal)	$6.20	$6.20
Water Tier 2 Conservation (per 1,000 gal)	$9.40	$9.80
Wastewater / Sewer Rates	Base: $34.00/mo Volumetric: $16.50/1k gal	Base: $26.00/mo Volumetric: $7.80/1k gal
🗑️ Curbside Solid Waste & Recycling	$44.50/mo	$38.00/mo
Stormwater Drainage Clean Water Fee	$38.00/mo	$9.20/mo
Initial Move-in Deposit / Connection Fee	Deposit: $150 – $250 Turn-on: $25.00	Deposit: $250 – $450 Turn-on: $35.00

Climate & Seasonal HVAC Load Drivers

NOAA degree-day data dictating peak air conditioning and heating power spikes.

NOAA 1991–2020 Normals

Climate Indicator	Seattle, WA	San Diego, CA
☀️ Cooling Degree Days (CDD)	220 CDD	920 CDD
❄️ Heating Degree Days (HDD)	4,700 HDD	1,150 HDD
Peak Summer AC Bill Volatility	+18% Summer Spike	+28% Summer Spike
Regional Climate Summary	Oceanic temperate maritime climate with heavy winter cloud cover, high sewer/stormwater costs, and low hydro electric rates.	Semi-arid Mediterranean climate with high utility tariffs across southern California.

Clean Energy & Solar Economics

Rooftop solar irradiance and net metering rules to mitigate high utility bills.

NREL Solar Data

Solar Component	Seattle, WA	San Diego, CA
☀️ Daily Peak Sun Hours	3.9 hrs/day	5.4 hrs/day
Net Metering / Export Compensation	Washington State RCW 80.60 1:1 net metering with April 30 annual true-up.	CPUC NEM 3.0 Solar Billing with Avoided Cost Calculator rates.
City Solar Calculator	Seattle Solar Estimator →	San Diego Solar Estimator →

🏙️ Seattle Official Estimator

Seattle, WA Utility Calculator

Access the interactive multi-utility calculator, municipal moving checklists, and verified billing schedules for Seattle.

ZIP: seattle Open Seattle Hub →

🏙️ San Diego Official Estimator

San Diego, CA Utility Calculator

Access the interactive multi-utility calculator, municipal moving checklists, and verified billing schedules for San Diego.

ZIP: san-diego Open San Diego Hub →

Common Inquiries

Frequently Asked Questions: Seattle vs San Diego

Direct answers to key cost of living and utility comparison questions.

Is it cheaper to live in Seattle or San Diego for utilities? ▼

Seattle, WA is approximately 20% cheaper than San Diego, CA in overall monthly utility bills ($370/mo vs $465/mo). A typical household saves around $95 per month or $1,140 annually.

How do residential electric rates compare per kilowatt-hour? ▼

Residential electricity in Seattle costs $0.122 per kWh supplied by Seattle City Light, compared to $0.385 per kWh in San Diego served by San Diego Gas & Electric (SDG&E). For a home consuming 1,000 kWh per month, this rate difference accounts for $263.00 in monthly energy charges before fixed customer meter charges.

What is the water and sewer rate difference between Seattle and San Diego? ▼

In Seattle, the minimum fixed water meter charge is $22.50/mo plus $34.00/mo sewer baseline. In San Diego, the base water fee is $28.50/mo with $26.00/mo sewer baseline. Volumetric Tier 1 water is $6.20/1k gal in Seattle versus $6.20/1k gal in San Diego.

How does weather and climate impact summer and winter power bills? ▼

Seattle logs 220 Cooling Degree Days with a 18% summer AC bill surge. Conversely, San Diego records 920 CDD with a 28% summer surge. Heating Degree Days measure 4,700 in Seattle versus 1,150 in San Diego.

Related Metro Comparisons

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📍 Popular Comparisons for Seattle

Seattle vs New York City, NY $370 vs $440 → Seattle vs Los Angeles, CA $370 vs $395 → Seattle vs Chicago, IL $370 vs $365 → Seattle vs Houston, TX $370 vs $370 →

📍 Popular Comparisons for San Diego

San Diego vs Los Angeles, CA $465 vs $395 → San Diego vs San Jose, CA $465 vs $440 → San Diego vs New York City, NY $465 vs $440 → San Diego vs Chicago, IL $465 vs $365 →

Seattle, WA vs San Diego, CA

Seattle

San Diego

Executive Summary & Citability Passage