What does solar cost in Washington?

Solar Panel Costs in Washington vary by location. 1,976 solar installers operate across 605 ZIP codes. Use our calculator for a precise estimate.

How many solar installers are in Washington?

Washington has approximately 1,976 solar installers across 605 ZIP codes, based on Census Bureau business pattern data.

What is the best area for solar in Washington?

Based on our opportunity scoring (walkability, income, and competition), the top-rated area in Washington is ZIP 98040 with a score of 100/100. See our full rankings for the top 20 locations.

Is Washington a good market for solar?

Washington rates as a fair market for solar with an average opportunity score of 53/100. The score factors in walkability, median income, population density, and existing competition across 605 scored ZIP codes.

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Solar Panel Costs in Washington

Aggregated from 605 ZIP codes · Data updated March 2026

Best Markets in WA ›

Avg Opportunity Score

Fair

7.7 Million

Total Population

$80 Thousand

Avg Median Income

1,976

Registered Solar Installers

Washington has 1,976 registered solar installers across 605 ZIP codes, serving a population of 7.7 Million. Median household income averages $80,030 — 5,030 above the national median.

Mixed picture. The 53/100 state average covers a wide spread: a few standout ZIP codes, a lot of middling ones. Competition runs about 3.3 businesses per ZIP. Location selection matters more here than in higher-scoring states.

Top ZIP Codes in Washington

See all 20 ›

ZIP 98040 Pop. 25 Thousand

$200 Thousand

med. income

100

score

ZIP 98121 Pop. 21 Thousand

$150 Thousand

med. income

100

score

ZIP 98625 Pop. 7 Thousand

$120 Thousand

med. income

100

score

ZIP 98117 Pop. 35 Thousand

$180 Thousand

med. income

100

score

ZIP 98116 Pop. 28 Thousand

$130 Thousand

med. income

100

score

ZIP 98029 Pop. 31 Thousand

$160 Thousand

med. income

100

score

ZIP 98380 Pop. 5.2 Thousand

$120 Thousand

med. income

100

score

ZIP 98024 Pop. 4.6 Thousand

$150 Thousand

med. income

100

score

ZIP 98112 Pop. 24 Thousand

$160 Thousand

med. income

100

score

#10

ZIP 98019 Pop. 12 Thousand

$160 Thousand

med. income

100

score

Best Markets

See the top 20 ZIP codes in Washington ranked by opportunity score with full breakdowns.

Best Solar Installers Markets in Washington

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Data sources: Census Bureau American Community Survey 2023, USDA National Walkability Index 2021, County Business Patterns 2022, FDIC Summary of Deposits 2023.