Solar Panel Costs in California
Aggregated from 1,802 ZIP codes · Data updated March 2026
California has 9,654 registered solar installers across 1,802 ZIP codes, serving a population of 39 Million. Median household income averages $86,920 — 11,920 above the national median.
Mixed picture. The 59/100 state average covers a wide spread: a few standout ZIP codes, a lot of middling ones. Competition runs about 5.4 businesses per ZIP. Location selection matters more here than in higher-scoring states.
Top ZIP Codes in California
See all 20 ›Best Markets
See the top 20 ZIP codes in California ranked by opportunity score with full breakdowns.
Best Solar Installers Markets in CaliforniaData sources: Census Bureau American Community Survey 2023, USDA National Walkability Index 2021, County Business Patterns 2022, FDIC Summary of Deposits 2023.