What does solar cost in Delaware?

Solar Panel Costs in Delaware vary by location. 265 solar installers operate across 68 ZIP codes. Use our calculator for a precise estimate.

How many solar installers are in Delaware?

Delaware has approximately 265 solar installers across 68 ZIP codes, based on Census Bureau business pattern data.

What is the best area for solar in Delaware?

Based on our opportunity scoring (walkability, income, and competition), the top-rated area in Delaware is ZIP 19807 with a score of 100/100. See our full rankings for the top 20 locations.

Is Delaware a good market for solar?

Delaware rates as a fair market for solar with an average opportunity score of 56/100. The score factors in walkability, median income, population density, and existing competition across 68 scored ZIP codes.

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Solar Panel Costs in Delaware

Aggregated from 68 ZIP codes · Data updated March 2026

Best Markets in DE ›

Avg Opportunity Score

Fair

1 Million

Total Population

$78 Thousand

Avg Median Income

265

Registered Solar Installers

Delaware has 265 registered solar installers across 68 ZIP codes, serving a population of 1 Million. Median household income averages $78,230, close to the national median.

Mixed picture. The 56/100 state average covers a wide spread: a few standout ZIP codes, a lot of middling ones. Competition runs about 3.9 businesses per ZIP. Location selection matters more here than in higher-scoring states.

Top ZIP Codes in Delaware

See all 20 ›

ZIP 19807 Pop. 7.8 Thousand

$160 Thousand

med. income

100

score

ZIP 19717 Pop. 6.5 Thousand

100

score

ZIP 19962 Pop. 13 Thousand

$110 Thousand

med. income

score

ZIP 19709 Pop. 51 Thousand

$130 Thousand

med. income

score

ZIP 19930 Pop. 2.9 Thousand

$120 Thousand

med. income

score

ZIP 19806 Pop. 9.9 Thousand

$86 Thousand

med. income

score

ZIP 19975 Pop. 10 Thousand

$86 Thousand

med. income

score

ZIP 19720 Pop. 61 Thousand

$76 Thousand

med. income

score

ZIP 19946 Pop. 5.5 Thousand

$76 Thousand

med. income

score

#10

ZIP 19952 Pop. 11 Thousand

$78 Thousand

med. income

score

Best Markets

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

Best Solar Installers Markets in Delaware

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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.