What does solar cost in Illinois?

Solar Panel Costs in Illinois vary by location. 2,240 solar installers operate across 1,396 ZIP codes. Use our calculator for a precise estimate.

How many solar installers are in Illinois?

Illinois has approximately 2,240 solar installers across 1,396 ZIP codes, based on Census Bureau business pattern data.

What is the best area for solar in Illinois?

Based on our opportunity scoring (walkability, income, and competition), the top-rated area in Illinois is ZIP 60045 with a score of 100/100. See our full rankings for the top 20 locations.

Is Illinois a good market for solar?

Illinois rates as a fair market for solar with an average opportunity score of 48/100. The score factors in walkability, median income, population density, and existing competition across 1,396 scored ZIP codes.

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Solar Panel Costs in Illinois

Aggregated from 1,396 ZIP codes · Data updated March 2026

Best Markets in IL ›

Avg Opportunity Score

Fair

13 Million

Total Population

$75 Thousand

Avg Median Income

2,240

Registered Solar Installers

Illinois has 2,240 registered solar installers across 1,396 ZIP codes, serving a population of 13 Million. Median household income averages $75,232, close to the national median.

Mixed picture. The 48/100 state average covers a wide spread: a few standout ZIP codes, a lot of middling ones. Competition runs about 1.6 businesses per ZIP. Location selection matters more here than in higher-scoring states.

Top ZIP Codes in Illinois

See all 20 ›

ZIP 60045 Pop. 21 Thousand

$230 Thousand

med. income

100

score

ZIP 60410 Pop. 14 Thousand

$120 Thousand

med. income

100

score

ZIP 60661 Pop. 12 Thousand

$140 Thousand

med. income

100

score

ZIP 60601 Pop. 16 Thousand

$130 Thousand

med. income

100

score

ZIP 62684 Pop. 5.4 Thousand

$140 Thousand

med. income

100

score

ZIP 60136 Pop. 8.6 Thousand

$120 Thousand

med. income

100

score

ZIP 60654 Pop. 24 Thousand

$140 Thousand

med. income

100

score

ZIP 60605 Pop. 34 Thousand

$120 Thousand

med. income

100

score

ZIP 60521 Pop. 18 Thousand

$240 Thousand

med. income

100

score

#10

ZIP 60422 Pop. 9.9 Thousand

$130 Thousand

med. income

100

score

Best Markets

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

Best Solar Installers Markets in Illinois

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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.