Decatur, IL 62521 solar market data
Updated September 8, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Decatur 62521 has 249 solar installations, installations up 22.5% over the trailing twelve months, and a Market Score of 48 — higher than 79% of U.S. zip markets.
Versus Illinois
How 62521 compares with the state
Installed cost
—
state median $6.56/W
Market score
48 vs 43
Illinois scores 43
Share of state installs
0.22%
of 112.7K tracked statewide
Battery attach
0.0%
state 0.0%
Statewide momentum
▲ 23.1%
residential solar added in Illinois, 12 months through Jul 2026
Statewide market
136.9K systems
4.0% of homes · utility-reported through Jul 2026
Next-12-month outlook: 86–108 installs (midpoint 97)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±11% band. Not a forecast of permits or policy.
Growth & pricing
62521 by year
87 installs in the trailing twelve months vs 71 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 62521
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 40 | 21 | 11.42 | — |
| 2 | SOLARSHIPS INSTALLATION SERVICES | 9 | 9 | 10.37 | — |
| 3 | CR SOLAR | 8 | 7 | 8.08 | — |
| 4 | LGCY POWER | 8 | 7 | 9.94 | — |
| 5 | LEGACY SOLAR | 7 | 6 | 12.62 | — |
| 6 | FREEDOM FOREVER | 7 | 5 | 8.45 | — |
| 7 | BRIGHT PLANET SOLAR | 6 | 6 | 7.47 | — |
| 8 | ROUTE 66 SOLAR | 6 | 3 | 11.25 | — |
| 9 | SOLAR MITE ILLINOIS | 4 | 4 | 10.96 | — |
| 10 | OFF GRID BLUE SKY SMART SOLUTIONS | 3 | 1 | 9.81 | — |
| 11 | CONTEMPORARY CONTRACTING | 3 | 0 | 9.99 | — |
| 12 | AVEYO OFF GRID ENERGY SOLUTIONS | 2 | 2 | 6.97 | — |
Frequently asked
Quick answers about 62521
How many solar installations are there in 62521?
SolarDNA counts 249 active solar installations in Decatur 62521, 240 of them residential, with data through September 8, 2026.
How much does solar cost in 62521?
Not enough priced systems in 62521 to report a median.
Is solar growing in 62521?
Installations in 62521 are up 22.5%: 87 in the trailing twelve months versus 71 before.
Who installs solar in 62521?
SUNRUN, SOLARSHIPS INSTALLATION SERVICES, CR SOLAR lead the 30 installers with systems in 62521. The full comp set is above.
Is 62521 a good market for solar sales?
62521 scores 48 out of 100 (Great, higher than 79% of U.S. zip markets). With under 500 installations the score is provisional.