Dewey, IL 61840 solar market data
Updated August 17, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Dewey 61840 has 16 solar installations, recent growth not yet measurable, and a Market Score of 41 — higher than 38% of U.S. zip markets.
Versus Illinois
How 61840 compares with the state
Installed cost
—
state median $6.56/W
Market score
41 vs 43
Illinois scores 43
Share of state installs
0.01%
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
Growth & pricing
61840 by year
2 installs in the trailing twelve months vs 6 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 61840
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | ROUTE 66 SOLAR | 2 | 0 | 8.97 | — |
| 2 | GOODPWR | 1 | 1 | 5.27 | — |
| 3 | SUNRUN | 1 | 1 | 17.22 | — |
| 4 | AG TECHNOLOGIES | 1 | 0 | 12.96 | — |
| 5 | BLUE SKY SMART SOLUTIONS | 1 | 0 | 11.75 | — |
| 6 | RECTOR CONSTRUCTION | 1 | 0 | 17.64 | — |
| 7 | SUN SOLAR | 1 | 0 | 8.8 | — |
Frequently asked
Quick answers about 61840
How many solar installations are there in 61840?
SolarDNA counts 16 active solar installations in Dewey 61840, 11 of them residential, with data through August 17, 2026.
How much does solar cost in 61840?
Not enough priced systems in 61840 to report a median.
Is solar growing in 61840?
Recent growth cannot be measured yet for 61840: too few recent installs (data runs through August 17, 2026).
Who installs solar in 61840?
ROUTE 66 SOLAR, GOODPWR, SUNRUN lead the 7 installers with systems in 61840. The full comp set is above.
Is 61840 a good market for solar sales?
61840 scores 41 out of 100 (Good, higher than 38% of U.S. zip markets). With under 500 installations the score is provisional.