Markham, IL 60428 solar market data
Updated September 14, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Markham 60428 has 126 solar installations, recent growth not yet measurable, and a Market Score of 42 — higher than 47% of U.S. zip markets.
Versus Illinois
How 60428 compares with the state
Installed cost
—
state median $6.56/W
Market score
42 vs 43
Illinois scores 43
Share of state installs
0.11%
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
60428 by year
35 installs in the trailing twelve months vs 27 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 60428
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 45 | 27 | 9.31 | — |
| 2 | BRIGHT PLANET SOLAR | 9 | 6 | 7.94 | — |
| 3 | GREEN GRIDS SOLAR | 1 | 1 | 6.09 | — |
| 4 | SOLAR PANTHER | 1 | 1 | 6.4 | — |
| 5 | TRON SOLAR | 1 | 0 | 6 | — |
Frequently asked
Quick answers about 60428
How many solar installations are there in 60428?
SolarDNA counts 126 active solar installations in Markham 60428, 126 of them residential, with data through September 14, 2026.
How much does solar cost in 60428?
Not enough priced systems in 60428 to report a median.
Is solar growing in 60428?
Recent growth cannot be measured yet for 60428: too few recent installs (data runs through September 14, 2026).
Who installs solar in 60428?
SUNRUN, BRIGHT PLANET SOLAR, GREEN GRIDS SOLAR lead the 5 installers with systems in 60428. The full comp set is above.
Is 60428 a good market for solar sales?
60428 scores 42 out of 100 (Good, higher than 47% of U.S. zip markets). With under 500 installations the score is provisional.