Mason County, IL solar installation & market data
Updated September 23, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Mason County has 249 solar installations across 9 zip codes, installations down 17.8% over the trailing twelve months, and an installs-weighted Market Score of 41.
Active installations
249
Zip markets
9
Median cost
—
12-mo growth
▼ 17.8%
Installers active
30
County Market Score
Good · installs-weighted across 9 zips
Best zip in Mason County scores higher than 45% of U.S. zip markets.
Versus Illinois
How Mason County compares with the state
Installed cost
—
state median $6.56/W
Market score
41 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: 50–61 installs (midpoint 55)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±10% band. Not a forecast of permits or policy.
Growth & pricing
Mason County by year
60 installs in the trailing twelve months vs 73 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Mason County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 28 | 9 | 4 | — |
| 2 | FREEDOM FOREVER | 19 | 17 | 5 | — |
| 3 | PORTER ELECTRIC | 5 | 2 | 2 | — |
| 4 | OFF GRID ENERGY SOLUTIONS DBA AVEYO | 5 | 4 | 4 | — |
| 5 | LGCY POWER | 4 | 3 | 2 | — |
| 6 | OASIS WORLD SOLUTIONS | 3 | 2 | 1 | — |
| 7 | PROGRESSIVE ELECTRIC | 2 | 0 | 2 | — |
| 8 | BRIGHT PLANET SOLAR | 2 | 1 | 1 | — |
| 9 | QUICK ELECTRIC CONTRACTORS | 2 | 2 | 1 | — |
| 10 | HARVEST ENERGY SOLUTIONS | 2 | 0 | 1 | — |
| 11 | BLUE SKY SMART SOLUTIONS | 2 | 0 | 2 | — |
| 12 | ROUTE 66 SOLAR | 2 | 0 | 2 | — |
| 13 | CR SOLAR | 2 | 2 | 2 | — |
| 14 | TITAN SOLAR POWER | 2 | 0 | 1 | — |
| 15 | REVOLUTION ENERGY SYSTEMS | 2 | 0 | 2 | — |
| 16 | OFF GRID ENERGY SOLUTIONS | 2 | 2 | 2 | — |
| 17 | LEGACY SOLAR | 2 | 1 | 2 | — |
| 18 | EAGLE POINT SOLAR | 2 | 1 | 1 | — |
| 19 | GOODPWR | 2 | 2 | 2 | — |
| 20 | STRAIGHTUP SOLAR | 1 | 0 | 1 | — |
| 21 | SUNRISE SOLAR IL | 1 | 1 | 1 | — |
| 22 | SOLARSHIPS INSTALLATION SERVICES | 1 | 1 | 1 | — |
| 23 | REVOLUTION SOLAR | 1 | 0 | 1 | — |
| 24 | CELL ELECTIRC | 1 | 1 | 1 | — |
| 25 | ECO MANAGEMENT SYSTEMS LIMITED-IL | 1 | 1 | 1 | — |