Clinton County, IL solar installation & market data
Updated September 21, 2026 By The SolarDNA Data Team
Clinton County has 605 solar installations across 12 zip codes, installations down 27.9% over the trailing twelve months, and an installs-weighted Market Score of 41.
Active installations
605
Zip markets
12
Median cost
—
12-mo growth
▼ 27.9%
Installers active
42
County Market Score
Good · installs-weighted across 12 zips
Best zip in Clinton County scores higher than 46% of U.S. zip markets.
Versus Illinois
How Clinton County compares with the state
Installed cost
—
state median $6.56/W
Market score
41 vs 43
Illinois scores 43
Share of state installs
0.54%
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: 83–109 installs (midpoint 96)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±14% band. Not a forecast of permits or policy.
Growth & pricing
Clinton County by year
111 installs in the trailing twelve months vs 154 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Clinton County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUN SOLAR | 62 | 18 | 10 | — |
| 2 | SOLAR ENERGY SOLUTIONS | 19 | 4 | 7 | — |
| 3 | AG TECHNOLOGIES | 11 | 3 | 5 | — |
| 4 | FREEDOM FOREVER | 11 | 9 | 7 | — |
| 5 | SUN SOLAR ILLINOIS | 10 | 0 | 5 | — |
| 6 | LGCY POWER | 9 | 8 | 4 | — |
| 7 | CR SOLAR | 7 | 6 | 3 | — |
| 8 | MISSOURI SUN SOLAR | 6 | 0 | 5 | — |
| 9 | RECON SOLAR CORPORATION | 4 | 2 | 1 | — |
| 10 | ONE EARTH SOLAR | 4 | 4 | 4 | — |
| 11 | SOLARSHIPS INSTALLATION SERVICES | 4 | 4 | 4 | — |
| 12 | IL-SOLAR | 4 | 1 | 3 | — |
| 13 | GRID | 3 | 1 | 2 | — |
| 14 | CONTEMPORARY CONTRACTING | 3 | 1 | 2 | — |
| 15 | OFF GRID ENERGY SOLUTIONS | 3 | 2 | 3 | — |
| 16 | LMD SOLAR | 3 | 0 | 1 | — |
| 17 | EFS ENERGY | 3 | 1 | 2 | — |
| 18 | ZOBRIST ELECTRIC | 2 | 0 | 2 | — |
| 19 | MIDWEST SOLAR SOLUTIONS | 2 | 0 | 2 | — |
| 20 | MARTIN SOLAR | 2 | 2 | 2 | — |
| 21 | ASTRAWATT SOLAR | 2 | 0 | 2 | — |
| 22 | WW ENTERPRISES IL | 2 | 0 | 2 | — |
| 23 | STRAIGHTUP SOLAR | 2 | 1 | 2 | — |
| 24 | AVEYO OFF GRID ENERGY SOLUTIONS | 1 | 1 | 1 | — |
| 25 | TITAN SOLAR POWER | 1 | 1 | 1 | — |