LaSalle County, IL solar installation & market data
Updated October 1, 2026 By The SolarDNA Data Team
LaSalle County has 779 solar installations across 22 zip codes, installations down 3.0% over the trailing twelve months, and an installs-weighted Market Score of 42.
Active installations
779
Zip markets
22
Median cost
—
12-mo growth
▼ 3.0%
Installers active
53
County Market Score
Good · installs-weighted across 22 zips
Best zip in LaSalle County scores higher than 56% of U.S. zip markets.
Versus Illinois
How LaSalle County compares with the state
Installed cost
—
state median $6.56/W
Market score
42 vs 43
Illinois scores 43
Share of state installs
0.69%
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: 170–208 installs (midpoint 189)
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
LaSalle County by year
192 installs in the trailing twelve months vs 198 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in LaSalle County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 96 | 40 | 8 | — |
| 2 | FREEDOM FOREVER | 47 | 34 | 11 | — |
| 3 | LEGACY SOLAR | 20 | 16 | 9 | — |
| 4 | BRIGHT PLANET SOLAR | 11 | 11 | 6 | — |
| 5 | ICONIC ENERGY | 11 | 6 | 7 | — |
| 6 | TRON SOLAR | 11 | 3 | 5 | — |
| 7 | ADVANCED RENEWABLE CONCEPTS | 8 | 4 | 4 | — |
| 8 | LGCY POWER | 8 | 8 | 5 | — |
| 9 | CR SOLAR | 6 | 4 | 4 | — |
| 10 | HARVEST ENERGY SOLUTIONS | 5 | 1 | 3 | — |
| 11 | WOLFPACK ELECTRIC | 5 | 4 | 3 | — |
| 12 | REVOLUTION ENERGY SYSTEMS | 5 | 5 | 4 | — |
| 13 | RETHINK ELECTRIC | 4 | 2 | 3 | — |
| 14 | SPARC SOLAR | 4 | 4 | 3 | — |
| 15 | GREENGRIDS | 4 | 4 | 4 | — |
| 16 | ONE EARTH SOLAR | 3 | 1 | 3 | — |
| 17 | VOLT | 3 | 3 | 1 | — |
| 18 | TRUHOME PROS | 3 | 0 | 3 | — |
| 19 | INDEPENDENCE RENEWABLE ENERGY | 3 | 2 | 3 | — |
| 20 | ADT SOLAR | 2 | 2 | 1 | — |
| 21 | LOWRY ELECTRIC | 2 | 0 | 1 | — |
| 22 | GOODPWR | 2 | 2 | 2 | — |
| 23 | OFF GRID ENERGY SOLUTIONS | 2 | 2 | 2 | — |
| 24 | A M KERNS CONSTRUCTION | 2 | 0 | 2 | — |
| 25 | RADIANT SOLAR | 2 | 0 | 2 | — |
Zip markets
Zips in LaSalle County
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 61350 | 188 | — | 43 C |
| 61364 | 131 | — | 42 C |
| 61301 | 78 | — | 41 C |
| 61342 | 73 | — | 41 C |
| 61341 | 72 | — | 41 C |
| 60518 | 48 | — | 41 C |
| 60531 | 32 | — | 41 C |
| 61373 | 31 | — | 41 C |
| 61360 | 23 | — | 41 C |
| 61334 | 16 | — | 41 C |
| 61370 | 16 | — | 41 C |
| 61354 | 14 | — | 41 C |
| 61348 | 14 | — | 41 C |
| 60551 | 14 | — | 41 C |
| 61325 | 7 | — | 41 C |
| 61321 | 6 | — | 41 C |
| 60549 | 6 | — | 41 C |
| 60470 | 4 | — | 41 C |
| 61316 | 3 | — | 41 C |
| 60557 | 1 | — | 41 C |
| 61372 | 1 | — | 41 C |
| 61358 | 1 | — | 41 C |