Oak Park, CA 91377 solar market data
Updated May 14, 2026 By The SolarDNA Data Team
Oak Park 91377 has 918 solar installations at a median installed cost of $4.06/W, installations up 55.4% over the trailing twelve months, and a Market Score of 56 — higher than 98% of U.S. zip markets.
Zip Market Score
Excellent · higher than 98% of zips
Versus California
How 91377 compares with the state
Installed cost
$0.20/W below
state median $4.26/W
Market score
56 vs 53
California scores 53
Share of state installs
0.04%
of 2.3M tracked statewide
Battery attach
32.6%
state 12.7%
Statewide momentum
▲ 1.1%
residential solar added in California, 12 months through Jul 2026
Statewide market
2.3M systems
30.9% of homes · utility-reported through Jul 2026
Next-12-month outlook: 85–115 installs (midpoint 100)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±15% band. Not a forecast of permits or policy.
Growth & pricing
91377 by year
87 installs in the trailing twelve months vs 56 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 91377
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 148 | 24 | 8.95 | $4.15 |
| 2 | TESLA | 146 | 7 | 8.41 | $3.85 |
| 3 | QUANTUM SOLAR DESIGNS | 35 | 3 | 7.63 | $3.69 |
| 4 | SUNPOWER | 35 | 0 | 9.59 | $4.96 |
| 5 | SOLAR OPTIMUM DESIGN ELECTRIC | 26 | 0 | 10 | $2.90 |
| 6 | VERENGO | 22 | 0 | 6.19 | $4.86 |
| 7 | REPOWER LIVERMORE | 19 | 0 | 7.76 | $4.84 |
| 8 | REC SOLAR COMMERCIAL | 18 | 0 | 7.52 | $4.64 |
| 9 | GREEN CONVERGENCE | 17 | 1 | 8.47 | $4.95 |
| 10 | SEMPER SOLARIS | 15 | 0 | 8.05 | $3.92 |
| 11 | FREEDOM FOREVER | 14 | 4 | 10.3 | $5.33 |
| 12 | LA SOLAR GROUP | 14 | 0 | 8.18 | $3.29 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 91362 Thousand Oaks | 5.3 km | 2,352 | $4.22 | 61 |
| 91301 Agoura Hills | 7.0 km | 1,938 | $4.15 | 61 |
| 91361 Westlake Village | 7.8 km | 1,223 | $4.26 | 57 |
| 93065 Simi Valley | 9.0 km | 6,114 | $4.22 | 61 |
| 93062 Simi Valley | 9.5 km | 31 | $4.81 | 36 |
| 91360 Thousand Oaks | 10.2 km | 3,184 | $4.46 | 60 |
Equipment
What gets installed in 91377
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA20.2%
TESLA9.6%
SUNPOWER8.4%
REC GROUP6.7%
LG ELECTRONICS6.6%
Inverters
ENPHASE ENERGY31.5%
SOLAREDGE26.8%
TESLA10.0%
SMA AMERICA8.1%
SUNPOWER7.0%
Frequently asked
Quick answers about 91377
How many solar installations are there in 91377?
SolarDNA counts 918 active solar installations in Oak Park 91377, 909 of them residential, with data through May 14, 2026.
How much does solar cost in 91377?
The median residential system in 91377 cost $4.06 per watt over the trailing twelve months, $0.20/W below the California median.
Is solar growing in 91377?
Installations in 91377 are up 55.4%: 87 in the trailing twelve months versus 56 before.
Who installs solar in 91377?
SUNRUN, TESLA, QUANTUM SOLAR DESIGNS lead the 188 installers with systems in 91377. The full comp set is above.
Is 91377 a good market for solar sales?
91377 scores 56 out of 100 (Excellent, higher than 98% of U.S. zip markets).