Whittier, CA 90601 solar market data
Updated April 29, 2026 By The SolarDNA Data Team
Whittier 90601 has 1,053 solar installations at a median installed cost of $4.41/W, installations up 22.9% over the trailing twelve months, and a Market Score of 49 — higher than 83% of U.S. zip markets.
Versus California
How 90601 compares with the state
Installed cost
$0.14/W above
state median $4.26/W
Market score
49 vs 53
California scores 53
Share of state installs
0.05%
of 2.3M tracked statewide
Battery attach
19.3%
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: 85–107 installs (midpoint 96)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±11% band. Not a forecast of permits or policy.
Growth & pricing
90601 by year
86 installs in the trailing twelve months vs 70 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 90601
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 104 | 4 | 10.61 | $4.97 |
| 2 | SUNRUN | 96 | 13 | 6.81 | $4.16 |
| 3 | SUNPOWER | 68 | 0 | 6.36 | $4.43 |
| 4 | FREEDOM FOREVER | 44 | 7 | 8.19 | $4.64 |
| 5 | BRIGHT OPS | 32 | 6 | 7.05 | $4.44 |
| 6 | ESP CONTRACTING | 26 | 0 | 5.86 | $4.84 |
| 7 | VERENGO | 26 | 0 | 5.96 | $4.30 |
| 8 | PETERSENDEAN | 23 | 0 | 4.63 | $3.06 |
| 9 | SOLAR OPTIMUM DESIGN ELECTRIC | 18 | 0 | 7.9 | $2.99 |
| 10 | V3 ELECTRIC | 17 | 10 | 6.62 | $6.46 |
| 11 | COMPLETE SOLAR | 16 | 1 | 6.21 | $4.84 |
| 12 | SKYLINE SMART ENERGY | 15 | 3 | 7.4 | $6.29 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 90602 Whittier | 3.5 km | 914 | $4.25 | 43 |
| 90606 Whittier | 3.7 km | 826 | $4.59 | 41 |
| 90660 Pico Rivera | 4.9 km | 1,576 | $4.58 | 50 |
| 91733 South El Monte | 6.1 km | 833 | $4.17 | 55 |
| 91745 Hacienda Heights | 6.6 km | 2,453 | $4.31 | 49 |
| 90605 Whittier | 6.7 km | 1,249 | $4.63 | 47 |
Same city
Other zips in Whittier
Equipment
What gets installed in 90601
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA20.1%
SUNPOWER9.3%
CSI SOLAR8.1%
REC GROUP4.9%
TRINA SOLAR4.5%
Inverters
ENPHASE ENERGY40.5%
SOLAREDGE29.4%
SUNPOWER6.3%
TESLA4.2%
POWER-ONE4.1%
Frequently asked
Quick answers about 90601
How many solar installations are there in 90601?
SolarDNA counts 1,053 active solar installations in Whittier 90601, 1,031 of them residential, with data through April 29, 2026.
How much does solar cost in 90601?
The median residential system in 90601 cost $4.41 per watt over the trailing twelve months, $0.14/W above the California median.
Is solar growing in 90601?
Installations in 90601 are up 22.9%: 86 in the trailing twelve months versus 70 before.
Who installs solar in 90601?
TESLA, SUNRUN, SUNPOWER lead the 254 installers with systems in 90601. The full comp set is above.
Is 90601 a good market for solar sales?
90601 scores 49 out of 100 (Great, higher than 83% of U.S. zip markets).