Whittier, CA 90602 solar market data
Updated April 20, 2026 By The SolarDNA Data Team
Whittier 90602 has 914 solar installations at a median installed cost of $4.25/W, recent growth not yet measurable, and a Market Score of 43 — higher than 56% of U.S. zip markets.
Versus California
How 90602 compares with the state
Installed cost
$0.01/W below
state median $4.26/W
Market score
43 vs 53
California scores 53
Share of state installs
0.04%
of 2.3M tracked statewide
Battery attach
10.2%
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
Growth & pricing
90602 by year
35 installs in the trailing twelve months vs 39 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 90602
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNPOWER | 278 | 0 | 3.55 | $4.25 |
| 2 | SUNNOVA ENERGY | 74 | 0 | 3.06 | $3.80 |
| 3 | TESLA | 70 | 0 | 7.1 | $5.12 |
| 4 | SUNRUN | 64 | 8 | 7.35 | $4.17 |
| 5 | SUNSTREET ENERGY GROUP | 43 | 0 | 3.04 | $3.20 |
| 6 | BRIGHT OPS | 16 | 2 | 9.11 | $4.15 |
| 7 | FREEDOM FOREVER | 16 | 0 | 7.67 | $4.13 |
| 8 | PETERSENDEAN | 10 | 0 | 7.37 | $3.96 |
| 9 | SEMPER SOLARIS | 10 | 0 | 8.22 | $4.58 |
| 10 | VERENGO | 10 | 0 | 6.03 | $4.16 |
| 11 | CLEAN INITIATIVE | 9 | 0 | 6.68 | $4.38 |
| 12 | ESP CONTRACTING | 8 | 0 | 5.07 | $4.73 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 90606 Whittier | 3.1 km | 826 | $4.59 | 41 |
| 90605 Whittier | 3.1 km | 1,249 | $4.63 | 47 |
| 90601 Whittier | 3.5 km | 1,053 | $4.41 | 49 |
| 90603 Whittier | 4.8 km | 1,019 | $4.41 | 50 |
| 90604 Whittier | 4.8 km | 1,444 | $4.68 | 46 |
| 90670 Santa Fe Springs | 5.3 km | 885 | $5.14 | 41 |
Same city
Other zips in Whittier
Equipment
What gets installed in 90602
Share of systems with a recorded brand
Modules
SUNPOWER34.6%
LG ELECTRONICS16.0%
QCELLS NORTH AMERICA12.4%
CSI SOLAR3.7%
KYOCERA SOLAR3.2%
Inverters
SOLAREDGE33.2%
SUNPOWER32.1%
ENPHASE ENERGY22.0%
ABB3.4%
SMA AMERICA2.2%
Frequently asked
Quick answers about 90602
How many solar installations are there in 90602?
SolarDNA counts 914 active solar installations in Whittier 90602, 907 of them residential, with data through April 20, 2026.
How much does solar cost in 90602?
The median residential system in 90602 cost $4.25 per watt over the trailing twelve months, $0.01/W below the California median.
Is solar growing in 90602?
Recent growth cannot be measured yet for 90602: too few recent installs (data runs through April 20, 2026).
Who installs solar in 90602?
SUNPOWER, SUNNOVA ENERGY, TESLA lead the 184 installers with systems in 90602. The full comp set is above.
Is 90602 a good market for solar sales?
90602 scores 43 out of 100 (Good, higher than 56% of U.S. zip markets).