Downey, CA 90240 solar market data
Updated May 6, 2026 By The SolarDNA Data Team
Downey 90240 has 967 solar installations at a median installed cost of $4.02/W, installations up 67.9% over the trailing twelve months, and a Market Score of 57 — higher than 99% of U.S. zip markets.
Zip Market Score
Excellent · higher than 99% of zips
Versus California
How 90240 compares with the state
Installed cost
$0.24/W below
state median $4.26/W
Market score
57 vs 53
California scores 53
Share of state installs
0.04%
of 2.3M tracked statewide
Battery attach
20.3%
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: 87–117 installs (midpoint 102)
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
90240 by year
89 installs in the trailing twelve months vs 53 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 90240
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 163 | 34 | 7.01 | $4.30 |
| 2 | TESLA | 123 | 1 | 8.71 | $4.91 |
| 3 | SUNPOWER | 66 | 0 | 3.38 | $3.70 |
| 4 | PGS SOLAR AND SMART HOMES | 31 | 0 | 8.72 | $3.46 |
| 5 | FREEDOM FOREVER | 25 | 4 | 8.35 | $3.64 |
| 6 | VERENGO | 24 | 0 | 5.64 | $3.88 |
| 7 | ESP CONTRACTING | 18 | 0 | 7.13 | $4.14 |
| 8 | SKYLINE SMART ENERGY | 17 | 7 | 8.68 | $5.63 |
| 9 | BRIGHT OPS | 17 | 5 | 6.75 | $4.80 |
| 10 | PETERSENDEAN | 17 | 0 | 5.84 | $3.74 |
| 11 | SUNGEVITY | 14 | 0 | 6.15 | $4.21 |
| 12 | SOLARMAX | 11 | 0 | 7.71 | $3.57 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 90241 Downey | 2.2 km | 1,025 | $4.25 | 45 |
| 90201 Bell Gardens | 3.2 km | 493 | $5.12 | 49 |
| 90670 Santa Fe Springs | 3.4 km | 885 | $5.14 | 41 |
| 90660 Pico Rivera | 4.3 km | 1,576 | $4.58 | 50 |
| 90242 Downey | 4.5 km | 909 | $4.65 | 46 |
| 90040 Los Angeles | 4.9 km | 204 | $4.11 | 40 |
Same city
Other zips in Downey
Equipment
What gets installed in 90240
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA19.8%
SUNPOWER11.0%
CSI SOLAR7.1%
REC GROUP5.4%
TRINA SOLAR5.2%
Inverters
ENPHASE ENERGY34.8%
SOLAREDGE33.8%
POWER-ONE8.3%
TESLA5.0%
SUNPOWER4.4%
Frequently asked
Quick answers about 90240
How many solar installations are there in 90240?
SolarDNA counts 967 active solar installations in Downey 90240, 962 of them residential, with data through May 6, 2026.
How much does solar cost in 90240?
The median residential system in 90240 cost $4.02 per watt over the trailing twelve months, $0.24/W below the California median.
Is solar growing in 90240?
Installations in 90240 are up 67.9%: 89 in the trailing twelve months versus 53 before.
Who installs solar in 90240?
SUNRUN, TESLA, SUNPOWER lead the 225 installers with systems in 90240. The full comp set is above.
Is 90240 a good market for solar sales?
90240 scores 57 out of 100 (Excellent, higher than 99% of U.S. zip markets).