Downey, CA 90242 solar market data
Updated May 20, 2026 By The SolarDNA Data Team
Downey 90242 has 909 solar installations at a median installed cost of $4.65/W, installations up 20.9% over the trailing twelve months, and a Market Score of 46 — higher than 73% of U.S. zip markets.
Versus California
How 90242 compares with the state
Installed cost
$0.38/W above
state median $4.26/W
Market score
46 vs 53
California scores 53
Share of state installs
0.04%
of 2.3M tracked statewide
Battery attach
20.7%
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: 80–98 installs (midpoint 89)
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
90242 by year
81 installs in the trailing twelve months vs 67 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 90242
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 127 | 13 | 6.85 | $4.21 |
| 2 | TESLA | 121 | 5 | 6.15 | $5.12 |
| 3 | FREEDOM FOREVER | 33 | 3 | 7.72 | $5.06 |
| 4 | SKYLINE SMART ENERGY | 28 | 7 | 7.75 | $5.61 |
| 5 | ESP CONTRACTING | 24 | 0 | 5.17 | $5.10 |
| 6 | PGS SOLAR AND SMART HOMES | 24 | 0 | 8.02 | $4.38 |
| 7 | VERENGO | 24 | 0 | 6.12 | $3.81 |
| 8 | BRIGHT OPS | 16 | 3 | 6.62 | $4.38 |
| 9 | TITANIUM SOLAR | 15 | 0 | 6.76 | $6.00 |
| 10 | SOUTH WEST BUILDERS | 13 | 5 | 6.53 | $6.00 |
| 11 | SEMPER SOLARIS | 13 | 1 | 6.55 | $4.14 |
| 12 | ZERO ENERGY ASSOCIATES | 13 | 0 | 3.01 | $10.11 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 90241 Downey | 2.3 km | 1,025 | $4.25 | 45 |
| 90723 Paramount | 3.5 km | 540 | $4.74 | 47 |
| 90706 Bellflower | 4.1 km | 1,612 | $4.55 | 47 |
| 90240 Downey | 4.5 km | 967 | $4.02 | 57 |
| 90201 Bell Gardens | 5.0 km | 493 | $5.12 | 49 |
| 90650 Norwalk | 5.6 km | 2,591 | $4.76 | 44 |
Same city
Other zips in Downey
Equipment
What gets installed in 90242
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA21.8%
CSI SOLAR10.8%
REC GROUP6.0%
TRINA SOLAR5.2%
SUNPOWER4.6%
Inverters
SOLAREDGE37.4%
ENPHASE ENERGY35.9%
ABB6.6%
TESLA5.8%
SMA AMERICA3.6%
Frequently asked
Quick answers about 90242
How many solar installations are there in 90242?
SolarDNA counts 909 active solar installations in Downey 90242, 885 of them residential, with data through May 20, 2026.
How much does solar cost in 90242?
The median residential system in 90242 cost $4.65 per watt over the trailing twelve months, $0.38/W above the California median.
Is solar growing in 90242?
Installations in 90242 are up 20.9%: 81 in the trailing twelve months versus 67 before.
Who installs solar in 90242?
SUNRUN, TESLA, FREEDOM FOREVER lead the 227 installers with systems in 90242. The full comp set is above.
Is 90242 a good market for solar sales?
90242 scores 46 out of 100 (Great, higher than 73% of U.S. zip markets).