Jamul, CA 91935 solar market data
Updated January 21, 2026 By The SolarDNA Data Team
Jamul 91935 has 2,013 solar installations at a median installed cost of $4.08/W, installations down 41.9% over the trailing twelve months, and a Market Score of 39 — higher than 30% of U.S. zip markets.
Versus California
How 91935 compares with the state
Installed cost
$0.18/W below
state median $4.26/W
Market score
39 vs 53
California scores 53
Share of state installs
0.09%
of 2.3M tracked statewide
Battery attach
15.4%
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: 37–49 installs (midpoint 43)
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
91935 by year
50 installs in the trailing twelve months vs 86 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 91935
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 182 | 2 | 7.49 | $4.64 |
| 2 | SEMPER SOLARIS | 167 | 0 | 7.45 | $4.31 |
| 3 | TESLA | 100 | 1 | 8.43 | $5.12 |
| 4 | BAKER ELECTRIC SOLAR | 99 | 0 | 9.15 | $3.98 |
| 5 | STELLAR SOLAR | 99 | 0 | 9.59 | $4.47 |
| 6 | SULLIVAN SOLAR POWER | 66 | 0 | 8.48 | $4.86 |
| 7 | SOLARTECH ENERGY SYSTEMS | 59 | 0 | 9.27 | $3.97 |
| 8 | ASI HEATING AIR | 35 | 0 | 9.24 | $3.84 |
| 9 | MINICH SONS CONSTRUCTION | 31 | 0 | 8.68 | $3.06 |
| 10 | HOME ENERGY SYSTEMS | 28 | 0 | 15.1 | $3.83 |
| 11 | SOLARE ENERGY | 26 | 0 | 7.54 | $4.06 |
| 12 | SUNGEVITY | 26 | 0 | 7.24 | $3.82 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 92019 El Cajon | 10.6 km | 5,676 | $4.09 | 50 |
| 91978 Spring Valley | 12.1 km | 1,135 | $4.22 | 44 |
| 91915 Chula Vista | 13.9 km | 3,565 | $4.21 | 42 |
| 91914 Chula Vista | 14.0 km | 2,730 | $4.21 | 51 |
| 92021 El Cajon | 14.1 km | 6,149 | $4.26 | 43 |
| 91901 Alpine | 14.4 km | 3,329 | $4.04 | 46 |
Equipment
What gets installed in 91935
Share of systems with a recorded brand
Modules
LG ELECTRONICS18.5%
SUNPOWER14.6%
QCELLS NORTH AMERICA11.6%
KYOCERA SOLAR5.0%
CSI SOLAR4.4%
Inverters
ENPHASE ENERGY34.0%
SOLAREDGE27.7%
SMA AMERICA14.0%
SUNPOWER8.2%
FRONIUS USA2.4%
Frequently asked
Quick answers about 91935
How many solar installations are there in 91935?
SolarDNA counts 2,013 active solar installations in Jamul 91935, 1,984 of them residential, with data through January 21, 2026.
How much does solar cost in 91935?
The median residential system in 91935 cost $4.08 per watt over the trailing twelve months, $0.18/W below the California median.
Is solar growing in 91935?
Installations in 91935 are down 41.9%: 50 in the trailing twelve months versus 86 before.
Who installs solar in 91935?
SUNRUN, SEMPER SOLARIS, TESLA lead the 298 installers with systems in 91935. The full comp set is above.
Is 91935 a good market for solar sales?
91935 scores 39 out of 100 (Good, higher than 30% of U.S. zip markets).