Larkspur, CA 94939 solar market data
Updated May 11, 2026 By The SolarDNA Data Team
Larkspur 94939 has 661 solar installations at a median installed cost of $4.97/W, recent growth not yet measurable, and a Market Score of 38 — higher than 27% of U.S. zip markets.
Versus California
How 94939 compares with the state
Installed cost
$0.71/W above
state median $4.26/W
Market score
38 vs 53
California scores 53
Share of state installs
0.03%
of 2.3M tracked statewide
Battery attach
19.8%
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
94939 by year
47 installs in the trailing twelve months vs 36 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 94939
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 145 | 5 | 6.1 | $5.12 |
| 2 | SOLARCRAFT SERVICES | 45 | 8 | 7.08 | $5.30 |
| 3 | SUNRUN | 45 | 6 | 7.01 | $4.59 |
| 4 | SUN FIRST | 27 | 2 | 6.36 | $4.98 |
| 5 | NEXUS ENERGY SYSTEMS | 24 | 0 | 5.92 | $6.06 |
| 6 | SUNPOWER | 22 | 0 | 38.2 | $4.50 |
| 7 | PETERSENDEAN | 18 | 0 | 3.64 | $4.01 |
| 8 | SPG SOLAR | 16 | 0 | 4.45 | $7.47 |
| 9 | SEMPER SOLARIS | 14 | 1 | 5.92 | $5.61 |
| 10 | PAC SOLAR | 14 | 0 | 6.33 | $3.41 |
| 11 | BETTER EARTH | 13 | 0 | 8.73 | $4.96 |
| 12 | NORTHERN PACIFIC POWER | 13 | 0 | 8.99 | $4.69 |
Equipment
What gets installed in 94939
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA13.9%
SUNPOWER11.8%
SILFAB SOLAR8.0%
TESLA7.0%
CSI SOLAR6.8%
Inverters
ENPHASE ENERGY30.6%
SOLAREDGE21.1%
SUNPOWER10.9%
TESLA10.4%
FRONIUS USA7.4%
Frequently asked
Quick answers about 94939
How many solar installations are there in 94939?
SolarDNA counts 661 active solar installations in Larkspur 94939, 641 of them residential, with data through May 11, 2026.
How much does solar cost in 94939?
The median residential system in 94939 cost $4.97 per watt over the trailing twelve months, $0.71/W above the California median.
Is solar growing in 94939?
Recent growth cannot be measured yet for 94939: too few recent installs (data runs through May 11, 2026).
Who installs solar in 94939?
TESLA, SOLARCRAFT SERVICES, SUNRUN lead the 135 installers with systems in 94939. The full comp set is above.
Is 94939 a good market for solar sales?
94939 scores 38 out of 100 (Fair, higher than 27% of U.S. zip markets).