Mill Valley, CA 94941 solar market data
Updated April 16, 2026 By The SolarDNA Data Team
Mill Valley 94941 has 2,535 solar installations at a median installed cost of $5.12/W, installations up 18.3% over the trailing twelve months, and a Market Score of 49 — higher than 84% of U.S. zip markets.
Versus California
How 94941 compares with the state
Installed cost
$0.86/W above
state median $4.26/W
Market score
49 vs 53
California scores 53
Share of state installs
0.11%
of 2.3M tracked statewide
Battery attach
20.0%
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: 140–171 installs (midpoint 155)
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
94941 by year
142 installs in the trailing twelve months vs 120 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 94941
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 525 | 8 | 6.35 | $5.10 |
| 2 | SUN FIRST | 208 | 8 | 6.04 | $5.76 |
| 3 | SOLARCRAFT SERVICES | 180 | 20 | 6.88 | $5.37 |
| 4 | SUNRUN | 116 | 13 | 6.44 | $4.88 |
| 5 | SUNPOWER | 75 | 4 | 6.67 | $4.89 |
| 6 | PAC SOLAR | 71 | 0 | 6.47 | $3.16 |
| 7 | SPG SOLAR | 64 | 0 | 6 | $7.45 |
| 8 | SEMPER SOLARIS | 61 | 0 | 6.23 | $6.37 |
| 9 | RGS ENERGY | 55 | 0 | 4.46 | $7.80 |
| 10 | ROCKIN ROOFERS | 42 | 7 | 7.01 | $4.43 |
| 11 | AMERICAN SOLAR | 42 | 0 | 7.48 | $6.27 |
| 12 | NORTHERN PACIFIC POWER | 41 | 0 | 6.99 | $4.49 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 94925 Corte Madera | 3.5 km | 736 | $5.10 | 40 |
| 94939 Larkspur | 4.6 km | 661 | $4.97 | 38 |
| 94965 Sausalito | 5.3 km | 497 | $5.18 | 37 |
| 94904 Greenbrae | 5.8 km | 974 | $5.10 | 52 |
| 94920 Belvedere Tiburon | 6.3 km | 1,246 | $5.12 | 50 |
| 94957 Ross | 7.6 km | 243 | $4.94 | 36 |
Same city
Other zips in Mill Valley
Equipment
What gets installed in 94941
Share of systems with a recorded brand
Modules
SUNPOWER15.7%
QCELLS NORTH AMERICA12.8%
SILFAB SOLAR8.2%
TESLA7.2%
LG ELECTRONICS6.5%
Inverters
ENPHASE ENERGY32.6%
SOLAREDGE18.6%
SUNPOWER12.7%
SMA AMERICA9.4%
TESLA7.2%
Frequently asked
Quick answers about 94941
How many solar installations are there in 94941?
SolarDNA counts 2,535 active solar installations in Mill Valley 94941, 2,502 of them residential, with data through April 16, 2026.
How much does solar cost in 94941?
The median residential system in 94941 cost $5.12 per watt over the trailing twelve months, $0.86/W above the California median.
Is solar growing in 94941?
Installations in 94941 are up 18.3%: 142 in the trailing twelve months versus 120 before.
Who installs solar in 94941?
TESLA, SUN FIRST, SOLARCRAFT SERVICES lead the 287 installers with systems in 94941. The full comp set is above.
Is 94941 a good market for solar sales?
94941 scores 49 out of 100 (Great, higher than 84% of U.S. zip markets).