Mariposa County, CA solar installation & market data
Updated May 20, 2026 By The SolarDNA Data Team
Mariposa County has 1,421 solar installations across 7 zip codes at a median installed cost of $4.03/W, installations up 21.4% over the trailing twelve months, and an installs-weighted Market Score of 43.
Active installations
1,421
Zip markets
7
Median cost
$4.03/W
12-mo growth
▲ 21.4%
Installers active
219
County Market Score
Good · installs-weighted across 7 zips
Best zip in Mariposa County scores higher than 66% of U.S. zip markets.
Versus California
How Mariposa County compares with the state
Installed cost
$0.24/W below
state median $4.26/W
Market score
43 vs 53
California scores 53
Share of state installs
0.06%
of 2.3M tracked statewide
Battery attach
15.6%
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: 140–174 installs (midpoint 157)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±11% band. Not a forecast of permits or policy.
Growth & pricing
Mariposa County by year
142 installs in the trailing twelve months vs 117 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Mariposa County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 165 | 36 | 3 | $4.41 |
| 2 | OFFLINE SOLAR | 159 | 0 | 6 | $3.82 |
| 3 | TESLA | 94 | 2 | 4 | $5.10 |
| 4 | ALTERNATIVE POWER GENERATION | 67 | 0 | 5 | $3.71 |
| 5 | NATURAL ENVIRONMENTS | 43 | 9 | 4 | $3.47 |
| 6 | SBREGA ELECTRIC | 37 | 8 | 3 | $4.86 |
| 7 | FREEDOM FOREVER | 30 | 1 | 5 | $5.40 |
| 8 | QUALITY HOME SERVICES | 30 | 0 | 3 | $4.19 |
| 9 | RT MAHER CONSTRUCTION | 27 | 0 | 3 | $2.88 |
| 10 | SOLAR NEGOTIATORS | 26 | 2 | 2 | $4.22 |
| 11 | PETERSENDEAN | 25 | 0 | 4 | $3.71 |
| 12 | GCI SOLAR | 25 | 0 | 5 | $3.05 |
| 13 | SEMPER SOLARIS | 23 | 2 | 5 | $6.60 |
| 14 | BRIGHT OPS | 23 | 16 | 5 | $4.60 |
| 15 | EVANS ENERGY | 17 | 0 | 3 | $2.58 |
| 16 | SUNLECTRIC | 17 | 0 | 2 | $3.87 |
| 17 | CLEAR SOLAR | 17 | 0 | 3 | $4.34 |
| 18 | INFINITY ENERGY | 16 | 0 | 4 | $4.99 |
| 19 | ACRO ENERGY | 16 | 0 | 3 | $6.77 |
| 20 | GOLD RUSH ENERGY SOLUTIONS | 14 | 0 | 2 | $3.99 |
| 21 | SUNGEVITY | 13 | 0 | 4 | $3.93 |
| 22 | MOUNTAIN AIRE HEATING AND AC | 12 | 0 | 2 | $2.70 |
| 23 | KUYKENDALL SOLAR | 10 | 0 | 1 | $3.91 |
| 24 | SQ ELECTRIC CONSTRUCTION | 9 | 0 | 1 | $3.13 |
| 25 | DICK DONALD P AIR CONDITIONING | 9 | 6 | 2 | $2.88 |