Smithtown, NY 11787 solar market data
Updated December 29, 2025Provisional score · under 500 installs By The SolarDNA Data Team
Smithtown 11787 has 485 solar installations at a median installed cost of $4.49/W, recent growth not yet measurable, and a Market Score of 48 — higher than 81% of U.S. zip markets.
Versus New York
How 11787 compares with the state
Installed cost
$0.33/W above
state median $4.16/W
Market score
48 vs 59
New York scores 59
Share of state installs
0.26%
of 187.3K tracked statewide
Battery attach
5.3%
state 2.1%
Statewide momentum
▲ 25.2%
residential solar added in New York, 12 months through Jul 2026
Statewide market
274.1K systems
6.4% of homes · utility-reported through Jul 2026
Growth & pricing
11787 by year
13 installs in the trailing twelve months vs 19 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 11787
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 63 | 0 | 8.31 | $5.25 |
| 2 | SUNATION SOLAR SYSTEMS | 59 | 0 | 10.79 | $3.83 |
| 3 | TESLA | 52 | 3 | 7.62 | $5.60 |
| 4 | LONG ISLAND POWER SOLUTIONS | 29 | 0 | 9.73 | $3.60 |
| 5 | LEVEL SOLAR | 27 | 0 | 8.41 | $5.10 |
| 6 | EMPOWER SOLAR | 23 | 2 | 10.98 | $3.69 |
| 7 | HARVEST POWER | 15 | 1 | 9.48 | $3.86 |
| 8 | NRG RESIDENTIAL SOLAR SOLUTIONS | 15 | 0 | 6.37 | $3.51 |
| 9 | NYSS | 15 | 0 | 7.81 | $4.04 |
| 10 | SUNPOWER | 15 | 0 | 9.93 | $5.10 |
| 11 | GREENLEAF SOLAR NY | 9 | 0 | 10.31 | $3.63 |
| 12 | GREEN LOGIC | 7 | 0 | 9.67 | $4.15 |
Equipment
What gets installed in 11787
Share of systems with a recorded brand
Modules
LG ELECTRONICS19.5%
SUNPOWER17.7%
REC GROUP10.1%
CSI SOLAR9.8%
TRINA SOLAR9.4%
Inverters
ENPHASE ENERGY38.1%
SOLAREDGE36.3%
ABB10.0%
SMA AMERICA8.2%
SUNPOWER2.1%
Frequently asked
Quick answers about 11787
How many solar installations are there in 11787?
SolarDNA counts 485 active solar installations in Smithtown 11787, 478 of them residential, with data through December 29, 2025.
How much does solar cost in 11787?
The median residential system in 11787 cost $4.49 per watt over the trailing twelve months, $0.33/W above the New York median.
Is solar growing in 11787?
Recent growth cannot be measured yet for 11787: too few recent installs (data runs through December 29, 2025).
Who installs solar in 11787?
SUNRUN, SUNATION SOLAR SYSTEMS, TESLA lead the 59 installers with systems in 11787. The full comp set is above.
Is 11787 a good market for solar sales?
11787 scores 48 out of 100 (Great, higher than 81% of U.S. zip markets). With under 500 installations the score is provisional.