Mercer Island, WA solar installation & market data
Updated June 10, 2019Older data · growth withheldProvisional score · under 500 installs By The SolarDNA Data Team
Mercer Island has 68 solar installations across 1 zip code at a median installed cost of $3.05/W, recent growth not yet measurable, and an installs-weighted Market Score of 46.
Active installations
68
Zip markets
1
Median cost
$3.05/W
12-mo growth
—
Installers active
0
City Market Score
Great · installs-weighted across 1 zips
Best zip in Mercer Island scores higher than 70% of U.S. zip markets.
Versus Washington
How Mercer Island compares with the state
Installed cost
$0.40/W below
state median $3.45/W
Market score
46 vs 39
Washington scores 39
Share of state installs
0.91%
of 7.4K tracked statewide
Battery attach
0.0%
state 0.0%
Statewide momentum
▼ 13.4%
residential solar added in Washington, 12 months through Jul 2026
Statewide market
61.6K systems
3.1% of homes · utility-reported through Jul 2026
Growth & pricing
Mercer Island by year
62 installs in the trailing twelve months vs 5 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Mercer Island
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|
Zip markets
Zips in Mercer Island
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 98040 | 68 | $3.05 | 46 B |