Loudoun County, VA solar installation & market data
Updated April 29, 2024Older data · growth withheldProvisional score · under 500 installs By The SolarDNA Data Team
Loudoun County has 326 solar installations across 18 zip codes at a median installed cost of $4.08/W, recent growth not yet measurable, and an installs-weighted Market Score of 44.
Active installations
326
Zip markets
18
Median cost
$4.08/W
12-mo growth
—
Installers active
0
County Market Score
Good · installs-weighted across 18 zips
Best zip in Loudoun County scores higher than 66% of U.S. zip markets.
Versus Virginia
How Loudoun County compares with the state
Installed cost
—
state median —/W
Market score
44 vs 56
Virginia scores 56
Share of state installs
4.40%
of 7.4K tracked statewide
Battery attach
0.0%
state 0.0%
Statewide momentum
▲ 35.5%
residential solar added in Virginia, 12 months through Jul 2026
Statewide market
74.2K systems
3.3% of homes · utility-reported through Jul 2026
Growth & pricing
Loudoun County by year
134 installs in the trailing twelve months vs 47 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Loudoun County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|
Zip markets
Zips in Loudoun County
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 20176 | 45 | — | 44 C |
| 20164 | 43 | — | 44 C |
| 20147 | 42 | $4.08 | 45 C |
| 20148 | 40 | — | 44 C |
| 20132 | 31 | — | 44 C |
| 20165 | 27 | — | 44 C |
| 20175 | 17 | — | 44 C |
| 20141 | 15 | — | 44 C |
| 20158 | 15 | — | 44 C |
| 20180 | 13 | — | 44 C |
| 20117 | 11 | — | 44 C |
| 20135 | 8 | — | 44 C |
| 20166 | 6 | — | 44 C |
| 20197 | 5 | — | 44 C |
| 20129 | 3 | — | 44 C |
| 20152 | 2 | — | 44 C |
| 20105 | 2 | — | 44 C |
| 20118 | 1 | — | 43 C |