Montgomery County, MD solar installation & market data
Updated December 20, 2024Older data · growth withheld By The SolarDNA Data Team
Montgomery County has 1,931 solar installations across 43 zip codes at a median installed cost of $3.13/W, recent growth not yet measurable, and an installs-weighted Market Score of 53.
Active installations
1,931
Zip markets
43
Median cost
$3.13/W
12-mo growth
—
Installers active
0
County Market Score
Excellent · installs-weighted across 43 zips
Best zip in Montgomery County scores higher than 99% of U.S. zip markets.
Versus Maryland
How Montgomery County compares with the state
Installed cost
$0.58/W below
state median $3.71/W
Market score
53 vs 68
Maryland scores 68
Share of state installs
6.14%
of 31.5K tracked statewide
Battery attach
0.0%
state 0.0%
Statewide momentum
▲ 35.7%
residential solar added in Maryland, 12 months through Jul 2026
Statewide market
127.7K systems
7.8% of homes · utility-reported through Jul 2026
Growth & pricing
Montgomery County by year
903 installs in the trailing twelve months vs 619 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Montgomery County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|
Zip markets
Zips in Montgomery County
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 20912 | 181 | $3.02 | 54 A |
| 20910 | 148 | $3.02 | 54 A |
| 20815 | 119 | $2.76 | 55 A |
| 20854 | 108 | $2.75 | 55 A |
| 20816 | 102 | $2.88 | 55 A |
| 20871 | 99 | $3.30 | 53 A |
| 20878 | 97 | $2.85 | 55 A |
| 20906 | 90 | $3.73 | 51 A |
| 20817 | 74 | $2.78 | 55 A |
| 20902 | 65 | $3.39 | 52 A |
| 20850 | 63 | $2.80 | 55 A |
| 20901 | 58 | $3.39 | 52 A |
| 20874 | 57 | $3.53 | 51 A |
| 20876 | 54 | $3.45 | 52 A |
| 20904 | 53 | $3.86 | 50 B |
| 20814 | 48 | $3.05 | 54 A |
| 20832 | 45 | $2.80 | 55 A |
| 20882 | 40 | $3.24 | 53 A |
| 20879 | 39 | $3.75 | 50 B |
| 20852 | 38 | $2.60 | 56 A |
| 20853 | 31 | $3.00 | 54 A |
| 20895 | 31 | $2.60 | 56 A |
| 20886 | 30 | $3.97 | 49 B |
| 20855 | 29 | $2.76 | 55 A |
| 20866 | 29 | $3.35 | 52 A |
| 20905 | 29 | $3.40 | 52 A |
| 20841 | 28 | $3.23 | 53 A |
| 20851 | 27 | $3.23 | 53 A |
| 20877 | 26 | $3.88 | 50 B |
| 20833 | 19 | $3.11 | 53 A |
| 20872 | 17 | $3.35 | 52 A |
| 20903 | 13 | $4.08 | 49 B |
| 20837 | 13 | $3.12 | 53 A |
| 20861 | 7 | $3.25 | 52 A |
| 20818 | 7 | $3.30 | 52 A |
| 20842 | 5 | $2.41 | 56 A |
| 20860 | 3 | $2.86 | 54 A |
| 20838 | 2 | $2.75 | 55 A |
| 20862 | 2 | $2.26 | 57 A |
| 20896 | 2 | $2.68 | 55 A |
| 20839 | 1 | $2.51 | 56 A |
| 20868 | 1 | $3.36 | 52 A |
| 20897 | 1 | $2.49 | 56 A |