Baltimore County, MD solar installation & market data
Updated December 30, 2022Older data · growth withheld By The SolarDNA Data Team
Baltimore County has 790 solar installations across 36 zip codes at a median installed cost of $4.06/W, recent growth not yet measurable, and an installs-weighted Market Score of 49.
Active installations
790
Zip markets
36
Median cost
$4.06/W
12-mo growth
—
Installers active
0
County Market Score
Great · installs-weighted across 36 zips
Best zip in Baltimore County scores higher than 98% of U.S. zip markets.
Versus Maryland
How Baltimore County compares with the state
Installed cost
$0.35/W above
state median $3.71/W
Market score
49 vs 68
Maryland scores 68
Share of state installs
2.51%
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
Baltimore County by year
549 installs in the trailing twelve months vs 241 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Baltimore County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|
Zip markets
Zips in Baltimore County
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 21117 | 76 | $4.35 | 48 B |
| 21133 | 72 | $4.36 | 48 B |
| 21234 | 54 | $4.04 | 49 B |
| 21220 | 53 | $4.18 | 48 B |
| 21228 | 52 | $4.04 | 49 B |
| 21244 | 42 | $4.41 | 47 B |
| 21207 | 42 | $4.50 | 47 B |
| 21136 | 40 | $4.13 | 49 B |
| 21093 | 36 | $3.42 | 52 A |
| 21208 | 35 | $3.81 | 50 B |
| 21237 | 33 | $3.95 | 49 B |
| 21227 | 30 | $4.83 | 45 C |
| 21221 | 25 | $4.00 | 49 B |
| 21236 | 25 | $3.96 | 49 B |
| 21128 | 21 | $3.65 | 51 A |
| 21222 | 20 | $4.17 | 48 B |
| 21030 | 17 | $3.36 | 52 A |
| 21120 | 15 | $4.00 | 49 B |
| 21111 | 15 | $3.36 | 52 A |
| 21286 | 13 | $3.49 | 51 A |
| 21162 | 9 | $4.04 | 49 B |
| 21053 | 9 | $3.45 | 52 A |
| 21204 | 9 | $3.68 | 50 A |
| 21163 | 8 | $4.20 | 48 B |
| 21013 | 7 | $2.72 | 55 A |
| 21219 | 7 | $3.89 | 49 B |
| 21131 | 5 | $2.87 | 54 A |
| 21155 | 3 | $5.00 | 44 C |
| 21152 | 3 | $3.77 | 50 B |
| 21156 | 3 | $4.33 | 47 B |
| 21087 | 3 | $3.70 | 50 B |
| 21051 | 2 | $3.03 | 53 A |
| 21057 | 2 | $4.08 | 49 B |
| 21153 | 2 | $3.18 | 53 A |
| 21082 | 1 | $2.80 | 55 A |
| 21071 | 1 | $5.56 | 42 C |