Westminster, MD 21157 solar market data
Updated December 20, 2022Older data · growth withheldProvisional score · under 500 installs By The SolarDNA Data Team
Westminster 21157 has 49 solar installations at a median installed cost of $3.61/W, recent growth not yet measurable, and a Market Score of 51 — higher than 92% of U.S. zip markets.
Zip Market Score
Excellent · higher than 92% of zips
Versus Maryland
How 21157 compares with the state
Installed cost
$0.10/W below
state median $3.71/W
Market score
51 vs 68
Maryland scores 68
Share of state installs
0.16%
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
21157 by year
27 installs in the trailing twelve months vs 22 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 21157
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| No installer has recorded systems here yet. | |||||
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 21158 Westminster | 6.3 km | 32 | $3.96 | 49 |
| 21048 Finksburg | 9.4 km | 11 | $3.78 | 50 |
| 21074 Hampstead | 11.4 km | 16 | $3.46 | 52 |
| 21784 Sykesville | 12.0 km | 47 | $3.66 | 51 |
| 21791 Union Bridge | 13.1 km | 7 | $2.87 | 54 |
| 21102 Manchester | 14.4 km | 18 | $4.49 | 47 |
Same city
Other zips in Westminster
Frequently asked
Quick answers about 21157
How many solar installations are there in 21157?
SolarDNA counts 49 active solar installations in Westminster 21157, 48 of them residential, with data through December 20, 2022.
How much does solar cost in 21157?
The median residential system in 21157 cost $3.61 per watt over the trailing twelve months, $0.10/W below the Maryland median.
Is solar growing in 21157?
Recent growth cannot be measured yet for 21157: insufficient recent data (data runs through December 20, 2022).
Who installs solar in 21157?
No installer has enough recorded systems in 21157 to rank yet.
Is 21157 a good market for solar sales?
21157 scores 51 out of 100 (Excellent, higher than 92% of U.S. zip markets). With under 500 installations the score is provisional.