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Best Cities for Solar in Maryland

Top 20 ZIP codes ranked by opportunity score. Score combines walkability (foot traffic), population density, median income, and food truck competition.

80–100 Excellent 60–79 Good 40–59 Fair <40 Challenging

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#	ZIP Code	Score	Walkability	Median Income
#1	ZIP 20837 Pop. 6.6 Thousand	100 Excellent	—	$191,927
#2	ZIP 21252 Pop. 4.7 Thousand	100 Excellent	—	—
#3	ZIP 20616 Pop. 7.4 Thousand	100 Excellent	—	$129,188
#4	ZIP 20637 Pop. 6.3 Thousand	100 Excellent	—	$149,821
#5	ZIP 21057 Pop. 4.5 Thousand	100 Excellent	—	$170,417
#6	ZIP 20742 Pop. 4.3 Thousand	100 Excellent	—	—
#7	ZIP 21104 Pop. 5.8 Thousand	100 Excellent	—	$199,803
#8	ZIP 21054 Pop. 15 Thousand	100 Excellent	—	$153,976
#9	ZIP 21710 Pop. 4.9 Thousand	100 Excellent	—	$164,727
#10	ZIP 21111 Pop. 4.7 Thousand	100 Excellent	—	$135,781
#11	ZIP 21029 Pop. 14 Thousand	100 Excellent	—	$250,001
#12	ZIP 20634 Pop. 7 Thousand	98 Excellent	—	$117,431
#13	ZIP 20619 Pop. 15 Thousand	98 Excellent	—	$114,848
#14	ZIP 21901 Pop. 20 Thousand	96 Excellent	—	$113,107
#15	ZIP 21919 Pop. 3.6 Thousand	94 Excellent	—	$115,152
#16	ZIP 20814 Pop. 31 Thousand	92 Excellent	15.4 /20	$150,401
#17	ZIP 20815 Pop. 31 Thousand	92 Excellent	14.9 /20	$198,243
#18	ZIP 20776 Pop. 3.4 Thousand	92 Excellent	—	$122,440
#19	ZIP 20676 Pop. 3.4 Thousand	92 Excellent	—	$150,916
#20	ZIP 21716 Pop. 6.8 Thousand	92 Excellent	—	$107,188

Data updated March 2026. Sources: Census Bureau ACS 2023, USDA National Walkability Index 2021, County Business Patterns 2022.

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