What are the best areas for solar in Maine?

The top-rated areas for solar in Maine are ZIP 04107 (score: 100/100), ZIP 04097 (score: 100/100), ZIP 04032 (score: 94/100). Rankings are based on walkability, median household income, population density, and existing competition.

What makes a good location for solar?

A strong location for solar combines high walkability (foot traffic), solid median income (spending power), sufficient population density, and manageable competition. Our opportunity score weighs all four factors on a 0–100 scale.

How does Maine compare to other states for solar?

Maine averages 86/100 across 20 scored ZIP codes — rated a excellent market. Scores factor in walkability, income, population, and competition.

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Best Cities for Solar Panel Costs in Maine

← Maine Overview

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

The top markets here average $102,073 in household income, with 16.0 existing solar installers per ZIP. ZIP 04107 leads at 100, $145,464 median income, zero existing solar installers.

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

Sort by:

#	ZIP Code	Score	Walkability	Median Income	Solar Installers
#1	ZIP 04107 Pop. 9.6 Thousand	100 Excellent	—	$145,464	0
#2	ZIP 04097 Pop. 4.2 Thousand	100 Excellent	—	$119,813	0
#3	ZIP 04032 Pop. 8.7 Thousand	94 Excellent	—	$108,864	0
#4	ZIP 04096 Pop. 9 Thousand	94 Excellent	—	$107,911	0
#5	ZIP 04496 Pop. 3.8 Thousand	90 Excellent	—	$103,938	0
#6	ZIP 04027 Pop. 6.6 Thousand	88 Excellent	—	$97,257	0
#7	ZIP 03908 Pop. 7.4 Thousand	88 Excellent	—	$97,927	0
#8	ZIP 04038 Pop. 18 Thousand	87 Excellent	—	$110,181	18
#9	ZIP 04222 Pop. 4.2 Thousand	86 Excellent	—	$96,492	0
#10	ZIP 04358 Pop. 4.5 Thousand	86 Excellent	—	$93,825	0
#11	ZIP 04469 Pop. 3.3 Thousand	84 Excellent	—	—	0
#12	ZIP 04071 Pop. 4.9 Thousand	82 Excellent	—	$86,932	0
#13	ZIP 04079 Pop. 4.1 Thousand	82 Excellent	—	$87,866	0
#14	ZIP 04364 Pop. 6.2 Thousand	80 Excellent	—	$82,858	0
#15	ZIP 04062 Pop. 19 Thousand	80 Excellent	—	$98,946	16
#16	ZIP 04072 Pop. 21 Thousand	80 Excellent	—	$84,328	20
#17	ZIP 04074 Pop. 23 Thousand	80 Excellent	—	$125,642	10
#18	ZIP 04579 Pop. 3.1 Thousand	80 Excellent	—	$103,482	0
#19	ZIP 04008 Pop. 3.1 Thousand	80 Excellent	—	$104,914	0
#20	ZIP 04578 Pop. 4.6 Thousand	80 Excellent	—	$82,750	0

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

What the Data Shows

Opportunity is spread across Maine, not locked in one metro. The top ZIPs average $102,073 in household income. The common thread: solar demand that outpaces supply. These markets have room.

How to Use This Table

Click any ZIP for a full breakdown: demographics, nearby competition, and walkability score. The opportunity score weights income, foot traffic, and competition equally. If your concept skews upscale, sort by Income. If lunch crowds matter more, sort by Walkability.

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