Commercial Real Estate Market in Deer Isle, ME
Updated monthly: sale, lease, property records, location trend, and more… · Last update: August 31
2 active listings and 51 off-market properties in Deer Isle, ME.
Market Trends
Deer Isle, ME spans 25.9 square miles in Hancock County, Maine. Figures below refresh monthly; last updated 31 August 2026.
Office
Office space in Deer Isle, ME asks $125/SF to buy. Vacancy runs 19.9% across the Northeast region in 2025, up from 13.1% in 2019.
Average Sale Price $/SF
Listings
Vacancy Rate % in Northeast region
Retail
Retail space in Deer Isle, ME asks $143/SF to buy. Vacancy runs 6% across the Northeast region in 2025, little changed from 6% in 2019. Down from a 2020 peak of 7.1%.
Average Sale Price $/SF
Listings
Vacancy Rate % in Northeast region
Industrial
Industrial vacancy in Deer Isle, ME runs 7.6% across the Northeast region in 2025, up from 5.4% in 2019. Nearly 2.4x the 2021 low of 3.2%.
Vacancy Rate % in Northeast region
Multifamily
Multifamily space in Deer Isle, ME asks $200/SF to buy. Vacancy runs 5.6% across the Northeast region in 2025, up from 4% in 2022.
Average Sale Price $/SF
Listings
Vacancy Rate % in Northeast region
Market overview
Demographics & Economy
Deer Isle, ME has 1,937 residents in 1,539 households. Density runs 75 people per square mile. Median household income here is $60,536 and median gross rent $1,179 a month.
1,937
Population
1,539
Households
1.3
Avg Household Size
53
Median Age
28%
College-Educated
89%
High-School Grad
25.9 sq mi
ZIP Area
75
Density / Sq Mi
$60,536
Median Household Income
$34,844
Median Earnings
$1,179
Median Rent
$266,100
Median Home Value
Tools
Nearby Markets
| Market | Average Sale Price, $/SF | Average Lease Price, $/SF/Yr |
|---|---|---|
| Brooklin | — | — |
| Sedgwick | — | — |
| Stonington | — | — |
| Brooksville | — | — |
Methodology & data sources
- Asking prices and averages
- Computed from 2 active for-sale and 0 active for-lease listings in Deer Isle, ME. These are ASKING figures from live listings, not closed-transaction prices, and a segment carried by a handful of listings reads as indicative rather than an average.
- Vacancy rates
- Published per-sector market series, taken at the metro level where one exists and otherwise at the Census-region level — a chart reading "in <region> region" is a regional number, not this city's.
- Refresh
- The monthly aggregates close at the end of the previous month, so 31 August 2026 — not today — is the honest last update.
- Known limitations
- office vacancy is reported at Northeast region level, retail vacancy is reported at Northeast region level and industrial vacancy is reported at Northeast region level.
- Coverage
- Metrics below the 10-observation threshold fall back one geographic level. The geography used is named on each figure.
Compiled by the Realmo Data team · reviewed 31 August 2026 · report a data issue
