Commercial Real Estate Market in Marathon, FL
Updated monthly: sale, lease, property records, location trend, and more… · Last update: September 30
110 active listings and 639 off-market properties in Marathon, FL. Commercial property asks $1,762/SF to buy and $24.87/SF/Yr to lease.
Market Trends
Marathon, FL spans 9.5 square miles in Monroe County, Florida. Figures below refresh monthly; last updated 30 September 2026.
Office
Office space in Marathon, FL asks $513/SF to buy. Vacancy runs 20.2% across the South region in 2025, up from 14.4% in 2019.
Average Sale Price $/SF
Listings
Vacancy Rate % in South region
Retail
Retail space in Marathon, FL asks $651/SF to buy. Vacancy runs 5.4% across the South region in 2025, down from 7% in 2020.
Average Sale Price $/SF
Listings
Vacancy Rate % in South region
Industrial
Industrial vacancy in Marathon, FL runs 7.9% across the South region in 2025, up from 6% in 2019. Nearly 2.3x the 2022 low of 3.5%.
Vacancy Rate % in South region
Multifamily
Multifamily space in Marathon, FL asks $723/SF to buy. Vacancy runs 11.3% across the South region in 2025, up from 8.5% in 2022.
Average Sale Price $/SF
Listings
Vacancy Rate % in South region
Zoning & Land Use
Land Use Mix share of zoned land by category
- Open space 46.5%
- Residential 32.5%
- Mixed use 11.7%
- Special 3.8%
- Industrial 1.1%
Largest Zones share of zoned land by district
Conservation Native Area
Residential Medium
Mixed Use
Public
Parks And Recreation
Marathon, FL zones 5,229 acres across 16 districts. The largest single district is Conservation Native Area at 40.6%. For commercial buyers the practical constraint is that only 1.1% of land carries a commercial or industrial designation.
Market overview
Demographics & Economy
Marathon, FL has 11,269 residents in 8,446 households. Density runs 1,184 people per square mile. Median household income here is $84,034 and median gross rent $1,628 a month.
11,269
Population
8,446
Households
1.3
Avg Household Size
51
Median Age
35%
College-Educated
91%
High-School Grad
9.5 sq mi
ZIP Area
1,184
Density / Sq Mi
$84,034
Median Household Income
$39,926
Median Earnings
$1,628
Median Rent
$714,657
Median Home Value
Tools
Frequently Asked Questions
What is the average price per square foot for commercial property in Marathon?
Commercial property in Marathon, FL asks an average of $1,762 per square foot. The 5 most recent recorded sales traded at a median of $581/SF, so asking sits 203% above the achieved median. Multifamily carries the highest asking price at $723/SF.
How much does it cost to lease commercial space in Marathon?
Asking lease rates in Marathon, FL average $24.87 per square foot per year.
What zoning applies to commercial property in Marathon?
Marathon, FL zones 5,229 acres across 16 districts, of which 0% is commercial and 1.1% industrial. The largest single district is Conservation Native Area at 40.6% of zoned land. Residential zoning covers 32.5% and open space 46.5%.
Where does Realmo's Marathon market data come from?
Realmo compiles Marathon, FL figures from 7 recent recorded sales, 92 active sale listings, 18 active lease listings, 639 tracked off-market properties, the current Marathon zoning release. Sale and lease figures refresh monthly; vacancy annually. Last updated 30 September 2026.
Methodology & data sources
- Asking prices and averages
- Computed from 92 active for-sale and 18 active for-lease listings in Marathon, FL. 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.
- Zoning and land use
- The current municipal zoning release: 5,229 zoned acres across 16 districts. Shares are of zoned land, so parcels the release leaves unclassified are excluded from the mix.
- Refresh
- The monthly aggregates close at the end of the previous month, so 30 September 2026 — not today — is the honest last update.
- Known limitations
- office vacancy is reported at South region level, retail vacancy is reported at South region level, industrial vacancy is reported at South region level and asking prices run materially above recent closed pricing.
- 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 30 September 2026 · report a data issue
