Real Estate Investing in Marathon, Florida

Everything the listing leaves out — vacancy, rent trend, cap rate, landlord climate. All free.

1 ZIP codes • Population: 10,586 • Monroe County

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Should you buy in Marathon, FL? Our answer, based on the numbers below.

🏠 For Homebuyers
CAUTION
Grade D (47/100)

Proceed carefully. Weak appreciation or affordability makes this a harder case for most buyers.

📈 For Investors
MIXED
3.0 / 5 (52/100)

A middle-of-the-road market. Workable, but the best opportunities may be nearby ZIPs rather than this one.

⚠️ Risks to Know
1 flag
  • High vacancy: 40.9% of homes vacant — above national norms.

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3.0/ 5

Investability

Citywide average

3.0/ 5

Appreciation

5.1% 5yr CAGR

5.0/ 5

Landlord Climate

Regulatory friendliness

🏦 30-yr Fixed Rate: 6.76% as of Sep 10 Source: Freddie Mac PMMS
Avg Investability
Avg Home Value $831,118
Avg Monthly Rent $5,766
ZIP Codes 1

Investing in Marathon Real Estate

This is a distressed-leaning corner of Florida: Marathon has 1 ZIPs and a sizable population, and the investment math only works for investors who truly understand the market.

A 3.0 rating and a 5-year CAGR of 0.0% are the kinds of numbers that warrant real local underwriting, not spreadsheet tourism. Marathon is in that category.

The $5,766/mo / $831K relationship in Marathon looks lackluster once vacancy and capex are incorporated into underwriting. seems to the realized yield tends to disappoint.

Distressed-leaning demographics in Marathon — soft income growth, high rent burden, population shifts — are among the reasons the ★★★☆☆ rating sits where it does.

A great house in the wrong ZIP is still a bad deal — screen every market by cash flow & cap rate.
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Landlord Ground Truth

Real numbers from people who own or manage rentals in Marathon, FL. Anonymous, moderated, never written by AI.

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Avg Home Value
$831,118
Avg Monthly Rent
$5,766
1% Rule
✗ Below
Landlord Friendly (FL)

📉 Market Crash Risk Index

Based on Key West, FL metro

5/10
Elevated Risk
Price YoY
0/3
N/A
Rent YoY
0/2
N/A
Below List
3/3
89%
Days Pending
2/2
142 days

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❄️ Cool Market — Key West, FL metro
142
Days to pending
5.0%
Listings with price cuts
0.0%
Sale-to-list ratio
📅 Data as of August 29, 2026 — updated weekly

ZIP Codes in Marathon, FL

Screen every ZIP in Marathon

Filter Marathon’s ZIPs by cap rate, vacancy, appreciation and 30+ more criteria, and export your shortlist to CSV — with the Investor plan ($19/mo).

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Frequently Asked Questions About Marathon, FL

Are homes affordable in Marathon, FL?

Marathon, FL median home values land near $831K. That is reasonable territory for investors looking at $5,766/mo-per-month rentals.

Are tenants stable in Marathon, FL?

Marathon, FL draws a even-keeled base of working renters. Demand at the $5,766/mo rent level is reasonable for standard single-family and small multi rentals.

Is Marathon, FL landlord-friendly?

FL ranks as a landlord-friendly state for landlord-tenant law. Marathon generally follows the statewide framework, so landlords face reasonable operating rules.

How quickly do rentals get leased in Marathon, FL?

Marathon, FL carries elevated vacancy risk. Expect even-keeled absorption at market rents of $5,766/mo.

What strategy should investors use in Marathon, FL?

Investors usually favor careful cash-flow rentals with hands-on management in Marathon, FL. With home values at $831K and rents near $5,766/mo, other strategies can work but produce steady rather than outsized returns.

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