Total monthly cost of ownership
Cost to Own a Home in Marathon, Florida
A $684,000 home here costs
$5,255per month, all in, with 20% down at today's 7.24% 30-year fixed rate. By the 28% rule that takes a household income of about $225,000 a year.
A standard mortgage calculator would have told you $3,729. The real number is $1,526 higher every month, 41% more than the payment most buyers budget for.
Compare Monroe County with anywhere in America · full county breakdown
Where every dollar goes
Only the first line is a mortgage payment. Change any assumption above and every figure below recalculates.
Marathon against Monroe County and Florida
| Measure | Marathon | Monroe County |
|---|---|---|
| Median home value | $683,700 | $723,800 |
| Median property tax | $3,707 | $3,943 |
| Effective tax rate | 0.542% | 0.545% |
| Median gross rent | $1,592 | $1,959 |
| Population | 9,831 | 81,840 |
The weather behind that power bill
Marathon sits in Monroe County, which averages a high of 92.6°F in its hottest month and a low of 53.1°F in its coldest, with 55.28" of precipitation a year and 48% of it in a single three-month stretch. That climate drives 4,136 cooling and 230 heating degree days, which is what sets the $165 electricity line above.
See the full climate breakdown for Monroe County , month by month temperatures, rainy season timing, snowfall and heating and cooling costs.
Other cities in Monroe County
Talk to someone who works this market
These are Marathon averages. What one specific house costs to own, or what it would sell for today, depends on the street and the condition of the place. We will connect you with one licensed local agent who works Marathon every week. Free, no obligation, and we never sell your details to a list.
I'm looking to buy in Marathon I already own here and may sell
Common questions
How much does it cost to own a home in Marathon?
A $684,000 home in Marathon, Florida costs approximately $5,255 per month with 20% down at 7.24%. That is $3,729 principal and interest, $309 property tax, $413 homeowners insurance, $233 utilities and $570 set aside for maintenance.
What is the property tax rate in Marathon?
Marathon has an effective property tax rate of 0.542%, based on a median home value of $683,700 and median real estate taxes of $3,707. That is in line with the Monroe County average of 0.545%.
What is the average home price in Marathon?
The median owner-occupied home value in Marathon, Florida is $683,700, against $723,800 across Monroe County.
Is it cheaper to rent or buy in Marathon?
Median gross rent in Marathon is $1,592 a month, against $5,255 to own the median home all in. Renting costs less month to month here, though renting builds no equity.
What salary do you need to buy a home in Marathon?
Using the standard 28% rule, housing costs at no more than 28% of gross income, buying the median home in Marathon, Florida at today's rate takes a household income of roughly $225,000 a year. That covers the full $5,255 monthly cost, not just the mortgage payment.
Sources & methodology
- Median home value, real estate taxes, gross rent and population for Marathon, US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
- Homeowners insurance, NAIC average premium for Florida.
- Electricity price, EIA Electric Power Monthly Table 5.6.A.
- Mortgage rate, Freddie Mac PMMS, refreshed weekly.
- Maintenance (1%/yr) and water and sewer ($68/mo) are national estimates. Every assumption above is editable.