Total monthly cost of ownership
Cost to Own a Home in Rio, Florida
A $300,000 home here costs
$2,412per month, all in — with 20% down at today's 6.66% 30-year fixed rate.
A standard mortgage calculator would have told you $1,542. The real number is $870 higher every month — 56% more than the payment most buyers budget for.
Where every dollar goes
Only the first line is a mortgage payment. Change any assumption above and every figure below recalculates.
Rio against Martin County and Florida
| Measure | Rio | Martin County |
|---|---|---|
| Median home value | $299,600 | $386,500 |
| Median property tax | $2,809 | $3,120 |
| Effective tax rate | 0.938% | 0.807% |
| Median gross rent | — | $1,499 |
| Population | 1,265 | 160,464 |
The weather behind that power bill
Rio sits in Martin County, which averages a high of 90.8°F in its hottest month and a low of 53.6°F in its coldest, with 64.16" of precipitation a year and 40% of it in a single three-month stretch. That climate drives 3,528 cooling and 337 heating degree days, which is what sets the $136 electricity line above.
See the full climate breakdown for Martin County — month by month temperatures, rainy season timing, snowfall and heating and cooling costs.
Other cities in Martin County
Common questions
How much does it cost to own a home in Rio?
A $300,000 home in Rio, Florida costs approximately $2,412 per month with 20% down at 6.66%. That is $1,542 principal and interest, $235 property tax, $181 homeowners insurance, $204 utilities and $250 set aside for maintenance.
What is the property tax rate in Rio?
Rio has an effective property tax rate of 0.938%, based on a median home value of $299,600 and median real estate taxes of $2,809. That is higher than the Martin County average of 0.807%.
What is the average home price in Rio?
The median owner-occupied home value in Rio, Florida is $299,600, against $386,500 across Martin County.
Is it cheaper to rent or buy in Rio?
Rent data is not published for Rio at this level of detail.
Sources & methodology
- Median home value, real estate taxes, gross rent and population for Rio — 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.